$458+ Cheap flights from the United Kingdom to California
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
Jul 27 — Aug 31
Round-trip
1 adult, Economy
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Find cheap flights from United Kingdom to California with Cheapflights
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Cheapest flights from United Kingdom to CaliforniaExplore the most affordable flight options available from United Kingdom to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 27, 2026.
Explore the most affordable flight options available from United Kingdom to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 27, 2026.
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:30 am
LHR
- ONT
2 stops20h 23m
United Airlines
Mon 11/26:46 am
ONT
- LHR
1 stop17h 09m
United Airlines
Deal found 6/24![United Airlines logo]()
$553
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:30 am
LHR
- ONT
2 stops18h 46m
United Airlines
Wed 9/21:18 pm
ONT
- LHR
2 stops23h 22m
United Airlines
Deal found 6/24![United Airlines logo]()
$555
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:30 am
LHR
- ONT
2 stops20h 26m
United Airlines
Sat 10/315:00 am
ONT
- LHR
1 stop21h 40m
United Airlines
Deal found 6/23![United Airlines logo]()
$556
This United Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:40 pm
LHR
- ONT
1 stop16h 15m
United Airlines
Tue 7/141:50 pm
ONT
- LHR
1 stop13h 20m
United Airlines
Deal found 6/25![United Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/21:40 pm
LHR
- ONT
1 stop16h 15m
United Airlines
Wed 7/151:50 pm
ONT
- LHR
2 stops32h 55m
United Airlines
Deal found 6/24![United Airlines logo]()
$585
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:35 am
LHR
- ONT
1 stop15h 41m
United Airlines
Wed 9/301:24 pm
ONT
- LHR
1 stop12h 16m
United Airlines
Deal found 6/24![United Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:40 pm
LHR
- ONT
1 stop16h 15m
United Airlines
Wed 7/151:18 pm
ONT
- LHR
1 stop15h 17m
United Airlines
Deal found 6/23![United Airlines logo]()
$587
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/292:50 pm
LHR
- ONT
1 stop13h 52m
United Airlines
Sun 7/121:50 pm
ONT
- LHR
1 stop16h 20m
United Airlines
Deal found 6/22![United Airlines logo]()
$588
This Air Canada deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:30 am
LHR
- ONT
2 stops35h 16m
Air Canada
Sun 9/275:00 am
ONT
- LHR
2 stops17h 30m
Air Canada
Deal found 6/23![Air Canada logo]()
$592
This Cheapflightsfares deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/98:30 am
LHR
- SFO
2 stops22h 27m
Lufthansa
Sun 7/127:15 pm
SFO
- LHR
1 stop17h 25m
Lufthansa
Deal found 6/25![Lufthansa logo]()
$598
This Air Canada deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:00 am
LHR
- SFO
2 stops19h 30m
Air Canada
Tue 11/39:00 am
SFO
- LHR
2 stops18h 20m
Air Canada
Deal found 6/25![Air Canada logo]()
$599
This oojo deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:35 pm
LGW
- SFO
1 stop30h 00m
SWISS
Sat 9/52:20 pm
SFO
- LGW
1 stop34h 05m
SWISS
Deal found 6/25![SWISS logo]()
$599
Best flights from United Kingdom to CaliforniaDiscover carefully curated flight deals from United Kingdom to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 27, 2026.
Discover carefully curated flight deals from United Kingdom to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 27, 2026.
