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 15m.

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.

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?

Dallas (DFW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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

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

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.

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 September 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.

$332 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

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:05 pm - 2:25 pmSAT San Antonio-LHR London Heathrow

18h 20m1 stop Dallas/Fort Worth

8:55 am - 5:46 pmLHR London Heathrow-SAT San Antonio

14h 51m1 stop Dallas/Fort Worth

$715Finnair

Wed, Oct 14 - Wed, Oct 21

11:22 am - 10:00 amSAT San Antonio-LHR London Heathrow

16h 38m1 stop Dallas/Fort Worth

7:40 pm - 8:29 amLHR London Heathrow-SAT San Antonio

18h 49m2 stops Madrid Barajas Dallas/Fort Worth

$721Iberia

Wed, Nov 4 - Wed, Nov 11

12:46 pm - 10:00 amSAT San Antonio-LHR London Heathrow

16h 14m1 stop Dallas/Fort Worth

7:05 pm - 8:29 amLHR London Heathrow-SAT San Antonio

19h 24m2 stops Madrid Barajas Dallas/Fort Worth

$728British Airways

Tue, Oct 27 - Wed, Nov 4

3:00 pm - 8:15 amSAT San Antonio-LHR London Heathrow

11h 15m1 stop Dallas/Fort Worth

7:30 am - 10:59 pmLHR London Heathrow-SAT San Antonio

21h 29m2 stops Madrid Barajas Dallas/Fort Worth

$729British Airways

Wed, Dec 30 - Thu, Jan 14

2:20 pm - 7:40 amSAT San Antonio-LHR London Heathrow

12h 20m1 stop Houston George Bush Intcntl

1:00 pm - 11:38 pmLHR London Heathrow-SAT San Antonio

40h 38m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$733United Airlines

Mon, Oct 26 - Tue, Nov 10

2:20 pm - 7:40 amSAT San Antonio-LHR London Heathrow

12h 20m1 stop Houston George Bush Intcntl

1:00 pm - 11:38 pmLHR London Heathrow-SAT San Antonio

40h 38m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$734United Airlines

Mon, Oct 26 - Tue, Nov 10

5:30 am - 7:15 amSAT San Antonio-LHR London Heathrow

19h 45m1 stop Atlanta Hartsfield-Jackson

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

18h 48m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$745Delta

Wed, Oct 14 - Wed, Oct 21

1:41 pm - 1:15 pmSAT San Antonio-LHR London Heathrow

17h 34m1 stop Atlanta Hartsfield-Jackson

9:55 am - 11:07 pmLHR London Heathrow-SAT San Antonio

19h 12m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$745Delta

Tue, Oct 13 - Tue, Oct 20

4:45 pm - 3:00 pmSAT San Antonio-LHR London Heathrow

16h 15m1 stop Los Angeles

8:05 pm - 12:18 pmLHR London Heathrow-SAT San Antonio

22h 13m1 stop New York John F Kennedy Intl

$749Virgin Atlantic

Wed, Oct 7 - Thu, Oct 15

4:45 pm - 3:00 pmSAT San Antonio-LHR London Heathrow

16h 15m1 stop Los Angeles

9:20 am - 7:48 pmLHR London Heathrow-SAT San Antonio

16h 28m1 stop Atlanta Hartsfield-Jackson

$749Virgin Atlantic

Wed, Oct 7 - Wed, Oct 14

Cheap last minute flights

Enter your travel dates to find the best prices.

8:50 am - 6:35 amSAT San Antonio-LHR London Heathrow

15h 45m1 stop Toronto Pearson Intl

2:10 pm - 4:31 pmLHR London Heathrow-SAT San Antonio

32h 21m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$742Air Canada

Tue, Sep 22 - Fri, Oct 2

8:50 am - 6:35 amSAT San Antonio-LHR London Heathrow

15h 45m1 stop Toronto Pearson Intl

2:10 pm - 4:31 pmLHR London Heathrow-SAT San Antonio

32h 21m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$743Air Canada

Tue, Sep 22 - Fri, Oct 2

8:50 am - 10:00 amSAT San Antonio-LHR London Heathrow

19h 10m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

5:40 pm - 4:31 pmLHR London Heathrow-SAT San Antonio

28h 51m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$746Air Canada

Tue, Sep 22 - Fri, Oct 2

7:20 am - 5:35 pmSAT San Antonio-LHR London Heathrow

28h 15m1 stop Los Angeles

6:30 am - 7:03 pmLHR London Heathrow-SAT San Antonio

18h 33m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,049Virgin Atlantic

Thu, Sep 17 - Wed, Sep 23

11:36 am - 7:40 amSAT San Antonio-LHR London Heathrow

14h 04m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

6:30 am - 5:10 pmLHR London Heathrow-SAT San Antonio

16h 40m2 stops Amsterdam Schiphol Minneapolis St Paul

$1,086Delta

Thu, Sep 17 - Wed, Sep 23

5:59 pm - 11:35 amSAT San Antonio-LHR London Heathrow

11h 36m1 stop Houston George Bush Intcntl

11:05 am - 10:50 pmLHR London Heathrow-SAT San Antonio

41h 45m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$1,090United Airlines

Sun, Sep 20 - Sat, Sep 26

11:34 am - 11:55 amSAT San Antonio-LHR London Heathrow

18h 21m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

11:05 am - 10:50 pmLHR London Heathrow-SAT San Antonio

41h 45m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$1,095United Airlines

Sun, Sep 20 - Sat, Sep 26

11:36 am - 7:55 amSAT San Antonio-LCY London City

14h 19m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol

10:00 am - 9:22 pmLCY London City-SAT San Antonio

17h 22m2 stops Amsterdam Schiphol Minneapolis St Paul

$1,106Delta

Thu, Sep 17 - Wed, Sep 23

2:15 pm - 11:35 amSAT San Antonio-LHR London Heathrow

15h 20m1 stop Houston George Bush Intcntl

6:50 am - 7:00 pmLHR London Heathrow-SAT San Antonio

18h 10m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$1,221United Airlines

