Which layover airport has the shortest travel time from San Antonio to London?

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 11h 22m.

Which layover airport has the shortest connection time from San Antonio to London?

Atlanta (ATL) has the shortest average layover time for this route: 1h 10m.

Which airport is the most popular layover for flights between San Antonio and London?

Houston (IAH) was the most common stop: 36% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to London?

British Airways, American Airlines and United Airlines are the top three most popular airlines that fly to London from San Antonio according to our data. British Airways is the first choice among our users, with 65% of people opting to fly with this airline when traveling to London. Keep in mind that there are 9 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from San Antonio to London?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $655.

What is the cheapest airline that flies from San Antonio to London?

British Airways, United Airlines, and Delta are the most popular carriers operating from San Antonio to London

When did momondo last update prices for flights from San Antonio Airport to London?

Prices for flights from San Antonio Airport to London refresh daily.

How many operators does momondo search for flights from San Antonio Airport to London?

As of November 2026, there are 5 operators available to choose from for flights from San Antonio Airport to London.

How old do you have to be to fly from San Antonio Airport to London?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to London.

What documentation or ID do you need to fly to London?

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$327 Cheap Flights from San Antonio to London in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Antonio to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:32 pm - 10:55 amSAT San Antonio-LHR London Heathrow

15h 23m1 stop Dallas/Fort Worth

9:45 am - 6:42 pmLHR London Heathrow-SAT San Antonio

14h 57m1 stop Dallas/Fort Worth

$799Multiple Airlines

Fri, Apr 9 - Fri, Apr 23

7:30 am - 6:30 amSAT San Antonio-LHR London Heathrow

18h 00m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl

6:50 am - 8:10 pmLHR London Heathrow-SAT San Antonio

19h 20m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

$879Multiple Airlines

Mon, Mar 22 - Wed, Apr 14

6:15 pm - 11:40 amSAT San Antonio-LHR London Heathrow

12h 25m1 stop Atlanta Hartsfield-Jackson

11:45 am - 11:20 pmLHR London Heathrow-SAT San Antonio

16h 35m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$894Delta

Sun, Mar 14 - Fri, Mar 19

1:25 pm - 12:00 pmSAT San Antonio-LHR London Heathrow

17h 35m1 stop Chicago O'Hare Intl

8:45 am - 11:08 pmLHR London Heathrow-SAT San Antonio

20h 23m2 stops Zurich Chicago O'Hare Intl

$897United Airlines

Mon, Mar 22 - Wed, Apr 14

8:00 am - 8:05 amSAT San Antonio-LHR London Heathrow

19h 05m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

11:45 am - 11:20 pmLHR London Heathrow-SAT San Antonio

16h 35m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$898Delta

Sun, Mar 14 - Fri, Mar 19

5:25 pm - 12:00 pmSAT San Antonio-LHR London Heathrow

12h 35m1 stop Chicago O'Hare Intl

6:50 am - 11:50 amLHR London Heathrow-SAT San Antonio

35h 00m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$900United Airlines

Mon, Mar 8 - Fri, Mar 12

6:15 pm - 12:15 pmSAT San Antonio-LHR London Heathrow

13h 00m1 stop Dallas/Fort Worth

9:30 am - 5:44 pmLHR London Heathrow-SAT San Antonio

14h 14m1 stop Chicago O'Hare Intl

$905British Airways

Mon, Mar 22 - Wed, Apr 14

5:45 pm - 12:10 pmSAT San Antonio-LHR London Heathrow

12h 25m1 stop Dallas/Fort Worth

12:55 pm - 8:59 pmLHR London Heathrow-SAT San Antonio

14h 04m1 stop Dallas/Fort Worth

$906British Airways

Wed, Apr 21 - Thu, Apr 29

6:30 am - 7:05 amSAT San Antonio-LHR London Heathrow

19h 35m1 stop Minneapolis St Paul

10:50 am - 12:28 amLHR London Heathrow-SAT San Antonio

18h 38m1 stop Atlanta Hartsfield-Jackson

$928Virgin Atlantic

Sun, Mar 14 - Fri, Mar 19

11:50 am - 7:45 amSAT San Antonio-LHR London Heathrow

13h 55m1 stop Detroit Metropolitan Wayne County

4:00 pm - 12:35 amLHR London Heathrow-SAT San Antonio

14h 35m1 stop Atlanta Hartsfield-Jackson

$953Virgin Atlantic

Wed, Dec 2 - Wed, Dec 16

Cheap last minute flights

Enter your travel dates to find the best prices.

