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Cheap flights from San Antonio to London from £150

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 24/3. 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
1 adult, Economy, 0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:22 - 10:00
SAT
-
LGW
14h 38m
1 stop
Multiple Airlines Logo
14:00 - 13:17
LGW
-
SAT
29h 17m
1 stop
£486Multiple Airlines
Thu, 2 Apr - Wed, 29 Apr
Scandinavian Airlines Logo
14:10 - 09:20
SAT
-
LHR
37h 10m
2 stops
Scandinavian Airlines Logo
06:40 - 23:18
LHR
-
SAT
22h 38m
2 stops
£507Scandinavian Airlines
Fri, 4 Sep - Mon, 7 Sep
Scandinavian Airlines Logo
12:15 - 09:20
SAT
-
LHR
39h 05m
2 stops
Scandinavian Airlines Logo
06:40 - 23:18
LHR
-
SAT
22h 38m
2 stops
£508Scandinavian Airlines
Fri, 4 Sep - Mon, 7 Sep
Lufthansa Logo
17:24 - 17:40
SAT
-
LHR
18h 16m
2 stops
Lufthansa Logo
19:30 - 21:16
LHR
-
SAT
31h 46m
2 stops
£552Lufthansa
Wed, 12 Aug - Wed, 19 Aug
Iberia Logo
13:19 - 07:40
SAT
-
LHR
12h 21m
1 stop
Iberia Logo
08:55 - 19:44
LHR
-
SAT
16h 49m
1 stop
£560Iberia
Mon, 20 Apr - Sun, 26 Apr
British Airways Logo
17:35 - 14:25
SAT
-
LHR
14h 50m
1 stop
British Airways Logo
14:25 - 23:40
LHR
-
SAT
15h 15m
1 stop
£563British Airways
Wed, 22 Jul - Fri, 21 Aug
American Airlines Logo
14:10 - 07:50
SAT
-
LHR
11h 40m
1 stop
American Airlines Logo
14:25 - 23:40
LHR
-
SAT
15h 15m
1 stop
£566American Airlines
Wed, 22 Jul - Fri, 21 Aug
Iberia Logo
19:08 - 14:25
SAT
-
LHR
13h 17m
1 stop
Iberia Logo
14:25 - 21:17
LHR
-
SAT
12h 52m
1 stop
£567Iberia
Tue, 28 Jul - Tue, 13 Oct
Lufthansa Logo
17:18 - 16:40
SAT
-
LHR
17h 22m
2 stops
Lufthansa Logo
06:30 - 23:08
LHR
-
SAT
22h 38m
2 stops
£572Lufthansa
Mon, 27 Jul - Tue, 20 Oct
British Airways Logo
10:00 - 08:35
SAT
-
LCY
16h 35m
2 stops
British Airways Logo
09:50 - 22:00
LCY
-
SAT
42h 10m
2 stops
£741British Airways
Wed, 22 Jul - Fri, 21 Aug

Scandinavian Airlines flights from San Antonio to London

Our best Scandinavian Airlines deals on San Antonio to London flight tickets
Scandinavian Airlines
4 Sept
SAT14:10San Antonio
37h 10m
2 stops
LHR09:20London Heathrow
7 Sept
LHR06:40London Heathrow
22h 38m
2 stops
SAT23:18San Antonio
£507
Scandinavian Airlines
4 Sept
SAT12:15San Antonio
39h 05m
2 stops
LHR09:20London Heathrow
7 Sept
LHR06:40London Heathrow
22h 38m
2 stops
SAT23:18San Antonio
£508
Scandinavian Airlines
21 Aug
SAT14:10San Antonio
37h 10m
2 stops
LHR09:20London Heathrow
29 Aug
LHR06:40London Heathrow
22h 38m
2 stops
SAT23:18San Antonio
£555

Air Canada flights from San Antonio to London

Our best Air Canada deals on San Antonio to London flight tickets
Air Canada
1 Sept
SAT05:30San Antonio
19h 00m
2 stops
LHR06:30London Heathrow
30 Sept
LHR09:30London Heathrow
37h 00m
2 stops
SAT16:30San Antonio
£591
Air Canada
17 Mar
SAT05:00San Antonio
21h 10m
2 stops
LHR07:10London Heathrow
26 Mar
LHR13:25London Heathrow
30h 39m
2 stops
SAT15:04San Antonio
£838
Air Canada
17 Mar
SAT07:15San Antonio
18h 55m
2 stops
LHR07:10London Heathrow
29 Mar
LHR14:05London Heathrow
32h 04m
2 stops
SAT16:09San Antonio
£874

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 14 March 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 - LGW

SATLGW

San Antonio

Thu 2/4

13:22-10:00

1 stop14h 38m

London Gatwick

Wed 29/4

14:00-13:17

1 stop29h 17m

£486

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 4/9

14:10-09:20

2 stops37h 10m

London Heathrow

Mon 7/9

06:40-23:18

2 stops22h 38m

£507

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 4/9

12:15-09:20

2 stops39h 05m

London Heathrow

Mon 7/9

06:40-23:18

2 stops22h 38m

£508

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 12/8

17:24-17:40

2 stops18h 16m

London Heathrow

Wed 19/8

19:30-21:16

2 stops31h 46m

£552

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 20/4

13:19-07:40

1 stop12h 21m

London Heathrow

Sun 26/4

08:55-19:44

1 stop16h 49m

£560

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 22/7

17:35-14:25

1 stop14h 50m

London Heathrow

Fri 21/8

14:25-23:40

1 stop15h 15m

£563

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 22/7

14:10-07:50

1 stop11h 40m

London Heathrow

Fri 21/8

14:25-23:40

1 stop15h 15m

£566
Fastest return journey

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 28/7

19:08-14:25

1 stop13h 17m

London Heathrow

Tue 13/10

14:25-21:17

1 stop12h 52m

£567

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 27/7

17:18-16:40

2 stops17h 22m

London Heathrow

Tue 20/10

06:30-23:08

2 stops22h 38m

£572

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Wed 22/7

10:00-08:35

2 stops16h 35m

London City

Fri 21/8

09:50-22:00

2 stops42h 10m

£741

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 £480, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from San Antonio averaging around £528.

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 £656 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 £474 on momondo.

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

You could potentially save up to 60% 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

12h 54m

Direct flights

None
The fastest flight from San Antonio to London takes 12h 54m
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 54m 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?

Travelling to a place near London?

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

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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