$328+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LHR
Jul 9 — Jul 161
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Heathrow with Cheapflights
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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 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 June 9, 2026.
This eDestinos deal was found by Cheapflights users on 6/7. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:10 pm
SAT
- LHR
1 stop15h 30m
Virgin Atlantic
Tue 11/1712:30 pm
LHR
- SAT
1 stop13h 52m
Virgin Atlantic
Deal found 6/7![Virgin Atlantic logo]()
$779
This oojo deal was found by Cheapflights users on 6/8. 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.
Sun 11/82:10 pm
SAT
- LHR
2 stops21h 30m
Scandinavian Airlines
Sun 11/156:40 am
LHR
- SAT
2 stops21h 47m
Scandinavian Airlines
Deal found 6/8![Scandinavian Airlines logo]()
$812
This oojo deal was found by Cheapflights users on 6/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:10 pm
SAT
- LHR
2 stops19h 50m
Scandinavian Airlines
Fri 12/46:40 am
LHR
- SAT
2 stops23h 48m
Scandinavian Airlines
Deal found 6/6![Scandinavian Airlines logo]()
$836
This Orbitz deal was found by Cheapflights users on 6/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:50 pm
SAT
- LHR
2 stops50h 45m
Multiple Airlines
Mon 10/266:30 pm
LHR
- SAT
2 stops28h 03m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$839
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 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 stops17h 50m
Lufthansa
Tue 11/107:40 am
LHR
- SAT
2 stops21h 28m
Lufthansa
Deal found 6/7![Lufthansa logo]()
$867
This Iberia deal was found by Cheapflights users on 6/8. 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 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 stop11h 15m
Iberia
Wed 1/137:40 pm
LHR
- SAT
2 stops18h 42m
Iberia
Deal found 6/8![Iberia logo]()
$868
This Iberia deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/303:00 pm
SAT
- LHR
1 stop15h 00m
Iberia
Thu 1/146:15 am
LHR
- SAT
2 stops20h 34m
Iberia
Deal found 6/4![Iberia logo]()
$869
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:00 pm
SAT
- LHR
1 stop12h 15m
United Airlines
Fri 9/186:50 am
LHR
- SAT
2 stops15h 41m
United Airlines
Deal found 6/5![United Airlines logo]()
$872
This Delta deal was found by Cheapflights users on 6/8. 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 10/262:00 pm
SAT
- LHR
1 stop12h 05m
Delta
Tue 11/1011:45 am
LHR
- SAT
2 stops17h 35m
Delta
Deal found 6/8![Delta logo]()
$873
This FlightHub deal was found by Cheapflights users on 6/9. 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 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 6/9![Scandinavian Airlines logo]()
$875
This Expedia deal was found by Cheapflights users on 6/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:28 am
SAT
- LHR
2 stops21h 07m
Iberia
Wed 10/1411:30 am
LHR
- SAT
2 stops17h 25m
Iberia
Deal found 6/6![Iberia logo]()
$876
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 12/306:45 am
SAT
- LHR
2 stops18h 20m
Delta
Thu 1/148:40 am
LHR
- SAT
2 stops18h 52m
Delta
Deal found 6/8![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 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 June 9, 2026.
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:00 pm
SAT
- LHR
1 stop12h 15m
United Airlines
Fri 9/186:50 am
LHR
- SAT
2 stops15h 41m
United Airlines
Deal found 6/5![United Airlines logo]()
$872
This Delta deal was found by Cheapflights users on 6/8. 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 10/2712:15 pm
SAT
- LHR
1 stop18h 25m
Delta
Wed 11/46:30 am
LHR
- SAT
2 stops17h 14m
Delta
Deal found 6/8![Delta logo]()
$873
This Scandinavian Airlines deal was found by Cheapflights users on 6/8. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:10 pm
SAT
- LHR
3 stops23h 25m
Scandinavian Airlines
Mon 11/236:40 am
LHR
- SAT
2 stops22h 38m
Scandinavian Airlines
Deal found 6/8![Scandinavian Airlines logo]()
$884
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 9/162:31 pm
SAT
- LHR
2 stops16h 44m
Delta
Wed 9/238:40 am
LHR
- SAT
2 stops18h 34m
Delta
Deal found 6/8![Delta logo]()
$877
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:30 am
SAT
- LHR
1 stop18h 00m
United Airlines
Sat 12/196:35 am
LHR
- SAT
2 stops23h 02m
United Airlines
Deal found 6/7![United Airlines logo]()
$923
This Delta deal was found by Cheapflights users on 6/6. 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 8/1212:37 pm
SAT
- LHR
1 stop17h 28m
Delta
Wed 8/196:30 am
LHR
- SAT
2 stops16h 41m
Delta
Deal found 6/6![Delta logo]()
$933
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.
Thu 8/272:15 pm
SAT
- LHR
1 stop11h 30m
United Airlines
Wed 9/91:40 pm
LHR
- SAT
1 stop13h 36m
United Airlines
Deal found 6/4![United Airlines logo]()
$1,012
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.