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:25 am
LHR
- ONT
1 stop17h 28m
United Airlines
Sun 9/271:52 pm
ONT
- LHR
1 stop16h 18m
United Airlines
Deal found 6/23![United Airlines logo]()
$586
This British Airways deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:45 am
LCY
- SFO
1 stop17h 10m
British Airways
Sun 10/185:40 pm
SFO
- LCY
1 stop19h 05m
British Airways
Deal found 6/23![British Airways logo]()
$664
This Virgin Atlantic deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:15 pm
LCY
- SFO
1 stop23h 30m
Virgin Atlantic
Wed 8/191:45 pm
SFO
- LCY
1 stop20h 45m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$669
This oojo deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:15 am
LCY
- SFO
1 stop15h 15m
SWISS
Wed 11/47:25 pm
SFO
- LCY
1 stop13h 40m
SWISS
Deal found 6/26![SWISS logo]()
$681
This KLM deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:30 am
LHR
- SFO
1 stop13h 15m
KLM
Tue 8/255:55 pm
SFO
- LHR
Nonstop10h 20m
KLM
Deal found 6/22![KLM logo]()
$686
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:25 am
LGW
- LAX
1 stop16h 19m
Delta
Thu 10/86:00 pm
LAX
- LGW
1 stop14h 00m
Delta
Deal found 6/24![Delta logo]()
$689
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/154:35 pm
LGW
- SFO
1 stop30h 10m
TAP AIR PORTUGAL
Mon 12/284:35 pm
SFO
- LGW
2 stops32h 15m
TAP AIR PORTUGAL
Deal found 6/23![TAP AIR PORTUGAL logo]()
$710
This Scandinavian Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:50 pm
LHR
- SFO
2 stops26h 50m
Scandinavian Airlines
Mon 9/74:45 pm
SFO
- LHR
2 stops15h 40m
Scandinavian Airlines
Deal found 6/23![Scandinavian Airlines logo]()
$740
This KLM deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:20 am
LHR
- SFO
1 stop14h 35m
Multiple Airlines
Thu 12/314:45 pm
SFO
- LHR
Nonstop10h 10m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$754
This Alaska Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:45 pm
LHR
- ONT
1 stop16h 00m
Alaska Airlines
Mon 11/26:00 am
ONT
- LHR
1 stop22h 20m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$758
This ITA Airways deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:25 pm
LCY
- SFO
2 stops25h 50m
ITA Airways
Thu 12/33:05 pm
SFO
- LCY
2 stops19h 50m
ITA Airways
Deal found 6/26![ITA Airways logo]()
$804
This Turkish Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:45 pm
STN
- SFO
1 stop25h 05m
Turkish Airlines
Wed 10/146:45 pm
SFO
- STN
1 stop31h 10m
Turkish Airlines
Deal found 6/24![Turkish Airlines logo]()
$981
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:00 pm
LHR
- ONT
1 stop15h 01m
United Airlines
Fri 10/301:13 pm
ONT
- LHR
1 stop13h 27m
United Airlines
Deal found 6/22![United Airlines logo]()
$587
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:00 pm
LHR
- ONT
1 stop15h 01m
United Airlines
Sat 9/261:22 pm
ONT
- LHR
1 stop12h 18m
United Airlines
Deal found 6/23![United Airlines logo]()
$587
This British Airways deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:45 am
LCY
- SFO
1 stop17h 05m
British Airways
Tue 9/225:30 am
SFO
- LCY
2 stops25h 45m
British Airways
Deal found 6/23![British Airways logo]()
$665
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:45 am
LHR
- ONT
2 stops19h 00m
Delta
Wed 8/121:06 pm
ONT
- LHR
1 stop12h 54m
Delta
Deal found 6/24![Delta logo]()
$692
This Virgin Atlantic deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:00 pm
LGW
- LAX
2 stops24h 57m
Virgin Atlantic
Mon 9/216:00 pm
LAX
- LGW
1 stop14h 00m
Virgin Atlantic
Deal found 6/22![Virgin Atlantic logo]()
$703
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/301:40 pm
LHR
- ONT
1 stop16h 19m
United Airlines
Mon 9/71:18 pm
ONT
- LHR
1 stop12h 22m
United Airlines
Deal found 6/22![United Airlines logo]()
$587
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:25 pm
LGW
- SFO
1 stop30h 05m
TAP AIR PORTUGAL
