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$572+ Cheap flights from Heathrow (LHR) to San Antonio (SAT)

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
Jul 26 — Aug 21
Sun 7/26
Sun 8/2
1 adult, Economy
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Cheap flight deals from Heathrow to San Antonio

Cheapest flights from Heathrow to San Antonio
Explore the most affordable flight options available from Heathrow to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2026.

This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:30 am
LHR
-
SAT
2 stops16h 33m
Virgin Atlantic
Sat 10/32:00 pm
SAT
-
LHR
2 stops15h 20m
Virgin Atlantic
Deal found 6/23$656
This TravelUp deal was found by Cheapflights users on 6/23. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:40 am
LHR
-
SAT
2 stops22h 40m
Scandinavian Airlines
Sat 10/32:00 pm
SAT
-
LHR
2 stops20h 00m
Scandinavian Airlines
Deal found 6/23$753
This Scandinavian Airlines deal was found by Cheapflights users on 6/24. 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.
Wed 12/210:20 am
LHR
-
SAT
2 stops18h 58m
Scandinavian Airlines
Sun 12/64:10 pm
SAT
-
LHR
2 stops19h 30m
Scandinavian Airlines
Deal found 6/24$782
This Scandinavian Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:40 am
LHR
-
SAT
2 stops23h 30m
Scandinavian Airlines
Mon 9/281:55 pm
SAT
-
LHR
2 stops21h 45m
Scandinavian Airlines
Deal found 6/25$808
This FlightHub deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:00 pm
LHR
-
SAT
2 stops37h 10m
Scandinavian Airlines
Wed 10/2112:10 pm
SAT
-
LHR
2 stops23h 30m
Scandinavian Airlines
Deal found 6/26$891
This deal was found by Cheapflights users on 6/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3010:00 am
LHR
-
SAT
1 stop15h 22m
United Airlines
Fri 12/45:22 pm
SAT
-
LHR
1 stop12h 38m
United Airlines
Deal found 6/25$897
This Scandinavian Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:05 am
LHR
-
SAT
3 stops21h 22m
Scandinavian Airlines
Fri 12/412:15 pm
SAT
-
LHR
2 stops24h 15m
Scandinavian Airlines
Deal found 6/25$906
This Expedia deal was found by Cheapflights users on 6/22. 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 10/196:00 am
LHR
-
SAT
2 stops21h 13m
Multiple Airlines
Wed 10/282:10 pm
SAT
-
LHR
1 stop11h 15m
Multiple Airlines
Deal found 6/22$931

Find flight deals from Heathrow to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to San Antonio (SAT). 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 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$656
(Virgin Atlantic)

One-way from

$572
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,457
Provider with most accurate pricing for London Heathrow-San Antonio flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-San Antonio flights.
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From London Heathrow to San Antonio
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One-way flight from London Heathrow to San Antonio
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High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in June 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to San Antonio 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 26, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 9/19

6:30 am-5:03 pm

2 stops16h 33m

San Antonio

Sat 10/3

2:00 pm-11:20 am

2 stops15h 20m

$656

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 12/2

10:20 am-11:18 pm

2 stops18h 58m

San Antonio

Sun 12/6

4:10 pm-5:40 pm

2 stops19h 30m

$782

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 11/30

7:05 am-10:27 pm

3 stops21h 22m

San Antonio

Fri 12/4

12:15 pm-6:30 pm

2 stops24h 15m

$906

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 9/14

7:05 am-12:13 am

3 stops23h 08m

San Antonio

Sat 9/19

2:00 pm-5:40 pm

2 stops21h 40m

$1,041

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 9/15

10:20 am-12:13 am

2 stops19h 53m

San Antonio

Sun 9/20

1:55 pm-5:40 pm

2 stops21h 45m

$1,050

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 10/3

6:40 am-11:20 pm

2 stops22h 40m

San Antonio

Wed 10/21

12:10 pm-6:50 pm

3 stops24h 40m

$1,079

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 10/19

7:05 am-11:18 pm

3 stops22h 13m

San Antonio

Wed 10/28

2:10 pm-5:40 pm

2 stops22h 30m

$1,118
Cheapest one-way

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 9/14

6:00 am-9:13 pm

2 stops21h 13m

$613

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 10/16

6:00 am-9:13 pm

2 stops21h 13m

$653

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 10/12

12:05 pm-9:13 pm

1 stop15h 08m

$669

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

Showing 1-10 of 19 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on London Heathrow Airport-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-San Antonio 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 London Heathrow Airport-San Antonio 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 Heathrow to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Heathrow with our price prediction graph.
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 London Heathrow Airport to San Antonio

How far ahead should I book a flight from London Heathrow Airport to San Antonio?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to San Antonio, you should look to book at least 47 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 London Heathrow Airport to San Antonio?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $988). Flying from London Heathrow Airport to San Antonio in December is currently the most expensive (average of $1,620). 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 London Heathrow Airport to San Antonio?

Related info for your journey

Find useful and relevant information for your journey from Heathrow to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Antonio from London Heathrow?

    San Antonio (SAT) is the airport you will fly into if you book a flight from London Heathrow to San Antonio. You should not have trouble finding flights to San Antonio from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the San Antonio airport from London Heathrow. It is only a 7.6 mi journey from San Antonio (SAT) to San Antonio’s city center.

  • How long is the flight from London Heathrow Airport to San Antonio?

    Departing from London Heathrow Airport to San Antonio will take you 16h 33m. There are 4967 mi between London Heathrow Airport and San Antonio. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Heathrow to San Antonio that include hotel bookings?

    Yes. In addition to deals on Heathrow to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to San Antonio.

  • Can I find deals for business class flights from Heathrow to San Antonio?

    Yes. Cheapflights offers flight deals from Heathrow to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to San Antonio?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $988). Flying from London Heathrow Airport to San Antonio in December is currently the most expensive (average of $1,620). 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.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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