$469+ Cheap flights from London (LON) 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LAX
Jul 5 — Jul 121
Round-trip
1 adult, Economy
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Cheapest flights from London to CaliforniaExplore the most affordable flight options available from London to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 5, 2026.
Explore the most affordable flight options available from London to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 5, 2026.
This Flightcatchers deal was found by Cheapflights users on 6/4. 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 Flightcatchers is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:55 pm
LHR
- ONT
2 stops29h 46m
Virgin Atlantic
Fri 7/106:01 pm
ONT
- LHR
1 stop13h 34m
Virgin Atlantic
Deal found 6/4![Virgin Atlantic logo]()
$606
This TravelUp deal was found by Cheapflights users on 6/4. 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.
Mon 6/153:00 pm
LHR
- ONT
1 stop15h 36m
British Airways
Wed 8/52:27 pm
ONT
- LHR
1 stop15h 58m
British Airways
Deal found 6/4![British Airways logo]()
$607
This TravelUp deal was found by Cheapflights users on 6/3. 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.
Thu 6/253:00 pm
LHR
- ONT
1 stop15h 36m
British Airways
Mon 7/62:15 pm
ONT
- LHR
1 stop14h 35m
British Airways
Deal found 6/3![British Airways logo]()
$608
This Expedia deal was found by Cheapflights users on 6/4. 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.
Tue 9/294:25 pm
LHR
- ONT
1 stop25h 04m
British Airways
Sat 10/102:22 pm
ONT
- LHR
1 stop14h 28m
British Airways
Deal found 6/4![British Airways logo]()
$617
This Expedia deal was found by Cheapflights users on 6/4. 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.
Tue 11/33:00 pm
LHR
- ONT
1 stop15h 23m
British Airways
Tue 11/104:47 pm
ONT
- LHR
1 stop12h 28m
British Airways
Deal found 6/4![British Airways logo]()
$619
This Flightcatchers deal was found by Cheapflights users on 6/4. 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 Flightcatchers is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:05 pm
LHR
- ONT
2 stops32h 28m
Virgin Atlantic
Sat 10/1012:00 pm
ONT
- LHR
2 stops16h 05m
Virgin Atlantic
Deal found 6/4![Virgin Atlantic logo]()
$624
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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.
Sat 10/312:25 pm
LHR
- ONT
1 stop14h 10m
British Airways
Sat 11/74:47 pm
ONT
- LHR
1 stop12h 28m
British Airways
Deal found 6/5![British Airways logo]()
$631
This British Airways deal was found by Cheapflights users on 6/4. 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.
Thu 9/311:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Tue 11/32:59 pm
ONT
- LHR
1 stop13h 01m
British Airways
Deal found 6/4![British Airways logo]()
$635
This British Airways deal was found by Cheapflights users on 6/3. 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 10/283:00 pm
LHR
- ONT
1 stop15h 06m
British Airways
Sat 11/72:59 pm
ONT
- LHR
1 stop13h 01m
British Airways
Deal found 6/3![British Airways logo]()
$636
This lastminute.com deal was found by Cheapflights users on 6/3. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:20 am
LHR
- ONT
2 stops21h 39m
Multiple Airlines
Fri 7/101:11 pm
ONT
- LHR
1 stop17h 54m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$637
This TravelUp deal was found by Cheapflights users on 6/5. 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 8/2210:55 am
LHR
- ONT
1 stop13h 29m
Virgin Atlantic
Mon 9/77:05 am
ONT
- LHR
1 stop15h 20m
Virgin Atlantic
Deal found 6/5![Virgin Atlantic logo]()
$647
This Finnair deal was found by Cheapflights users on 6/1. 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 10/810:20 am
LHR
- LAX
1 stop14h 50m
Finnair
Thu 10/226:50 pm
LAX
- LHR
1 stop17h 50m
Finnair
Deal found 6/1![Finnair logo]()
$667
Best flights from London to CaliforniaDiscover carefully curated flight deals from London to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 5, 2026.
Discover carefully curated flight deals from London to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 5, 2026.
This British Airways deal was found by Cheapflights users on 6/4. 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.
Sun 11/13:00 pm
LHR
- ONT
1 stop15h 23m
British Airways
Thu 11/122:59 pm
ONT
- LHR
1 stop13h 01m
British Airways
Deal found 6/4![British Airways logo]()
$635
This Virgin Atlantic deal was found by Cheapflights users on 6/4. 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.
Sun 11/110:00 am
LGW
- LAX
2 stops20h 52m
Virgin Atlantic
Thu 11/126:30 am
LAX
- LGW
2 stops18h 30m
Virgin Atlantic
Deal found 6/4![Virgin Atlantic logo]()
$683
This Delta deal was found by Cheapflights users on 6/5. 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.
