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

British Airways, Air Canada, and United Airlines 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 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 necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£162 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 £459 to £542. The lowest price recently found on this route was £376.

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Find the cheapest flights from San Antonio to London

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

13:57 - 10:00

SAT

LGW

14h 03m

1 stop

14:00 - 13:12

LGW

SAT

29h 12m

1 stop

£376Multiple Airlines

Fri, 13 Feb - Thu, 26 Feb

13:57 - 10:00

SAT

LGW

14h 03m

1 stop

14:00 - 23:59

LGW

SAT

15h 59m

1 stop

£390Multiple Airlines

Fri, 13 Feb - Mon, 2 Mar

17:25 - 17:05

SAT

LHR

17h 40m

2 stops

07:40 - 23:12

LHR

SAT

21h 32m

2 stops

£443Lufthansa

Mon, 23 Feb - Mon, 2 Mar

17:25 - 19:35

SAT

LHR

20h 10m

2 stops

08:30 - 20:28

LHR

SAT

17h 58m

2 stops

£451Lufthansa

Mon, 23 Feb - Mon, 2 Mar

12:45 - 09:10

SAT

LHR

14h 25m

1 stop

07:40 - 20:28

LHR

SAT

18h 48m

2 stops

£459United Airlines

Mon, 23 Feb - Mon, 2 Mar

08:00 - 06:25

SAT

LHR

16h 25m

1 stop

08:40 - 21:57

LHR

SAT

19h 17m

2 stops

£459Delta

Sun, 22 Feb - Sat, 7 Mar

11:53 - 10:15

SAT

LHR

17h 22m

1 stop

06:35 - 20:53

LHR

SAT

19h 18m

2 stops

£461United Airlines

Wed, 18 Mar - Wed, 25 Mar

10:57 - 07:50

SAT

LHR

14h 53m

1 stop

06:30 - 17:22

LHR

SAT

16h 52m

2 stops

£462Delta

Thu, 26 Feb - Thu, 5 Mar

15:08 - 14:05

SAT

LCY

16h 57m

2 stops

07:50 - 23:56

LCY

SAT

21h 06m

2 stops

£581British Airways

Wed, 4 Mar - Wed, 11 Mar

09:20 - 08:50

SAT

LCY

17h 30m

2 stops

07:50 - 19:56

LCY

SAT

18h 06m

2 stops

£605British Airways

Wed, 25 Feb - Wed, 4 Mar

Lufthansa flights from San Antonio to London

Our best Lufthansa deals on San Antonio to London flight tickets

Lufthansa

23 Feb

SAT17:25San Antonio

17h 40m

2 stops

LHR17:05London Heathrow

2 Mar

LHR07:40London Heathrow

21h 32m

2 stops

SAT23:12San Antonio

£443

Lufthansa

12 May

SAT17:29San Antonio

17h 36m

2 stops

LHR17:05London Heathrow

20 May

LHR07:25London Heathrow

21h 29m

2 stops

SAT22:54San Antonio

£456

Lufthansa

25 Feb

SAT14:10San Antonio

18h 35m

2 stops

LHR14:45London Heathrow

4 Mar

LHR06:30London Heathrow

22h 42m

2 stops

SAT23:12San Antonio

£458

United Airlines flights from San Antonio to London

Our best United Airlines deals on San Antonio to London flight tickets

United Airlines

23 Feb

SAT12:45San Antonio

14h 25m

1 stop

LHR09:10London Heathrow

2 Mar

LHR07:40London Heathrow

18h 48m

2 stops

SAT20:28San Antonio

£459

United Airlines

10 Mar

SAT09:52San Antonio

16h 38m

1 stop

LHR07:30London Heathrow

17 Mar

LHR06:35London Heathrow

35h 38m

2 stops

SAT13:13San Antonio

£461

United Airlines

25 Feb

SAT12:17San Antonio

14h 53m

2 stops

LHR09:10London Heathrow

4 Mar

LHR06:35London Heathrow

19h 53m

2 stops

SAT20:28San Antonio

£462

Fly from

Fly to

Route

Depart

Return

Price

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Fri 13/2

13:57-10:00

1 stop14h 03m

London Gatwick

Thu 26/2

14:00-13:12

1 stop29h 12m

£376

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Fri 13/2

13:57-10:00

1 stop14h 03m

London Gatwick

Mon 2/3

14:00-23:59

1 stop15h 59m

£390

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 23/2

17:25-17:05

2 stops17h 40m

London Heathrow

Mon 2/3

07:40-23:12

2 stops21h 32m

£443

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 23/2

17:25-19:35

2 stops20h 10m

London Heathrow

Mon 2/3

08:30-20:28

2 stops17h 58m

£451

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 23/2

12:45-09:10

1 stop14h 25m

London Heathrow

Mon 2/3

07:40-20:28

2 stops18h 48m

£459

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 22/2

08:00-06:25

1 stop16h 25m

London Heathrow

Sat 7/3

08:40-21:57

2 stops19h 17m

£459

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 18/3

11:53-10:15

1 stop17h 22m

London Heathrow

Wed 25/3

06:35-20:53

2 stops19h 18m

£461

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Thu 26/2

10:57-07:50

1 stop14h 53m

London Heathrow

Thu 5/3

06:30-17:22

2 stops16h 52m

£462

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Wed 4/3

15:08-14:05

2 stops16h 57m

London City

Wed 11/3

07:50-23:56

2 stops21h 06m

£581

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Wed 25/2

09:20-08:50

2 stops17h 30m

London City

Wed 4/3

07:50-19:56

2 stops18h 06m

£605

Flights are sorted by cheapest return 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

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 September. Flight prices, which tend to average around £510, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from San Antonio averaging around £527.

How far in advance should I book a flight 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 £637 when searching weeks before you fly. 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 £496 on momondo.

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

You could potentially save up to 42% 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?

As of January 2026, prices for San Antonio to London flights are approximately 36% more expensive when compared to flights at the same time last year.

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 return 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 10m
Direct flights	None

The fastest flight from San Antonio to London takes 12h 10m

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

Search flight deals

How far is San Antonio to London by plane?
There are 4985.7 mi between San Antonio and London. Typically, this will take 12h 10m by plane in normal conditions.
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 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 necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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 Virgin Atlantic, making up 100% of the total bookings.

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Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

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Folkestone

Worthing

Colchester

Bedford

Ramsgate

Chichester

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?

Yes. momondo enables you to select and highlight flights to London from San Antonio with this policy.

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

Once all potential San Antonio to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of San Antonio to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.