$288+ Cheap flights from San Antonio (SAT) to Heathrow (LHR)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LHR
Nov 13 — Nov 201
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Last-minute
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 October 14, 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 October 14, 2026.
This Expedia deal was found by Cheapflights users on 10/11. 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 11/2511:45 am -
1 stop13h 05m
Wed 12/28:25 pm -
2 stops29h 34m
Deal found 10/11![Virgin Atlantic logo]()
$894
This Expedia deal was found by Cheapflights users on 10/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:32 pm -
1 stop13h 08m
Tue 12/811:45 am -
2 stops18h 50m
Deal found 10/13![KLM logo]()
$902
This Flightnetwork deal was found by Cheapflights users on 10/13. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:48 pm -
2 stops32h 22m
Tue 12/87:40 am -
2 stops18h 54m
Deal found 10/13![Multiple Airlines logo]()
$905
This Iberia deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:22 am -
1 stop16h 38m
Mon 11/237:40 pm -
2 stops18h 54m
Deal found 10/10![Iberia logo]()
$908
This Iberia deal was found by Cheapflights users on 10/10. 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 12/302:45 pm -
1 stop13h 40m
Thu 1/147:30 am -
2 stops19h 27m
Deal found 10/10![Iberia logo]()
$910
This Delta deal was found by Cheapflights users on 10/14. 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 11/1112:57 pm -
1 stop14h 28m
Wed 11/1810:00 am -
2 stops18h 54m
Deal found 10/14![Delta logo]()
$911
This Delta deal was found by Cheapflights users on 10/14. 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 12/301:00 pm -
1 stop11h 25m
Thu 1/1411:45 am -
2 stops17h 35m
Deal found 10/14![Delta logo]()
$913
This CheapOair deal was found by Cheapflights users on 10/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:56 am -
2 stops16h 14m
Tue 11/177:40 am -
2 stops19h 13m
Deal found 10/13![Multiple Airlines logo]()
$915
This Air Canada deal was found by Cheapflights users on 10/13. 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.
Mon 12/76:35 am -
2 stops17h 55m
Wed 12/233:00 pm -
2 stops31h 54m
Deal found 10/13![Air Canada logo]()
$925
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 October 14, 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 October 14, 2026.
This Delta deal was found by Cheapflights users on 10/12. 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 11/117:40 am -
1 stop16h 45m
Wed 11/186:30 am -
2 stops17h 10m
Deal found 10/12![Delta logo]()
$911
This United Airlines deal was found by Cheapflights users on 10/10. 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 3/67:00 pm -
1 stop33h 15m
Sat 3/134:20 pm -
2 stops21h 28m
Deal found 10/10![United Airlines logo]()
$972
This Finnair deal was found by Cheapflights users on 10/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:00 pm -
1 stop12h 15m
Tue 11/108:20 am -
1 stop17h 02m
Deal found 10/10![Finnair logo]()
$990
This Delta deal was found by Cheapflights users on 10/13. 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.
Tue 10/2710:48 am -
1 stop17h 12m
Wed 11/46:30 am -
2 stops20h 40m
Deal found 10/13![Delta logo]()
$961
This United Airlines deal was found by Cheapflights users on 10/13. 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 12/98:45 am -
2 stops15h 55m
Thu 12/179:00 am -
2 stops19h 59m
Deal found 10/13![United Airlines logo]()
$992
This Delta deal was found by Cheapflights users on 10/14. 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.
Mon 10/267:50 am -
2 stops18h 55m
Tue 11/108:40 am -
2 stops18h 46m
Deal found 10/14![Delta logo]()
$966
This United Airlines deal was found by Cheapflights users on 10/10. 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 10/262:20 pm -
2 stops15h 30m
Mon 11/25:30 pm -
2 stops33h 23m
Deal found 10/10![United Airlines logo]()
$996
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Sat 12/128:45 am -
2 stops15h 55m
Tue 1/51:00 pm -
2 stops29h 06m
Deal found 10/12![United Airlines logo]()
$1,190
This Delta deal was found by Cheapflights users on 10/12. 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.
