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

Iberia and Delta 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.

£167 Cheap Flights from San Antonio to London in 2025/26

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 £573 to £1,056. The lowest price recently found on this route was £387.

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Find the cheapest flights from San Antonio to London

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06:30 - 10:00

SAT

LGW

21h 30m1 stop

14:00 - 23:52

LGW

SAT

15h 52m1 stop

£387Multiple Airlines

Fri, 16 Jan - Fri, 23 Jan

06:30 - 10:00

SAT

LGW

21h 30m1 stop

14:00 - 23:52

LGW

SAT

15h 52m1 stop

£393Multiple Airlines

Fri, 16 Jan - Fri, 23 Jan

06:30 - 10:00

SAT

LGW

21h 30m1 stop

14:00 - 23:52

LGW

SAT

15h 52m1 stop

£411Multiple Airlines

Fri, 23 Jan - Fri, 30 Jan

06:30 - 10:00

SAT

LGW

21h 30m1 stop

14:00 - 09:40

LGW

SAT

49h 40m2 stops

£418Multiple Airlines

Fri, 16 Jan - Fri, 23 Jan

10:57 - 18:30

SAT

LHR

25h 33m2 stops

06:40 - 00:34

LHR

SAT

23h 54m2 stops

£451Scandinavian Airlines

Mon, 2 Mar - Sat, 7 Mar

10:57 - 16:25

SAT

LHR

23h 28m3 stops

06:40 - 00:34

LHR

SAT

23h 54m2 stops

£454Scandinavian Airlines

Mon, 2 Mar - Sat, 7 Mar

13:40 - 09:00

SAT

LHR

13h 20m1 stop

12:30 - 20:25

LHR

SAT

13h 55m1 stop

£464Virgin Atlantic

Wed, 21 Jan - Wed, 28 Jan

18:17 - 11:40

SAT

LHR

11h 23m1 stop

06:30 - 17:22

LHR

SAT

16h 52m2 stops

£465KLM

Wed, 21 Jan - Wed, 28 Jan

12:55 - 08:05

SAT

LHR

13h 10m1 stop

06:20 - 00:38

LHR

SAT

24h 18m2 stops

£470Air France

Fri, 23 Jan - Fri, 30 Jan

10:45 - 07:40

SAT

LHR

14h 55m2 stops

06:30 - 17:22

LHR

SAT

16h 52m2 stops

£473KLM

Wed, 21 Jan - Wed, 28 Jan

British Airways flights from San Antonio to London

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

British Airways

10 Mar

SAT13:40San Antonio

17h 35m

1 stop

LHR12:15London Heathrow

17 Mar

LHR19:15London Heathrow

29h 10m

2 stops

SAT19:25San Antonio

£483

Find similar

British Airways

9 Mar

SAT17:41San Antonio

12h 59m

1 stop

LHR11:40London Heathrow

18 Mar

LHR11:45London Heathrow

14h 05m

1 stop

SAT20:50San Antonio

£489

Find similar

British Airways

9 Mar

SAT17:41San Antonio

12h 59m

1 stop

LHR11:40London Heathrow

13 Mar

LHR10:15London Heathrow

18h 44m

1 stop

SAT23:59San Antonio

£498

Find similar

Delta flights from San Antonio to London

Our best Delta deals on San Antonio to London flight tickets

Delta

7 Jan

SAT12:25San Antonio

13h 25m

1 stop

LHR07:50London Heathrow

14 Jan

LHR08:40London Heathrow

20h 15m

2 stops

SAT22:55San Antonio

£472

Find similar

Delta

7 Jan

SAT07:45San Antonio

17h 20m

2 stops

LHR07:05London Heathrow

14 Jan

LHR08:40London Heathrow

18h 03m

2 stops

SAT20:43San Antonio

£475

Find similar

Delta

10 Mar

SAT10:46San Antonio

16h 19m

2 stops

LHR08:05London Heathrow

17 Mar

LHR06:20London Heathrow

20h 27m

2 stops

SAT21:47San Antonio

£532

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Fri 16/1

06:30-10:00

1 stop21h 30m

London Gatwick

Fri 23/1

14:00-23:52

1 stop15h 52m

£387

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Fri 16/1

06:30-10:00

1 stop21h 30m

London Gatwick

Fri 23/1

14:00-23:52

1 stop15h 52m

£393

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Fri 23/1

06:30-10:00

1 stop21h 30m

London Gatwick

Fri 30/1

14:00-23:52

1 stop15h 52m

£411

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Fri 16/1

06:30-10:00

1 stop21h 30m

London Gatwick

Fri 23/1

14:00-09:40

2 stops49h 40m

£418

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 2/3

10:57-18:30

2 stops25h 33m

London Heathrow

Sat 7/3

06:40-00:34

2 stops23h 54m

£451

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 2/3

10:57-16:25

3 stops23h 28m

London Heathrow

Sat 7/3

06:40-00:34

2 stops23h 54m

£454

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 21/1

13:40-09:00

1 stop13h 20m

London Heathrow

Wed 28/1

12:30-20:25

1 stop13h 55m

£464

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 21/1

18:17-11:40

1 stop11h 23m

London Heathrow

Wed 28/1

06:30-17:22

2 stops16h 52m

£465

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 23/1

12:55-08:05

1 stop13h 10m

London Heathrow

Fri 30/1

06:20-00:38

2 stops24h 18m

£470

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 21/1

10:45-07:40

2 stops14h 55m

London Heathrow

Wed 28/1

06:30-17:22

2 stops16h 52m

£473

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 £538, 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 £544.

What is the cheapest day to depart on your flight to London?

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £568. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from San Antonio to London for around £643.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £573. Flights at midday are often more expensive, with an average ticket price of £602.

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 £709 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 £511 on momondo.

How have San Antonio to London flight prices changed over time?

As of December 2025, prices for San Antonio to London flights are approximately 20% 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	11h 26m
Direct flights	None

The fastest flight from San Antonio to London takes 11h 26m

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 11h 25m 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.

Eastbourne

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Luton

Gatwick

Maidstone

Slough

Canterbury

Southend-on-Sea

Ipswich

Ilford

Guildford

Hayes

Chelmsford

Dover

Worthing

Colchester

Bedford

Ramsgate

Hounslow

Stansted

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.