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Cheap flights from London to San Antonio from £254

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to San Antonio departing on 1/11. 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 London to San Antonio

Cheap return flights

Scandinavian Airlines Logo
19:30 - 23:07LHR-SAT
33h 37m2 stops
Scandinavian Airlines Logo
16:51 - 21:40SAT-LHR
23h 49m2 stops
£573Scandinavian Airlines
Find Deal
Thu, 23 Oct - Tue, 28 Oct
Logo
14:00 - 13:47LGW-SAT
53h 47m2 stops
Logo
14:42 - 10:55SAT-LGW
38h 13m1 stop
£579
Find Deal
Tue, 14 Oct - Thu, 23 Oct
Logo
14:00 - 16:20LGW-SAT
56h 20m2 stops
Logo
16:55 - 10:00SAT-LGW
35h 05m1 stop
£584
Find Deal
Mon, 22 Sep - Mon, 6 Oct
Logo
10:55 - 13:47LGW-SAT
32h 52m1 stop
Logo
20:26 - 06:00SAT-LGW
28h 34m2 stops
£588
Find Deal
Wed, 15 Oct - Sun, 26 Oct
United Airlines Logo
13:40 - 21:17LHR-SAT
13h 37m1 stop
United Airlines Logo
14:25 - 07:40SAT-LHR
11h 15m1 stop
£659United Airlines
Find Deal
Mon, 22 Sep - Mon, 6 Oct
United Airlines Logo
07:30 - 20:15LHR-SAT
17h 45m2 stops
United Airlines Logo
12:12 - 10:25SAT-LHR
16h 13m2 stops
£661United Airlines
Find Deal
Fri, 31 Oct - Thu, 6 Nov
Virgin Atlantic Logo
15:15 - 23:59LHR-SAT
14h 44m1 stop
Virgin Atlantic Logo
13:37 - 07:15SAT-LHR
11h 38m1 stop
£674Virgin Atlantic
Find Deal
Thu, 18 Sep - Mon, 22 Sep
Virgin Atlantic Logo
10:55 - 23:25LHR-SAT
18h 30m2 stops
Virgin Atlantic Logo
13:37 - 11:10SAT-LHR
15h 33m1 stop
£695Virgin Atlantic
Find Deal
Thu, 18 Sep - Mon, 22 Sep
Finnair Logo
16:25 - 17:47LHR-SAT
31h 22m1 stop
Finnair Logo
14:31 - 09:00SAT-LHR
12h 29m1 stop
£701Finnair
Find Deal
Mon, 22 Sep - Mon, 6 Oct
British Airways Logo
08:20 - 17:45LHR-SAT
15h 25m1 stop
British Airways Logo
20:25 - 14:25SAT-LHR
12h 00m1 stop
£758British Airways
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Mon, 13 Oct - Thu, 23 Oct

Virgin Atlantic flights from London to San Antonio

Our best Virgin Atlantic deals on London to San Antonio flight tickets
Virgin Atlantic
18 Sept
LHR15:15London Heathrow
14h 44m
1 stop
SAT23:59San Antonio
22 Sept
SAT13:37San Antonio
11h 38m
1 stop
LHR07:15London Heathrow
£674
Find similar
Virgin Atlantic
18 Sept
LHR10:55London Heathrow
18h 30m
2 stops
SAT23:25San Antonio
22 Sept
SAT13:37San Antonio
15h 33m
1 stop
LHR11:10London Heathrow
£695
Find similar
Virgin Atlantic
16 Dec
LCY09:20London City
21h 13m
2 stops
SAT00:33San Antonio
30 Dec
SAT13:35San Antonio
21h 00m
2 stops
LCY16:35London City
£1,195
Find similar

Air Canada flights from London to San Antonio

Our best Air Canada deals on London to San Antonio flight tickets
Air Canada
18 Sept
LHR09:30London Heathrow
17h 03m
2 stops
SAT20:33San Antonio
22 Sept
SAT12:57San Antonio
16h 53m
2 stops
LHR11:50London Heathrow
£688
Find similar
Air Canada
26 Sept
LHR09:30London Heathrow
19h 05m
2 stops
SAT22:35San Antonio
7 Oct
SAT09:47San Antonio
14h 48m
2 stops
LHR06:35London Heathrow
£689
Find similar
Air Canada
30 Oct
LHR11:10London Heathrow
17h 06m
2 stops
SAT23:16San Antonio
6 Nov
SAT14:04San Antonio
15h 16m
2 stops
LHR11:20London Heathrow
£693
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London to San Antonio 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 12 September 2025.
Use the filters below to find and compare flights from London to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 23/10

