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$449+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
jun. 28 — jul. 51
sáb. 6/28
sáb. 7/5
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to San Antonio are usually found in November or September, booked 79 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 junio 23, 2025.

Round-trip from

$866
(Expedia)

One-way from

$449
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$1,102
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. 12% potential increase in price ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 23, 2025.

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.
vie. 9/126:50 amLHR - SAT
2 stops19h 43mMultiple Airlines
lun. 9/1512:00 pmSAT - LHR
1 stop12h 55mMultiple Airlines
Deal found 6/22$866
This ChecknFly 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/2612:05 pmLHR - SAT
2 stops29h 53mLufthansa
mar. 10/75:56 pmSAT - LHR
1 stop11h 39mLufthansa
Deal found 6/22$878
This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/266:40 amLHR - SAT
2 stops22h 41mScandinavian Airlines
mar. 10/712:15 pmSAT - LHR
3 stops22h 10mScandinavian Airlines
Deal found 6/23$884
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/212:10 pmLHR - SAT
1 stop15h 20mIberia
lun. 11/243:20 pmSAT - LHR
2 stops14h 50mIberia
Deal found 6/22$1,047
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/189:30 amLHR - SAT
2 stops37h 22mAir Canada
mar. 9/25:30 amSAT - LHR
2 stops19h 00mAir Canada
Deal found 6/23$1,055
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/161:25 pmLHR - SAT
2 stops31h 39mUnited Airlines
lun. 12/295:00 pmSAT - LHR
1 stop12h 15mUnited Airlines
Deal found 6/23$1,138
This ResecentrumGruppen deal was found by Cheapflights users on 6/20. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/1612:45 pmLHR - SAT
1 stop14h 40mKLM
jue. 7/3112:24 pmSAT - LHR
1 stop12h 21mKLM
Deal found 6/20$1,139
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/1611:55 amLHR - SAT
1 stop14h 05mBritish Airways
lun. 12/295:40 pmSAT - LHR
1 stop12h 00mBritish Airways
Deal found 6/23$1,151
This SmartFares deal was found by Cheapflights users on 6/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/612:45 pmLHR - SAT
1 stop14h 40mVirgin Atlantic
mié. 8/1312:05 pmSAT - LHR
1 stop12h 40mVirgin Atlantic
Deal found 6/21$1,160
This Delta deal was found by Cheapflights users on 6/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/56:30 amLHR - SAT
2 stops16h 38mDelta
mar. 8/1211:27 amSAT - LHR
2 stops15h 23mDelta
Deal found 6/20$1,195

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 junio 23, 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

vie. 9/12

6:50 am-8:33 pm

2 stops19h 43m

San Antonio

lun. 9/15

12:00 pm-6:55 am

1 stop12h 55m

$866

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

vie. 9/26

12:05 pm-11:58 am

2 stops29h 53m

San Antonio

mar. 10/7

5:56 pm-11:35 am

1 stop11h 39m

$878

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

vie. 9/26

6:40 am-11:21 pm

2 stops22h 41m

San Antonio

mar. 10/7

12:15 pm-4:25 pm

3 stops22h 10m

$884

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

vie. 11/21

2:10 pm-11:30 pm

1 stop15h 20m

San Antonio

lun. 11/24

3:20 pm-12:10 pm

2 stops14h 50m

$1,047

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

lun. 8/18

9:30 am-4:52 pm

2 stops37h 22m

San Antonio

mar. 9/2

5:30 am-6:30 am

2 stops19h 00m

$1,055

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

mar. 12/16

1:25 pm-3:04 pm

2 stops31h 39m

San Antonio

lun. 12/29

5:00 pm-11:15 am

1 stop12h 15m

$1,138

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

mié. 7/16

12:45 pm-9:25 pm

1 stop14h 40m

San Antonio

jue. 7/31

12:24 pm-6:45 am

1 stop12h 21m

$1,139

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

mar. 12/16

11:55 am-8:00 pm

1 stop14h 05m

San Antonio

lun. 12/29

5:40 pm-11:40 am

1 stop12h 00m

$1,151

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

mié. 8/6

12:45 pm-9:25 pm

1 stop14h 40m

San Antonio

mié. 8/13

12:05 pm-6:45 am

1 stop12h 40m

$1,160

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

mar. 8/5

6:30 am-5:08 pm

2 stops16h 38m

San Antonio

mar. 8/12

11:27 am-8:50 am

2 stops15h 23m

$1,195

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 23 results
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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 June 20, 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 79 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.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 junio 23, 2025.
Read through reviews of airlines operating flights from London to San Antonio, such as Delta, Air New Zealand and KLM. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,965 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,965 reviews
Delta
8.0
Very good
7,965 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air New Zealand
8.0
Very good
486 reviews
Delta
8.0
Very good
7,965 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
7,965 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,295 reviews
Delta
8.0
Very good
7,965 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,470 reviews
Delta
8.0
Very good
7,965 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines flying from London Heathrow Airport to San Antonio round-trip?

    Our cheapest airline available from London Heathrow Airport to San Antonio is Lufthansa. Our recent data shows that you can find tickets from as low as $878 on this airline. Additional options worth looking into are Scandinavian Airlines and Iberia, starting at $884 and $1,047 round-trip. Lufthansa is 9% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to San Antonio one-way?

    $924 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Lufthansa and Iberia, with prices starting from $948 and $969, respectively.

  • 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 London Heathrow Airport?

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