$227+ Cheap flights from San Antonio (SAT) to Heathrow (LHR)
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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LHR
Aug 8 — Aug 151
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from San Antonio to HeathrowExplore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
Explore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
This KAYAK deal was found by Cheapflights users on 7/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Fri 10/237:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/8![Aer Lingus logo]()
$523
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 8/197:40 am
LHR
- SAT
2 stops19h 25m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$545
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 10/217:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$566
This KAYAK deal was found by Cheapflights users on 7/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Fri 10/237:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/8![Aer Lingus logo]()
$602
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 8/197:40 am
LHR
- SAT
2 stops19h 25m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$624
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Mon 10/197:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$645
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 8/197:40 am
LHR
- SAT
2 stops19h 25m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$671
This KAYAK deal was found by Cheapflights users on 7/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Mon 10/197:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/8![Aer Lingus logo]()
$681
This Cheapflightsfares deal was found by Cheapflights users on 7/9. 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 11/2412:07 pm
SAT
- LHR
2 stops16h 38m
Lufthansa
Thu 11/267:30 am
LHR
- SAT
2 stops19h 14m
Lufthansa
Deal found 7/9![Lufthansa logo]()
$760
This KAYAK deal was found by Cheapflights users on 7/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:00 am
SAT
- LHR
2 stops17h 05m
Aer Lingus
Mon 10/197:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/6![Aer Lingus logo]()
$766
This Orbitz deal was found by Cheapflights users on 7/7. 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 11/67:30 pm
SAT
- LHR
2 stops53h 00m
Multiple Airlines
Mon 11/97:30 pm
LHR
- SAT
2 stops31h 14m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$768
This KAYAK deal was found by Cheapflights users on 7/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:00 am
SAT
- LHR
2 stops17h 05m
Aer Lingus
Mon 10/197:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/6![Aer Lingus logo]()
$827
Best flights from San Antonio to HeathrowDiscover carefully curated flight deals from San Antonio to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
Discover carefully curated flight deals from San Antonio to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
This Delta deal was found by Cheapflights users on 7/8. 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 10/2712:10 pm
SAT
- LHR
1 stop13h 10m
Delta
Wed 11/46:30 am
LHR
- SAT
2 stops19h 09m
Delta
Deal found 7/8![Delta logo]()
$871
This United Airlines deal was found by Cheapflights users on 7/6. 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 11/88:55 am
SAT
- LHR
2 stops19h 55m
United Airlines
Sat 11/146:35 am
LHR
- SAT
2 stops19h 50m
United Airlines
Deal found 7/6![United Airlines logo]()
$921
This Scandinavian Airlines deal was found by Cheapflights users on 7/5. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:43 pm
SAT
- LHR
3 stops22h 07m
Scandinavian Airlines
Sun 10/256:40 am
LHR
- SAT
2 stops22h 47m
Scandinavian Airlines
Deal found 7/5![Scandinavian Airlines logo]()
$1,012
This Delta deal was found by Cheapflights users on 7/6. 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 12/3010:45 am
SAT
- LHR
2 stops15h 10m
Delta
Wed 1/1311:45 am
LHR
- SAT
2 stops17h 35m
Delta
Deal found 7/6![Delta logo]()
$875
This United Airlines deal was found by Cheapflights users on 7/8. 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 8/59:37 am
SAT
- LHR
2 stops16h 53m
United Airlines
Wed 8/197:25 am
LHR
- SAT
2 stops19h 13m
United Airlines
Deal found 7/8![United Airlines logo]()
$932
This Delta deal was found by Cheapflights users on 7/9. 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.
Mon 10/262:30 pm
SAT
- LHR
2 stops13h 15m
Delta
Tue 11/108:40 am
LHR
- SAT
2 stops18h 52m
Delta
Deal found 7/9![Delta logo]()
$876
This Scandinavian Airlines deal was found by Cheapflights users on 7/6. 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 12/302:10 pm
SAT
- LHR
3 stops25h 25m
Scandinavian Airlines
Thu 1/1410:20 am
LHR
- SAT
2 stops18h 58m
Scandinavian Airlines
Deal found 7/6![Scandinavian Airlines logo]()
$1,012
This Delta deal was found by Cheapflights users on 7/5. 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 10/61:20 pm
SAT
- LHR
1 stop16h 45m
Delta
Sat 10/106:30 am
LHR
- SAT
2 stops20h 40m
Delta
Deal found 7/5![Delta logo]()
$921
This Delta deal was found by Cheapflights users on 7/8. 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.