Tue 8/182:30 pm
LHR
- LAX
Nonstop11h 15m
Delta
Sun 8/232:00 pm
LAX
- LHR
1 stop17h 35m
Delta
Deal found 6/5![Delta logo]()
$689
This United Airlines deal was found by Cheapflights users on 6/2. 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 11/207:30 am
LHR
- ONT
2 stops21h 51m
United Airlines
Thu 12/35:00 am
ONT
- LHR
2 stops16h 55m
United Airlines
Deal found 6/2![United Airlines logo]()
$736
This Scandinavian Airlines deal was found by Cheapflights users on 6/2. 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.
Wed 9/97:50 pm
LHR
- SFO
2 stops26h 50m
Scandinavian Airlines
Tue 9/154:45 pm
SFO
- LHR
2 stops18h 05m
Scandinavian Airlines
Deal found 6/2![Scandinavian Airlines logo]()
$738
This KLM deal was found by Cheapflights users on 5/31. 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.
Mon 6/226:30 am
LHR
- SFO
1 stop13h 15m
KLM
Mon 7/1311:15 pm
SFO
- LHR
Nonstop10h 15m
KLM
Deal found 5/31![KLM logo]()
$757
This American Airlines deal was found by Cheapflights users on 6/1. 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 6/159:15 am
LHR
- LAX
1 stop17h 55m
Multiple Airlines
Sun 6/288:55 pm
LAX
- LHR
Nonstop10h 30m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$776
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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.
Thu 9/245:00 pm
LHR
- ONT
1 stop14h 24m
Alaska Airlines
Tue 10/62:14 pm
ONT
- LHR
1 stop16h 51m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$779
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/2. 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 stops20h 05m
TAP AIR PORTUGAL
Deal found 6/2![TAP AIR PORTUGAL logo]()
$820
This Air Transat deal was found by Cheapflights users on 6/2. 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 Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:40 pm
LGW
- SFO
1 stop31h 40m
Air Transat
Wed 10/141:20 pm
SFO
- LGW
1 stop34h 35m
Air Transat
Deal found 6/2![Air Transat logo]()
$825
This ITA Airways deal was found by Cheapflights users on 6/2. 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 10/64:30 pm
LCY
- SFO
2 stops28h 45m
ITA Airways
Wed 10/143:15 pm
SFO
- LCY
2 stops19h 35m
ITA Airways
Deal found 6/2![ITA Airways logo]()
$853
This Condor deal was found by Cheapflights users on 6/4. 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.
Wed 10/73:35 pm
LGW
- SFO
1 stop30h 55m
Condor
Sat 10/104:30 pm
SFO
- LGW
1 stop18h 15m
Condor
Deal found 6/4![Condor logo]()
$866
This SWISS deal was found by Cheapflights users on 6/2. 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.
Tue 10/67:15 pm
LCY
- SFO
1 stop29h 20m
SWISS
Sat 10/102:25 pm
SFO
- LCY
1 stop15h 20m
SWISS
Deal found 6/2![SWISS logo]()
$897
This Turkish Airlines deal was found by Cheapflights users on 6/2. 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.
Fri 10/26:55 am
STN
- LAX
1 stop36h 45m
Turkish Airlines
Sat 10/108:10 pm
LAX
- STN
1 stop29h 45m
Turkish Airlines
Deal found 6/2![Turkish Airlines logo]()
$1,027
This Virgin Atlantic deal was found by Cheapflights users on 6/4. 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 9/218:15 pm
LCY
- LAX
1 stop23h 35m
Virgin Atlantic
Wed 9/306:00 am
LAX
- LCY
2 stops17h 55m
Virgin Atlantic
Deal found 6/4![Virgin Atlantic logo]()
$702
This Delta deal was found by Cheapflights users on 6/4. 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.
Wed 8/1910:00 am
LCY
- SFO
1 stop33h 45m
Delta
Sat 9/197:00 am
SFO
- LCY
2 stops22h 15m
Delta
Deal found 6/4![Delta logo]()
$716
This British Airways deal was found by Cheapflights users on 6/4. 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.
