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

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

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: 58% 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.

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 June 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.

$279 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 $1,613 to $1,172. The lowest price recently found on this route was $755.

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.

2:01 pm - 12:00 pm

SAT

LHR

15h 59m

1 stop

9:30 am - 9:07 pm

LHR

SAT

17h 37m

2 stops

$755United Airlines

Sun, Dec 6 - Tue, Dec 8

7:00 am - 9:20 pm

SAT

LHR

32h 20m

1 stop

5:30 pm - 9:07 pm

LHR

SAT

33h 37m

2 stops

$760United Airlines

Sat, Nov 7 - Mon, Nov 9

4:20 pm - 8:35 pm

SAT

LHR

22h 15m

2 stops

9:30 am - 9:07 pm

LHR

SAT

17h 37m

2 stops

$833United Airlines

Sun, Dec 6 - Tue, Dec 8

4:10 pm - 5:40 pm

SAT

LHR

19h 30m

2 stops

6:40 am - 12:28 am

LHR

SAT

23h 48m

3 stops

$842Scandinavian Airlines

Sat, Nov 7 - Mon, Nov 9

12:55 pm - 8:15 am

SAT

LHR

13h 20m

1 stop

7:40 pm - 8:24 am

LHR

SAT

18h 44m

2 stops

$869Iberia

Tue, Nov 17 - Mon, Nov 23

6:15 pm - 11:40 am

SAT

LHR

12h 25m

1 stop

8:40 am - 9:32 pm

LHR

SAT

18h 52m

2 stops

$871Delta

Mon, Oct 26 - Tue, Nov 10

2:00 pm - 7:05 am

SAT

LHR

12h 05m

1 stop

11:45 am - 12:28 am

LHR

SAT

18h 43m

2 stops

$872Delta

Tue, Oct 27 - Wed, Nov 4

9:32 am - 10:40 am

SAT

LGW

19h 08m

2 stops

12:20 pm - 11:59 pm

LGW

SAT

17h 39m

2 stops

$918American Airlines

Thu, Sep 17 - Tue, Oct 6

4:12 pm - 5:55 pm

SAT

LCY

19h 43m

2 stops

9:15 am - 9:16 pm

LCY

SAT

18h 01m

2 stops

$1,173Lufthansa

Wed, Aug 12 - Wed, Aug 19

5:27 pm - 5:55 pm

SAT

LCY

18h 28m

2 stops

9:15 am - 8:38 pm

LCY

SAT

17h 23m

2 stops

$1,264Lufthansa

Wed, Sep 2 - Mon, Sep 14

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Air Canada flights from San Antonio to London

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

Air Canada

Dec 6

SAT6:40 amSan Antonio

18h 30m

2 stops

LHR7:10 amLondon Heathrow

Dec 8

LHR1:00 pmLondon Heathrow

29h 10m

2 stops

SAT12:10 pmSan Antonio

$884

Air Canada

Oct 1

SAT4:17 pmSan Antonio

32h 13m

2 stops

LHR6:30 amLondon Heathrow

Oct 29

LHR6:30 amLondon Heathrow

16h 03m

2 stops

SAT5:33 pmSan Antonio

$893

Air Canada

Sep 30

SAT12:10 pmSan Antonio

14h 25m

2 stops

LHR8:35 amLondon Heathrow

Nov 4

LHR1:00 pmLondon Heathrow

27h 48m

2 stops

SAT10:48 amSan Antonio

$895

Lufthansa flights from San Antonio to London

Our best Lufthansa deals on San Antonio to London flight tickets

Lufthansa

Oct 27

SAT2:15 pmSan Antonio

17h 35m

2 stops

LHR12:50 pmLondon Heathrow

Nov 4

LHR6:30 amLondon Heathrow

20h 43m

2 stops

SAT9:13 pmSan Antonio

$886

Lufthansa

Sep 23

SAT1:45 pmSan Antonio

21h 55m

2 stops

LHR5:40 pmLondon Heathrow

Oct 5

LHR6:30 pmLondon Heathrow

33h 01m

2 stops

SAT9:31 pmSan Antonio

$906

Lufthansa

Jun 26

SAT5:32 pmSan Antonio

19h 08m

2 stops

LHR6:40 pmLondon Heathrow

Jul 3

LHR7:25 amLondon Heathrow

21h 32m

2 stops

SAT10:57 pmSan Antonio

$1,710

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 12/6

2:01 pm-12:00 pm

1 stop15h 59m

London Heathrow

Tue 12/8

9:30 am-9:07 pm

2 stops17h 37m

$755

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 11/7

7:00 am-9:20 pm

1 stop32h 20m

London Heathrow

Mon 11/9

5:30 pm-9:07 pm

2 stops33h 37m

$760

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 12/6

4:20 pm-8:35 pm

2 stops22h 15m

London Heathrow

Tue 12/8

9:30 am-9:07 pm

2 stops17h 37m

$833

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 11/7

4:10 pm-5:40 pm

2 stops19h 30m

London Heathrow

Mon 11/9

6:40 am-12:28 am

3 stops23h 48m

$842

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 11/17

12:55 pm-8:15 am

1 stop13h 20m

London Heathrow

Mon 11/23

7:40 pm-8:24 am

2 stops18h 44m

$869

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 10/26

6:15 pm-11:40 am

1 stop12h 25m

London Heathrow

Tue 11/10

8:40 am-9:32 pm

2 stops18h 52m

$871

Quickest round-trip

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 10/27

2:00 pm-7:05 am

1 stop12h 05m

London Heathrow

Wed 11/4

11:45 am-12:28 am

2 stops18h 43m

$872

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Thu 9/17

9:32 am-10:40 am

2 stops19h 08m

London Gatwick

Tue 10/6

12:20 pm-11:59 pm

2 stops17h 39m

$918

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Wed 8/12

4:12 pm-5:55 pm

2 stops19h 43m

London City

Wed 8/19

9:15 am-9:16 pm

2 stops18h 01m

$1,173

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Wed 9/2

5:27 pm-5:55 pm

2 stops18h 28m

London City

Mon 9/14

9:15 am-8:38 pm

2 stops17h 23m

$1,264

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 $890 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 $639 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

Fastest flight time	12h 12m
Direct flights	None

The fastest flight from San Antonio to London takes 12h 12m

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

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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 12h 12m.
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 June 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 42% of the total bookings. Other popular airlines include United Airlines with 22%, Delta with 9%, and Virgin Atlantic with 9%.

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 9,824 reviews	Search United Airlines flights
Delta	PriceFrom $530	Free Cancellation	Rating 7.9 8,401 reviews	Search Delta flights
American Airlines	PriceFrom $530	Free Cancellation	Rating 7.1 11,664 reviews	Search American Airlines flights
British Airways	PriceFrom $556	Free Cancellation	Rating 6.7 8,049 reviews	Search British Airways flights
Virgin Atlantic	PriceFrom $600	Free Cancellation	Rating 7.5 690 reviews	Search Virgin Atlantic flights

Hounslow

Gatwick

Milton Keynes

Luton

Dover

Hayes

Crawley

Croydon

Wembley

Stansted

Harrow

Slough

Brentwood

Watford

Cobham

Guildford

Folkestone

Uxbridge

Romford

Chelmsford

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 $279

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 7/14. 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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Air Canada flights from San Antonio to London

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

Lufthansa flights from San Antonio to London

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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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