How long is the flight from San Antonio to London Heathrow Airport?

For as low as $629, Virgin Atlantic can have you in London Heathrow Airport from San Antonio in 13h 11m. There are 4967 mi between San Antonio and London Heathrow Airport. This flight may include one or multiple stops.

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

Cheapflights users have booked flights from San Antonio to London Heathrow Airport round-trip from $530. Other airlines that can offer you cheap pricing are American Airlines, from $530, and United Airlines, from $531. Delta is 43% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Heathrow Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What are the most popular airlines that fly from San Antonio to London Heathrow Airport?

When booking a flight from San Antonio to London Heathrow Airport, you may want to consider flying on British Airways, United Airlines or American Airlines as they are the most popular for this route.

Most accurate provider : When it comes to deals on San Antonio-London Heathrow Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-London Heathrow Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-London Heathrow Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Antonio-London Heathrow Airport 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 San Antonio-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from San Antonio to London Heathrow?

Located just 7.6 mi from the city center, San Antonio is the airport most travelers will use when flying to London Heathrow from San Antonio. Booking flights from San Antonio (SAT) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 6 different airlines.

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

Yes. In addition to deals on San Antonio to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Heathrow.

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

Yes. Cheapflights offers flight deals from San Antonio to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$234+ Flights from San Antonio to London Heathrow Airport

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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.

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Cheapflights Tip: The best prices from San Antonio to London Heathrow are usually found in October or August, booked 75 days in advance, depart on a Thursday or Sunday and return on a Monday

Cheap flight deals from San Antonio to Heathrow

Cheapest flights from San Antonio to Heathrow
Explore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Tue 12/237:30 pmSAT - LHR

1 stop30h 00mUnited Airlines

Mon 1/194:40 pmLHR - SAT

2 stops34h 16mUnited Airlines

Deal found 12/23

$842

Sat 12/272:13 pmSAT - LHR

1 stop14h 02mLufthansa

Thu 1/810:25 amLHR - SAT

1 stop18h 48mLufthansa

Deal found 12/21

$900

Wed 12/244:05 pmSAT - LHR

1 stop12h 10mUnited Airlines

Tue 12/3010:00 amLHR - SAT

1 stop17h 26mUnited Airlines

Deal found 12/22

$901

Tue 12/234:05 pmSAT - LHR

1 stop33h 25mUnited Airlines

Tue 12/3010:00 amLHR - SAT

1 stop17h 26mUnited Airlines

Deal found 12/22

$906

Tue 12/234:05 pmSAT - LHR

1 stop33h 25mLufthansa

Mon 1/1910:25 amLHR - SAT

1 stop14h 44mLufthansa

Deal found 12/23

$907

Wed 12/242:13 pmSAT - LHR

2 stops16h 47mLufthansa

Tue 12/3010:00 amLHR - SAT

1 stop17h 26mLufthansa

Deal found 12/22

$908

Wed 12/242:13 pmSAT - LHR

2 stops16h 47mMultiple Airlines

Tue 12/301:25 pmLHR - SAT

2 stops29h 47mMultiple Airlines

Deal found 12/22

$919

Tue 12/232:13 pmSAT - LHR

2 stops35h 42mLufthansa

Tue 12/3010:00 amLHR - SAT

1 stop17h 26mLufthansa

Deal found 12/22

$923

Fri 12/2612:25 pmSAT - LHR

1 stop16h 25mLufthansa

Sun 12/2812:05 pmLHR - SAT

1 stop15h 21mLufthansa

Deal found 12/22

$956

Thu 12/259:51 amSAT - LHR

1 stop15h 39mUnited Airlines

Tue 12/3010:00 amLHR - SAT

1 stop13h 49mUnited Airlines

Deal found 12/22

$961

Sat 12/2711:28 amSAT - LHR

2 stops14h 27mUnited Airlines

Thu 1/89:10 amLHR - SAT

2 stops16h 31mUnited Airlines

Deal found 12/22

$964

Best flights from San Antonio to Heathrow
Discover carefully curated flight deals from San Antonio to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Wed 2/44:29 pmSAT - LHR

