$289+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LHR
Jun 27 — Jul 41
Round-trip
1 adult, Economy
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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 May 28, 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 May 28, 2026.
This Orbitz deal was found by Cheapflights users on 5/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:00 pm
SAT
- LHR
2 stops53h 30m
Multiple Airlines
Mon 11/97:30 pm
LHR
- SAT
2 stops28h 03m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$769
This Cheapflightsfares deal was found by Cheapflights users on 5/23. 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.
Wed 12/302:01 pm
SAT
- LHR
1 stop11h 54m
Lufthansa
Thu 1/148:45 am
LHR
- SAT
2 stops20h 23m
Lufthansa
Deal found 5/23![Lufthansa logo]()
$858
This Iberia deal was found by Cheapflights users on 5/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/303:00 pm
SAT
- LHR
1 stop15h 00m
Iberia
Wed 1/137:40 pm
LHR
- SAT
2 stops18h 42m
Iberia
Deal found 5/26![Iberia logo]()
$868
This Iberia deal was found by Cheapflights users on 5/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:45 pm
SAT
- LHR
1 stop14h 15m
Iberia
Wed 11/47:40 pm
LHR
- SAT
2 stops18h 44m
Iberia
Deal found 5/27![Iberia logo]()
$869
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Tue 9/89:07 am
SAT
- LHR
2 stops15h 48m
United Airlines
Tue 9/226:50 am
LHR
- SAT
2 stops19h 48m
United Airlines
Deal found 5/23![United Airlines logo]()
$872
This United Airlines deal was found by Cheapflights users on 5/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:15 pm
SAT
- LHR
1 stop11h 40m
United Airlines
Tue 9/86:50 am
LHR
- SAT
2 stops15h 41m
United Airlines
Deal found 5/27![United Airlines logo]()
$873
This FlightHub deal was found by Cheapflights users on 5/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:10 pm
SAT
- LHR
2 stops19h 30m
Scandinavian Airlines
Mon 11/236:40 am
LHR
- SAT
2 stops23h 48m
Scandinavian Airlines
Deal found 5/26![Scandinavian Airlines logo]()
$875
This United Airlines deal was found by Cheapflights users on 5/24. 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 8/269:07 am
SAT
- LHR
2 stops15h 23m
United Airlines
Tue 9/16:55 am
LHR
- SAT
2 stops19h 43m
United Airlines
Deal found 5/24![United Airlines logo]()
$876
This Delta deal was found by Cheapflights users on 5/26. 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 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 stops17h 30m
Delta
Thu 1/148:40 am
LHR
- SAT
2 stops17h 42m
Delta
Deal found 5/26![Delta logo]()
$877
This Expedia deal was found by Cheapflights users on 5/26. 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.
Mon 9/72:45 pm
SAT
- LHR
1 stop15h 25m
Iberia
Mon 9/148:00 pm
LHR
- SAT
2 stops33h 21m
Iberia
Deal found 5/26![Iberia logo]()
$879
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 May 28, 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 May 28, 2026.
This United Airlines deal was found by Cheapflights users on 5/25. 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.
Tue 9/11:00 pm
SAT
- LHR
1 stop12h 15m
United Airlines
Tue 9/86:50 am
LHR
- SAT
2 stops15h 41m
United Airlines
Deal found 5/25![United Airlines logo]()
$872
This Delta deal was found by Cheapflights users on 5/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:45 am
SAT
- LHR
2 stops14h 35m
Delta
Wed 11/46:30 am
LHR
- SAT
2 stops17h 14m
Delta
Deal found 5/27![Delta logo]()
$878
This Scandinavian Airlines deal was found by Cheapflights users on 5/22. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:15 pm
SAT
- LHR
2 stops24h 15m
Scandinavian Airlines
Mon 11/97:05 am
LHR
- SAT
3 stops21h 22m
Scandinavian Airlines
Deal found 5/22![Scandinavian Airlines logo]()
$884
This United Airlines deal was found by Cheapflights users on 5/23. 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 9/25:30 am
SAT
- LHR
1 stop24h 05m
United Airlines
Tue 9/85:40 pm
LHR
- SAT
1 stop33h 33m
United Airlines
Deal found 5/23![United Airlines logo]()
$887
This Delta deal was found by Cheapflights users on 5/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:55 am
SAT
- LHR
2 stops17h 15m
Delta
Tue 9/88:40 am
LHR
- SAT
2 stops17h 30m
Delta
Deal found 5/25![Delta logo]()
$927
This United Airlines deal was found by Cheapflights users on 5/25. 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 9/31:00 pm
SAT
- LHR
1 stop12h 15m
United Airlines
Tue 9/86:50 am
LHR
- SAT
2 stops15h 41m
United Airlines
Deal found 5/25![United Airlines logo]()
$922
This Delta deal was found by Cheapflights users on 5/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:46 am
SAT
- LHR
2 stops14h 24m
Delta
Wed 8/198:40 am
LHR
- SAT
2 stops18h 34m
Delta
Deal found 5/25![Delta logo]()
$937
This Delta deal was found by Cheapflights users on 5/24. 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.
