$287+ 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 16 — Jun 231
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Antonio to Heathrow
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Best
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One-way
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 17, 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 17, 2026.
This Iberia deal was found by Cheapflights users on 5/16. 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
Thu 1/147:30 am
LHR
- SAT
2 stops19h 19m
Iberia
Deal found 5/16![Iberia logo]()
$869
This Expedia deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:45 pm
SAT
- LHR
1 stop16h 05m
Iberia
Fri 9/1811:30 am
LHR
- SAT
2 stops17h 25m
Iberia
Deal found 5/14![Iberia logo]()
$872
This Delta deal was found by Cheapflights users on 5/16. 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 12/306:30 am
SAT
- LHR
1 stop18h 35m
Delta
Wed 1/138:40 am
LHR
- SAT
2 stops18h 52m
Delta
Deal found 5/16![Delta logo]()
$873
This Delta deal was found by Cheapflights users on 5/14. 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 10/272:10 pm
SAT
- LHR
1 stop12h 40m
Delta
Wed 11/410:00 am
LHR
- SAT
2 stops19h 20m
Delta
Deal found 5/14![Delta logo]()
$874
This Delta deal was found by Cheapflights users on 5/13. 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 8/198:40 am
LHR
- SAT
2 stops18h 49m
Delta
Deal found 5/13![Delta logo]()
$875
This Air Canada deal was found by Cheapflights users on 5/14. 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 9/912:07 pm
SAT
- LHR
2 stops15h 53m
Multiple Airlines
Fri 9/186:00 am
LHR
- SAT
2 stops21h 13m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 5/16. 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 11/184:20 pm
SAT
- LHR
1 stop11h 55m
United Airlines
Wed 11/251:00 pm
LHR
- SAT
2 stops32h 38m
United Airlines
Deal found 5/16![United Airlines logo]()
$882
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 17, 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 17, 2026.
This Delta deal was found by Cheapflights users on 5/14. 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 9/2910:45 am
SAT
- LHR
1 stop14h 30m
Delta
Tue 10/139:55 am
LHR
- SAT
2 stops16h 27m
Delta
Deal found 5/14![Delta logo]()
$874
This United Airlines deal was found by Cheapflights users on 5/16. 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 9/239:07 am
SAT
- LHR
2 stops15h 48m
United Airlines
Sun 9/275:40 pm
LHR
- SAT
1 stop33h 33m
United Airlines
Deal found 5/16![United Airlines logo]()
$950
This Delta deal was found by Cheapflights users on 5/14. 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 10/272:10 pm
SAT
- LHR
1 stop12h 40m
Delta
Wed 11/410:00 am
LHR
- SAT
2 stops19h 20m
Delta
Deal found 5/14![Delta logo]()
$874
This United Airlines deal was found by Cheapflights users on 5/16. 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 8/125:59 pm
SAT
- LHR
1 stop11h 36m
United Airlines
Wed 8/1912:05 pm
LHR
- SAT
1 stop15h 08m
United Airlines
Deal found 5/16![United Airlines logo]()
$960
This Delta deal was found by Cheapflights users on 5/16. 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 10/26:45 am
SAT
- LHR
1 stop18h 30m
Delta
Wed 10/148:40 am
LHR
- SAT
2 stops18h 52m
Delta
Deal found 5/16![Delta logo]()
$923
This United Airlines deal was found by Cheapflights users on 5/13. 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 8/21:39 pm
SAT
- LHR
1 stop16h 56m
United Airlines
Wed 8/2612:05 pm
LHR
- SAT
1 stop15h 08m
United Airlines
Deal found 5/13![United Airlines logo]()
$962
This Delta deal was found by Cheapflights users on 5/14. 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 10/612:15 pm
SAT
- LHR
1 stop13h 00m
