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Cheap flights from London Heathrow Airport to San Antonio from $537

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 Heathrow Airport to San Antonio departing on 4/21. 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 Heathrow Airport to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:30 pm - 10:29 pm
LHR
-
SAT
32h 59m
2 stops
Multiple Airlines Logo
6:00 am - 6:30 am
SAT
-
LHR
18h 30m
2 stops
$725Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
1:40 pm - 10:29 pm
LHR
-
SAT
14h 49m
1 stop
Multiple Airlines Logo
6:00 am - 5:20 am
SAT
-
LHR
17h 20m
1 stop
$736Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
10:50 am - 11:59 pm
LHR
-
SAT
19h 09m
1 stop
Multiple Airlines Logo
6:00 am - 6:50 am
SAT
-
LHR
19h 50m
2 stops
$737Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
10:40 am - 11:59 pm
LHR
-
SAT
19h 19m
2 stops
Multiple Airlines Logo
6:00 am - 9:30 am
SAT
-
LHR
22h 30m
2 stops
$753Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
9:10 am - 11:59 pm
LHR
-
SAT
20h 49m
2 stops
Multiple Airlines Logo
6:00 am - 10:25 am
SAT
-
LHR
23h 25m
2 stops
$793Multiple Airlines
Wed, Mar 4 - Sun, Mar 8
Multiple Airlines Logo
6:30 pm - 10:29 pm
LHR
-
SAT
33h 59m
2 stops
Multiple Airlines Logo
8:35 am - 6:35 am
SAT
-
LHR
16h 00m
1 stop
$797Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
7:30 pm - 11:52 pm
LHR
-
SAT
34h 22m
2 stops
Multiple Airlines Logo
6:30 am - 8:50 pm
SAT
-
LHR
32h 20m
2 stops
$804Multiple Airlines
Tue, Feb 3 - Sun, Feb 8
Scandinavian Airlines Logo
5:00 pm - 10:30 pm
LHR
-
SAT
35h 30m
2 stops
Scandinavian Airlines Logo
3:24 pm - 6:30 pm
SAT
-
LHR
21h 06m
2 stops
$807Scandinavian Airlines
Wed, Apr 8 - Tue, Apr 14
Scandinavian Airlines Logo
6:40 am - 11:43 pm
LHR
-
SAT
23h 03m
2 stops
Scandinavian Airlines Logo
4:10 pm - 6:30 pm
SAT
-
LHR
21h 20m
2 stops
$837Scandinavian Airlines
Wed, Mar 4 - Wed, Mar 11
Scandinavian Airlines Logo
7:05 am - 11:43 pm
LHR
-
SAT
22h 38m
3 stops
Scandinavian Airlines Logo
4:10 pm - 9:40 pm
SAT
-
LHR
24h 30m
2 stops
$841Scandinavian Airlines
Wed, Mar 4 - Wed, Mar 11

British Airways flights from London Heathrow Airport to San Antonio

Our best British Airways deals on London Heathrow Airport to San Antonio flight tickets
British Airways
Mar 2
LHR7:30 amLondon Heathrow
19h 20m
2 stops
SAT8:50 pmSan Antonio
Mar 10
SAT4:41 pmSan Antonio
12h 19m
1 stop
LHR10:00 amLondon Heathrow
$948
British Airways
Mar 4
LHR2:10 pmLondon Heathrow
15h 46m
1 stop
SAT11:56 pmSan Antonio
Mar 11
SAT5:53 pmSan Antonio
13h 07m
1 stop
LHR12:00 pmLondon Heathrow
$955
British Airways
Mar 1
LHR3:45 pmLondon Heathrow
35h 04m
2 stops
SAT8:49 pmSan Antonio
Mar 9
SAT5:36 pmSan Antonio
11h 24m
1 stop
LHR10:00 amLondon Heathrow
$959