9:22 am - 6:50 amSAT San Antonio-LHR London Heathrow

15h 28m1 stop Dallas/Fort Worth

10:05 am - 7:22 pmLHR London Heathrow-SAT San Antonio

15h 17m1 stop Dallas/Fort Worth

$870Multiple Airlines

Sun, Nov 8 - Sun, Nov 15

2:56 pm - 8:35 amSAT San Antonio-LHR London Heathrow

11h 39m1 stop Chicago O'Hare Intl

3:40 pm - 11:55 pmLHR London Heathrow-SAT San Antonio

14h 15m1 stop Chicago O'Hare Intl

$1,012British Airways

Wed, Nov 11 - Wed, Nov 18

6:15 am - 6:20 amSAT San Antonio-LHR London Heathrow

18h 05m1 stop Newark

9:00 am - 11:38 pmLHR London Heathrow-SAT San Antonio

20h 38m2 stops Zurich Chicago O'Hare Intl

$1,021United Airlines

Sun, Nov 8 - Sun, Nov 15

11:22 am - 8:15 amSAT San Antonio-LHR London Heathrow

14h 53m1 stop Dallas/Fort Worth

7:30 am - 9:08 pmLHR London Heathrow-SAT San Antonio

19h 38m2 stops Madrid Barajas Dallas/Fort Worth

$1,021Iberia

Sun, Nov 8 - Sun, Nov 15

6:00 am - 7:05 amSAT San Antonio-LHR London Heathrow

19h 05m1 stop Minneapolis St Paul

11:45 am - 12:33 amLHR London Heathrow-SAT San Antonio

18h 48m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,023Delta

Sun, Nov 8 - Sun, Nov 15

10:48 am - 7:55 amSAT San Antonio-LHR London Heathrow

15h 07m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

8:40 am - 9:26 pmLHR London Heathrow-SAT San Antonio

18h 46m2 stops Amsterdam Schiphol Minneapolis St Paul

$1,028Delta

Sun, Nov 8 - Sun, Nov 15

5:34 pm - 9:00 pmSAT San Antonio-LHR London Heathrow

21h 26m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:30 am - 9:26 pmLHR London Heathrow-SAT San Antonio

20h 56m2 stops Frankfurt am Main Houston George Bush Intcntl

$1,030Lufthansa

Sun, Nov 8 - Sun, Nov 15

5:39 pm - 12:00 pmSAT San Antonio-LHR London Heathrow

12h 21m1 stop Charlotte Douglas

10:05 am - 5:02 pmLHR London Heathrow-SAT San Antonio

12h 57m1 stop Dallas/Fort Worth

$1,051British Airways

Sun, Nov 8 - Sun, Nov 15

6:34 am - 5:55 amSAT San Antonio-LHR London Heathrow

17h 21m1 stop Chicago O'Hare Intl

12:05 pm - 7:10 pmLHR London Heathrow-SAT San Antonio

13h 05m1 stop Houston George Bush Intcntl

$1,052United Airlines

Sun, Nov 8 - Sun, Nov 15

11:36 am - 7:45 amSAT San Antonio-LHR London Heathrow

14h 09m1 stop Detroit Metropolitan Wayne County

9:50 am - 9:26 pmLHR London Heathrow-SAT San Antonio

17h 36m1 stop Minneapolis St Paul

$1,052Virgin Atlantic

Sun, Nov 8 - Sun, Nov 15

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Delta flights from San Antonio to London