Delta
Mon 10/126:30 am
LHR
- SAT
2 stops16h 48m
Delta
Deal found 5/14![Delta logo]()
$924
This Delta deal was found by Cheapflights users on 5/12. 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 9/912:15 pm
SAT
- LHR
2 stops16h 05m
Delta
Sun 9/206:30 am
LHR
- SAT
2 stops16h 46m
Delta
Deal found 5/12![Delta logo]()
$930
This Delta deal was found by Cheapflights users on 5/16. 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 8/126:23 am
SAT
- LHR
2 stops18h 47m
Delta
Wed 8/196:30 am
LHR
- SAT
2 stops17h 40m
Delta
Deal found 5/16![Delta logo]()
$938
Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated May 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated May 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/14. 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 5/158:48 am
SAT
- LHR
2 stops16h 07m
United Airlines
Wed 5/209:00 am
LHR
- SAT
2 stops20h 59m
United Airlines
Deal found 5/14![United Airlines logo]()
$1,134
This Delta deal was found by Cheapflights users on 5/14. 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 5/1510:52 am
SAT
- LHR
1 stop13h 33m
Delta
Tue 5/199:55 am
LHR
- SAT
2 stops18h 32m
Delta
Deal found 5/14![Delta logo]()
$1,145
This Expedia deal was found by Cheapflights users on 5/15. 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.
Sun 5/176:21 pm
SAT
- LHR
1 stop12h 54m
KLM
Wed 5/273:15 pm
LHR
- SAT
1 stop15h 29m
KLM
Deal found 5/15![KLM logo]()
$1,114
This United Airlines deal was found by Cheapflights users on 5/15. 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 5/172:25 pm
SAT
- LHR
1 stop11h 20m
United Airlines
Wed 5/277:45 am
LHR
- SAT
2 stops15h 59m
United Airlines
Deal found 5/15![United Airlines logo]()
$1,126
This The Travel House deal was found by Cheapflights users on 5/15. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/172:00 pm
SAT
- LHR
2 stops38h 00m
Air Canada
Wed 5/279:30 am
LHR
- SAT
2 stops19h 24m
Air Canada
Deal found 5/15![Air Canada logo]()
$1,132
This United Airlines deal was found by Cheapflights users on 5/14. 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 5/1911:45 am
SAT
- LHR
1 stop14h 10m
United Airlines
Tue 5/269:30 am
LHR
- SAT
2 stops36h 33m
United Airlines
Deal found 5/14![United Airlines logo]()
$1,127
This Air Canada deal was found by Cheapflights users on 5/14. 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 5/198:48 am
SAT
- LHR
2 stops19h 12m
Air Canada
Tue 5/262:05 pm
LHR
- SAT
2 stops31h 58m
Air Canada
Deal found 5/14![Air Canada logo]()
$1,131
This Air Canada deal was found by Cheapflights users on 5/13. 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 5/209:50 am
SAT
- LHR
3 stops17h 45m
Air Canada
Wed 6/38:40 am
LHR
- SAT
2 stops18h 38m
Air Canada
Deal found 5/13![Air Canada logo]()
$1,130
This Delta deal was found by Cheapflights users on 5/14. 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 5/205:20 am
SAT
- LHR
1 stop19h 50m
Delta
Wed 6/36:30 am
LHR
- SAT
2 stops17h 53m
Delta
Deal found 5/14![Delta logo]()
$1,142
This United Airlines deal was found by Cheapflights users on 5/13. 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 5/209:50 am
SAT
- LHR
1 stop15h 55m
United Airlines
Wed 6/312:05 pm
LHR
- SAT
1 stop15h 13m
United Airlines
Deal found 5/13![United Airlines logo]()
$1,146
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 17, 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 17, 2026.
This eDestinos deal was found by Cheapflights users on 5/17. 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 9/12:10 pm
SAT
- LHR
2 stops16h 25m
Virgin Atlantic
Deal found 5/17![Virgin Atlantic logo]()
$287
This eDestinos deal was found by Cheapflights users on 5/12. 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.
