What is the cheapest airline that flies from London to San Antonio?

Aer Lingus, Lufthansa, and Iberia are the most popular carriers operating from London to San Antonio

What airlines fly to San Antonio?

British Airways, American Airlines and Iberia are the top three most popular airlines that fly to San Antonio from London according to our data. British Airways is the first choice among our users, with 64% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 4 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from London to San Antonio Airport are refreshed on a daily basis.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

$374 Cheap Flights from London to San Antonio in 2025

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Find the cheapest flights from London to San Antonio

Round-trip

One-way

Last minute

Cheap round-trip flights

2:00 pm - 1:49 pmLGW-SAT

29h 49m1 stop

8:37 pm - 10:55 amSAT-LGW

32h 18m1 stop

$536

Find Deal

Sat, Sep 13 - Sat, Sep 20

2:00 pm - 4:48 pmLGW-SAT

32h 48m2 stops

8:37 pm - 10:55 amSAT-LGW

32h 18m1 stop

$580

Find Deal

Thu, Aug 28 - Thu, Sep 4

6:40 am - 11:57 pmLHR-SAT

23h 17m2 stops

11:34 am - 9:40 pmSAT-LHR

28h 06m2 stops

$831Scandinavian Airlines

Find Deal

Fri, Aug 29 - Wed, Sep 3

6:40 am - 11:57 pmLHR-SAT

23h 17m2 stops

11:33 am - 4:00 pmSAT-LHR

22h 27m2 stops

$838Scandinavian Airlines

Find Deal

Thu, Aug 28 - Thu, Sep 4

8:20 am - 3:31 pmLHR-SAT

13h 11m1 stop

12:44 pm - 6:25 amSAT-LHR

11h 41m1 stop

$944British Airways

Find Deal

Wed, Sep 17 - Mon, Sep 29

9:35 am - 8:16 pmLHR-SAT

16h 41m2 stops

10:37 am - 6:45 amSAT-LHR

14h 08m1 stop

$949Virgin Atlantic

Find Deal

Wed, Sep 17 - Mon, Sep 29

6:35 am - 7:37 pmLHR-SAT

19h 02m2 stops

2:04 pm - 10:25 amSAT-LHR

14h 21m2 stops

$951United Airlines

Find Deal

Sat, Nov 8 - Sun, Nov 23

7:25 am - 7:52 pmLHR-SAT

18h 27m2 stops

1:20 pm - 9:20 amSAT-LHR

14h 00m1 stop

$952United Airlines

Find Deal

Tue, Sep 16 - Sun, Sep 21

5:15 pm - 11:54 amLHR-SAT

24h 39m2 stops

8:10 am - 12:30 pmSAT-LHR

22h 20m1 stop

$957British Airways

Find Deal

Mon, Sep 22 - Mon, Oct 6

12:00 pm - 11:57 pmLGW-SAT

17h 57m2 stops

11:34 am - 10:00 amSAT-LGW

16h 26m2 stops

$1,197Virgin Atlantic

Find Deal

Thu, Aug 28 - Thu, Sep 4

British Airways flights from London to San Antonio

Our best British Airways deals on London to San Antonio flight tickets

British Airways

Sep 17

LHR8:20 amLondon Heathrow

13h 11m

1 stop

SAT3:31 pmSan Antonio

Sep 29

SAT12:44 pmSan Antonio

11h 41m

1 stop

LHR6:25 amLondon Heathrow

$944

Find similar

British Airways

Sep 22

LHR5:15 pmLondon Heathrow

24h 39m

2 stops

SAT11:54 amSan Antonio

Oct 6

SAT8:10 amSan Antonio

22h 20m

1 stop

LHR12:30 pmLondon Heathrow

$957

Find similar

British Airways

Nov 10

LHR2:10 pmLondon Heathrow

13h 47m

1 stop

SAT9:57 pmSan Antonio

Nov 30

SAT5:52 pmSan Antonio

11h 48m

1 stop

LHR11:40 amLondon Heathrow

$978

Find similar

Finnair flights from London to San Antonio

Our best Finnair deals on London to San Antonio flight tickets

Finnair

Aug 25

LHR12:00 pmLondon Heathrow

16h 12m

1 stop

SAT10:12 pmSan Antonio

Sep 9

SAT1:44 pmSan Antonio

17h 01m

1 stop

LHR12:45 pmLondon Heathrow

$960

Find similar

Finnair

Sep 2

LHR8:20 amLondon Heathrow

15h 21m

1 stop

SAT5:41 pmSan Antonio

Sep 30

SAT1:44 pmSan Antonio

15h 06m

1 stop

LHR10:50 amLondon Heathrow

$961

Find similar

Finnair

Sep 2

LHR10:30 amLondon Heathrow

13h 11m

1 stop

SAT5:41 pmSan Antonio

Sep 30

SAT1:44 pmSan Antonio

13h 16m

1 stop

LHR9:00 amLondon Heathrow

$963

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Sat 9/13

2:00 pm-1:49 pm

1 stop29h 49m

San Antonio

Sat 9/20

8:37 pm-10:55 am

1 stop32h 18m

$536

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Thu 8/28

2:00 pm-4:48 pm

2 stops32h 48m

San Antonio

Thu 9/4

8:37 pm-10:55 am

1 stop32h 18m

$580

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 8/29

6:40 am-11:57 pm

2 stops23h 17m

San Antonio

Wed 9/3

11:34 am-9:40 pm

2 stops28h 06m

$831

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 8/28

6:40 am-11:57 pm

2 stops23h 17m

San Antonio

Thu 9/4

