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 Scandinavian Airlines. Our recent data shows that you can find tickets from as low as $899 on this airline. Additional options worth looking into are British Airways and Virgin Atlantic, starting at $1,013 and $1,030 round-trip. Scandinavian Airlines is 3% 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?

$822 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 British Airways and Lufthansa, with prices starting from $967 and $1,058, respectively.

What is the cheapest day to fly from London Heathrow Airport to San Antonio?

Travelers seeking maximum savings on their London Heathrow Airport to San Antonio flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Wednesday flights are generally found to be more expensive for flights from London Heathrow Airport to San Antonio. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Antonio.

What is the cheapest month to fly from London Heathrow Airport to San Antonio?

February can be a great time to fly to San Antonio from London Heathrow Airport with a flight ticket averaging about $920. Cheapflights users have found deals in the month of February for as cheap as $658. The most expensive prices can be found in the month of August.

What is the cheapest time of day to fly from LHR to SAT?

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to San Antonio in the morning. If you’re flexible enough to do this you can expect to save up to 5% on your trip compared to booking a flight at noon.

Most accurate provider : When it comes to deals on London Heathrow Airport-San Antonio flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on London Heathrow Airport-San Antonio flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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.

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.

$625+ Flights from London Heathrow Airport to San Antonio - Compare & Save Big

Q: How far in advance should I book a flight from London Heathrow Airport to San Antonio?

To save on the cost of your flight from London Heathrow Airport to San Antonio, book at least 51 days before your planned departure. Booking around this time can save you about 25% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $732 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $948.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$782 (Mytrip)
One-way from	$625 (Kiwi.com)
Popular in	August
Cheapest in	November
Average price	$1,027

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 ($135 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 April 29, 2025.

Mon 6/98:30 amLHR - SAT

3 stops26h 34mMultiple Airlines

Mon 6/167:30 pmSAT - LHR

3 stops32h 30mMultiple Airlines

Deal found 4/28

$782

Tue 9/96:40 amLHR - SAT

2 stops22h 41mScandinavian Airlines

Tue 9/232:10 pmSAT - LHR

2 stops21h 30mScandinavian Airlines

Deal found 4/28

$899

Tue 9/93:10 pmLHR - SAT

1 stop14h 27mBritish Airways

Tue 9/235:30 pmSAT - LHR

1 stop11h 20mBritish Airways

Deal found 4/28

$1,013

Thu 9/1812:25 pmLHR - SAT

1 stop15h 04mVirgin Atlantic

Mon 9/2212:10 pmSAT - LHR

1 stop12h 15mVirgin Atlantic

Deal found 4/28

$1,030

Tue 9/98:40 amLHR - SAT

2 stops18h 49mDelta

Tue 9/2310:45 amSAT - LHR

1 stop14h 00mDelta

Deal found 4/28

$1,051

Tue 9/97:25 amLHR - SAT

2 stops18h 27mUnited Airlines

Mon 2/95:45 amSAT - LHR

1 stop19h 45mUnited Airlines

Deal found 4/27

$1,057

Fri 9/265:40 pmLHR - SAT

2 stops24h 10mLufthansa

Tue 10/712:56 pmSAT - LHR

1 stop14h 24mLufthansa

Deal found 4/28

$1,067

Wed 6/49:30 amLHR - SAT

2 stops36h 25mAir Canada

Thu 7/39:56 amSAT - LHR

2 stops14h 39mAir Canada

Deal found 4/27

$1,240

Thu 6/51:05 pmLHR - SAT

1 stop15h 13mKLM

Sat 6/286:11 pmSAT - LHR

1 stop13h 19mKLM

Deal found 4/27

$1,317

Sun 6/14:25 pmLHR - SAT

1 stop13h 33mIberia

Sun 6/297:24 pmSAT - LHR

1 stop29h 01mIberia

Deal found 4/27

$1,324

Mon 6/238:20 amLHR - SAT

1 stop15h 28mFinnair

Thu 6/261:24 pmSAT - LHR

1 stop15h 06mFinnair

Deal found 4/28

$1,333

Tue 7/18:50 amLHR - SAT

2 stops16h 34mAer Lingus

Thu 7/316:00 amSAT - LHR

2 stops20h 00mAer Lingus

Deal found 4/28

$1,437

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 April 29, 2025.