Our best Delta deals on San Antonio to London flight tickets

Delta

Dec 1

SAT7:38 amSan Antonio

16h 47m

1 stop

LHR6:25 amLondon Heathrow

Dec 8

LHR10:00 amLondon Heathrow

18h 19m

2 stops

SAT10:19 pmSan Antonio

$923

Delta

Dec 30

SAT5:07 amSan Antonio

21h 53m

1 stop

LHR9:00 amLondon Heathrow

Jan 14

LHR6:30 amLondon Heathrow

21h 03m

2 stops

SAT9:33 pmSan Antonio

$927

Delta

Jan 17

SAT4:43 pmSan Antonio

15h 02m

2 stops

LHR1:45 pmLondon Heathrow

Feb 16

LHR10:00 amLondon Heathrow

18h 55m

2 stops

SAT10:55 pmSan Antonio

$940

British Airways flights from San Antonio to London

Our best British Airways deals on San Antonio to London flight tickets

British Airways

Apr 21

SAT5:45 pmSan Antonio

12h 25m

1 stop

LHR12:10 pmLondon Heathrow

Apr 29

LHR12:55 pmLondon Heathrow

14h 04m

1 stop

SAT8:59 pmSan Antonio

$906

British Airways

Jan 17

SAT5:26 pmSan Antonio

12h 49m

1 stop

LHR12:15 pmLondon Heathrow

Feb 16

LHR11:15 amLondon Heathrow

14h 24m

1 stop

SAT7:39 pmSan Antonio

$941

British Airways

Apr 9

SAT5:45 pmSan Antonio

12h 25m

1 stop

LHR12:10 pmLondon Heathrow

Apr 23

LHR8:55 amLondon Heathrow

12h 43m

1 stop

SAT3:38 pmSan Antonio

$974

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Fri 4/9

1:32 pm-10:55 am

1 stop15h 23m

London Heathrow

Fri 4/23

9:45 am-6:42 pm

1 stop14h 57m

$799

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 3/22

7:30 am-6:30 am

2 stops18h 00m

London Heathrow

Wed 4/14

6:50 am-8:10 pm

2 stops19h 20m

$879

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 3/14

6:15 pm-11:40 am

1 stop12h 25m

London Heathrow

Fri 3/19

11:45 am-11:20 pm

2 stops16h 35m

$894

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 3/22

1:25 pm-12:00 pm

1 stop17h 35m

London Heathrow

Wed 4/14

8:45 am-11:08 pm

2 stops20h 23m

$897

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 3/14

8:00 am-8:05 am

2 stops19h 05m

London Heathrow

Fri 3/19

11:45 am-11:20 pm

2 stops16h 35m

$898

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 3/8

5:25 pm-12:00 pm

1 stop12h 35m

London Heathrow

Fri 3/12

6:50 am-11:50 am

2 stops35h 00m

$900

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 3/22

6:15 pm-12:15 pm

1 stop13h 00m

London Heathrow

Wed 4/14

9:30 am-5:44 pm

1 stop14h 14m

$905

Quickest round-trip

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 4/21

5:45 pm-12:10 pm

1 stop12h 25m

London Heathrow

Thu 4/29

12:55 pm-8:59 pm

1 stop14h 04m

$906

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 3/14

6:30 am-7:05 am

1 stop19h 35m

London Heathrow

Fri 3/19

10:50 am-12:28 am

1 stop18h 38m

$928

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 12/2

11:50 am-7:45 am

1 stop13h 55m

London Heathrow

Wed 12/16

4:00 pm-12:35 am

1 stop14h 35m

$953

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Antonio to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between San Antonio and London?

Prices are currently typical for flights on this route.

Typical prices usually range from $727 to $1,107.
The lowest price recently found on this route was $799.

What is the cheapest month to fly to London?

The cheapest month to fly to London from San Antonio is in February. Flight prices, which tend to average around $684, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from San Antonio averaging around $806.

