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.

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 66% 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 airport is the most popular layover for flights between San Antonio and London?

Dallas (DFW) was the most common stop: 52% 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 Lufthansa are the most popular carriers operating from San Antonio to London

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.

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 August 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.

$213 Cheap Flights from San Antonio to London in 2026

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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.

9:51 am - 10:00 am-

18h 09m

2:00 pm - 4:13 pm-

32h 13m

$739Multiple Airlines

Mon, Aug 24 - Tue, Sep 1

12:16 pm - 9:15 am-

38h 59m

12:35 pm - 9:02 am-

26h 27m

$741Multiple Airlines

Sat, Oct 24 - Sun, Nov 1

7:28 am - 11:50 am-

22h 22m

7:30 am - 8:53 pm-

19h 23m

$749United Airlines

Tue, Nov 3 - Thu, Nov 5

7:28 am - 11:50 am-

22h 22m

7:30 am - 8:53 pm-

19h 23m

$750United Airlines

Tue, Nov 3 - Thu, Nov 5

10:45 am - 11:40 am-

18h 55m

10:00 am - 11:20 pm-

19h 20m

$870Delta

Wed, Dec 30 - Wed, Jan 13

10:45 am - 11:40 am-

18h 55m

10:00 am - 11:20 pm-

19h 20m

$871Delta

Wed, Dec 30 - Wed, Jan 13

7:05 pm - 2:25 pm-

13h 20m

4:25 pm - 12:11 am-

13h 46m

$885British Airways

Wed, Sep 30 - Fri, Oct 9

5:00 pm - 11:40 am-

12h 40m

8:20 am - 5:26 pm-

15h 06m

$885British Airways

Sun, Jan 10 - Wed, Jan 13

4:21 pm - 11:20 am-

12h 59m

9:20 am - 5:14 pm-

13h 54m

$905Virgin Atlantic

Mon, Sep 21 - Tue, Oct 6

12:53 pm - 7:15 am-

12h 22m

4:00 pm - 12:28 am-

14h 28m

$936Virgin Atlantic

Wed, Dec 16 - Wed, Dec 23

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Delta flights from San Antonio to London

Our best Delta deals on San Antonio to London flight tickets

Delta

Dec 30

SAT10:45 amSan Antonio

18h 55m

1 stop

LHR11:40 amLondon Heathrow

Jan 13

LHR10:00 amLondon Heathrow

19h 20m

2 stops

SAT11:20 pmSan Antonio

$870

Delta

Dec 30

SAT10:45 amSan Antonio

18h 55m

1 stop

LHR11:40 amLondon Heathrow

Jan 13

LHR10:00 amLondon Heathrow

19h 20m

2 stops

SAT11:20 pmSan Antonio

$872

Delta

Dec 30

SAT6:45 amSan Antonio

18h 20m

2 stops

LHR7:05 amLondon Heathrow

Jan 14

LHR10:00 amLondon Heathrow

18h 27m

2 stops

SAT10:27 pmSan Antonio

$875

British Airways flights from San Antonio to London

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

British Airways

Nov 17

SAT12:45 pmSan Antonio

15h 50m

2 stops

LHR10:35 amLondon Heathrow

Nov 23

LHR6:45 pmLondon Heathrow

19h 49m

2 stops

SAT8:34 amSan Antonio

$891

British Airways

Sep 21

SAT7:05 pmSan Antonio

11h 45m

1 stop

LHR12:50 pmLondon Heathrow

Oct 6

LHR3:15 pmLondon Heathrow

14h 43m

1 stop

SAT11:58 pmSan Antonio

$903

British Airways

Aug 12

SAT7:10 pmSan Antonio

13h 15m

1 stop

LHR2:25 pmLondon Heathrow

Aug 19

LHR10:50 amLondon Heathrow

27h 41m

2 stops

SAT8:31 amSan Antonio

$1,023

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Mon 8/24

9:51 am-10:00 am

1 stop18h 09m

London Gatwick

Tue 9/1

2:00 pm-4:13 pm

2 stops32h 13m

$739

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Sat 10/24

12:16 pm-9:15 am

2 stops38h 59m

London Gatwick

Sun 11/1

12:35 pm-9:02 am

1 stop26h 27m

$741

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 11/3

7:28 am-11:50 am

2 stops22h 22m

London Heathrow

Thu 11/5

7:30 am-8:53 pm

2 stops19h 23m

$749

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 11/3

7:28 am-11:50 am

2 stops22h 22m

London Heathrow

Thu 11/5

7:30 am-8:53 pm

2 stops19h 23m

$750

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 12/30

10:45 am-11:40 am

1 stop18h 55m

London Heathrow

Wed 1/13

10:00 am-11:20 pm

2 stops19h 20m

$870

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 12/30

10:45 am-11:40 am

1 stop18h 55m

London Heathrow

Wed 1/13

10:00 am-11:20 pm

2 stops19h 20m

$871

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 9/30

7:05 pm-2:25 pm

1 stop13h 20m

London Heathrow

Fri 10/9

4:25 pm-12:11 am

1 stop13h 46m

$885

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 1/10

5:00 pm-11:40 am

1 stop12h 40m

London Heathrow

Wed 1/13

8:20 am-5:26 pm

1 stop15h 06m

$885

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 9/21

4:21 pm-11:20 am

1 stop12h 59m

London Heathrow

Tue 10/6

9:20 am-5:14 pm

1 stop13h 54m

$905

Quickest round-trip

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 12/16

12:53 pm-7:15 am

1 stop12h 22m

London Heathrow

Wed 12/23

4:00 pm-12:28 am

1 stop14h 28m

$936

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 $524 to $781.
The lowest price recently found on this route was $741.

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 $690.

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 $900 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 $649 on momondo.

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

You could potentially save up to 8% 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

Fastest flight time	11h 31m
Direct flights	None

The fastest flight from San Antonio to London takes 11h 31m

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 31m.
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 August 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 31% of the total bookings. Other popular airlines include United Airlines with 25%, Virgin Atlantic with 12%, and American Airlines with 11%.

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
United Airlines	PriceFrom $529	Free Cancellation	Rating 7.4 10,059 reviews	Search United Airlines flights
Delta	PriceFrom $530	Free Cancellation	Rating 7.8 8,482 reviews	Search Delta flights
American Airlines	PriceFrom $530	Free Cancellation	Rating 7.1 11,847 reviews	Search American Airlines flights
British Airways	PriceFrom $555	Free Cancellation	Rating 6.7 8,150 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom $600	Free Cancellation	Rating 7.5 694 reviews	Search Virgin Atlantic flights

Hounslow

Gatwick

Milton Keynes

Luton

Hayes

Wembley

Dover

Croydon

Stansted

Kingston upon Thames

Slough

Harrow

Watford

Cobham

Richmond

Uxbridge

Worthing

Romford

Ilford

Dunstable

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 $213

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 8/13. 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

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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

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

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

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