Tue 9/157:20 pm
SFO
- LGW
2 stops30h 25m
TAP AIR PORTUGAL
Deal found 6/24![TAP AIR PORTUGAL logo]()
$722
This SWISS deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/98:05 pm
LHR
- SFO
1 stop28h 10m
SWISS
Thu 7/167:35 pm
SFO
- LHR
2 stops17h 55m
SWISS
Deal found 6/24![SWISS logo]()
$756
This Alaska Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:00 pm
LHR
- ONT
1 stop14h 24m
Alaska Airlines
Fri 12/1112:00 pm
ONT
- LHR
1 stop16h 20m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$759
This British Airways deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/143:00 pm
LHR
- ONT
1 stop15h 34m
British Airways
Tue 8/257:05 am
ONT
- LHR
1 stop17h 55m
British Airways
Deal found 6/22![British Airways logo]()
$699
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:15 pm
LHR
- ONT
1 stop14h 44m
United Airlines
Fri 9/181:18 pm
ONT
- LHR
1 stop12h 22m
United Airlines
Deal found 6/22![United Airlines logo]()
$587
This Scandinavian Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:05 am
LHR
- LAX
2 stops17h 45m
Scandinavian Airlines
Thu 9/37:10 pm
LAX
- LHR
2 stops30h 25m
Scandinavian Airlines
Deal found 6/24![Scandinavian Airlines logo]()
$800
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/98:40 am
LHR
- LAX
2 stops20h 11m
Delta
Sat 8/157:15 am
LAX
- LHR
1 stop18h 45m
Delta
Deal found 6/22![Delta logo]()
$742
This Virgin Atlantic deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/147:45 am
LCY
- LAX
2 stops21h 15m
Virgin Atlantic
Thu 12/311:45 pm
LAX
- LCY
1 stop21h 50m
Virgin Atlantic
Deal found 6/24![Virgin Atlantic logo]()
$749
This Condor deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:20 am
LGW
- SFO
2 stops17h 57m
Multiple Airlines
Fri 10/164:30 pm
SFO
- LGW
1 stop18h 20m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$830
This Lufthansa deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:25 am
LGW
- LAX
1 stop15h 05m
SWISS
Fri 8/147:35 pm
LAX
- LGW
1 stop14h 15m
SWISS
Deal found 6/22![SWISS logo]()
$781
This KLM deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:45 am
LHR
- LAS
1 stop14h 50m
KLM
Sat 8/112:36 pm
LAS
- LHR
1 stop13h 44m
KLM
Deal found 6/26![KLM logo]()
$881
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:35 am
LGW
- SFO
2 stops62h 30m
TAP AIR PORTUGAL
Sat 11/74:35 pm
SFO
- LGW
2 stops33h 30m
TAP AIR PORTUGAL
Deal found 6/22![TAP AIR PORTUGAL logo]()
$810
Last-minute flights from United Kingdom to CaliforniaDiscover last-minute flight deals from United Kingdom to California. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from United Kingdom to California. Data last updated June 27, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/292:50 pm
LHR
- ONT
1 stop13h 52m
United Airlines
Sun 7/121:50 pm
ONT
- LHR
1 stop16h 20m
United Airlines
Deal found 6/22![United Airlines logo]()
$588
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/111:25 am
LHR
- ONT
1 stop17h 17m
United Airlines
Fri 7/315:45 am
ONT
- LHR
1 stop18h 10m
United Airlines
Deal found 6/24![United Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/21:40 pm
LHR
- ONT
1 stop16h 15m
United Airlines
Wed 7/151:50 pm
ONT
- LHR
2 stops32h 55m
United Airlines
Deal found 6/24![United Airlines logo]()
$585
This Finnair deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/211:00 am
LHR
- LAX
1 stop13h 19m
Finnair
Wed 7/81:25 pm
LAX
- LHR
1 stop14h 50m
Finnair
Deal found 6/25![Finnair logo]()
$606
This Orbitz deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:50 am
LHR
- SFO
2 stops19h 28m
Multiple Airlines
Fri 7/109:05 pm
SFO
- LHR
1 stop14h 35m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$604
This Expedia deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/310:05 am
LHR
- ONT
1 stop17h 54m
British Airways
Fri 7/3112:35 pm
ONT
- LHR
1 stop16h 15m
British Airways
Deal found 6/24![British Airways logo]()
