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$593+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
Jun 8 — Jun 151
Mon 6/8
Mon 6/15
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 May 9, 2026.

This Scandinavian Airlines deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:20 am
LHR
-
SAT
2 stops19h 28m
Scandinavian Airlines
Thu 6/112:40 pm
SAT
-
LHR
2 stops19h 20m
Scandinavian Airlines
Deal found 5/6$992
This Scandinavian Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:30 pm
LHR
-
SAT
2 stops34h 45m
Scandinavian Airlines
Mon 9/142:10 pm
SAT
-
LHR
2 stops21h 30m
Scandinavian Airlines
Deal found 5/5$996
This Scandinavian Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:20 am
LHR
-
SAT
2 stops18h 58m
Scandinavian Airlines
Sun 11/812:15 pm
SAT
-
LHR
2 stops23h 25m
Scandinavian Airlines
Deal found 5/7$1,000
This Expedia deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:50 pm
LHR
-
SAT
2 stops31h 23m
Multiple Airlines
Tue 9/112:10 pm
SAT
-
LHR
1 stop12h 35m
Multiple Airlines
Deal found 5/6$1,008
This deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1410:00 am
LHR
-
SAT
1 stop13h 44m
United Airlines
Sun 6/211:20 pm
SAT
-
LHR
1 stop16h 35m
United Airlines
Deal found 5/8$1,104

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 May 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$992
(Scandinavian Airlines)

One-way from

$593
(Bookaflight.co.il)

Popular in

December

Cheapest in

January

Average price

$1,243
Provider with most accurate pricing for London Heathrow-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-San Antonio flights.
Search Deals
From London Heathrow to San Antonio
Search Deals
One-way flight from London Heathrow to San Antonio
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 9, 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

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 11/4

6:40 am-10:27 pm

2 stops21h 47m

San Antonio

Sun 11/8

4:10 pm-6:30 pm

2 stops20h 20m

$1,000

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 9/15

6:40 am-11:18 pm

2 stops22h 38m

San Antonio

Sun 9/20

2:10 pm-9:40 pm

2 stops25h 30m

$1,169

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 11/4

9:30 am-9:07 pm

2 stops17h 37m

San Antonio

Sun 11/8

5:00 pm-5:55 am

1 stop30h 55m

$1,226

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 6/18

6:40 am-11:52 pm

2 stops23h 12m

San Antonio

Mon 6/22

2:40 pm-4:00 pm

2 stops19h 20m

$1,263
Quickest round-trip

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 9/10

1:40 pm-9:16 pm

1 stop13h 36m

San Antonio

Mon 9/14

11:50 am-7:45 am

1 stop13h 55m

$1,293
Cheapest one-way

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 5/15

6:30 am-11:00 am

3 stops58h 30m

$624
Quickest one-way

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 9/13

1:40 pm-10:38 pm

1 stop14h 58m

$678

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 5/14

10:05 pm-11:00 am

2 stops42h 55m

$765

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 6/22

7:30 am-10:42 pm

2 stops21h 12m

$944

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 6/29

7:30 am-8:22 pm

2 stops18h 52m

$957

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Heathrow to San Antonio

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 Heathrow to San Antonio in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $993). Flying from London Heathrow Airport to San Antonio in December is currently the most expensive (average of $1,575). 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 19h 28m. There are 4967 mi between London Heathrow Airport and San Antonio.

  • 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $993). Flying from London Heathrow Airport to San Antonio in December is currently the most expensive (average of $1,575). 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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