1 stop13h 11mVirgin Atlantic

Wed 2/116:30 amLHR - SAT

2 stops16h 52mVirgin Atlantic

Deal found 12/23

$629

Sun 1/1812:55 pmSAT - LHR

1 stop14h 25mDelta

Sun 1/258:40 amLHR - SAT

2 stops18h 54mDelta

Deal found 12/21

$629

Thu 2/512:55 pmSAT - LHR

1 stop12h 00mVirgin Atlantic

Thu 2/126:30 amLHR - SAT

2 stops16h 52mVirgin Atlantic

Deal found 12/21

$629

Wed 1/216:30 amSAT - LHR

1 stop17h 55mDelta

Wed 1/2810:00 amLHR - SAT

2 stops18h 55mDelta

Deal found 12/22

$629

Wed 2/116:30 amSAT - LHR

1 stop18h 35mDelta

Wed 2/1811:45 amLHR - SAT

2 stops18h 50mDelta

Deal found 12/21

$629

Wed 1/2112:55 pmSAT - LHR

1 stop13h 10mVirgin Atlantic

Wed 1/286:30 amLHR - SAT

2 stops16h 52mVirgin Atlantic

Deal found 12/22

$629

Thu 2/510:45 amSAT - LHR

2 stops16h 00mDelta

Mon 2/98:40 amLHR - SAT

2 stops17h 45mDelta

Deal found 12/22

$634

Wed 4/11:37 pmSAT - LHR

1 stop11h 08mDelta

Wed 4/86:30 amLHR - SAT

2 stops20h 03mDelta

Deal found 12/21

$645

Last-minute flights from San Antonio to Heathrow
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated December 23, 2025 and is based on user searches.

Mon 1/52:13 pmSAT - LHR

1 stop14h 02mLufthansa

Tue 3/177:30 amLHR - SAT

2 stops20h 27mLufthansa

Deal found 12/23

$754

Wed 1/72:15 pmSAT - LHR

1 stop11h 15mLufthansa

Tue 1/2011:10 amLHR - SAT

2 stops18h 03mLufthansa

Deal found 12/21

$769

Mon 1/126:30 amSAT - LHR

3 stops20h 45mMultiple Airlines

Tue 1/208:50 amLHR - SAT

3 stops21h 02mMultiple Airlines

Deal found 12/22

$733

Mon 1/1212:15 pmSAT - LHR

1 stop16h 35mLufthansa

Tue 1/2011:10 amLHR - SAT

2 stops18h 03mLufthansa

Deal found 12/22

$744

Mon 1/1212:15 pmSAT - LHR

2 stops16h 30mLufthansa

Fri 1/239:30 amLHR - SAT

2 stops17h 51mLufthansa

Deal found 12/22

$773

Wed 1/146:30 amSAT - LHR

3 stops20h 45mMultiple Airlines

Fri 1/238:50 amLHR - SAT

3 stops21h 02mMultiple Airlines

Deal found 12/22

$721

Wed 1/216:30 amSAT - LHR

1 stop17h 55mDelta

Wed 1/2810:00 amLHR - SAT

2 stops18h 55mDelta

Deal found 12/22

$629

Wed 1/2110:45 amSAT - LHR

2 stops15h 20mVirgin Atlantic

Fri 1/306:30 amLHR - SAT

2 stops16h 52mVirgin Atlantic

Deal found 12/22

$634

Wed 1/211:40 pmSAT - LHR

1 stop12h 10mKLM

Fri 1/3012:30 pmLHR - SAT

1 stop13h 55mKLM

Deal found 12/22

$657

Fri 1/2311:43 amSAT - LHR

2 stops14h 42mUnited Airlines

Tue 1/276:35 amLHR - SAT

2 stops20h 09mUnited Airlines

Deal found 12/21

$747

One-way flights from San Antonio to Heathrow
Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Sat 5/96:06 pmSAT - LHR

1 stop30h 49mBritish Airways

Deal found 12/21

$234

Sat 5/912:15 pmSAT - LHR

2 stops16h 00mDelta

Deal found 12/21

$272

Sun 3/18:24 pmSAT - LHR

3 stops54h 46mMultiple Airlines

Deal found 12/21

$298

Fri 5/152:39 pmSAT - LHR

1 stop11h 26mMultiple Airlines

Deal found 12/22

$333

Fri 5/156:20 pmSAT - LHR

2 stops14h 15mDelta

Deal found 12/22

$340

Sat 5/910:26 amSAT - LHR

3 stops44h 59mMultiple Airlines

Deal found 12/21

$385

Mon 6/151:15 pmSAT - LHR

1 stop11h 35mAmerican Airlines

Deal found 12/21

$438

Sun 3/12:10 pmSAT - LHR

1 stop14h 05mLufthansa

Deal found 12/21

$450

Sun 3/110:57 amSAT - LHR

2 stops15h 08mVirgin Atlantic

Deal found 12/21

$461

Mon 6/157:33 pmSAT - LHR

2 stops39h 42mIberia

Deal found 12/21

$463

Sun 1/48:08 pmSAT - LHR

1 stop33h 27mBritish Airways

Deal found 12/23

$501

Find flight deals from San Antonio to Heathrow

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$629 (Delta)
One-way from	$234 (oojo)
Popular in	June
Cheapest in	October
Average price	$1,328

Provider with most accurate pricing for San Antonio-London Heathrow flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Antonio-London Heathrow flights.

