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Cheap flights from San Antonio to London from £214

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 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from San Antonio to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:00 - 06:30
SAT
-
LHR
17h 30m
2 stops
Multiple Airlines Logo
20:05 - 21:13
LHR
-
SAT
31h 08m
2 stops
£614Multiple Airlines
Wed, 7 Oct - Thu, 8 Oct
Multiple Airlines Logo
07:35 - 06:30
SAT
-
LHR
16h 55m
3 stops
Multiple Airlines Logo
20:05 - 21:13
LHR
-
SAT
31h 08m
2 stops
£620Multiple Airlines
Wed, 7 Oct - Thu, 8 Oct
Lufthansa Logo
12:10 - 16:40
SAT
-
LHR
22h 30m
2 stops
Lufthansa Logo
13:30 - 17:39
LHR
-
SAT
34h 09m
2 stops
£629Lufthansa
Sat, 26 Sep - Mon, 28 Sep
Lufthansa Logo
17:00 - 19:40
SAT
-
LHR
20h 40m
2 stops
Lufthansa Logo
09:00 - 23:08
LHR
-
SAT
20h 08m
2 stops
£643Lufthansa
Wed, 7 Oct - Wed, 14 Oct
Iberia Logo
19:09 - 14:25
SAT
-
LHR
13h 16m
1 stop
Iberia Logo
10:50 - 22:55
LHR
-
SAT
18h 05m
2 stops
£645Iberia
Wed, 7 Oct - Wed, 14 Oct
Delta Logo
14:10 - 07:15
SAT
-
LHR
11h 05m
1 stop
Delta Logo
06:30 - 22:27
LHR
-
SAT
21h 57m
2 stops
£648Delta
Wed, 14 Oct - Wed, 21 Oct
Delta Logo
17:30 - 11:20
SAT
-
LHR
11h 50m
1 stop
Delta Logo
11:45 - 00:15
LHR
-
SAT
18h 30m
2 stops
£648Delta
Wed, 23 Sep - Thu, 1 Oct
United Airlines Logo
07:00 - 06:30
SAT
-
LHR
17h 30m
2 stops
United Airlines Logo
06:35 - 20:15
LHR
-
SAT
19h 40m
2 stops
£650United Airlines
Wed, 7 Oct - Fri, 8 Jan
Delta Logo
16:00 - 07:10
SAT
-
LHR
33h 10m
1 stop
Delta Logo
09:55 - 22:15
LHR
-
SAT
18h 20m
2 stops
£651Delta
Sat, 26 Sep - Fri, 2 Oct
Delta Logo
16:00 - 07:10
SAT
-
LHR
33h 10m
1 stop
Delta Logo
11:45 - 00:15
LHR
-
SAT
18h 30m
2 stops
£652Delta
Sat, 26 Sep - Tue, 29 Sep

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Scandinavian Airlines flights from San Antonio to London

Our best Scandinavian Airlines deals on San Antonio to London flight tickets
Scandinavian Airlines
19 Aug
SAT12:10San Antonio
27h 25m
3 stops
LHR21:35London Heathrow
31 Aug
LHR10:20London Heathrow
18h 58m
2 stops
SAT23:18San Antonio
£656
Scandinavian Airlines
19 Aug
SAT12:10San Antonio
27h 25m
3 stops
LHR21:35London Heathrow
31 Aug
LHR07:05London Heathrow
22h 13m
3 stops
SAT23:18San Antonio
£659
Scandinavian Airlines
21 Aug
SAT12:15San Antonio
39h 05m
2 stops
LHR09:20London Heathrow
29 Aug
LHR06:40London Heathrow
22h 38m
2 stops
SAT23:18San Antonio
£662

British Airways flights from San Antonio to London

Our best British Airways deals on San Antonio to London flight tickets
British Airways
12 Aug
SAT13:22San Antonio
11h 28m
1 stop
LHR06:50London Heathrow
19 Aug
LHR14:25London Heathrow
12h 47m
1 stop
SAT21:12San Antonio
£666
British Airways
12 Aug
SAT16:21San Antonio
13h 49m
1 stop
LHR12:10London Heathrow
19 Aug
LHR08:55London Heathrow
12h 56m
1 stop
SAT15:51San Antonio
£667
British Airways
19 Aug
SAT10:59San Antonio
16h 01m
1 stop
LHR09:00London Heathrow
31 Aug
LHR20:00London Heathrow
29h 26m
2 stops
SAT19:26San Antonio
£676

momondo Fare Finder

 
Customise your flight search to find flights from San Antonio to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 25 April 2026.
Use the filters below to find and compare flights from San Antonio to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 7/10

07:00-06:30

2 stops17h 30m

London Heathrow

Thu 8/10

20:05-21:13

2 stops31h 08m

£614

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 7/10

07:35-06:30

3 stops16h 55m

London Heathrow

Thu 8/10

20:05-21:13

2 stops31h 08m

£620

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 26/9

12:10-16:40

2 stops22h 30m

London Heathrow

Mon 28/9

13:30-17:39

2 stops34h 09m

£629

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 7/10

17:00-19:40

2 stops20h 40m

London Heathrow

Wed 14/10

09:00-23:08

2 stops20h 08m

£643

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 7/10

19:09-14:25

1 stop13h 16m

London Heathrow

Wed 14/10

10:50-22:55

2 stops18h 05m

£645

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 14/10

14:10-07:15

1 stop11h 05m

London Heathrow

Wed 21/10

06:30-22:27

2 stops21h 57m

£648
Fastest return journey

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 23/9

17:30-11:20

1 stop11h 50m

London Heathrow

Thu 1/10

11:45-00:15

2 stops18h 30m

£648

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 7/10

07:00-06:30

2 stops17h 30m

London Heathrow

Fri 8/1

06:35-20:15

2 stops19h 40m

£650

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 26/9

16:00-07:10

1 stop33h 10m

London Heathrow

Fri 2/10

09:55-22:15

2 stops18h 20m

£651

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 26/9

16:00-07:10

1 stop33h 10m

London Heathrow

Tue 29/9

11:45-00:15

2 stops18h 30m

£652

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

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

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 February. Flight prices, which tend to average around £472, 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 £496.

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 £657 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 £450 on momondo.

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

You could potentially save up to 31% 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 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 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?

    There are 4985.7 mi between San Antonio and London. Typically, this will take 11h 38m 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Slough
Maidstone
Wembley
Southend-on-Sea
Ipswich
Canterbury
Ilford
Guildford
Hayes
Dover
Chelmsford
Folkestone
Chichester
Bedford
Ramsgate
Harlow

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.

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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
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport