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$470+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Find cheap flights from Heathrow to San Antonio with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from London Heathrow to San Antonio are usually found in March or February, booked 48 days in advance, depart on a Monday or Thursday and return on a Thursday

Cheap flight deals from Heathrow to San Antonio

Best flights from Heathrow to San Antonio
Discover carefully curated flight deals from Heathrow to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Tue 2/310:50 amLHR - SAT
1 stop19h 02mMultiple Airlines
Tue 2/106:30 amSAT - LHR
1 stop18h 15mMultiple Airlines
Deal found 12/20$768
This Scandinavian Airlines deal was found by Cheapflights users on 12/19. 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 3/126:40 amLHR - SAT
2 stops22h 52mScandinavian Airlines
Fri 3/204:29 pmSAT - LHR
3 stops21h 01mScandinavian Airlines
Deal found 12/19$841
This TravelUp deal was found by Cheapflights users on 12/20. 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.
Mon 1/128:20 amLHR - SAT
1 stop15h 11mBritish Airways
Wed 1/286:01 pmSAT - LHR
1 stop11h 39mBritish Airways
Deal found 12/20$946
This Cheapflightsfares deal was found by Cheapflights users on 12/20. 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 3/211:35 amLHR - SAT
1 stop15h 21mLufthansa
Tue 3/102:20 pmSAT - LHR
1 stop12h 10mLufthansa
Deal found 12/20$962
This FlightHub deal was found by Cheapflights users on 12/21. 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 4/186:40 amLHR - SAT
2 stops23h 34mScandinavian Airlines
Sat 4/2512:15 pmSAT - LHR
2 stops21h 45mScandinavian Airlines
Deal found 12/21$842
This Booking.com deal was found by Cheapflights users on 12/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/127:30 pmLHR - SAT
3 stops34h 22mMultiple Airlines
Wed 1/286:30 amSAT - LHR
3 stops27h 55mMultiple Airlines
Deal found 12/20$858
This Scandinavian Airlines deal was found by Cheapflights users on 12/20. 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 3/26:40 amLHR - SAT
2 stops23h 54mScandinavian Airlines
Tue 3/104:10 pmSAT - LHR
3 stops24h 25mScandinavian Airlines
Deal found 12/20$850
This Netflights deal was found by Cheapflights users on 12/20. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:05 amLHR - SAT
1 stop13h 33mBritish Airways
Mon 5/41:17 pmSAT - LHR
1 stop11h 33mBritish Airways
Deal found 12/20$970
This Kiwi.com deal was found by Cheapflights users on 12/19. 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.
Sat 2/2110:45 amLHR - SAT
2 stops19h 14mMultiple Airlines
Fri 2/276:00 amSAT - LHR
1 stop18h 45mMultiple Airlines
Deal found 12/19$897
This Trip.com deal was found by Cheapflights users on 12/19. 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.
Thu 3/127:30 amLHR - SAT
2 stops20h 01mMultiple Airlines
Fri 3/204:29 pmSAT - LHR
1 stop11h 31mMultiple Airlines
Deal found 12/19$973
This Finnair deal was found by Cheapflights users on 12/20. 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 1/128:20 amLHR - SAT
1 stop13h 25mMultiple Airlines
Mon 1/261:08 pmSAT - LHR
1 stop11h 42mMultiple Airlines
Deal found 12/20$973

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 December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$698
(Mytrip)

One-way from

$470
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$1,144
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. 12% potential increase in price ($161 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 21, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Antonio that are best for you.

Fly from

Heathrow

Fly to

San Antonio

Route

Depart

Return

Price

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 2/3

10:50 am-11:52 pm

1 stop19h 02m

San Antonio

Tue 2/10

6:30 am-6:45 am

1 stop18h 15m

$768

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 3/12

6:40 am-12:32 am

2 stops22h 52m

San Antonio

Fri 3/20

4:29 pm-6:30 pm

3 stops21h 01m

$841

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 4/18

6:40 am-12:14 am

2 stops23h 34m

San Antonio

Sat 4/25

12:15 pm-4:00 pm

2 stops21h 45m

$842

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 3/2

6:40 am-12:34 am

2 stops23h 54m

San Antonio

Tue 3/10

4:10 pm-9:35 pm

3 stops24h 25m

$850

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 1/12

7:30 pm-11:52 pm

3 stops34h 22m

San Antonio

Wed 1/28

6:30 am-4:25 pm

3 stops27h 55m

$858

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 2/21

10:45 am-11:59 pm

2 stops19h 14m

San Antonio

Fri 2/27

6:00 am-6:45 am

1 stop18h 45m

$897

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 1/12

8:20 am-5:31 pm

1 stop15h 11m

San Antonio

Wed 1/28

6:01 pm-11:40 am

1 stop11h 39m

$946

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 3/2

11:35 am-8:56 pm

1 stop15h 21m

San Antonio

Tue 3/10

2:20 pm-7:30 am

1 stop12h 10m

$962

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 4/13

10:05 am-5:38 pm

1 stop13h 33m

San Antonio

Mon 5/4

1:17 pm-6:50 am

1 stop11h 33m

$970

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 3/12

7:30 am-10:31 pm

2 stops20h 01m

San Antonio

Fri 3/20

4:29 pm-9:00 am

1 stop11h 31m

$973

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 17 results
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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London Heathrow Airport-San Antonio flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 19, 2025.

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, April is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $591). Flying from London Heathrow Airport to San Antonio in July is currently the most expensive (average of $735). 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 December 21, 2025.
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
7,600 reviews

Comfort

6.7

Entertainment

6.4

Crew

7.6

Boarding

6.9

Overall

6.7

Food

6.4

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
7,600 reviews
British Airways
6.7
Okay
7,600 reviews

Comfort

6.7

Entertainment

6.4

Crew

7.6

Boarding

6.9

Overall

6.7

Food

6.4

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 22h 52m. There are 4967 mi between London Heathrow Airport and San Antonio.

  • 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 $1,014 on this airline. British Airways is 6% 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, April is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $591). Flying from London Heathrow Airport to San Antonio in July is currently the most expensive (average of $735). 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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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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,014Average$1,421FlexibilityNo cancel feeOn-time70%

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