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Cheap flights from San Antonio to London from $277

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 10/6. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Antonio to London.
 Logo
6:45 am - 10:55 amSAT-LGW
22h 10m1 stop
 Logo
10:45 am - 1:42 pmLGW-SAT
32h 57m1 stop
Fri, May 16 - Thu, May 29
 Logo
7:00 am - 11:50 amSAT-LHR
22h 50m3 stops
 Logo
8:45 am - 12:32 pmLHR-SAT
33h 47m3 stops
Thu, May 8 - Tue, May 13
 Logo
7:00 am - 11:50 amSAT-LHR
22h 50m3 stops
 Logo
8:45 am - 1:42 pmLHR-SAT
34h 57m2 stops
Thu, May 8 - Tue, May 13
Iberia Logo
12:30 pm - 6:25 amSAT-LHR
11h 55m1 stop
Iberia Logo
8:20 am - 6:53 pmLHR-SAT
16h 33m1 stop
$691Iberia
Find Deal
Tue, Sep 2 - Tue, Sep 16
Iberia Logo
5:30 pm - 10:50 amSAT-LHR
11h 20m1 stop
Iberia Logo
2:25 pm - 11:29 pmLHR-SAT
15h 04m1 stop
$756Iberia
Find Deal
Tue, Oct 7 - Thu, Oct 16
British Airways Logo
6:28 pm - 12:15 pmSAT-LHR
11h 47m1 stop
British Airways Logo
8:20 am - 4:41 pmLHR-SAT
14h 21m1 stop
$757British Airways
Find Deal
Tue, Oct 7 - Thu, Oct 16
United Airlines Logo
2:20 pm - 11:35 amSAT-LHR
15h 15m1 stop
United Airlines Logo
7:25 am - 7:32 pmLHR-SAT
18h 07m2 stops
$773United Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8
United Airlines Logo
5:56 pm - 11:35 amSAT-LHR
11h 39m1 stop
United Airlines Logo
8:30 am - 4:03 pmLHR-SAT
13h 33m1 stop
$787United Airlines
Find Deal
Wed, Oct 8 - Fri, Oct 17
British Airways Logo
4:35 pm - 10:50 amSAT-LHR
12h 15m1 stop
British Airways Logo
8:20 am - 3:49 pmLHR-SAT
13h 29m1 stop
$804British Airways
Find Deal
Tue, Aug 12 - Sat, Aug 23
American Airlines Logo
10:07 am - 8:35 amSAT-LGW
16h 28m2 stops
American Airlines Logo
12:20 pm - 11:37 pmLGW-SAT
17h 17m2 stops
$850American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4

Scandinavian Airlines flights from San Antonio to London

Our best Scandinavian Airlines deals on San Antonio to London flight tickets
Scandinavian Airlines
Sep 15
SAT12:10 pmSan Antonio
21h 50m
2 stops
LHR4:00 pmLondon Heathrow
Oct 15
LHR10:20 amLondon Heathrow
19h 01m
2 stops
SAT11:21 pmSan Antonio
Scandinavian Airlines
Sep 15
SAT12:15 pmSan Antonio
21h 45m
2 stops
LHR4:00 pmLondon Heathrow
Oct 15
LHR10:20 amLondon Heathrow
19h 01m
2 stops
SAT11:21 pmSan Antonio
Scandinavian Airlines
Sep 2
SAT12:10 pmSan Antonio
23h 30m
2 stops
LHR5:40 pmLondon Heathrow
Sep 16
LHR10:20 amLondon Heathrow
19h 01m
2 stops
SAT11:21 pmSan Antonio

Air Canada flights from San Antonio to London

Our best Air Canada deals on San Antonio to London flight tickets
Air Canada
Aug 12
SAT9:56 amSan Antonio
16h 39m
2 stops
LHR8:35 amLondon Heathrow
Aug 23
LHR9:30 amLondon Heathrow
35h 55m
2 stops
SAT3:25 pmSan Antonio
Air Canada
Oct 19
SAT6:48 amSan Antonio
17h 42m
2 stops
LHR6:30 amLondon Heathrow
Oct 26
LHR6:00 pmLondon Heathrow
26h 38m
2 stops
SAT3:38 pmSan Antonio
Air Canada
Apr 25
SAT7:00 amSan Antonio
20h 35m
2 stops
LHR9:35 amLondon Heathrow
Apr 28
LHR9:30 amLondon Heathrow
36h 16m
2 stops
SAT3:46 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 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 $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 $776.

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 20 weeks ahead of your departure date. In general, you can expect to find flights to London for around $950 when searching 20 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.

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

As of April 2025, prices for San Antonio to London flights are approximately 5% 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

$277

Fastest flight time

11h 05m

Direct flights

None

Airports in London

4 airports
The best one-way flight to London from San Antonio in the past 72 hours is $277. The best round-trip flight deal from San Antonio to London found on momondo in the last 72 hours is $618.
The fastest flight from San Antonio to London takes 11h 05m
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 Heathrow Airport and San Antonio Airport - London Stansted Airport.
There are 4 airports near London: London City (LCY), London Heathrow (LHR), London Stansted (STN), London Gatwick (LGW)

  • 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 05m.

  • 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
American AirlinesPriceFrom $615Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $672Free CancellationRating
7.0
2,682 reviews
Search Iberia flights
United AirlinesPriceFrom $692Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
British AirwaysPriceFrom $702Free CancellationRating
6.6
6,798 reviews
Search British Airways flights
DeltaPriceFrom $703Free CancellationRating
8.0
7,920 reviews
Search Delta flights
Virgin AtlanticPriceFrom $715Free CancellationRating
7.4
642 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
Guildford
Slough
Hayes
Dartford
Dover
Stansted
Ilford
Milton Keynes
Canterbury
Colchester
Horley
Wembley
Chelmsford
Richmond
Crawley
Hook

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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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