Mon, Sep 21 - Wed, Sep 23

6:10 pm - 1:15 pmSAT San Antonio-LHR London Heathrow

13h 05m1 stop Atlanta Hartsfield-Jackson

6:30 am - 5:01 pmLHR London Heathrow-SAT San Antonio

16h 31m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,352Delta

Sun, Sep 20 - Wed, Sep 23

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Iberia flights from San Antonio to London

Our best Iberia deals on San Antonio to London flight tickets

Iberia

Dec 30

SAT3:00 pmSan Antonio

11h 15m

1 stop

LHR8:15 amLondon Heathrow

Jan 14

LHR7:30 amLondon Heathrow

19h 30m

2 stops

SAT9:00 pmSan Antonio

$721

Iberia

Oct 27

SAT2:05 pmSan Antonio

14h 55m

1 stop

LHR10:00 amLondon Heathrow

Nov 3

LHR8:25 amLondon Heathrow

18h 43m

2 stops

SAT9:08 pmSan Antonio

$722

Iberia

Mar 7

SAT3:00 pmSan Antonio

11h 15m

1 stop

LHR8:15 amLondon Heathrow

Mar 16

LHR6:05 amLondon Heathrow

20h 04m

2 stops

SAT9:09 pmSan Antonio

$726

British Airways flights from San Antonio to London

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

British Airways

Oct 27

SAT12:46 pmSan Antonio

16h 14m

1 stop

LHR10:00 amLondon Heathrow

Nov 4

LHR7:05 pmLondon Heathrow

19h 24m

2 stops

SAT8:29 amSan Antonio

$728

British Airways

Nov 17

SAT2:55 pmSan Antonio

11h 20m

1 stop

LHR8:15 amLondon Heathrow

Nov 23

LHR3:00 pmLondon Heathrow

23h 34m

2 stops

SAT8:34 amSan Antonio

$729

British Airways

Dec 29

SAT8:15 amSan Antonio

21h 25m

1 stop

LHR11:40 amLondon Heathrow

Jan 8

LHR7:30 amLondon Heathrow

19h 30m

2 stops

SAT9:00 pmSan Antonio

$770

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 10/14

2:05 pm-2:25 pm

1 stop18h 20m

London Heathrow

Wed 10/21

8:55 am-5:46 pm

1 stop14h 51m

$715

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 11/4

11:22 am-10:00 am

1 stop16h 38m

London Heathrow

Wed 11/11

7:40 pm-8:29 am

2 stops18h 49m

$721

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Tue 10/27

12:46 pm-10:00 am

1 stop16h 14m

London Heathrow

Wed 11/4

7:05 pm-8:29 am

2 stops19h 24m

$728

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 12/30

3:00 pm-8:15 am

1 stop11h 15m

London Heathrow

Thu 1/14

7:30 am-10:59 pm

2 stops21h 29m

$729

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 10/26

2:20 pm-7:40 am

1 stop12h 20m

London Heathrow

Tue 11/10

1:00 pm-11:38 pm

2 stops40h 38m

$733

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Mon 10/26

2:20 pm-7:40 am

1 stop12h 20m

London Heathrow

Tue 11/10

1:00 pm-11:38 pm

2 stops40h 38m

$734

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 10/14

5:30 am-7:15 am

1 stop19h 45m

London Heathrow

Wed 10/21

11:45 am-12:33 am

2 stops18h 48m

$745

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Tue 10/13

1:41 pm-1:15 pm

1 stop17h 34m

London Heathrow

Tue 10/20

9:55 am-11:07 pm

2 stops19h 12m

$745

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 10/7

4:45 pm-3:00 pm

1 stop16h 15m

London Heathrow

Thu 10/15

8:05 pm-12:18 pm

1 stop22h 13m

$749

Quickest round-trip

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 10/7

4:45 pm-3:00 pm

1 stop16h 15m

London Heathrow

Wed 10/14

9:20 am-7:48 pm

1 stop16h 28m

$749

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 $525 to $1,010.
The lowest price recently found on this route was $715.

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 November is another great option to travel to London, with average flight prices from San Antonio averaging around $727.

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 $990 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 $679 on momondo.

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

You could potentially save up to 24% 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	$332
Fastest flight time	11h 15m
Direct flights	None

The best one-way flight to London from San Antonio in the past 72 hours is $332. The best round-trip flight deal from San Antonio to London found on momondo in the last 72 hours is $715.

The fastest flight from San Antonio to London takes 11h 15m

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 15m.
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 September 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 32% of the total bookings. Other popular airlines include United Airlines with 24%, American Airlines with 15%, and Virgin Atlantic 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 $530	Free Cancellation	Rating 7.8 8,571 reviews	Search Delta flights
United Airlines	PriceFrom $531	Free Cancellation	Rating 7.4 10,215 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom $600	Free Cancellation	Rating 7.4 694 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom $676	Free Cancellation	Rating 6.7 8,229 reviews	Search British Airways flights
American Airlines	PriceFrom $892	Free Cancellation	Rating 7.1 12,063 reviews	Search American Airlines flights

Hounslow

Gatwick

Milton Keynes

Hayes

Luton

Wembley

Dover

Croydon

Richmond

Kingston upon Thames

Stansted

Harrow

Cobham

Watford

Worthing

Slough

Eastbourne

Hook

Uxbridge

Ilford

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 $332

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 1/4. 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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Iberia flights from San Antonio to London

Our best Iberia 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

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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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According to popular flight searches on momondo this year

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