Search Deals

From San Antonio to London Heathrow

Search Deals

One-way flight from San Antonio to London Heathrow

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($203 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 2/4

4:29 pm-11:40 am

1 stop13h 11m

London Heathrow

Wed 2/11

6:30 am-5:22 pm

2 stops16h 52m

$629

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 1/18

12:55 pm-9:20 am

1 stop14h 25m

London Heathrow

Sun 1/25

8:40 am-9:34 pm

2 stops18h 54m

$629

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Thu 2/5

12:55 pm-6:55 am

1 stop12h 00m

London Heathrow

Thu 2/12

6:30 am-5:22 pm

2 stops16h 52m

$629

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 1/21

6:30 am-6:25 am

1 stop17h 55m

London Heathrow

Wed 1/28

10:00 am-10:55 pm

2 stops18h 55m

$629

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 2/11

6:30 am-7:05 am

1 stop18h 35m

London Heathrow

Wed 2/18

11:45 am-12:35 am

2 stops18h 50m

$629

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 1/21

12:55 pm-8:05 am

1 stop13h 10m

London Heathrow

Wed 1/28

6:30 am-5:22 pm

2 stops16h 52m

$629

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Thu 2/5

10:45 am-8:45 am

2 stops16h 00m

London Heathrow

Mon 2/9

8:40 am-8:25 pm

2 stops17h 45m

$634

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 4/1

1:37 pm-6:45 am

1 stop11h 08m

London Heathrow

Wed 4/8

6:30 am-8:33 pm

2 stops20h 03m

$645

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 5/9

6:06 pm-6:55 am

1 stop30h 49m

$234

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 5/9

12:15 pm-10:15 am

2 stops16h 00m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 18 results

Compare providers for flights from San Antonio to Heathrow

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Heathrow in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Ovago	Price Accuracy2 stars	Trust Score*2 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 San Antonio-London Heathrow Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-London Heathrow Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-London Heathrow Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Antonio-London Heathrow Airport 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 San Antonio-London Heathrow Airport 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 San Antonio to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Antonio 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 San Antonio to London Heathrow Airport

How far ahead should I book a flight from San Antonio to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from San Antonio to London Heathrow Airport, you should look to book at least 29 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 San Antonio to London Heathrow Airport?

Currently, September is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of $527). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of $835). 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.

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

When flying from San Antonio to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 13% versus a flight in the evening.

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

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

Reviews of airlines servicing Heathrow

Peruse reviews from past customers who have flown with Delta, Virgin Atlantic, and United Airlines from San Antonio to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,014 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Virgin Atlantic

7.5

Good

677 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,105 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,054 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

British Airways

6.7

Okay

7,605 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

What airport do you fly from for flights from San Antonio to London Heathrow?
Located just 7.6 mi from the city center, San Antonio is the airport most travelers will use when flying to London Heathrow from San Antonio. Booking flights from San Antonio (SAT) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 6 different airlines.
How long is the flight from San Antonio to London Heathrow Airport?
For as low as $629, Virgin Atlantic can have you in London Heathrow Airport from San Antonio in 13h 11m. There are 4967 mi between San Antonio and London Heathrow Airport. This flight may include one or multiple stops.
What are the cheapest airlines flying from San Antonio to London Heathrow Airport round-trip?
Cheapflights users have booked flights from San Antonio to London Heathrow Airport round-trip from $530. Other airlines that can offer you cheap pricing are American Airlines, from $530, and United Airlines, from $531. Delta is 43% cheaper than the average price of flights available within the next 90 days to this destination.
Can I find deals for flights from San Antonio to Heathrow that include hotel bookings?
Yes. In addition to deals on San Antonio to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Heathrow.
Can I find deals for business class flights from San Antonio to Heathrow?
Yes. Cheapflights offers flight deals from San Antonio to Heathrow 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 San Antonio to London Heathrow Airport?
Currently, September is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of $527). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of $835). 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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Top 6 airlines flying from San Antonio to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$530	Average$703	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$530	Average$849	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$531	Average$927	FlexibilityNo cancel fee	On-time69%
British Airways	Cheapest$566	Average$874	FlexibilityNo cancel fee	On-time70%
Virgin Atlantic	Cheapest$600	Average$780	FlexibilityNo cancel fee	On-time72%
Iberia	Cheapest$668	Average$956	FlexibilityNo cancel fee	On-time77%

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$234+ Cheap flights from San Antonio (SAT) to Heathrow (LHR)

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to Heathrow 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 San Antonio to London Heathrow are usually found in October or August, booked 75 days in advance, depart on a Thursday or Sunday and return on a Monday

Cheap flight deals from San Antonio to Heathrow

Cheapest flights from San Antonio to HeathrowExplore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Explore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Find flight deals from San Antonio to Heathrow

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Compare providers for flights from San Antonio to Heathrow

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 San Antonio to Heathrow in December.

Best time to book a flight from San Antonio to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Antonio with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to London Heathrow Airport

How far ahead should I book a flight from San Antonio to London Heathrow Airport?

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

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

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

Reviews of airlines servicing Heathrow

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Heathrow. 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 from for flights from San Antonio to London Heathrow?

How long is the flight from San Antonio to London Heathrow Airport?

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

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

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

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

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

Traveling to a place near London Heathrow Airport?

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Alternative routes for San Antonio to Heathrow

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Top 6 airlines flying from San Antonio to Heathrow

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Cheapest flights from San Antonio to Heathrow
Explore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.