$288+ 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
Jul 4 — Jul 111
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Heathrow with Cheapflights
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 June 4, 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 June 4, 2026.
This Expedia deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:30 pm
SAT
- LHR
2 stops53h 05m
Multiple Airlines
Mon 10/197:30 pm
LHR
- SAT
2 stops31h 46m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$769
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.
Sun 11/812:15 pm
SAT
- LHR
2 stops23h 25m
Scandinavian Airlines
Sat 11/145:00 pm
LHR
- SAT
2 stops35h 27m
Scandinavian Airlines
Deal found 6/4![Scandinavian Airlines logo]()
$813
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.
Thu 11/124:10 pm
SAT
- LHR
2 stops41h 50m
Scandinavian Airlines
Sun 11/156:40 am
LHR
- SAT
2 stops23h 48m
Scandinavian Airlines
Deal found 6/2![Scandinavian Airlines logo]()
$836
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:45 pm
SAT
- LHR
1 stop30h 40m
United Airlines
Mon 10/196:55 am
LHR
- SAT
2 stops19h 42m
United Airlines
Deal found 5/30![United Airlines logo]()
$852
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.
Mon 10/265:00 pm
SAT
- LHR
2 stops19h 05m
Lufthansa
Tue 11/107:40 am
LHR
- SAT
2 stops21h 28m
Lufthansa
Deal found 6/3![Lufthansa logo]()
$867
This Iberia 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 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 6/3![Iberia logo]()
$868
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:42 pm
SAT
- LHR
1 stop12h 08m
Iberia
Tue 11/107:30 am
LHR
- SAT
2 stops20h 27m
Iberia
Deal found 6/2![Iberia logo]()
$869
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3010:45 am
SAT
- LHR
1 stop16h 15m
Delta
Thu 1/1410:00 am
LHR
- SAT
2 stops19h 20m
Delta
Deal found 6/1![Delta logo]()
$872
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.
Wed 10/145:30 am
SAT
- LHR
3 stops26h 40m
United Airlines
Thu 10/226:55 am
LHR
- SAT
2 stops19h 42m
United Airlines
Deal found 6/4![United Airlines logo]()
$873
This FlightHub 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 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 stops23h 30m
Scandinavian Airlines
Mon 11/236:40 am
LHR
- SAT
2 stops21h 47m
Scandinavian Airlines
Deal found 6/3![Scandinavian Airlines logo]()
$875
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:00 am
SAT
- LHR
2 stops15h 10m
United Airlines
Tue 1/126:35 am
LHR
- SAT
2 stops19h 40m
United Airlines
Deal found 5/31![United Airlines logo]()
$876
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/306:45 am
SAT
- LHR
2 stops18h 20m
Delta
Wed 1/138:40 am
LHR
- SAT
2 stops17h 42m
Delta
Deal found 6/3![Delta logo]()
$877
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 June 4, 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 June 4, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:00 am
SAT
- LHR
2 stops15h 10m
United Airlines
Tue 1/126:35 am
LHR
- SAT
2 stops19h 40m
United Airlines
Deal found 5/31![United Airlines logo]()
$876
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.
Mon 10/2610:45 am
SAT
- LHR
2 stops15h 20m
Delta
Tue 11/108:40 am
LHR
- SAT
2 stops18h 52m
Delta
Deal found 6/4![Delta logo]()
$877
This United 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:35 pm
SAT
- LHR
1 stop25h 50m
Multiple Airlines
Thu 8/205:40 pm
LHR
- SAT
1 stop33h 33m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$948
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.
Mon 10/264:10 pm
SAT
- LHR
2 stops24h 30m
Scandinavian Airlines
Tue 11/107:05 am
LHR
- SAT
3 stops22h 13m
Scandinavian Airlines
Deal found 6/2![Scandinavian Airlines logo]()
$1,005
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:46 am
SAT
- LHR
1 stop13h 39m
Delta
Wed 8/199:55 am
LHR
- SAT
2 stops17h 19m
Delta
Deal found 6/1![Delta logo]()
$932
This United Airlines deal was found by Cheapflights users on 5/30. 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 8/145:30 am
SAT
- LHR
1 stop24h 05m
United Airlines
Tue 8/185:40 pm
LHR
- SAT
1 stop33h 33m
United Airlines
Deal found 5/30![United Airlines logo]()
$1,039
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2811:29 am
SAT
- LHR
1 stop13h 41m
Delta
Fri 8/79:55 am
LHR
- SAT
2 stops18h 39m
Delta
Deal found 6/1![Delta logo]()
$1,033
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:00 pm
SAT
- LHR
2 stops15h 15m
Delta
Wed 8/56:30 am
LHR
- SAT
2 stops16h 41m
Delta
Deal found 5/31![Delta logo]()
$1,038
Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated June 4, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated June 4, 2026 and is based on user searches.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2012:37 pm
SAT
- LHR
1 stop14h 13m
Delta
Wed 8/56:30 am
LHR
- SAT
2 stops16h 41m
Delta
Deal found 5/31![Delta logo]()
$1,033
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:38 am
SAT
- LHR
1 stop13h 47m
Delta
Fri 7/3111:30 am
LHR
- SAT
2 stops16h 52m
Delta
Deal found 6/2![Delta logo]()
$1,041
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:38 am
SAT
- LHR
1 stop13h 47m
Multiple Airlines
Wed 8/512:25 pm
LHR
- SAT
1 stop15h 04m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,057
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/201:39 pm
SAT
- LHR
1 stop14h 01m
Lufthansa
Fri 7/318:30 am
LHR
- SAT
1 stop18h 43m
Lufthansa
Deal found 6/2![Lufthansa logo]()
$1,060
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:04 pm
SAT
- LHR
2 stops16h 16m
Delta
Tue 7/2811:30 am
LHR
- SAT
2 stops16h 52m
Delta
Deal found 6/1![Delta logo]()
$1,045
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:40 am
SAT
- LHR
1 stop24h 55m
Lufthansa
Tue 7/285:40 pm
LHR
- SAT
1 stop33h 33m
Lufthansa
Deal found 6/1![Lufthansa logo]()
$1,049
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.