Sat 12/126:16 am -
1 stop20h 44m
Tue 1/54:35 pm -
1 stop24h 21m
Deal found 10/12![Delta logo]()
$1,210
This United Airlines deal was found by Cheapflights users on 10/11. 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 12/711:47 am -
2 stops17h 03m
Wed 12/912:05 pm -
1 stop13h 15m
Deal found 10/11![United Airlines logo]()
$1,212
Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated October 14, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated October 14, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 10/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:56 am -
2 stops16h 14m
Tue 11/177:40 am -
2 stops19h 13m
Deal found 10/13![Multiple Airlines logo]()
$915
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Tue 11/101:52 pm -
1 stop13h 48m
Tue 11/1710:00 am -
1 stop15h 10m
Deal found 10/13![United Airlines logo]()
$941
This Delta deal was found by Cheapflights users on 10/14. 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 11/1112:57 pm -
1 stop14h 28m
Wed 11/1810:00 am -
2 stops18h 54m
Deal found 10/14![Delta logo]()
$911
This Iberia deal was found by Cheapflights users on 10/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:15 am -
1 stop21h 10m
Wed 11/181:50 pm -
1 stop13h 18m
Deal found 10/12![Iberia logo]()
$940
This Iberia deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:22 am -
1 stop16h 38m
Mon 11/237:40 pm -
2 stops18h 54m
Deal found 10/10![Iberia logo]()
$908
This Expedia deal was found by Cheapflights users on 10/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:32 pm -
1 stop13h 08m
Tue 12/811:45 am -
2 stops18h 50m
Deal found 10/13![KLM logo]()
$902
This Flightnetwork deal was found by Cheapflights users on 10/13. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:48 pm -
2 stops32h 22m
Tue 12/87:40 am -
2 stops18h 54m
Deal found 10/13![Multiple Airlines logo]()
$905
This Expedia deal was found by Cheapflights users on 10/11. 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 11/2511:45 am -
1 stop13h 05m
Wed 12/28:25 pm -
2 stops29h 34m
Deal found 10/11![Virgin Atlantic logo]()
$894
This Expedia deal was found by Cheapflights users on 10/11. 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 11/2511:04 am -
2 stops17h 26m
Wed 12/27:25 pm -
2 stops33h 32m
Deal found 10/11![Air France logo]()
$928
This United Airlines deal was found by Cheapflights users on 10/11. 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 11/258:56 am -
2 stops19h 54m
Wed 12/211:05 am -
2 stops55h 15m
Deal found 10/11![United Airlines logo]()
$929
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 October 14, 2026.
Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
This eDestinos deal was found by Cheapflights users on 10/11. 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 1/122:10 pm -
1 stop15h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Virgin Atlantic logo]()
$288
This KLM deal was found by Cheapflights users on 10/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1210:45 am -
1 stop15h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![KLM logo]()
$328
This Mytrip deal was found by Cheapflights users on 10/11. 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 1/129:00 am -
2 stops16h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Air Canada logo]()
$331
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Tue 2/238:55 am -
2 stops19h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![United Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 10/13. 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.
Sat 2/274:25 pm -
1 stop32h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Delta logo]()
$343
This Air Canada deal was found by Cheapflights users on 10/11. 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 2/247:30 am -
3 stops17h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Air Canada logo]()
$344
This Delta deal was found by Cheapflights users on 10/13. 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.
Thu 2/2510:45 am -
2 stops17h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Delta logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 10/11. 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.
Fri 2/2611:56 am -
3 stops42h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 2/258:22 pm -
3 stops34h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Multiple Airlines logo]()
$421
This Cheapflightsfares deal was found by Cheapflights users on 10/10. 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 11/27:15 am -
2 stops18h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Aer Lingus logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:28 pm -
3 stops41h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$431
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 October 14, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $768 (FlightHub) |
One-way from | $288 (eDestinos) |
Popular in | June |
Cheapest in | March |
Average price | $964 |
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 7,457,451 searches. Data last updated October 14, 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 San Antonio - LHR London Heathrow
SATLHR
San Antonio
Sun 4/4
8:00 am-6:20 am
2 stops16h 20m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Tue 3/2
5:30 am-11:15 am
3 stops23h 45m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
Quickest round-trip
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Mon 2/22
2:10 pm-9:00 am
1 stop12h 50m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Sun 4/4
5:20 am-9:40 am
1 stop22h 20m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Wed 2/24
10:45 am-8:05 am
2 stops15h 20m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Mon 2/1
6:12 am-6:20 am
1 stop18h 08m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Mon 3/1
6:45 am-6:20 am
2 stops17h 35m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Mon 2/22
4:15 pm-8:35 pm
2 stops22h 20m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Tue 2/23
7:30 am-10:50 am
1 stop21h 20m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Wed 11/11
7:40 am-6:25 am
1 stop16h 45m
London Heathrow
Wed 11/18
6:30 am-5:40 pm
2 stops17h 10m
$911
Showing 1-10 of 19 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 October.
| 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on San Antonio-London Heathrow Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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 32 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, March is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of $874). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of $1,282). 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?
Airfare is below average for this route at the moment.
San Antonio to London Heathrow Airport flights typically cost between $856 and $1,249 in January.The cheapest round-trip price found within the last 5 days was $768 on Multiple Airlines (Jan 12-Jan 15).
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 October 14, 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
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
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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 7,457,451 searches. Data last updated October 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$596 | Average$801 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$600 | Average$777 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$658 | Average$1,140 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$723 | Average$988 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$892 | Average$1,255 | FlexibilityNo cancel fee | On-time71% |