Mon 8/241:20 pm
SAT
- LHR
1 stop13h 55m
Delta
Mon 8/316:30 am
LHR
- SAT
2 stops18h 16m
Delta
Deal found 7/8![Delta logo]()
$981
This Delta deal was found by Cheapflights users on 7/5. 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.
Mon 8/3112:37 pm
SAT
- LHR
1 stop25h 33m
Delta
Sun 10/254:10 pm
LHR
- SAT
1 stop23h 46m
Delta
Deal found 7/5![Delta logo]()
$1,016
Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated July 9, 2026 and is based on user searches.
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 8/197:40 am
LHR
- SAT
2 stops19h 25m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$545
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Mon 8/177:40 am
LHR
- SAT
2 stops19h 25m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$907
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 8/197:40 am
LHR
- SAT
2 stops19h 25m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$624
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 8/197:40 am
LHR
- SAT
2 stops19h 25m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$671
This lol.travel deal was found by Cheapflights users on 7/6. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:44 pm
SAT
- LHR
1 stop13h 16m
Finnair
Wed 8/198:55 am
LHR
- SAT
1 stop15h 44m
Finnair
Deal found 7/6![Finnair logo]()
$922
This lol.travel deal was found by Cheapflights users on 7/8. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/91:43 pm
SAT
- LHR
1 stop18h 42m
Finnair
Tue 8/258:55 am
LHR
- SAT
1 stop15h 44m
Finnair
Deal found 7/8![Finnair logo]()
$921
This Expedia deal was found by Cheapflights users on 7/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/192:45 pm
SAT
- LHR
1 stop12h 15m
Iberia
Wed 8/2611:30 am
LHR
- SAT
2 stops17h 20m
Iberia
Deal found 7/5![Iberia logo]()
$920
This KAYAK deal was found by Cheapflights users on 7/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 10/217:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/8![Aer Lingus logo]()
$602
This KAYAK deal was found by Cheapflights users on 7/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Mon 10/197:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/8![Aer Lingus logo]()
$681
This KAYAK deal was found by Cheapflights users on 7/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 10/217:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/8![Aer Lingus logo]()
$523
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Wed 10/217:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$566
This BusinessClass deal was found by Cheapflights users on 7/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:50 am
SAT
- LHR
2 stops17h 15m
Aer Lingus
Mon 10/197:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 7/7![Aer Lingus logo]()
$645
One-way flights from San Antonio to HeathrowSearch for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This KAYAK deal was found by Cheapflights users on 7/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:00 am
SAT
- LHR
2 stops17h 05m
Aer Lingus
Deal found 7/9![Aer Lingus logo]()
$227
This oojo deal was found by Cheapflights users on 7/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:51 am
SAT
- LHR
1 stop13h 04m
British Airways
Deal found 7/5![British Airways logo]()
$326
This United Airlines deal was found by Cheapflights users on 7/8. 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 11/231:25 pm
SAT
- LHR
1 stop16h 35m
United Airlines
Deal found 7/8![United Airlines logo]()
$332
This Orbitz deal was found by Cheapflights users on 7/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:46 pm
SAT
- LHR
1 stop14h 14m
Iberia
Deal found 7/5![Iberia logo]()
$333
This oojo deal was found by Cheapflights users on 7/8. 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.
Sat 10/106:00 pm
SAT
- LHR
1 stop30h 55m
British Airways
Deal found 7/8![British Airways logo]()
$337
This Delta deal was found by Cheapflights users on 7/8. 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.
Sun 11/226:05 pm
SAT
- LHR
1 stop33h 55m
Delta
Deal found 7/8![Delta logo]()
$343
This Air Canada deal was found by Cheapflights users on 7/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:35 am
SAT
- LHR
3 stops16h 55m
Air Canada
Deal found 7/5![Air Canada logo]()
$344
This Orbitz deal was found by Cheapflights users on 7/9. 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.