Fri 10/98:20 am
LHR
- SFO
1 stop15h 00m
British Airways
Sat 10/109:23 pm
SFO
- LHR
1 stop16h 17m
British Airways
Deal found 6/4![British Airways logo]()
$723
This Scandinavian Airlines deal was found by Cheapflights users on 6/1. 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
Sun 9/64:45 pm
SFO
- LHR
2 stops18h 05m
Scandinavian Airlines
Deal found 6/1![Scandinavian Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 6/4. 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 9/46:55 am
LHR
- ONT
2 stops21h 58m
United Airlines
Tue 9/81:56 pm
ONT
- LHR
1 stop13h 14m
United Airlines
Deal found 6/4![United Airlines logo]()
$740
This KLM deal was found by Cheapflights users on 5/31. 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 8/289:55 am
LHR
- LAX
Nonstop11h 15m
KLM
Sat 9/123:50 pm
LAX
- LHR
Nonstop10h 25m
KLM
Deal found 5/31![KLM logo]()
$778
This Virgin Atlantic deal was found by Cheapflights users on 6/4. 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.
Wed 9/28:25 am
LCY
- LAX
1 stop14h 20m
Virgin Atlantic
Tue 9/156:40 am
LAX
- LCY
2 stops18h 10m
Virgin Atlantic
Deal found 6/4![Virgin Atlantic logo]()
$714
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 8/195:00 pm
LHR
- ONT
1 stop14h 24m
Alaska Airlines
Fri 8/283:07 pm
ONT
- LHR
1 stop15h 58m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$789
This Delta deal was found by Cheapflights users on 6/4. 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.
Wed 8/1910:00 am
LCY
- SFO
2 stops21h 44m
Delta
Sun 9/138:55 am
SFO
- LCY
2 stops23h 45m
Delta
Deal found 6/4![Delta logo]()
$721
This British Airways deal was found by Cheapflights users on 6/3. 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.
Thu 6/183:05 pm
LHR
- LAX
Nonstop11h 15m
British Airways
Wed 7/16:05 pm
LAX
- LHR
Nonstop10h 40m
British Airways
Deal found 6/3![British Airways logo]()
$738
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/4. 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.
Thu 11/54:00 pm
LGW
- SFO
1 stop32h 05m
TAP AIR PORTUGAL
Mon 11/94:35 pm
SFO
- LGW
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 6/4![TAP AIR PORTUGAL logo]()
$834
This United Airlines deal was found by Cheapflights users on 6/1. 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 9/131:40 pm
LHR
- ONT
1 stop16h 19m
United Airlines
Fri 9/251:18 pm
ONT
- LHR
1 stop12h 22m
United Airlines
Deal found 6/1![United Airlines logo]()
$768
This KLM deal was found by Cheapflights users on 6/5. 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.
Mon 6/299:55 am
LHR
- LAX
Nonstop11h 15m
KLM
Sun 7/511:15 pm
LAX
- LHR
Nonstop10h 20m
KLM
Deal found 6/5![KLM logo]()
$778
This Virgin Atlantic deal was found by Cheapflights users on 6/4. 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 9/75:50 pm
LCY
- SFO
1 stop25h 55m
Virgin Atlantic
Tue 9/226:00 am
SFO
- LCY
2 stops17h 55m
Virgin Atlantic
Deal found 6/4![Virgin Atlantic logo]()
$717
This Alaska Airlines deal was found by Cheapflights users on 6/4. 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.
Mon 8/175:00 pm
LHR
- SFO
1 stop24h 20m
Alaska Airlines
Sat 9/1912:10 pm
SFO
- LHR
1 stop18h 55m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$794
This British Airways deal was found by Cheapflights users on 5/31. 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 7/153:00 pm
LHR
- ONT
1 stop15h 34m
British Airways
Mon 7/2010:25 am
ONT
- LHR
1 stop14h 35m
British Airways
Deal found 5/31![British Airways logo]()
$761
Last-minute flights from London to CaliforniaDiscover last-minute flight deals from London to California. Data last updated June 5, 2026 and is based on user searches.
Discover last-minute flight deals from London to California. Data last updated June 5, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 6/3. 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 6/103:00 pm
LHR
- ONT
1 stop15h 36m
British Airways
Tue 7/72:15 pm
ONT
- LHR
1 stop16h 10m
British Airways
Deal found 6/3![British Airways logo]()
$663
This American Airlines deal was found by Cheapflights users on 6/3. 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.
Thu 6/1111:00 am
LHR
- ONT
1 stop15h 21m
American Airlines
Tue 7/712:35 pm
ONT
- LHR
1 stop14h 20m
American Airlines
Deal found 6/3![American Airlines logo]()
$659
This oojo deal was found by Cheapflights users on 6/4. 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 6/112:25 pm
LHR
- ONT
1 stop16h 14m
British Airways
Fri 6/1911:59 pm
ONT
- LHR
1 stop28h 51m
British Airways
Deal found 6/4![British Airways logo]()
$668
This oojo deal was found by Cheapflights users on 6/4. 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.
