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 16m.

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

Dallas (DFW) was the most common stop: 69% of momondo users choosing 1-stop flights on this route connected there.

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

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

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 Iberia 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 67% of people opting to fly with this airline when traveling to London. Keep in mind that there are 8 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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 April 2026, there are 6 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.

$289 Cheap Flights from San Antonio to London in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $1,170 to $769. The lowest price recently found on this route was $766.

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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.

7:51 pm - 10:00 am

SAT

LGW

32h 09m

2 stops

2:00 pm - 4:14 pm

LGW

SAT

32h 14m

1 stop

$766Multiple Airlines

Mon, Jul 20 - Tue, Sep 1

7:51 pm - 10:00 am

SAT

LGW

32h 09m

2 stops

2:00 pm - 4:14 pm

LGW

SAT

32h 14m

1 stop

$775Multiple Airlines

Mon, Jul 20 - Wed, Sep 2

7:51 pm - 10:00 am

SAT

LGW

32h 09m

2 stops

2:00 pm - 4:14 pm

LGW

SAT

32h 14m

1 stop

$779Multiple Airlines

Wed, Jul 22 - Tue, Sep 1

5:00 pm - 7:40 pm

SAT

LHR

20h 40m

2 stops

9:00 am - 11:08 pm

LHR

SAT

20h 08m

2 stops

$868Lufthansa

Wed, Oct 7 - Wed, Oct 14

7:09 pm - 2:25 pm

SAT

LHR

13h 16m

1 stop

10:50 am - 10:55 pm

LHR

SAT

18h 05m

2 stops

$871Iberia

Wed, Oct 7 - Wed, Oct 14

6:00 am - 7:15 am

SAT

LHR

19h 15m

1 stop

6:50 am - 8:06 pm

LHR

SAT

18h 16m

2 stops

$873United Airlines

Mon, Oct 19 - Wed, Oct 28

12:10 pm - 7:15 am

SAT

LHR

13h 05m

1 stop

6:30 am - 5:09 pm

LHR

SAT

16h 39m

2 stops

$874Delta

Wed, Sep 9 - Tue, Sep 22

7:00 am - 6:30 am

SAT

LHR

17h 30m

2 stops

6:35 am - 8:15 pm

LHR

SAT

19h 40m

2 stops

$877United Airlines

Wed, Oct 7 - Fri, Jan 8

12:15 pm - 10:20 am

SAT

LHR

16h 05m

2 stops

8:40 am - 8:10 pm

LHR

SAT

17h 30m

2 stops

$879Delta

Wed, Sep 9 - Tue, Sep 22

11:50 am - 5:55 pm

SAT

LCY

24h 05m

2 stops

9:15 am - 11:08 pm

LCY

SAT

19h 53m

2 stops

$1,099Lufthansa

Mon, Oct 5 - Wed, Oct 14

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Delta flights from San Antonio to London