11:33 am-4:00 pm

2 stops22h 27m

$838

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 9/17

8:20 am-3:31 pm

1 stop13h 11m

San Antonio

Mon 9/29

12:44 pm-6:25 am

1 stop11h 41m

$944

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 9/17

9:35 am-8:16 pm

2 stops16h 41m

San Antonio

Mon 9/29

10:37 am-6:45 am

1 stop14h 08m

$949

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 11/8

6:35 am-7:37 pm

2 stops19h 02m

San Antonio

Sun 11/23

2:04 pm-10:25 am

2 stops14h 21m

$951

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 9/16

7:25 am-7:52 pm

2 stops18h 27m

San Antonio

Sun 9/21

1:20 pm-9:20 am

1 stop14h 00m

$952

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 9/22

5:15 pm-11:54 am

2 stops24h 39m

San Antonio

Mon 10/6

8:10 am-12:30 pm

1 stop22h 20m

$957

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Thu 8/28

12:00 pm-11:57 pm

2 stops17h 57m

San Antonio

Thu 9/4

11:34 am-10:00 am

2 stops16h 26m

$1,197

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of February, then book flights to San Antonio from London during March instead. Flights to San Antonio in March, while not as cheap as those in February, still average around $763.

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

The cheapest day to depart on your flight to San Antonio is on a Wednesday when prices can be found for as low as $973. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $1,240.

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

According to our data, the cheapest time of day to fly to San Antonio is in the morning. momondo users have found flights departing from London to San Antonio in the morning for as low as $1,222. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $1,260. Departure times at noon 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 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 $988 when searching weeks out. 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 $785 on momondo.

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

You could potentially save up to 18% 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 July 2025, prices for London to San Antonio flights are approximately 11% more expensive 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 round-trip 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

Best Price Found	$374
Fastest flight time	13h 00m
Direct flights	None
Airports in San Antonio	1 airport

The best one-way flight to San Antonio from London in the past 72 hours is $374. The best round-trip flight deal from London to San Antonio found on momondo in the last 72 hours is $536.

The fastest flight from London to San Antonio takes 13h 00m

There are no direct flights from London to San Antonio. Popular non-direct routes for this connection are London Heathrow Airport - San Antonio Airport, London City Airport - San Antonio Airport and London Gatwick Airport - San Antonio Airport.

There is 1 airport near San Antonio: San Antonio (SAT)

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How far is London to San Antonio by plane?
A flight from London to San Antonio will travel around 4985.7 mi. By plane, this route typically takes 13h 11m.
When did momondo last update prices for flights from London to San Antonio Airport?
Prices for flights from London to San Antonio Airport are refreshed on a daily basis.
How old do you have to be to fly from London to San Antonio Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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?
Based on momondo bookings for flights between London and San Antonio, the leading airline is British Airways, making up 100% of the total bookings.

New Braunfels

Kerrville

Boerne

Schertz

Pleasanton

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to San Antonio. momondo saves you time and could save you money on your trip.

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

All flight searches from London to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to San Antonio from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for London to San Antonio flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.