Fri 6/1212:00 pm
LHR
- ONT
1 stop18h 36m
British Airways
Sun 6/281:11 pm
ONT
- LHR
1 stop13h 39m
British Airways
Deal found 6/4![British Airways logo]()
$670
This TravelUp deal was found by Cheapflights users on 6/4. 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.
Mon 6/153:00 pm
LHR
- ONT
1 stop15h 36m
British Airways
Wed 8/52:27 pm
ONT
- LHR
1 stop15h 58m
British Airways
Deal found 6/4![British Airways logo]()
$607
This Flightcatchers deal was found by Cheapflights users on 6/3. 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 Flightcatchers is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:55 pm
LHR
- ONT
2 stops29h 46m
Virgin Atlantic
Fri 7/31:00 pm
ONT
- LHR
2 stops16h 05m
Virgin Atlantic
Deal found 6/3![Virgin Atlantic logo]()
$664
This TravelUp deal was found by Cheapflights users on 6/3. 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.
Thu 6/253:00 pm
LHR
- ONT
1 stop15h 36m
British Airways
Mon 7/62:15 pm
ONT
- LHR
1 stop14h 35m
British Airways
Deal found 6/3![British Airways logo]()
$608
This Flightcatchers deal was found by Cheapflights users on 6/4. 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 Flightcatchers is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:55 pm
LHR
- ONT
2 stops29h 46m
Virgin Atlantic
Fri 7/106:01 pm
ONT
- LHR
1 stop13h 34m
Virgin Atlantic
Deal found 6/4![Virgin Atlantic logo]()
$606
This lastminute.com deal was found by Cheapflights users on 6/3. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:20 am
LHR
- ONT
2 stops21h 39m
Multiple Airlines
Fri 7/101:11 pm
ONT
- LHR
1 stop17h 54m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$637
This American Airlines deal was found by Cheapflights users on 6/2. 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.
Fri 7/36:15 am
LHR
- LAX
1 stop17h 50m
American Airlines
Tue 7/76:10 pm
LAX
- LHR
Nonstop10h 35m
American Airlines
Deal found 6/2![American Airlines logo]()
$669
This British Airways deal was found by Cheapflights users on 6/4. 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 7/83:00 pm
LHR
- ONT
1 stop15h 34m
British Airways
Thu 7/232:15 pm
ONT
- LHR
1 stop14h 35m
British Airways
Deal found 6/4![British Airways logo]()
$658
This TravelUp deal was found by Cheapflights users on 6/5. 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 7/285:45 pm
LHR
- ONT
1 stop37h 07m
Virgin Atlantic
Wed 8/56:01 pm
ONT
- LHR
1 stop13h 34m
Virgin Atlantic
Deal found 6/5![Virgin Atlantic logo]()
$660
One-way flights from London to CaliforniaSearch for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated June 5, 2026.
Search for one-way flight options from London to California. Find affordable one-way fares based on user searches. Data last updated June 5, 2026.
This TravelUp deal was found by Cheapflights users on 6/3. 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 8/2611:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Deal found 6/3![British Airways logo]()
$469
This TravelUp deal was found by Cheapflights users on 6/5. 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 8/2511:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Deal found 6/5![British Airways logo]()
$470
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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.
Tue 9/111:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Deal found 6/3![British Airways logo]()
$484
This British Airways deal was found by Cheapflights users on 6/4. 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 10/199:15 am
LHR
- ONT
2 stops21h 51m
British Airways
Deal found 6/4![British Airways logo]()
$485
This British Airways deal was found by Cheapflights users on 6/3. 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.
Sat 8/2211:30 am
LHR
- ONT
2 stops19h 29m
British Airways
Deal found 6/3![British Airways logo]()
$486
This Iberia deal was found by Cheapflights users on 6/5. 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.
Sun 11/86:05 am
LHR
- ONT
2 stops24h 18m
Iberia
Deal found 6/5![Iberia logo]()
$489
This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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 9/311:00 am
LHR
- ONT
1 stop15h 15m
British Airways
Deal found 6/2![British Airways logo]()
$490
This Iberia deal was found by Cheapflights users on 6/4. 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.
Sun 10/410:50 am
LHR
- ONT
2 stops20h 46m
Iberia
Deal found 6/4![Iberia logo]()
$494
This Expedia deal was found by Cheapflights users on 6/2. 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.
Thu 11/263:00 pm
LHR
- ONT
1 stop15h 23m
British Airways
Deal found 6/2![British Airways logo]()
$496
This JetBlue deal was found by Cheapflights users on 5/31. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/112:20 pm
LHR
- LAS
1 stop17h 39m
JetBlue
Deal found 5/31![JetBlue logo]()
$573
This Kiwi.com deal was found by Cheapflights users on 5/31. 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.