Mon 6/98:30 amLHR - SAT

3 stops26h 34mMultiple Airlines

Mon 6/167:30 pmSAT - LHR

3 stops32h 30mMultiple Airlines

Deal found 4/28

$782

Tue 9/96:40 amLHR - SAT

2 stops22h 41mScandinavian Airlines

Tue 9/232:10 pmSAT - LHR

2 stops21h 30mScandinavian Airlines

Deal found 4/28

$899

Tue 9/93:10 pmLHR - SAT

1 stop14h 27mBritish Airways

Tue 9/235:30 pmSAT - LHR

1 stop11h 20mBritish Airways

Deal found 4/28

$1,013

Thu 9/1812:25 pmLHR - SAT

1 stop15h 04mVirgin Atlantic

Mon 9/2212:10 pmSAT - LHR

1 stop12h 15mVirgin Atlantic

Deal found 4/28

$1,030

Tue 9/98:40 amLHR - SAT

2 stops18h 49mDelta

Tue 9/2310:45 amSAT - LHR

1 stop14h 00mDelta

Deal found 4/28

$1,051

Tue 9/97:25 amLHR - SAT

2 stops18h 27mUnited Airlines

Mon 2/95:45 amSAT - LHR

1 stop19h 45mUnited Airlines

Deal found 4/27

$1,057

Fri 9/265:40 pmLHR - SAT

2 stops24h 10mLufthansa

Tue 10/712:56 pmSAT - LHR

1 stop14h 24mLufthansa

Deal found 4/28

$1,067

Wed 6/49:30 amLHR - SAT

2 stops36h 25mAir Canada

Thu 7/39:56 amSAT - LHR

2 stops14h 39mAir Canada

Deal found 4/27

$1,240

Thu 6/51:05 pmLHR - SAT

1 stop15h 13mKLM

Sat 6/286:11 pmSAT - LHR

1 stop13h 19mKLM

Deal found 4/27

$1,317

Sun 6/14:25 pmLHR - SAT

1 stop13h 33mIberia

Sun 6/297:24 pmSAT - LHR

1 stop29h 01mIberia

Deal found 4/27

$1,324

Mon 6/238:20 amLHR - SAT

1 stop15h 28mFinnair

Thu 6/261:24 pmSAT - LHR

1 stop15h 06mFinnair

Deal found 4/28

$1,333

Tue 7/18:50 amLHR - SAT

2 stops16h 34mAer Lingus

Thu 7/316:00 amSAT - LHR

2 stops20h 00mAer Lingus

Deal found 4/28

$1,437

Last-minute flights from Heathrow to San Antonio
Discover last-minute flight deals from Heathrow to San Antonio. Data last updated April 29, 2025 and is based on user searches.

Mon 4/284:55 pmLHR - SAT

2 stops21h 37mAmerican Airlines

Tue 4/2911:00 amSAT - LHR

1 stop13h 25mAmerican Airlines

Deal found 4/28

$4,348

Mon 4/285:40 pmLHR - SAT

2 stops27h 53mAir Canada

Wed 4/305:30 amSAT - LHR

2 stops19h 00mAir Canada

Deal found 4/28

$4,512

Thu 5/11:25 pmLHR - SAT

2 stops16h 33mAer Lingus

Sun 5/113:15 pmSAT - LHR

2 stops16h 40mAer Lingus

Deal found 4/28

$1,250

Fri 5/23:05 pmLHR - SAT

2 stops40h 05mMultiple Airlines

Fri 5/97:05 amSAT - LHR

3 stops31h 15mMultiple Airlines

Deal found 4/28

$1,026

Fri 5/210:30 amLHR - SAT

1 stop13h 48mFinnair

Fri 5/96:43 pmSAT - LHR

1 stop13h 42mFinnair

Deal found 4/28

$1,510

Tue 5/610:55 amLHR - SAT

1 stop29h 53mVirgin Atlantic

Sun 5/116:19 pmSAT - LHR

1 stop30h 56mVirgin Atlantic

Deal found 4/28

$1,627

Tue 5/611:30 amLHR - SAT

2 stops17h 10mMultiple Airlines

Sun 5/116:19 pmSAT - LHR

2 stops29h 31mMultiple Airlines

Deal found 4/28

$1,749

Wed 5/73:20 pmLHR - SAT

2 stops23h 11mLufthansa

Wed 5/2810:04 amSAT - LHR

2 stops14h 41mLufthansa

Deal found 4/28

$1,859

Wed 5/77:05 amLHR - SAT

3 stops23h 16mScandinavian Airlines

Wed 5/284:00 pmSAT - LHR

2 stops20h 30mScandinavian Airlines

Deal found 4/28

$3,619

Thu 5/226:30 amLHR - SAT

2 stops16h 50mDelta

Tue 5/2710:32 amSAT - LHR

2 stops16h 18mDelta

Deal found 4/28

$2,022

Sun 5/258:20 amLHR - SAT

1 stop13h 29mBritish Airways

Sun 5/256:34 pmSAT - LHR

1 stop11h 41mBritish Airways

Deal found 4/28

$3,939

One-way flights from Heathrow to San Antonio
Search for one-way flight options from Heathrow to San Antonio. Find affordable one-way fares based on user searches. Data last updated April 29, 2025.