$607
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:30 am
LHR
- LAX
1 stop17h 12m
Austrian Airlines
Sat 7/113:35 pm
LAX
- LHR
Nonstop10h 35m
Austrian Airlines
Deal found 6/27![Austrian Airlines logo]()
$602
This Iberia deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/412:15 pm
LHR
- LAX
1 stop15h 18m
Iberia
Mon 7/206:10 pm
LAX
- LHR
Nonstop10h 35m
Iberia
Deal found 6/25![Iberia logo]()
$607
This United Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:40 pm
LHR
- ONT
1 stop16h 15m
United Airlines
Sat 7/254:20 pm
ONT
- LHR
1 stop13h 50m
United Airlines
Deal found 6/25![United Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/91:40 pm
LHR
- ONT
1 stop16h 15m
United Airlines
Tue 7/211:50 pm
ONT
- LHR
1 stop13h 20m
United Airlines
Deal found 6/23![United Airlines logo]()
$587
This Cheapflightsfares deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/98:30 am
LHR
- SFO
2 stops22h 27m
Lufthansa
Sun 7/127:15 pm
SFO
- LHR
1 stop17h 25m
Lufthansa
Deal found 6/25![Lufthansa logo]()
$598
This TravelUp deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:30 am
LHR
- SFO
1 stop15h 45m
Lufthansa
Sat 7/257:50 pm
SFO
- LHR
Nonstop10h 20m
Lufthansa
Deal found 6/25![Lufthansa logo]()
$603
One-way flights from United Kingdom to CaliforniaSearch for one-way flight options from United Kingdom to California. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
Search for one-way flight options from United Kingdom to California. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
This American Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:45 pm
LHR
- ONT
2 stops34h 19m
American Airlines
Deal found 6/26![American Airlines logo]()
$458
This TravelUp deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Deal found 6/23![British Airways logo]()
$461
This TravelUp deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:45 pm
LHR
- ONT
1 stop15h 21m
British Airways
Deal found 6/26![British Airways logo]()
$462
This TravelUp deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Deal found 6/24![British Airways logo]()
$463
This Expedia deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:05 pm
LHR
- ONT
1 stop17h 16m
Lufthansa
Deal found 6/26![Lufthansa logo]()
$465
This American Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:15 am
LHR
- ONT
2 stops18h 32m
American Airlines
Deal found 6/27![American Airlines logo]()
$468
This American Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:15 am
LHR
- ONT
2 stops19h 54m
American Airlines
Deal found 6/25![American Airlines logo]()
$469
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:15 am
LHR
- ONT
2 stops22h 51m
American Airlines
Deal found 6/22![American Airlines logo]()
$470
This Cheapflightsfares deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Deal found 6/27![British Airways logo]()
$477
This SmartFares deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:00 pm
LHR
- ONT
1 stop14h 24m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$478
This TravelUp deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:55 pm
LHR
- ONT
1 stop15h 14m
British Airways
Deal found 6/23![British Airways logo]()
$479
This Cheapflightsfares deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Deal found 6/23![British Airways logo]()
$481
Find flight deals from United Kingdom to California
Keep the following information in mind while searching for United Kingdom to California flight deals. Data was last updated June 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $553 (United Airlines) |
One-way from | $458 (American Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $729 |
Good round-trip deal | $656 or less |
Good one-way deal | $393 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from United Kingdom to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 27, 2026.
