$332+ 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
May 2 — May 91
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 April 2, 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 April 2, 2026.
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Sun 10/185:00 pm
SAT
- LHR
1 stop33h 30m
United Airlines
Wed 10/217:30 am
LHR
- SAT
2 stops19h 37m
United Airlines
Deal found 3/31![United Airlines logo]()
$760
This KAYAK deal was found by Cheapflights users on 3/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:15 pm
SAT
- LHR
2 stops39h 05m
Scandinavian Airlines
Mon 9/76:40 am
LHR
- SAT
2 stops22h 38m
Scandinavian Airlines
Deal found 3/31![Scandinavian Airlines logo]()
$782
This FlightHub deal was found by Cheapflights users on 3/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/274:10 pm
SAT
- LHR
2 stops21h 20m
Scandinavian Airlines
Wed 11/46:40 am
LHR
- SAT
2 stops22h 38m
Scandinavian Airlines
Deal found 3/31![Scandinavian Airlines logo]()
$822
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/212:10 pm
SAT
- LHR
2 stops21h 50m
Scandinavian Airlines
Wed 10/1410:20 am
LHR
- SAT
2 stops18h 58m
Scandinavian Airlines
Deal found 3/30![Scandinavian Airlines logo]()
$824
This Scandinavian Airlines deal was found by Cheapflights users on 3/31. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:10 pm
SAT
- LHR
2 stops23h 30m
Scandinavian Airlines
Wed 9/96:40 am
LHR
- SAT
2 stops22h 38m
Scandinavian Airlines
Deal found 3/31![Scandinavian Airlines logo]()
$828
This Scandinavian Airlines deal was found by Cheapflights users on 3/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:10 pm
SAT
- LHR
3 stops24h 40m
Scandinavian Airlines
Wed 9/96:40 am
LHR
- SAT
2 stops22h 38m
Scandinavian Airlines
Deal found 3/30![Scandinavian Airlines logo]()
$833
This Scandinavian Airlines deal was found by Cheapflights users on 3/31. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:10 pm
SAT
- LHR
2 stops27h 30m
Scandinavian Airlines
Mon 9/216:40 am
LHR
- SAT
3 stops21h 35m
Scandinavian Airlines
Deal found 3/31![Scandinavian Airlines logo]()
$835
This Cheapflightsfares deal was found by Cheapflights users on 4/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/302:15 pm
SAT
- LHR
2 stops14h 30m
Lufthansa
Thu 1/1411:10 am
LHR
- SAT
2 stops17h 58m
Lufthansa
Deal found 4/1![Lufthansa logo]()
$837
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 April 2, 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 April 2, 2026.
This United Airlines deal was found by Cheapflights users on 3/29. 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 5/65:30 am
SAT
- LHR
1 stop24h 05m
United Airlines
Tue 5/125:40 pm
LHR
- SAT
1 stop33h 38m
United Airlines
Deal found 3/29![United Airlines logo]()
$946
This Delta deal was found by Cheapflights users on 3/31. 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.
Fri 9/45:50 pm
SAT
- LHR
1 stop13h 15m
Delta
Mon 9/79:55 am
LHR
- SAT
2 stops18h 20m
Delta
Deal found 3/31![Delta logo]()
$970
This Scandinavian Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:55 pm
SAT
- LHR
3 stops20h 30m
Scandinavian Airlines
Thu 4/306:40 am
LHR
- SAT
2 stops21h 45m
Scandinavian Airlines
Deal found 4/1![Scandinavian Airlines logo]()
$1,001
This Delta deal was found by Cheapflights users on 3/29. 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 5/76:10 pm
SAT
- LHR
1 stop12h 55m
Delta
Tue 5/128:40 am
LHR
- SAT
2 stops18h 52m
Delta
Deal found 3/29![Delta logo]()
$981
This United Airlines deal was found by Cheapflights users on 3/28. 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 8/141:45 pm
SAT
- LHR
2 stops39h 25m
United Airlines
Tue 8/185:40 pm
LHR
- SAT
1 stop33h 33m
United Airlines
Deal found 3/28![United Airlines logo]()
$1,000
This Scandinavian Airlines deal was found by Cheapflights users on 3/28. 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 8/142:10 pm
SAT
- LHR
2 stops19h 50m
Scandinavian Airlines
Tue 8/187:05 am
LHR
- SAT
3 stops22h 13m
Scandinavian Airlines
Deal found 3/28![Scandinavian Airlines logo]()
$1,003
This Delta deal was found by Cheapflights users on 3/28. 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 5/14:44 pm
SAT
- LHR
2 stops15h 01m
Delta
Tue 5/56:30 am
LHR
- SAT
2 stops17h 39m
Delta
Deal found 3/28![Delta logo]()
$986
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sun 4/196:02 pm
SAT
- LHR
1 stop31h 43m
United Airlines
Thu 4/305:40 pm
LHR
- SAT
1 stop33h 38m
United Airlines
Deal found 3/30![United Airlines logo]()
$1,040
This Delta deal was found by Cheapflights users on 3/31. 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.
