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$658+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
Apr 7 — Apr 141
Tue 4/7
Tue 4/14
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 March 8, 2026.

This The Travel House deal was found by Cheapflights users on 3/4. 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.
Fri 10/26:40 am
LHR
-
SAT
2 stops21h 35m
Scandinavian Airlines
Fri 10/2312:10 pm
SAT
-
LHR
2 stops21h 50m
Scandinavian Airlines
Deal found 3/4$797
This FlightHub deal was found by Cheapflights users on 3/4. 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.
Mon 10/56:40 am
LHR
-
SAT
2 stops21h 35m
Scandinavian Airlines
Wed 10/1412:10 pm
SAT
-
LHR
2 stops23h 30m
Scandinavian Airlines
Deal found 3/4$829
This Scandinavian Airlines deal was found by Cheapflights users on 3/4. 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 10/86:40 am
LHR
-
SAT
2 stops23h 48m
Scandinavian Airlines
Sat 10/172:10 pm
SAT
-
LHR
2 stops21h 30m
Scandinavian Airlines
Deal found 3/4$851
This FlightHub deal was found by Cheapflights users on 3/4. 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 10/610:20 am
LHR
-
SAT
2 stops18h 58m
Scandinavian Airlines
Wed 10/144:10 pm
SAT
-
LHR
2 stops19h 30m
Scandinavian Airlines
Deal found 3/4$870
This Scandinavian Airlines deal was found by Cheapflights users on 3/7. 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 9/25:00 pm
LHR
-
SAT
2 stops37h 15m
Scandinavian Airlines
Sun 9/612:10 pm
SAT
-
LHR
2 stops23h 30m
Scandinavian Airlines
Deal found 3/7$882
This Scandinavian Airlines deal was found by Cheapflights users on 3/6. 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.
Tue 4/216:40 am
LHR
-
SAT
2 stops24h 06m
Scandinavian Airlines
Tue 4/282:00 pm
SAT
-
LHR
2 stops21h 40m
Scandinavian Airlines
Deal found 3/6$904
This Scandinavian Airlines deal was found by Cheapflights users on 3/4. 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 9/166:40 am
LHR
-
SAT
2 stops22h 38m
Scandinavian Airlines
Wed 9/2312:10 pm
SAT
-
LHR
3 stops22h 15m
Scandinavian Airlines
Deal found 3/4$934
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:35 pm
LHR
-
SAT
2 stops28h 05m
Multiple Airlines
Mon 4/203:00 pm
SAT
-
LHR
2 stops17h 25m
Multiple Airlines
Deal found 3/5$974
This The Travel House deal was found by Cheapflights users on 3/4. 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.
Mon 6/87:30 pm
LHR
-
SAT
2 stops33h 48m
Scandinavian Airlines
Sun 6/2112:15 pm
SAT
-
LHR
2 stops24h 15m
Scandinavian Airlines
Deal found 3/4$976

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 March 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$882
(Scandinavian Airlines)

One-way from

$658
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,110
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 ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 8, 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 9/2

5:00 pm-12:15 am

2 stops37h 15m

San Antonio

Sun 9/6

12:10 pm-5:40 pm

2 stops23h 30m

$882

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 4/12

7:30 pm-9:03 pm

2 stops31h 33m

San Antonio

Wed 4/29

11:58 am-6:55 am

1 stop12h 57m

$1,069

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 4/17

2:10 pm-1:17 pm

2 stops29h 07m

San Antonio

Fri 4/24

6:00 am-6:30 am

3 stops42h 30m

$1,072

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 4/15

10:50 am-10:58 pm

2 stops18h 08m

San Antonio

Mon 4/27

2:02 pm-8:30 am

1 stop12h 28m

$1,084

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 4/13

1:40 pm-9:03 pm

1 stop13h 23m

San Antonio

Mon 5/4

12:20 pm-7:15 am

1 stop12h 55m

$1,107

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 4/20

7:25 am-7:48 pm

2 stops18h 23m

San Antonio

Mon 4/27

6:49 am-5:55 am

2 stops17h 06m

$1,123

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 4/22

7:25 am-7:48 pm

2 stops18h 23m

San Antonio

Wed 4/29

2:02 pm-11:55 am

1 stop15h 53m

$1,129

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 5/6

7:25 am-7:40 pm

2 stops18h 15m

San Antonio

Mon 5/11

11:45 am-8:30 am

2 stops14h 45m

$1,129
Quickest round-trip

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 4/21

1:40 pm-9:03 pm

1 stop13h 23m

San Antonio

Tue 4/28

6:02 pm-11:35 am

1 stop11h 33m

$1,157

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 4/12

2:05 pm-3:11 pm

2 stops31h 06m

San Antonio

Wed 4/29

4:17 pm-11:35 am

1 stop13h 18m

$1,157

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 19 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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
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?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to San Antonio. Price data was last updated on March 6, 2026.

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 48 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, December is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $439). Flying from London Heathrow Airport to San Antonio in July is currently the most expensive (average of $736). 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.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated March 8, 2026.
Get a feel of what it's like to fly with British Airways from London Heathrow Airport to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,779 reviews

Entertainment

6.4

Crew

7.6

Food

6.4

Comfort

6.8

Overall

6.7

Boarding

6.9

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,779 reviews
British Airways
6.7
Okay
7,779 reviews

Entertainment

6.4

Crew

7.6

Food

6.4

Comfort

6.8

Overall

6.7

Boarding

6.9

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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 1 airline has 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 18h 08m. 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.

  • What is the cheapest airline to fly from London Heathrow Airport to San Antonio round-trip?

    Our cheapest airline available from London Heathrow Airport to San Antonio is British Airways. Our recent data shows that you can find tickets from as low as $1,058 on this airline. British Airways is 7% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, December is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $439). Flying from London Heathrow Airport to San Antonio in July is currently the most expensive (average of $736). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to San Antonio

Discover the top airline that operate flights from Heathrow to San Antonio. 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 March 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,058Average$1,430FlexibilityNo cancel feeOn-time70%

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