Fri 9/47:55 am
SAT
- LHR
1 stop16h 30m
Delta
Mon 9/78:40 am
LHR
- SAT
2 stops18h 49m
Delta
Deal found 5/24![Delta logo]()
$973
This United Airlines deal was found by Cheapflights users on 5/24. 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 7/231:39 pm
SAT
- LHR
1 stop16h 46m
United Airlines
Fri 7/317:45 am
LHR
- SAT
2 stops15h 59m
United Airlines
Deal found 5/24![United Airlines logo]()
$1,117
This Delta deal was found by Cheapflights users on 5/24. 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.
Fri 8/712:05 pm
SAT
- LHR
1 stop17h 15m
Delta
Sat 8/158:40 am
LHR
- SAT
2 stops20h 03m
Delta
Deal found 5/24![Delta logo]()
$1,101
This Delta deal was found by Cheapflights users on 5/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:16 pm
SAT
- LHR
1 stop12h 59m
Delta
Mon 7/2711:30 am
LHR
- SAT
2 stops16h 52m
Delta
Deal found 5/26![Delta logo]()
$1,111
Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated May 28, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated May 28, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 5/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:01 pm
SAT
- LHR
1 stop16h 39m
Lufthansa
Thu 6/117:30 am
LHR
- SAT
2 stops19h 24m
Lufthansa
Deal found 5/24![Lufthansa logo]()
$1,289
This Expedia deal was found by Cheapflights users on 5/26. 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.
Tue 6/24:18 pm
SAT
- LHR
1 stop13h 17m
Multiple Airlines
Tue 6/166:50 am
LHR
- SAT
2 stops19h 32m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,268
This Expedia deal was found by Cheapflights users on 5/26. 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.
Tue 6/24:18 pm
SAT
- LHR
1 stop13h 17m
Lufthansa
Tue 6/161:40 pm
LHR
- SAT
1 stop13h 33m
Lufthansa
Deal found 5/26![Lufthansa logo]()
$1,297
This Cheapflightsfares deal was found by Cheapflights users on 5/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:00 am
SAT
- LHR
2 stops19h 40m
Lufthansa
Tue 6/97:25 am
LHR
- SAT
2 stops19h 48m
Lufthansa
Deal found 5/24![Lufthansa logo]()
$1,299
This Cheapflightsfares deal was found by Cheapflights users on 5/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:00 am
SAT
- LHR
1 stop17h 55m
Lufthansa
Wed 6/1012:15 pm
LHR
- SAT
1 stop14h 07m
Lufthansa
Deal found 5/26![Lufthansa logo]()
$1,305
This Travelocity deal was found by Cheapflights users on 5/24. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/168:30 am
SAT
- LHR
2 stops31h 30m
Multiple Airlines
Wed 7/16:00 am
LHR
- SAT
2 stops21h 13m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$1,274
This Gurufare deal was found by Cheapflights users on 5/26. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/242:10 pm
SAT
- LHR
2 stops17h 20m
Aer Lingus
Wed 7/17:40 am
LHR
- SAT
2 stops19h 33m
Aer Lingus
Deal found 5/26![Aer Lingus logo]()
$1,269
This Mytrip deal was found by Cheapflights users on 5/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:50 am
SAT
- LHR
2 stops21h 25m
Multiple Airlines
Tue 7/79:10 pm
LHR
- SAT
3 stops30h 03m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$1,247
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 May 28, 2026.
Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 28, 2026.
This eDestinos deal was found by Cheapflights users on 5/24. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:43 pm
SAT
- LHR
1 stop14h 37m
Virgin Atlantic
Deal found 5/24![Virgin Atlantic logo]()
$289
This TravelUp deal was found by Cheapflights users on 5/23. 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.