Use the filters below to find and compare flights from the United Kingdom to California that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Wed 9/23
11:25 am-8:53 pm
1 stop17h 28m
Ontario
Sun 9/27
1:52 pm-2:10 pm
1 stop16h 18m
$586
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Wed 9/23
1:00 pm-8:01 pm
1 stop15h 01m
Ontario
Fri 10/30
1:13 pm-9:40 am
1 stop13h 27m
$587
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Fri 9/18
1:00 pm-8:01 pm
1 stop15h 01m
Ontario
Sat 9/26
1:22 pm-9:40 am
1 stop12h 18m
$587
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Sun 8/30
1:40 pm-9:59 pm
1 stop16h 19m
Ontario
Mon 9/7
1:18 pm-9:40 am
1 stop12h 22m
$587
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Thu 9/10
4:15 pm-10:59 pm
1 stop14h 44m
Ontario
Fri 9/18
1:18 pm-9:40 am
1 stop12h 22m
$587
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Wed 10/14
6:45 am-3:55 pm
1 stop17h 10m
San Francisco
Sun 10/18
5:40 pm-8:45 pm
1 stop19h 05m
$664
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Mon 9/14
6:45 am-3:50 pm
1 stop17h 05m
San Francisco
Tue 9/22
5:30 am-3:15 pm
2 stops25h 45m
$665
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Thu 8/6
8:15 pm-11:45 am
1 stop23h 30m
San Francisco
Wed 8/19
1:45 pm-6:30 pm
1 stop20h 45m
$669
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Wed 10/28
9:15 am-5:30 pm
1 stop15h 15m
San Francisco
Wed 11/4
7:25 pm-5:05 pm
1 stop13h 40m
$681
Quickest round-trip
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Fri 8/21
6:30 am-11:45 am
1 stop13h 15m
San Francisco
Tue 8/25
5:55 pm-12:15 pm
Nonstop10h 20m
$686
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from United Kingdom to California
Have a flexible travel schedule? Discover the best time to fly to California from United Kingdom with our price prediction graph.
LHR-ONT
LHR-SFO
LHR-LAX
LGW-SFO
LGW-LAX
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from the United Kingdom to California
GB0-USCA
LHR-ONT
LHR-SFO
LHR-LAX
LGW-SFO
What is the cheapest month to book a flight from United Kingdom to California?
Currently, September is the cheapest month in which you can book a flight from United Kingdom to California (average of $615). Flying from United Kingdom to California in December is currently the most expensive (average of $816). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from GB to CA?
Find hourly flight availability from United Kingdom to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 27, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to California as you normally would.
Weekly flight availability from United Kingdom to California
Explore weekly flight availability from United Kingdom to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 27, 2026.
The most flights from GB0 to USCA are scheduled on a Monday (53 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (45 on average).
How far ahead should I book a flight from United Kingdom to California?
Booking 40 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to California. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing California
Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated June 27, 2026.
Peruse reviews from past customers who have flown with Virgin Atlantic,United Airlines, andAmerican Airlines from the United Kingdom to California to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.5
Crew
8.1
Food
6.9
Boarding
7.7
Comfort
7.3
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Overall
7.5
Crew
8.1
Food
6.9
Boarding
7.7
Comfort
7.3
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Overall
7.5
Crew
8.1
Food
6.9
Boarding
7.7
Comfort
7.3
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Overall
7.5
Crew
8.1
Food
6.9
Boarding
7.7
Comfort
7.3
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Overall
7.5
Crew
8.1
Food
6.9
Boarding
7.7
Comfort
7.3
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Overall
7.5
Crew
8.1
Food
6.9
Boarding
7.7
Comfort
7.3
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdwin,May 2026
LHR - LAX
Related info for your journey
Find useful and relevant information for your journey from United Kingdom to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Alternative routes for United Kingdom to California
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to California by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from United Kingdom to California by cabin class
Find flights from United Kingdom to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.
United Kingdom and California flights
Browse other United Kingdom and California flight options. Last updated on June 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from California
Find the right flight back to United Kingdom after your stay in California
United Kingdom to California flights
Consider these flights traveling from United Kingdom to California.
Top 10 airlines flying from United Kingdom to California
Discover the top 10 airlines that operate flights from United Kingdom to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$396 | Average$833 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$409 | Average$723 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$415 | Average$559 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$416 | Average$940 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$449 | Average$500 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$454 | Average$749 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$468 | Average$655 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$494 | Average$807 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$494 | Average$769 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$500 | Average$662 | FlexibilityNo cancel fee | On-time78% |