Finnair flights from London Heathrow Airport to San Antonio

Our best Finnair deals on London Heathrow Airport to San Antonio flight tickets
Finnair
Apr 13
LHR6:10 pmLondon Heathrow
30h 32m
2 stops
SAT6:42 pmSan Antonio
May 4
SAT1:32 pmSan Antonio
16h 38m
1 stop
LHR12:10 pmLondon Heathrow
$984
Finnair
Mar 2
LHR6:10 pmLondon Heathrow
30h 14m
2 stops
SAT6:24 pmSan Antonio
Mar 9
SAT3:08 pmSan Antonio
19h 07m
2 stops
LHR3:15 pmLondon Heathrow
$989
Finnair
Apr 13
LHR8:55 amLondon Heathrow
15h 47m
1 stop
SAT6:42 pmSan Antonio
May 4
SAT1:32 pmSan Antonio
12h 33m
1 stop
LHR8:05 amLondon Heathrow
$991

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport 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 832,500 searches. Data last updated January 20, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 5/5

7:30 pm-10:29 pm

2 stops32h 59m

San Antonio

Tue 5/12

6:00 am-6:30 am

2 stops18h 30m

$725

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 5/5

1:40 pm-10:29 pm

1 stop14h 49m

San Antonio

Tue 5/12

6:00 am-5:20 am

1 stop17h 20m

$736

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/4

10:50 am-11:59 pm

1 stop19h 09m

San Antonio

Wed 3/11

6:00 am-6:50 am

2 stops19h 50m

$737

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/4

10:40 am-11:59 pm

2 stops19h 19m

San Antonio

Wed 3/11

6:00 am-9:30 am

2 stops22h 30m

$753

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/4

9:10 am-11:59 pm

2 stops20h 49m

San Antonio

Sun 3/8

6:00 am-10:25 am

2 stops23h 25m

$793

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 5/5

6:30 pm-10:29 pm

2 stops33h 59m

San Antonio

Tue 5/12

8:35 am-6:35 am

1 stop16h 00m

$797

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 2/3

7:30 pm-11:52 pm

2 stops34h 22m

San Antonio

Sun 2/8

6:30 am-8:50 pm

2 stops32h 20m

$804

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 4/8

5:00 pm-10:30 pm

2 stops35h 30m

San Antonio

Tue 4/14

3:24 pm-6:30 pm

2 stops21h 06m

$807

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/4

6:40 am-11:43 pm

2 stops23h 03m

San Antonio

Wed 3/11

4:10 pm-6:30 pm

2 stops21h 20m

$837

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/4

7:05 am-11:43 pm

3 stops22h 38m

San Antonio

Wed 3/11

4:10 pm-9:40 pm

2 stops24h 30m

$841

Flights are sorted by cheapest round-trip 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 Heathrow Airport 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 Heathrow Airport and San Antonio?

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of March, then book flights to San Antonio from London Heathrow Airport during February instead. Flights to San Antonio in February, while not as cheap as those in March, still average around $973.

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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $1,114 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 Heathrow Airport for as low as $939 on momondo.

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

You could potentially save up to 2% on your flight if you consider stops on a London Heathrow Airport to San Antonio flight.

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

As of January 2026, prices for London Heathrow Airport to San Antonio flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to San Antonio

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

Cheap London Heathrow Airport to San Antonio (LHR to SAT) flight deals and tips

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

Fastest flight time

19h 09m

Direct flights

None
The fastest flight from London Heathrow Airport to San Antonio takes 19h 09m
There are no direct flights from London Heathrow Airport to San Antonio. There are no popular flight routes from London Heathrow Airport to San Antonio.
Search flight deals

  • How far is London Heathrow to San Antonio by plane?

    A flight from London Heathrow to San Antonio will travel around 4973.6 mi. In terms of flight time, this usually takes a little over 19h 09m.

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

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

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

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

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

    The necessary travel and health documents for your San Antonio Airport 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 London Heathrow Airport to San Antonio?

Best airlines flying from London Heathrow Airport to San Antonio

Compare and see reviews for airlines that fly from London Heathrow Airport to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $1,014Free CancellationRating
6.7
7,690 reviews
Search British Airways flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Boerne
Schertz
Pleasanton

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?

Yes. momondo enables you to select and highlight flights to San Antonio from London with this policy.

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?

If you are simply researching potential flights to San Antonio, momondo offers a useful price alert feature which will track prices for flights to San Antonio from London and alert you when they change.

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