19:30-23:07

2 stops33h 37m

San Antonio

Tue 28/10

16:51-21:40

2 stops23h 49m

£573

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Tue 14/10

14:00-13:47

2 stops53h 47m

San Antonio

Thu 23/10

14:42-10:55

1 stop38h 13m

£579

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Mon 22/9

14:00-16:20

2 stops56h 20m

San Antonio

Mon 6/10

16:55-10:00

1 stop35h 05m

£584

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Wed 15/10

10:55-13:47

1 stop32h 52m

San Antonio

Sun 26/10

20:26-06:00

2 stops28h 34m

£588

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 22/9

13:40-21:17

1 stop13h 37m

San Antonio

Mon 6/10

14:25-07:40

1 stop11h 15m

£659

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 31/10

07:30-20:15

2 stops17h 45m

San Antonio

Thu 6/11

12:12-10:25

2 stops16h 13m

£661

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 18/9

15:15-23:59

1 stop14h 44m

San Antonio

Mon 22/9

13:37-07:15

1 stop11h 38m

£674

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 18/9

10:55-23:25

2 stops18h 30m

San Antonio

Mon 22/9

13:37-11:10

1 stop15h 33m

£695

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 22/9

16:25-17:47

1 stop31h 22m

San Antonio

Mon 6/10

14:31-09:00

1 stop12h 29m

£701

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 13/10

08:20-17:45

1 stop15h 25m

San Antonio

Thu 23/10

20:25-14:25

1 stop12h 00m

£758

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from London to San Antonio

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 London and San Antonio?

What is the cheapest month to fly to San Antonio?

The month of February is, on average, the cheapest month to fly to San Antonio from London, with most prices found around £537. If you aren’t able to travel to San Antonio during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £563.

What is the cheapest day to depart on your flight to San Antonio?

According to our data, Wednesday is the cheapest day to fly to San Antonio from London. The lowest ticket price found for a Wednesday departure recently was £616. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London to San Antonio for around £686.

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

At midday is the cheapest time of day to fly from London to San Antonio when you can find flight prices for as low as £612. Flying to San Antonio at midday is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around £687. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to San Antonio?

You are more likely to see cheaper flights to San Antonio from London when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around £730 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from London for as low as £577 on momondo.

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

You could potentially save up to 13% on your flight if you consider stops on a London to San Antonio flight.

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

As of September 2025, prices for London to San Antonio flights are approximately 5% cheaper when compared to flights at the same time last year.

When to book flights from London to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from London to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to San Antonio (LON to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to San Antonio

Direct flights

None
There are no direct flights from London to San Antonio. There are no popular flight routes from London to San Antonio.
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  • How far is London to San Antonio by plane?

    The straight-line distance from London to San Antonio is 4985.7 mi. Typically, this will take 13h 37m by plane in normal conditions.

  • When did momondo last update prices for flights from London to San Antonio Airport?

    Prices for flights from London to San Antonio Airport are updated daily.

  • How many operators does momondo search for flights from London to San Antonio Airport?

  • How old do you have to be to fly from London to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London to San Antonio?

Best airlines flying from London to San Antonio

Compare and see reviews for airlines that fly from London to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
FinnairPriceFrom £503Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
IberiaPriceFrom £529Free CancellationRating
7.0
2,929 reviews
Search Iberia flights
Scandinavian AirlinesPriceFrom £591Free CancellationRating
7.4
1,484 reviews
Search Scandinavian Airlines flights
Virgin AtlanticPriceFrom £668Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £693Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
United AirlinesPriceFrom £698Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
LufthansaPriceFrom £701Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights

Travelling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels

Why use momondo?

Why should I use momondo to find a flight deal from London to San Antonio?

Finding the right flight to San Antonio from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

Can I find flights from London to San Antonio with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Antonio from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to San Antonio?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to San Antonio.

I’m not ready to book a flight from London to San Antonio right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to San Antonio 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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