Sat 8/225:45 pm
SAT
- LHR
1 stop30h 40m
Delta
Fri 9/119:20 am
LHR
- SAT
1 stop13h 49m
Delta
Deal found 6/4![Delta logo]()
$968
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/254:18 pm
SAT
- LHR
2 stops22h 22m
United Airlines
Fri 8/712:05 pm
LHR
- SAT
1 stop15h 08m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,060
Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated June 9, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 6/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/195:30 am
SAT
- LHR
2 stops19h 00m
Air Canada
Fri 8/72:10 pm
LHR
- SAT
2 stops31h 29m
Air Canada
Deal found 6/6![Air Canada logo]()
$1,050
This Justfly.com deal was found by Cheapflights users on 6/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/202:35 pm
SAT
- LHR
2 stops19h 25m
Scandinavian Airlines
Sun 8/2310:20 am
LHR
- SAT
2 stops19h 36m
Scandinavian Airlines
Deal found 6/8![Scandinavian Airlines logo]()
$1,051
This Air Canada deal was found by Cheapflights users on 6/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:30 am
SAT
- LHR
2 stops19h 00m
Air Canada
Thu 8/62:05 pm
LHR
- SAT
2 stops28h 07m
Air Canada
Deal found 6/6![Air Canada logo]()
$1,046
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 7/2210:38 am
SAT
- LHR
1 stop20h 37m
Delta
Tue 7/286:30 am
LHR
- SAT
2 stops16h 41m
Delta
Deal found 6/8![Delta logo]()
$1,034
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:43 am
SAT
- LHR
1 stop17h 52m
United Airlines
Wed 7/292:05 pm
LHR
- SAT
2 stops28h 24m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,042
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/224:18 pm
SAT
- LHR
1 stop13h 17m
United Airlines
Tue 7/282:05 pm
LHR
- SAT
2 stops28h 24m
United Airlines
Deal found 6/5![United Airlines logo]()
$1,043
This Air Canada deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:37 am
SAT
- LHR
3 stops18h 23m
Multiple Airlines
Tue 7/288:25 pm
LHR
- SAT
2 stops30h 48m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$1,054
This lol.travel deal was found by Cheapflights users on 6/7. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/271:44 pm
SAT
- LHR
1 stop17h 06m
Finnair
Wed 8/128:55 am
LHR
- SAT
1 stop15h 44m
Finnair
Deal found 6/7![Finnair logo]()
$910
This Air Canada deal was found by Cheapflights users on 6/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:37 am
SAT
- LHR
3 stops18h 23m
Air Canada
Wed 8/128:40 am
LHR
- SAT
2 stops18h 33m
Air Canada
Deal found 6/7![Air Canada logo]()
$973
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/275:57 pm
SAT
- LHR
1 stop11h 38m
United Airlines
Wed 8/127:45 am
LHR
- SAT
2 stops15h 58m
United Airlines
Deal found 6/7![United Airlines logo]()
$987
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 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 June 9, 2026.
This oojo deal was found by Cheapflights users on 6/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:20 pm
SAT
- LHR
1 stop12h 30m
British Airways
Deal found 6/6![British Airways logo]()
$328
This Delta deal was found by Cheapflights users on 6/6. 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.
Mon 9/72:43 pm
SAT
- LHR
2 stops15h 22m
Delta
Deal found 6/6![Delta logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:39 pm
SAT
- LHR
2 stops34h 16m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:39 pm
SAT
- LHR
2 stops34h 16m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$361
This oojo deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:26 pm
SAT
- LHR
1 stop11h 59m
British Airways
Deal found 6/4![British Airways logo]()
$377
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.
Thu 10/812:15 pm
SAT
- LHR
2 stops14h 35m
Delta
Deal found 6/4![Delta logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:39 pm
SAT
- LHR
2 stops34h 16m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:25 am
SAT
- LHR
3 stops41h 55m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$389
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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $779 (eDestinos) |
One-way from | $328 (oojo) |
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 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 9/8
1:00 pm-7:15 am
1 stop12h 15m
London Heathrow
Fri 9/18
6:50 am-4:31 pm
2 stops15h 41m
$872
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 10/27
12:15 pm-11:40 am
1 stop18h 25m
London Heathrow
Wed 11/4
6:30 am-5:44 pm
2 stops17h 14m
$873
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 9/16
2:31 pm-1:15 pm
2 stops16h 44m
London Heathrow
Wed 9/23
8:40 am-9:14 pm
2 stops18h 34m
$877
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 11/17
4:10 pm-9:35 pm
3 stops23h 25m
London Heathrow
Mon 11/23
6:40 am-11:18 pm
2 stops22h 38m
$884
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sun 11/29
7:30 am-7:30 am
1 stop18h 00m
London Heathrow
Sat 12/19
6:35 am-11:37 pm
2 stops23h 02m
$923
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 8/12
12:37 pm-12:05 pm
1 stop17h 28m
London Heathrow
Wed 8/19
6:30 am-5:11 pm
2 stops16h 41m
$933
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sat 8/22
5:45 pm-6:25 am
1 stop30h 40m
London Heathrow
Fri 9/11
9:20 am-5:09 pm
1 stop13h 49m
$968
Quickest round-trip
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Thu 8/27
2:15 pm-7:45 am
1 stop11h 30m
London Heathrow
Wed 9/9
1:40 pm-9:16 pm
1 stop13h 36m
$1,012
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sat 7/25
4:18 pm-8:40 pm
2 stops22h 22m
London Heathrow
Fri 8/7
12:05 pm-9:13 pm
1 stop15h 08m
$1,060
Cheapest one-way
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Mon 9/7
2:43 pm-12:05 pm
2 stops15h 22m
$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 $571). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of $1,283). 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 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.
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
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
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 9, 2026.
San Antonio and Heathrow flights
Browse other San Antonio and Heathrow flight options. Last updated on June 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 June 9, 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 9, 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% |