Thu 10/159:00 am
SAT
- LHR
2 stops15h 30m
Air Canada
Deal found 7/9![Air Canada logo]()
$362
This United Airlines deal was found by Cheapflights users on 7/8. 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 11/214:19 pm
SAT
- LHR
2 stops23h 01m
United Airlines
Deal found 7/8![United Airlines logo]()
$374
This oojo deal was found by Cheapflights users on 7/9. 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 10/83:09 pm
SAT
- LHR
1 stop11h 56m
British Airways
Deal found 7/9![British Airways logo]()
$376
This Delta deal was found by Cheapflights users on 7/8. 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.
Fri 12/118:00 am
SAT
- LHR
2 stops18h 45m
Delta
Deal found 7/8![Delta logo]()
$382
Find flight deals from San Antonio to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 9, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $523 (KAYAK) |
One-way from | $227 (KAYAK) |
Popular in | June |
Cheapest in | October |
Average price | $1,095 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Heathrow 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 July 9, 2026.
Use the filters below to find and compare flights from San Antonio to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 10/27
12:10 pm-6:20 am
1 stop13h 10m
London Heathrow
Wed 11/4
6:30 am-7:39 pm
2 stops19h 09m
$871
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 12/30
10:45 am-7:55 am
2 stops15h 10m
London Heathrow
Wed 1/13
11:45 am-11:20 pm
2 stops17h 35m
$875
Quickest round-trip
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 10/26
2:30 pm-8:45 am
2 stops13h 15m
London Heathrow
Tue 11/10
8:40 am-9:32 pm
2 stops18h 52m
$876
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sun 11/8
8:55 am-10:50 am
2 stops19h 55m
London Heathrow
Sat 11/14
6:35 am-8:25 pm
2 stops19h 50m
$921
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 10/6
1:20 pm-12:05 pm
1 stop16h 45m
London Heathrow
Sat 10/10
6:30 am-9:10 pm
2 stops20h 40m
$921
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 8/5
9:37 am-8:30 am
2 stops16h 53m
London Heathrow
Wed 8/19
7:25 am-8:38 pm
2 stops19h 13m
$932
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 8/24
1:20 pm-9:15 am
1 stop13h 55m
London Heathrow
Mon 8/31
6:30 am-6:46 pm
2 stops18h 16m
$981
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 8/31
2:43 pm-6:50 pm
3 stops22h 07m
London Heathrow
Sun 10/25
6:40 am-12:27 am
2 stops22h 47m
$1,012
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 12/30
2:10 pm-9:35 pm
3 stops25h 25m
London Heathrow
Thu 1/14
10:20 am-11:18 pm
2 stops18h 58m
$1,012
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 8/31
12:37 pm-8:10 pm
1 stop25h 33m
London Heathrow
Sun 10/25
4:10 pm-10:56 am
1 stop23h 46m
$1,016
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from San Antonio to Heathrow
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Heathrow in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-London Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on San Antonio-London Heathrow Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from San Antonio-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-London Heathrow Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Antonio to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Antonio with our price prediction graph.
SAT-LHR
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 San Antonio to London Heathrow Airport
How far ahead should I book a flight from San Antonio to London Heathrow Airport?
To ensure you get the cheapest price possible for a flight from San Antonio to London Heathrow Airport, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Antonio to London Heathrow Airport?
Currently, October is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of $580). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of $1,282). 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.
How much does it cost to fly round-trip from San Antonio to London Heathrow Airport?
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated July 9, 2026.
Peruse reviews from past customers who have flown with Delta,Virgin Atlantic, andUnited Airlines from San Antonio to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from San Antonio to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Watford
Northampton
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
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Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 9, 2026.
San Antonio and Heathrow flights
Browse other San Antonio and Heathrow flight options. Last updated on July 9, 2026.
Other flights from San Antonio
Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on July 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from San Antonio to Heathrow
Discover the top 5 airlines that operate flights from San Antonio to Heathrow. 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 July 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$529 | Average$931 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$530 | Average$656 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$530 | Average$986 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$555 | Average$900 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$600 | Average$777 | FlexibilityNo cancel fee | On-time72% |