How far in advance should I book a flight from San Antonio to London?

You are more likely to see cheaper flights to London from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $1,018 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from San Antonio for as low as $789 on momondo.

Can stopping save me money on San Antonio to London flights?

You could potentially save up to 4% on your flight if you consider stops on a San Antonio to London flight.

How have San Antonio to London flight prices changed over time?

When to book flights from San Antonio to London

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Antonio to London (SAT to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to London

Best Price Found	$327
Fastest flight time	11h 34m
Direct flights	None

The best one-way flight to London from San Antonio in the past 72 hours is $327. The best round-trip flight deal from San Antonio to London found on momondo in the last 72 hours is $799.

The fastest flight from San Antonio to London takes 11h 34m

There are no direct flights from San Antonio to London. There are no popular flight routes from San Antonio to London.

Search flight deals

Frequently asked questions about flying from San Antonio to London

How far is San Antonio to London by plane?
London is 4985.7 mi away from San Antonio. In terms of flight time, this usually takes a little over 11h 34m.
When did momondo last update prices for flights from San Antonio Airport to London?
Prices for flights from San Antonio Airport to London refresh daily.
How many operators does momondo search for flights from San Antonio Airport to London?
As of November 2026, there are 5 operators available to choose from for flights from San Antonio Airport to London.
How old do you have to be to fly from San Antonio Airport to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Antonio to London?
Based on momondo bookings for flights between San Antonio and London, the leading airline is British Airways, making up 30% of the total bookings. Other popular airlines include United Airlines with 23%, American Airlines with 15%, and Delta with 12%.

Best airlines flying from San Antonio to London

Compare and see reviews for airlines that fly from San Antonio to London with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $596	Free Cancellation	Rating 7.8 8,700 reviews	Search Delta flights
Virgin Atlantic	PriceFrom $646	Free Cancellation	Rating 7.5 697 reviews	Search Virgin Atlantic flights
United Airlines	PriceFrom $658	Free Cancellation	Rating 7.3 10,462 reviews	Search United Airlines flights
British Airways	PriceFrom $724	Free Cancellation	Rating 6.7 8,283 reviews	Search British Airways flights
American Airlines	PriceFrom $892	Free Cancellation	Rating 7.0 12,233 reviews	Search American Airlines flights

Hounslow

Gatwick

Croydon

Hayes

Milton Keynes

Luton

Stansted

Kingston upon Thames

Watford

Richmond

Dover

Wembley

Crawley

Worthing

Harrow

Brentford

Canterbury

Hook

Dunstable

Eastbourne

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to London?

It is quick and easy to find San Antonio to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from San Antonio to London with flexible booking policies on momondo?

All flight searches from San Antonio to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Antonio to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from San Antonio.

I’m not ready to book a flight from San Antonio to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from San Antonio and alert you when they change.

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Cheap flights from San Antonio to London from $327

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to London departing on 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from San Antonio to London

Our best Delta deals on San Antonio to London flight tickets

British Airways flights from San Antonio to London

Our best British Airways deals on San Antonio to London flight tickets

momondo Fare Finder

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See travel insights to London from

How to get the cheapest flight ticket from San Antonio to London

What is the typical price of a round-trip flight between San Antonio and London?

What is the cheapest month to fly to London?

How far in advance should I book a flight from San Antonio to London?

Can stopping save me money on San Antonio to London flights?

How have San Antonio to London flight prices changed over time?

What is the cheapest airline that flies from San Antonio to London?

What airlines fly to London?

Which airport is the most popular layover for flights between San Antonio and London?

Which layover airport offers the lowest fares from San Antonio to London?

Which layover airport has the shortest travel time from San Antonio to London?

Which layover airport has the shortest connection time from San Antonio to London?

When to book flights from San Antonio to London

Cheap San Antonio to London (SAT to LON) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from San Antonio to London

Best airlines flying from San Antonio to London

Compare and see reviews for airlines that fly from San Antonio to London with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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