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San Antonio

$545+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
Oct 26 — Nov 21
Sun 10/26
Sun 11/2
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

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

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Cheapflights Tip: The best prices from London Heathrow to San Antonio are usually found in November or March, booked 84 days in advance, depart on a Monday or Thursday and return on a Thursday

Cheap 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 September 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$808
(Mytrip)

One-way from

$545
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$964
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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Highest demand for flights based on searches. 15% potential increase in price ($192 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 26, 2025.

This Mytrip deal was found by Cheapflights users on 9/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:20 pmLHR - SAT
2 stops30h 08mMultiple Airlines
Sun 11/163:02 pmSAT - LHR
1 stop19h 48mMultiple Airlines
Deal found 9/25$808
This Scandinavian Airlines deal was found by Cheapflights users on 9/23. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:40 amLHR - SAT
2 stops23h 40mScandinavian Airlines
Sat 11/151:05 pmSAT - LHR
2 stops26h 35mScandinavian Airlines
Deal found 9/23$838
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:55 amLHR - SAT
2 stops20h 34mUnited Airlines
Sun 10/125:56 pmSAT - LHR
1 stop11h 39mUnited Airlines
Deal found 9/25$889
This United Airlines deal was found by Cheapflights users on 9/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:35 amLHR - SAT
2 stops19h 02mUnited Airlines
Sat 11/157:29 amSAT - LHR
1 stop18h 01mUnited Airlines
Deal found 9/23$891
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:30 amLHR - SAT
2 stops17h 50mUnited Airlines
Sun 11/169:45 amSAT - LHR
2 stops16h 10mUnited Airlines
Deal found 9/25$892
This United Airlines deal was found by Cheapflights users on 9/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:30 amLHR - SAT
2 stops20h 57mUnited Airlines
Sun 11/302:14 pmSAT - LHR
1 stop11h 16mUnited Airlines
Deal found 9/24$895
This ChecknFly deal was found by Cheapflights users on 9/25. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:25 pmLHR - SAT
2 stops25h 23mAir Canada
Sun 11/1610:00 amSAT - LHR
2 stops15h 10mAir Canada
Deal found 9/25$897
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:25 amLHR - SAT
1 stop18h 51mLufthansa
Sun 11/304:24 pmSAT - LHR
1 stop11h 51mLufthansa
Deal found 9/24$901
This TravelUp deal was found by Cheapflights users on 9/24. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:30 pmLHR - SAT
2 stops30h 45mMultiple Airlines
Sun 11/307:30 pmSAT - LHR
2 stops29h 40mMultiple Airlines
Deal found 9/24$905
This Sembo deal was found by Cheapflights users on 9/24. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:30 amLHR - SAT
2 stops19h 45mMultiple Airlines
Wed 11/267:30 pmSAT - LHR
2 stops29h 40mMultiple Airlines
Deal found 9/24$912
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:05 pmLHR - SAT
1 stop13h 32mUnited Airlines
Mon 11/172:14 pmSAT - LHR
1 stop11h 16mUnited Airlines
Deal found 9/26$917

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 September 26, 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

Sat 11/8

6:40 am-12:20 am

2 stops23h 40m

San Antonio

Sat 11/15

1:05 pm-9:40 pm

2 stops26h 35m

$838

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 11/9

8:00 am-10:27 pm

1 stop20h 27m

San Antonio

Sun 11/16

6:00 am-5:25 am

1 stop17h 25m

$839

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 11/8

6:35 am-7:37 pm

2 stops19h 02m

San Antonio

Sat 11/15

7:29 am-7:30 am

1 stop18h 01m

$891

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 11/9

9:30 am-9:20 pm

2 stops17h 50m

San Antonio

Sun 11/16

9:45 am-7:55 am

2 stops16h 10m

$892

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 3/14

6:30 am-11:37 pm

2 stops22h 07m

San Antonio

Wed 3/18

4:20 pm-10:50 am

2 stops13h 30m

$892

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 11/23

7:30 am-11:16 pm

2 stops21h 46m

San Antonio

Sun 11/30

2:14 pm-7:30 am

1 stop11h 16m

$892

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 3/5

11:35 am-9:07 pm

1 stop15h 32m

San Antonio

Mon 3/9

2:15 pm-7:30 am

1 stop12h 15m

$917

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 11/10

12:05 pm-7:37 pm

1 stop13h 32m

San Antonio

Mon 11/17

2:14 pm-7:30 am

1 stop11h 16m

$917

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 11/9

10:00 am-6:10 pm

1 stop14h 10m

San Antonio

Sun 11/16

2:14 pm-7:30 am

1 stop11h 16m

$921

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 10/22

6:00 am-1:19 pm

3 stops37h 19m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 13 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 September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*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 September 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 84 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, August is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $295). Flying from London Heathrow Airport to San Antonio in March is currently the most expensive (average of $376). 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 September 26, 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
7,399 reviews

Comfort

6.7

Overall

6.7

Food

6.3

Entertainment

6.4

Crew

7.6

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
7,399 reviews
British Airways
6.7
Okay
7,399 reviews

Comfort

6.7

Overall

6.7

Food

6.3

Entertainment

6.4

Crew

7.6

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 19h 02m. 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 $1,014 on this airline.

  • 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, August is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of $295). Flying from London Heathrow Airport to San Antonio in March is currently the most expensive (average of $376). 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 September 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,014Average$1,430FlexibilityNo cancel feeOn-time70%

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