Sun 11/85:52 pm
SAT
- LHR
1 stop12h 08m
British Airways
Deal found 5/23![British Airways logo]()
$324
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Tue 9/19:07 am
SAT
- LHR
2 stops15h 48m
United Airlines
Deal found 5/24![United Airlines logo]()
$328
This Virgin Atlantic deal was found by Cheapflights users on 5/23. 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.
Sun 11/810:45 am
SAT
- LHR
2 stops15h 20m
Virgin Atlantic
Deal found 5/23![Virgin Atlantic logo]()
$332
This Expedia deal was found by Cheapflights users on 5/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:10 pm
SAT
- LHR
1 stop12h 45m
Lufthansa
Deal found 5/27![Lufthansa logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 5/27. 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.
Thu 9/109:25 am
SAT
- LHR
3 stops41h 55m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$365
This Mytrip deal was found by Cheapflights users on 5/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:00 am
SAT
- LHR
2 stops19h 00m
Air Canada
Deal found 5/27![Air Canada logo]()
$371
This oojo deal was found by Cheapflights users on 5/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:09 pm
SAT
- LHR
1 stop11h 41m
British Airways
Deal found 5/24![British Airways logo]()
$376
This Delta deal was found by Cheapflights users on 5/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:00 am
SAT
- LHR
2 stops17h 10m
Delta
Deal found 5/27![Delta logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 5/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:25 am
SAT
- LHR
3 stops29h 55m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$406
This Expedia deal was found by Cheapflights users on 5/26. 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.
Tue 7/74:18 pm
SAT
- LHR
1 stop13h 17m
Lufthansa
Deal found 5/26![Lufthansa logo]()
$415
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 May 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $852 (United Airlines) |
One-way from | $289 (eDestinos) |
Popular in | June |
Cheapest in | October |
Average price | $986 |
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 May 28, 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
Quickest round-trip
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 9/1
1:00 pm-7:15 am
1 stop12h 15m
London Heathrow
Tue 9/8
6:50 am-4:31 pm
2 stops15h 41m
$872
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 10/27
10:45 am-6:20 am
2 stops14h 35m
London Heathrow
Wed 11/4
6:30 am-5:44 pm
2 stops17h 14m
$878
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 11/6
12:15 pm-6:30 pm
2 stops24h 15m
London Heathrow
Mon 11/9
7:05 am-10:27 pm
3 stops21h 22m
$884
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 9/2
5:30 am-11:35 am
1 stop24h 05m
London Heathrow
Tue 9/8
5:40 pm-9:13 pm
1 stop33h 33m
$887
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Thu 9/3
1:00 pm-7:15 am
1 stop12h 15m
London Heathrow
Tue 9/8
6:50 am-4:31 pm
2 stops15h 41m
$922
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Thu 9/3
7:55 am-7:10 am
2 stops17h 15m
London Heathrow
Tue 9/8
8:40 am-8:10 pm
2 stops17h 30m
$927
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 8/12
10:46 am-7:10 am
2 stops14h 24m
London Heathrow
Wed 8/19
8:40 am-9:14 pm
2 stops18h 34m
$937
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 9/4
7:55 am-6:25 am
1 stop16h 30m
London Heathrow
Mon 9/7
8:40 am-9:29 pm
2 stops18h 49m
$973
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 8/7
12:05 pm-11:20 am
1 stop17h 15m
London Heathrow
Sat 8/15
8:40 am-10:43 pm
2 stops20h 03m
$1,101
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sun 7/19
6:16 pm-1:15 pm
1 stop12h 59m
London Heathrow
Mon 7/27
11:30 am-10:22 pm
2 stops16h 52m
$1,111
Showing 1-10 of 17 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 May.
| 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $604). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of $1,286). 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 May 28, 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.
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Overall
7.9
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Stansted
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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 May 28, 2026.
San Antonio and Heathrow flights
Browse other San Antonio and Heathrow flight options. Last updated on May 28, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from San Antonio to Heathrow
Discover the top 6 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 May 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$529 | Average$924 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$530 | Average$678 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$530 | Average$940 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$556 | Average$803 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$600 | Average$780 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$611 | Average$1,004 | FlexibilityNo cancel fee | On-time77% |