Mon 9/146:30 am
LHR
- LAS
2 stops25h 19m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$574
This Kiwi.com deal was found by Cheapflights users on 6/2. 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.
Wed 6/244:50 pm
LHR
- LAS
2 stops37h 27m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$575
Find flight deals from London to California
Keep the following information in mind while searching for London to California flight deals. Data was last updated June 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $606 (Flightcatchers) |
One-way from | $469 (TravelUp) |
Popular in | December |
Cheapest in | September |
Average price | $670 |
Good round-trip deal | $695 or less |
Good one-way deal | $393 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from London 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 5, 2026.
Use the filters below to find and compare flights from London to California that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Sun 11/1
3:00 pm-10:23 pm
1 stop15h 23m
Ontario
Thu 11/12
2:59 pm-12:00 pm
1 stop13h 01m
$635
LondonLos Angeles
LGW - LAX
LGWLAX
London Gatwick
Sun 11/1
10:00 am-10:52 pm
2 stops20h 52m
Los Angeles
Thu 11/12
6:30 am-9:00 am
2 stops18h 30m
$683
LondonLos Angeles
LHR - LAX
LHRLAX
London Heathrow
Tue 8/18
2:30 pm-5:45 pm
Nonstop11h 15m
Los Angeles
Sun 8/23
2:00 pm-3:35 pm
1 stop17h 35m
$689
LondonLos Angeles
LCY - LAX
LCYLAX
London City
Mon 9/21
8:15 pm-11:50 am
1 stop23h 35m
Los Angeles
Wed 9/30
6:00 am-7:55 am
2 stops17h 55m
$702
LondonLos Angeles
LCY - LAX
LCYLAX
London City
Wed 9/2
8:25 am-2:45 pm
1 stop14h 20m
Los Angeles
Tue 9/15
6:40 am-8:50 am
2 stops18h 10m
$714
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Wed 8/19
10:00 am-11:45 am
1 stop33h 45m
San Francisco
Sat 9/19
7:00 am-1:15 pm
2 stops22h 15m
$716
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Mon 9/7
5:50 pm-11:45 am
1 stop25h 55m
San Francisco
Tue 9/22
6:00 am-7:55 am
2 stops17h 55m
$717
LondonSan Francisco
LCY - SFO
LCYSFO
London City
Wed 8/19
10:00 am-11:44 pm
2 stops21h 44m
San Francisco
Sun 9/13
8:55 am-4:40 pm
2 stops23h 45m
$721
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Fri 10/9
8:20 am-3:20 pm
1 stop15h 00m
San Francisco
Sat 10/10
9:23 pm-9:40 pm
1 stop16h 17m
$723
LondonOntario
LHR - ONT
LHRONT
London Heathrow
Fri 11/20
7:30 am-9:21 pm
2 stops21h 51m
Ontario
Thu 12/3
5:00 am-5:55 am
2 stops16h 55m
$736
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from London to California
Have a flexible travel schedule? Discover the best time to fly to California from London with our price prediction graph.
LHR-ONT
LGW-LAX
LHR-LAX
LHR-SFO
LGW-SFO
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 London to California
LON-USCA
LHR-ONT
LGW-LAX
LHR-LAX
LHR-SFO
What is the cheapest month to book a flight from London to California?
Currently, September is the cheapest month in which you can book a flight from London to California (average of $570). Flying from London to California in December is currently the most expensive (average of $798). 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 LON to CA?
Find hourly flight availability from London 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 5, 2026.
When flying from London to California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from London to California
Explore weekly flight availability from London 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 5, 2026.
The most flights from LON to USCA are scheduled on a Monday (53 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (53 on average).
How much does it cost to fly round-trip from London to California?
How far ahead should I book a flight from London to California?
The price you pay for your flight from London to California may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 5, 2026.
Read through reviews of airlines operating flights from London to California, such as KLM,Virgin Atlantic, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.8
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Entertainment
7.2
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from London 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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Alternative routes for London 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 London to California by cabin class
Find flights from London to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.
London and California flights
Browse other London and California flight options. Last updated on June 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
London to California flights
Consider these flights traveling from London to California.
Top 10 airlines flying from London to California
Discover the top 10 airlines that operate flights from London 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 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$729 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$381 | Average$558 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$396 | Average$824 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$416 | Average$669 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$449 | Average$494 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$468 | Average$624 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$487 | Average$782 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$494 | Average$784 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$514 | Average$655 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$515 | Average$774 | FlexibilityNo cancel fee | On-time70% |