Thu 7/247:10 amLHR - SAT

3 stops22h 15mMultiple Airlines

Deal found 4/27

$625

Wed 5/1412:00 pmLHR - SAT

2 stops17h 50mAer Lingus

Deal found 4/28

$822

Mon 8/114:25 pmLHR - SAT

1 stop13h 15mBritish Airways

Deal found 4/28

$967

Sun 6/2911:25 amLHR - SAT

1 stop15h 32mLufthansa

Deal found 4/28

$1,058

Wed 5/149:50 amLHR - SAT

1 stop20h 09mFinnair

Deal found 4/28

$1,062

Sun 6/297:05 pmLHR - SAT

2 stops33h 54mTurkish Airlines

Deal found 4/28

$1,298

Wed 5/147:05 amLHR - SAT

3 stops23h 16mScandinavian Airlines

Deal found 4/28

$2,524

Sun 9/2812:15 pmLHR - SAT

1 stop13h 35mUnited Airlines

Deal found 4/28

$3,142

Cheapflights Fare Finder

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

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 6/9

8:30 am-5:04 am

3 stops26h 34m

San Antonio

Mon 6/16

7:30 pm-10:00 am

3 stops32h 30m

$782

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 9/9

6:40 am-11:21 pm

2 stops22h 41m

San Antonio

Tue 9/23

2:10 pm-5:40 pm

2 stops21h 30m

$899

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 9/9

3:10 pm-11:37 pm

1 stop14h 27m

San Antonio

Tue 9/23

5:30 pm-10:50 am

1 stop11h 20m

$1,013

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 9/18

12:25 pm-9:29 pm

1 stop15h 04m

San Antonio

Mon 9/22

12:10 pm-6:25 am

1 stop12h 15m

$1,030

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 9/9

8:40 am-9:29 pm

2 stops18h 49m

San Antonio

Tue 9/23

10:45 am-6:45 am

1 stop14h 00m

$1,051

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 9/9

7:25 am-7:52 pm

2 stops18h 27m

San Antonio

Mon 2/9

5:45 am-7:30 am

1 stop19h 45m

$1,057

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 9/26

5:40 pm-11:50 am

2 stops24h 10m

San Antonio

Tue 10/7

12:56 pm-9:20 am

1 stop14h 24m

$1,067

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 6/4

9:30 am-3:55 pm

2 stops36h 25m

San Antonio

Thu 7/3

9:56 am-6:35 am

2 stops14h 39m

$1,240

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 6/5

1:05 pm-10:18 pm

1 stop15h 13m

San Antonio

Sat 6/28

6:11 pm-1:30 pm

1 stop13h 19m

$1,317

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 6/1

4:25 pm-11:58 pm

1 stop13h 33m

San Antonio

Sun 6/29

7:24 pm-6:25 am

1 stop29h 01m

$1,324

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 20 results

Compare providers for flights from Heathrow to San Antonio

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 April.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy2 stars	Trust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on London Heathrow Airport-San Antonio flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 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

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

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

Read through reviews of airlines operating flights from London to San Antonio, such as Delta, KLM and Finnair. 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

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,929 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,273 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.4

Good

642 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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.
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 Scandinavian Airlines. Our recent data shows that you can find tickets from as low as $899 on this airline. Additional options worth looking into are British Airways and Virgin Atlantic, starting at $1,013 and $1,030 round-trip. Scandinavian Airlines is 3% 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?
$822 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 British Airways and Lufthansa, with prices starting from $967 and $1,058, 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

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Other flights to San Antonio

Top airline flying from Heathrow to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$1,014	Average$1,421	FlexibilityNo cancel fee	On-time70%

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$625+ 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Heathrow to San Antonio with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to San Antonio

Cheapest flights from Heathrow to San AntonioExplore 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 April 29, 2025.

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 April 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to San Antonio that are best for you.

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 April.

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.

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 April 25, 2025.

What is the cheapest month to book a flight from London Heathrow Airport to San Antonio?

Rainfall in San Antonio by month

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

Temperature in San Antonio by month

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

Reviews of airlines servicing San Antonio

Read through reviews of airlines operating flights from London to San Antonio, such as Delta, KLM and Finnair. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

Can I find deals for flights from Heathrow to San Antonio that include hotel bookings?

How can I find direct flights from Heathrow to San Antonio?

Can I find deals for business class flights from Heathrow to San Antonio?

What is the cheapest month to book a flight from London Heathrow Airport to San Antonio?

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Alternative routes for Heathrow to San Antonio

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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 April 29, 2025.