Our best Delta deals on San Antonio to London flight tickets

Delta

Aug 9

SAT10:38 amSan Antonio

14h 37m

1 stop

LHR7:15 amLondon Heathrow

Aug 19

LHR8:40 amLondon Heathrow

17h 30m

2 stops

SAT8:10 pmSan Antonio

$874

Delta

Sep 9

SAT12:15 pmSan Antonio

16h 05m

2 stops

LHR10:20 amLondon Heathrow

Sep 22

LHR8:40 amLondon Heathrow

17h 30m

2 stops

SAT8:10 pmSan Antonio

$879

Delta

Aug 9

SAT11:29 amSan Antonio

15h 56m

2 stops

LGW9:25 amLondon Gatwick

Aug 19

LGW10:25 amLondon Gatwick

18h 47m

2 stops

SAT11:12 pmSan Antonio

$886

Air Canada flights from San Antonio to London

Our best Air Canada deals on San Antonio to London flight tickets

Air Canada

Oct 6

SAT9:00 amSan Antonio

18h 35m

1 stop

LHR9:35 amLondon Heathrow

Oct 22

LHR5:15 pmLondon Heathrow

33h 58m

2 stops

SAT9:13 pmSan Antonio

$877

Air Canada

Oct 6

SAT9:00 amSan Antonio

19h 00m

2 stops

LHR10:00 amLondon Heathrow

Oct 22

LHR5:15 pmLondon Heathrow

33h 58m

2 stops

SAT9:13 pmSan Antonio

$880

Air Canada

Aug 11

SAT9:00 amSan Antonio

17h 35m

1 stop

LHR8:35 amLondon Heathrow

Aug 19

LHR2:10 pmLondon Heathrow

26h 48m

2 stops

SAT10:58 amSan Antonio

$883

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Mon 7/20

7:51 pm-10:00 am

2 stops32h 09m

London Gatwick

Tue 9/1

2:00 pm-4:14 pm

1 stop32h 14m

$766

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Mon 7/20

7:51 pm-10:00 am

2 stops32h 09m

London Gatwick

Wed 9/2

2:00 pm-4:14 pm

1 stop32h 14m

$775

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Wed 7/22

7:51 pm-10:00 am

2 stops32h 09m

London Gatwick

Tue 9/1

2:00 pm-4:14 pm

1 stop32h 14m

$779

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 10/7

5:00 pm-7:40 pm

2 stops20h 40m

London Heathrow

Wed 10/14

9:00 am-11:08 pm

2 stops20h 08m

$868

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 10/7

7:09 pm-2:25 pm

1 stop13h 16m

London Heathrow

Wed 10/14

10:50 am-10:55 pm

2 stops18h 05m

$871

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 10/19

6:00 am-7:15 am

1 stop19h 15m

London Heathrow

Wed 10/28

6:50 am-8:06 pm

2 stops18h 16m

$873

Quickest round-trip

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 9/9

12:10 pm-7:15 am

1 stop13h 05m

London Heathrow

Tue 9/22

6:30 am-5:09 pm

2 stops16h 39m

$874

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 10/7

7:00 am-6:30 am

2 stops17h 30m

London Heathrow

Fri 1/8

6:35 am-8:15 pm

2 stops19h 40m

$877

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 9/9

12:15 pm-10:20 am

2 stops16h 05m

London Heathrow

Tue 9/22

8:40 am-8:10 pm

2 stops17h 30m

$879

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Mon 10/5

11:50 am-5:55 pm

2 stops24h 05m

London City

Wed 10/14

9:15 am-11:08 pm

2 stops19h 53m

$1,099

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?

What is the cheapest month to fly to London?

The cheapest month to fly to London from San Antonio is in August. Flight prices, which tend to average around $474, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from San Antonio averaging around $482.

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 $887 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 $608 on momondo.

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

You could potentially save up to 19% 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 38m
Direct flights	None

The fastest flight from San Antonio to London takes 11h 38m

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 38m.
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 April 2026, there are 6 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 47% of the total bookings. Other popular airlines include United Airlines with 17%, Iberia with 10%, and American Airlines with 7%.

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 9,680 reviews	Search United Airlines flights
Delta	PriceFrom $530	Free Cancellation	Rating 7.9 8,467 reviews	Search Delta flights
American Airlines	PriceFrom $530	Free Cancellation	Rating 7.1 11,680 reviews	Search American Airlines flights
British Airways	PriceFrom $556	Free Cancellation	Rating 6.7 7,931 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom $600	Free Cancellation	Rating 7.4 688 reviews	Search Virgin Atlantic flights
Iberia	PriceFrom $611	Free Cancellation	Rating 7.0 3,203 reviews	Search Iberia flights

Hounslow

Gatwick

Milton Keynes

Dover

Luton

Hayes

Crawley

Slough

Wembley

Stansted

Watford

Croydon

Uxbridge

Brentwood

Dartford

Cobham

Folkestone

Romford

Harrow

Guildford

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 $289

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 9/1. 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

Air Canada flights from San Antonio to London

Our best Air Canada deals on San Antonio to London flight tickets

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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

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

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

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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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