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Cheap flights from San Antonio to London from $321

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 7/11. 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 round-trip flights

 Logo
9:32 pm - 10:55 amSAT-LGW
31h 23m2 stops
 Logo
10:55 am - 11:30 pmLGW-SAT
18h 35m1 stop
Tue, Oct 7 - Wed, Oct 15
Virgin Atlantic Logo
4:00 pm - 2:35 pmSAT-LHR
16h 35m1 stop
Virgin Atlantic Logo
3:15 pm - 11:57 pmLHR-SAT
14h 42m1 stop
$590Virgin Atlantic
Find Deal
Mon, Aug 4 - Wed, Aug 20
Iberia Logo
7:35 pm - 6:25 amSAT-LHR
28h 50m1 stop
Iberia Logo
12:00 pm - 8:33 pmLHR-SAT
14h 33m1 stop
$595Iberia
Find Deal
Sat, Jul 26 - Thu, Aug 14
British Airways Logo
4:49 pm - 12:30 pmSAT-LHR
13h 41m1 stop
British Airways Logo
10:30 am - 5:45 pmLHR-SAT
13h 15m1 stop
$628British Airways
Find Deal
Wed, Oct 1 - Wed, Oct 8
United Airlines Logo
6:45 am - 5:55 amSAT-LHR
17h 10m2 stops
United Airlines Logo
1:25 pm - 11:23 pmLHR-SAT
38h 58m2 stops
$631United Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 28
United Airlines Logo
8:55 am - 6:55 amSAT-LHR
16h 00m2 stops
United Airlines Logo
9:30 am - 12:01 pmLHR-SAT
32h 31m2 stops
$632United Airlines
Find Deal
Tue, Aug 26 - Thu, Sep 4
British Airways Logo
6:45 pm - 2:25 pmSAT-LHR
13h 40m1 stop
British Airways Logo
10:30 am - 5:41 pmLHR-SAT
13h 11m1 stop
$635British Airways
Find Deal
Tue, Aug 12 - Wed, Aug 20
Iberia Logo
6:24 pm - 12:15 pmSAT-LHR
11h 51m1 stop
Iberia Logo
7:25 pm - 10:59 pmLHR-SAT
33h 34m2 stops
$639Iberia
Find Deal
Mon, Aug 18 - Mon, Aug 25
American Airlines Logo
11:11 am - 8:35 amSAT-LGW
15h 24m2 stops
American Airlines Logo
12:20 pm - 11:00 pmLGW-SAT
16h 40m2 stops
$716American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
American Airlines Logo
8:00 am - 8:10 amSAT-LGW
18h 10m2 stops
American Airlines Logo
12:20 pm - 10:59 pmLGW-SAT
16h 39m2 stops
$718American Airlines
Find Deal
Sat, Aug 16 - Sat, Aug 23

Virgin Atlantic flights from San Antonio to London

Our best Virgin Atlantic deals on San Antonio to London flight tickets
Virgin Atlantic
Aug 4
SAT4:00 pmSan Antonio
16h 35m
1 stop
LHR2:35 pmLondon Heathrow
Aug 20
LHR3:15 pmLondon Heathrow
14h 42m
1 stop
SAT11:57 pmSan Antonio
Virgin Atlantic
Aug 4
SAT6:11 pmSan Antonio
13h 19m
1 stop
LHR1:30 pmLondon Heathrow
Aug 20
LHR1:05 pmLondon Heathrow
13h 14m
1 stop
SAT8:19 pmSan Antonio
Virgin Atlantic
Aug 26
SAT11:33 amSan Antonio
16h 27m
1 stop
LGW10:00 amLondon Gatwick
Sep 4
LGW12:00 pmLondon Gatwick
17h 57m
2 stops
SAT11:57 pmSan Antonio

British Airways flights from San Antonio to London

Our best British Airways deals on San Antonio to London flight tickets
British Airways
Oct 1
SAT4:49 pmSan Antonio
13h 41m
1 stop
LHR12:30 pmLondon Heathrow
Oct 8
LHR10:30 amLondon Heathrow
13h 15m
1 stop
SAT5:45 pmSan Antonio
British Airways
Aug 12
SAT6:45 pmSan Antonio
13h 40m
1 stop
LHR2:25 pmLondon Heathrow
Aug 20
LHR10:30 amLondon Heathrow
13h 11m
1 stop
SAT5:41 pmSan Antonio
British Airways
Sep 15
SAT6:49 pmSan Antonio
13h 36m
1 stop
LHR2:25 pmLondon Heathrow
Oct 10
LHR10:30 amLondon Heathrow
14h 07m
1 stop
SAT6:37 pmSan Antonio

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 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 $743, 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 $775.

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

The cheapest day to depart from San Antonio to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $835. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,031. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from San Antonio in the evening is the least expensive time of day to depart. momondo users have found prices as low as $861 when looking at flights departing in the evening. Flights to London are more costly in the morning, with an average ticket price of $1,021. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $974 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 $838 on momondo.

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

You could potentially save up to 17% 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 July 2025, prices for San Antonio to London flights are approximately 33% cheaper 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 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

Best Price Found

$321

Fastest flight time

11h 15m

Direct flights

None

Airports in London

5 airports
The best one-way flight to London from San Antonio in the past 72 hours is $321. The best round-trip flight deal from San Antonio to London found on momondo in the last 72 hours is $572.
The fastest flight from San Antonio to London takes 11h 15m
There are no direct flights from San Antonio to London. Popular non-direct routes for this connection are San Antonio Airport - London Gatwick Airport, San Antonio Airport - London City Airport and San Antonio Airport - London Heathrow Airport.
There are 5 airports near London: London City (LCY), London Heathrow (LHR), London Stansted (STN), London Gatwick (LGW), London Southend (SEN)

  • 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 11h 15m.

  • 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?

  • 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?


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
DeltaPriceFrom $649Free CancellationRating
8.0
7,982 reviews
Search Delta flights
American AirlinesPriceFrom $662Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $668Free CancellationRating
7.0
2,820 reviews
Search Iberia flights
United AirlinesPriceFrom $698Free CancellationRating
7.4
8,861 reviews
Search United Airlines flights
British AirwaysPriceFrom $701Free CancellationRating
6.6
7,093 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $715Free CancellationRating
7.4
654 reviews
Search Virgin Atlantic flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Croydon
Luton
Slough
Dover
Dartford
Guildford
Stansted
Hayes
Milton Keynes
Ilford
Colchester
Chelmsford
Canterbury
Watford
Richmond
Wembley
Dagenham
St. Albans

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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1 adult
Tue 7/8
Tue 7/15

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