Mon 8/171:42 pm
SAT
- LHR
1 stop13h 18m
Iberia
Deal found 5/12![Iberia logo]()
$325
This Mytrip deal was found by Cheapflights users on 5/12. 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.
Tue 8/181:00 pm
SAT
- LHR
2 stops26h 00m
Air Canada
Deal found 5/12![Air Canada logo]()
$328
This Mytrip deal was found by Cheapflights users on 5/12. 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 8/176:00 am
SAT
- LHR
2 stops22h 00m
Air Canada
Deal found 5/12![Air Canada logo]()
$331
This Delta deal was found by Cheapflights users on 5/12. 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 8/2611:29 am
SAT
- LHR
2 stops16h 51m
Delta
Deal found 5/12![Delta logo]()
$332
This Air Canada deal was found by Cheapflights users on 5/12. 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 8/199:30 am
SAT
- LHR
3 stops18h 30m
Air Canada
Deal found 5/12![Air Canada logo]()
$340
This Air Canada deal was found by Cheapflights users on 5/12. 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 8/269:30 am
SAT
- LHR
3 stops18h 30m
Air Canada
Deal found 5/12![Air Canada logo]()
$344
This United Airlines deal was found by Cheapflights users on 5/12. 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 8/279:07 am
SAT
- LHR
2 stops15h 48m
United Airlines
Deal found 5/12![United Airlines logo]()
$382
This Air Canada deal was found by Cheapflights users on 5/13. 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.
Fri 9/259:47 am
SAT
- LHR
3 stops18h 13m
Air Canada
Deal found 5/13![Air Canada logo]()
$394
This Justfly.com deal was found by Cheapflights users on 5/17. 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.
Sun 7/196:00 am
SAT
- LHR
2 stops24h 40m
Aer Lingus
Deal found 5/17![Aer Lingus logo]()
$429
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 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $872 (Expedia) |
One-way from | $287 (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 17, 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 9/29
10:45 am-7:15 am
1 stop14h 30m
London Heathrow
Tue 10/13
9:55 am-8:22 pm
2 stops16h 27m
$874
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 10/27
2:10 pm-7:50 am
1 stop12h 40m
London Heathrow
Wed 11/4
10:00 am-11:20 pm
2 stops19h 20m
$874
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Fri 10/2
6:45 am-7:15 am
1 stop18h 30m
London Heathrow
Wed 10/14
8:40 am-9:32 pm
2 stops18h 52m
$923
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 10/6
12:15 pm-7:15 am
1 stop13h 00m
London Heathrow
Mon 10/12
6:30 am-5:18 pm
2 stops16h 48m
$924
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 9/9
12:15 pm-10:20 am
2 stops16h 05m
London Heathrow
Sun 9/20
6:30 am-5:16 pm
2 stops16h 46m
$930
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 8/12
6:23 am-7:10 am
2 stops18h 47m
London Heathrow
Wed 8/19
6:30 am-6:10 pm
2 stops17h 40m
$938
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 9/23
9:07 am-6:55 am
2 stops15h 48m
London Heathrow
Sun 9/27
5:40 pm-9:13 pm
1 stop33h 33m
$950
Quickest round-trip
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Wed 8/12
5:59 pm-11:35 am
1 stop11h 36m
London Heathrow
Wed 8/19
12:05 pm-9:13 pm
1 stop15h 08m
$960
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Sun 8/2
1:39 pm-12:35 pm
1 stop16h 56m
London Heathrow
Wed 8/26
12:05 pm-9:13 pm
1 stop15h 08m
$962
Cheapest one-way
San AntonioLondon
SAT - LHR
SATLHR
San Antonio
Tue 8/18
6:15 pm-12:10 pm
1 stop11h 55m
$325
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 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 17, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andVirgin Atlantic 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
Overall
7.9
Entertainment
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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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 17, 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$939 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$556 | Average$842 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$600 | Average$780 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$611 | Average$1,067 | FlexibilityNo cancel fee | On-time77% |