Sat 7/254:18 pm
SAT
- LHR
2 stops23h 02m
United Airlines
Fri 8/78:30 am
LHR
- SAT
1 stop18h 43m
United Airlines
Deal found 6/2![United Airlines logo]()
$1,061
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/251:39 pm
SAT
- LHR
2 stops34h 51m
Air Canada
Fri 8/79:30 am
LHR
- SAT
2 stops19h 27m
Air Canada
Deal found 6/2![Air Canada logo]()
$1,075
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2711:29 am
SAT
- LHR
1 stop13h 41m
Delta
Wed 8/126:30 am
LHR
- SAT
2 stops16h 41m
Delta
Deal found 6/3![Delta logo]()
$991
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/272:15 pm
SAT
- LHR
1 stop11h 30m
United Airlines
Wed 8/1212:05 pm
LHR
- SAT
1 stop15h 08m
United Airlines
Deal found 6/3![United Airlines logo]()
$1,002
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.
Mon 7/2711:43 am
SAT
- LHR
2 stops22h 57m
Lufthansa
Wed 8/127:30 pm
LHR
- SAT
2 stops31h 46m
Lufthansa
Deal found 6/3![Lufthansa logo]()
$1,006
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 June 4, 2026.
Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:43 pm
SAT
- LHR
2 stops15h 52m
Virgin Atlantic
Deal found 6/2![Virgin Atlantic logo]()
$288
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:28 am
SAT
- LHR
1 stop18h 12m
British Airways
Deal found 6/1![British Airways logo]()
$327
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.
Tue 9/112:29 pm
SAT
- LHR
1 stop12h 26m
British Airways
Deal found 6/4![British Airways logo]()
$328
This oojo deal was found by Cheapflights users on 5/30. 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.
Tue 12/14:30 pm
SAT
- LHR
1 stop13h 45m
British Airways
Deal found 5/30![British Airways logo]()
$330
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.
Mon 10/59:47 am
SAT
- LHR
2 stops18h 38m
United Airlines
Deal found 6/2![United Airlines logo]()
$332
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:35 am
SAT
- LHR
3 stops16h 55m
Air Canada
Deal found 6/1![Air Canada logo]()
$344
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:10 am
SAT
- LHR
1 stop20h 55m
British Airways
Deal found 6/2![British Airways logo]()
$377
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/812:15 pm
SAT
- LHR
2 stops14h 35m
Delta
Deal found 6/2![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 June 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $769 (Expedia) |
One-way from | $288 (eDestinos) |
Popular in | June |
Cheapest in | October |
Average price | $1,296 |
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 June 4, 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 12/1
10:00 am-7:10 am
2 stops15h 10m
London Heathrow
Tue 1/12
6:35 am-8:15 pm
2 stops19h 40m
$876
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 10/26
10:45 am-7:05 am
2 stops15h 20m
London Heathrow
Tue 11/10
8:40 am-9:32 pm
2 stops18h 52m
$877
Quickest round-trip
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 8/12
10:46 am-6:25 am
1 stop13h 39m
London Heathrow
Wed 8/19
9:55 am-9:14 pm
2 stops17h 19m
$932
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 8/10
1:35 pm-9:25 pm
1 stop25h 50m
London Heathrow
Thu 8/20
5:40 pm-9:13 pm
1 stop33h 33m
$948
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 10/26
4:10 pm-9:40 pm
2 stops24h 30m
London Heathrow
Tue 11/10
7:05 am-11:18 pm
3 stops22h 13m
$1,005
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 7/28
11:29 am-7:10 am
1 stop13h 41m
London Heathrow
Fri 8/7
9:55 am-10:34 pm
2 stops18h 39m
$1,033
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 7/20
4:00 pm-1:15 pm
2 stops15h 15m
London Heathrow
Wed 8/5
6:30 am-5:11 pm
2 stops16h 41m
$1,038
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 8/14
5:30 am-11:35 am
1 stop24h 05m
London Heathrow
Tue 8/18
5:40 pm-9:13 pm
1 stop33h 33m
$1,039
Cheapest one-way
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 12/1
12:15 pm-8:45 am
2 stops14h 30m
$332
Quickest one-way
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 11/30
4:25 pm-11:40 am
1 stop13h 15m
$332
Showing 1-10 of 20 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 June.
| 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 $1,296). 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 June 4, 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
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
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
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Browse thousands of different options on Cheapflights for your next trip
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Find flights from San Antonio to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 June 4, 2026.
San Antonio and Heathrow flights
Browse other San Antonio and Heathrow flight options. Last updated on June 4, 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 June 4, 2026.
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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 June 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$529 | Average$924 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$530 | Average$674 | 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% |