Sun 4/1912:26 pm
SAT
- LHR
1 stop12h 49m
Delta
Thu 4/306:30 am
LHR
- SAT
2 stops17h 08m
Delta
Deal found 3/31![Delta logo]()
$1,024
This United Airlines deal was found by Cheapflights users on 3/29. 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 5/1511:45 am
SAT
- LHR
1 stop14h 10m
United Airlines
Fri 5/229:30 am
LHR
- SAT
2 stops43h 25m
United Airlines
Deal found 3/29![United Airlines logo]()
$1,042
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Thu 5/1412:09 pm
SAT
- LHR
1 stop16h 31m
United Airlines
Fri 5/228:30 am
LHR
- SAT
1 stop18h 48m
United Airlines
Deal found 4/2![United Airlines logo]()
$1,058
This Delta deal was found by Cheapflights users on 4/1. 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.
Mon 5/185:25 am
SAT
- LHR
1 stop19h 00m
Delta
Sun 5/248:40 am
LHR
- SAT
2 stops19h 47m
Delta
Deal found 4/1![Delta logo]()
$1,106
Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated April 2, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:46 am
SAT
- LHR
2 stops16h 54m
Lufthansa
Tue 5/56:30 am
LHR
- SAT
2 stops22h 24m
Lufthansa
Deal found 3/31![Lufthansa logo]()
$903
This Delta deal was found by Cheapflights users on 4/1. 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.
Sun 5/38:00 am
SAT
- LHR
2 stops17h 10m
Delta
Tue 5/196:30 am
LHR
- SAT
2 stops16h 50m
Delta
Deal found 4/1![Delta logo]()
$934
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:20 pm
SAT
- LHR
2 stops18h 30m
Lufthansa
Tue 5/1210:50 am
LHR
- SAT
2 stops18h 04m
Lufthansa
Deal found 3/30![Lufthansa logo]()
$884
This Delta deal was found by Cheapflights users on 3/31. 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.
Wed 5/62:35 pm
SAT
- LHR
1 stop12h 40m
Delta
Tue 5/128:40 am
LHR
- SAT
2 stops18h 52m
Delta
Deal found 3/31![Delta logo]()
$930
This Expedia deal was found by Cheapflights users on 3/29. 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 5/125:45 pm
SAT
- LHR
1 stop13h 05m
Iberia
Tue 5/197:50 am
LHR
- SAT
2 stops21h 02m
Iberia
Deal found 3/29![Iberia logo]()
$929
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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 5/1211:45 am
SAT
- LHR
2 stops18h 55m
Lufthansa
Tue 5/1910:50 am
LHR
- SAT
2 stops18h 04m
Lufthansa
Deal found 3/28![Lufthansa logo]()
$932
This Booking.com deal was found by Cheapflights users on 3/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:00 pm
SAT
- LHR
2 stops14h 00m
Multiple Airlines
Tue 5/1910:50 am
LHR
- SAT
2 stops18h 04m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$935
This Delta deal was found by Cheapflights users on 3/31. 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.
Tue 5/121:33 pm
SAT
- LHR
1 stop13h 17m
Delta
Thu 8/2011:30 am
LHR
- SAT
2 stops16h 45m
Delta
Deal found 3/31![Delta logo]()
$937
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/132:27 pm
SAT
- LHR
2 stops15h 38m
Delta
Wed 8/266:30 am
LHR
- SAT
2 stops16h 46m
Delta
Deal found 3/30![Delta logo]()
$936
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 April 2, 2026.
Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This Delta deal was found by Cheapflights users on 3/31. 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.
Tue 9/110:45 am
SAT
- LHR
2 stops16h 05m
Delta
Deal found 3/31![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Thu 8/278:53 am
SAT
- LHR
2 stops16h 02m
United Airlines
Deal found 3/30![United Airlines logo]()
$382
This FlightHub deal was found by Cheapflights users on 3/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:26 am
SAT
- LHR
2 stops25h 04m
Aer Lingus
Deal found 3/31![Aer Lingus logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:00 am
SAT
- LHR
3 stops42h 25m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$448
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/71:19 pm
SAT
- LHR
2 stops18h 11m
Aer Lingus
Deal found 4/1![Aer Lingus logo]()
$502
This Justfly.com deal was found by Cheapflights users on 3/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:19 pm
SAT
- LHR
2 stops18h 36m
Aer Lingus
Deal found 3/31![Aer Lingus logo]()
$525
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:55 am
SAT
- LHR
3 stops26h 55m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/205:25 am
SAT
- LHR
3 stops26h 05m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$545
This Expedia deal was found by Cheapflights users on 3/30. 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.
Mon 4/2010:42 am
SAT
- LHR
1 stop14h 33m
Virgin Atlantic
Deal found 3/30![Virgin Atlantic logo]()
$556
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:02 pm
SAT
- LHR
1 stop15h 53m
United Airlines
Deal found 4/1![United Airlines logo]()
$571
This Air Canada deal was found by Cheapflights users on 3/31. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:40 am
SAT
- LHR
3 stops18h 20m
Air Canada
Deal found 3/31![Air Canada logo]()
$583
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 April 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $782 (KAYAK) |
One-way from | $332 (Delta) |
Popular in | June |
Cheapest in | October |
Average price | $979 |
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 April 2, 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
Wed 5/6
5:30 am-11:35 am
1 stop24h 05m
London Heathrow
Tue 5/12
5:40 pm-9:18 pm
1 stop33h 38m
$946
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 9/4
5:50 pm-1:05 pm
1 stop13h 15m
London Heathrow
Mon 9/7
9:55 am-10:15 pm
2 stops18h 20m
$970
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Thu 5/7
6:10 pm-1:05 pm
1 stop12h 55m
London Heathrow
Tue 5/12
8:40 am-9:32 pm
2 stops18h 52m
$981
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 5/1
4:44 pm-1:45 pm
2 stops15h 01m
London Heathrow
Tue 5/5
6:30 am-6:09 pm
2 stops17h 39m
$986
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 8/14
1:45 pm-11:10 am
2 stops39h 25m
London Heathrow
Tue 8/18
5:40 pm-9:13 pm
1 stop33h 33m
$1,000
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sun 4/19
1:55 pm-4:25 pm
3 stops20h 30m
London Heathrow
Thu 4/30
6:40 am-10:25 pm
2 stops21h 45m
$1,001
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 8/14
2:10 pm-4:00 pm
2 stops19h 50m
London Heathrow
Tue 8/18
7:05 am-11:18 pm
3 stops22h 13m
$1,003
Quickest round-trip
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sun 4/19
12:26 pm-7:15 am
1 stop12h 49m
London Heathrow
Thu 4/30
6:30 am-5:38 pm
2 stops17h 08m
$1,024
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sun 4/19
6:02 pm-7:45 am
1 stop31h 43m
London Heathrow
Thu 4/30
5:40 pm-9:18 pm
1 stop33h 38m
$1,040
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 5/15
11:45 am-7:55 am
1 stop14h 10m
London Heathrow
Fri 5/22
9:30 am-10:55 pm
2 stops43h 25m
$1,042
Showing 1-10 of 21 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*2 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?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Heathrow. Price data was last updated on April 2, 2026.
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 29 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, September is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of $526). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of $834). 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 April 2, 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.
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton
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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 April 2, 2026.
San Antonio and Heathrow flights
Browse other San Antonio and Heathrow flight options. Last updated on April 2, 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 April 2, 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 April 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$530 | Average$678 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$530 | Average$892 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$531 | Average$902 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$563 | Average$839 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$600 | Average$780 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$672 | Average$999 | FlexibilityNo cancel fee | On-time77% |