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Cheap flights from London Heathrow Airport to San Antonio from $557

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 5/11. 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

Find the cheapest flights from London Heathrow Airport to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:30 pm - 11:48 pm
LHR
-
SAT
34h 18m
2 stops
Scandinavian Airlines Logo
12:10 pm - 6:30 pm
SAT
-
LHR
24h 20m
2 stops
$927Scandinavian Airlines
Wed, May 20 - Mon, Aug 31
Scandinavian Airlines Logo
6:40 pm - 11:52 pm
LHR
-
SAT
35h 12m
2 stops
Scandinavian Airlines Logo
2:40 pm - 5:40 pm
SAT
-
LHR
21h 00m
2 stops
$928Scandinavian Airlines
Tue, Jun 9 - Mon, Jun 15
Scandinavian Airlines Logo
6:40 am - 11:48 pm
LHR
-
SAT
23h 08m
2 stops
Scandinavian Airlines Logo
12:10 pm - 9:20 am
SAT
-
LHR
39h 10m
2 stops
$949Scandinavian Airlines
Thu, May 21 - Sun, Aug 30
Multiple Airlines Logo
1:05 pm - 6:02 pm
LHR
-
SAT
34h 57m
3 stops
Multiple Airlines Logo
7:42 pm - 11:55 am
SAT
-
LHR
34h 13m
3 stops
$965Multiple Airlines
Thu, Jun 11 - Mon, Jun 22
Scandinavian Airlines Logo
6:40 pm - 12:15 am
LHR
-
SAT
35h 35m
2 stops
Scandinavian Airlines Logo
2:10 pm - 5:40 pm
SAT
-
LHR
21h 30m
2 stops
$996Scandinavian Airlines
Thu, Sep 10 - Mon, Sep 14
Scandinavian Airlines Logo
6:40 am - 12:15 am
LHR
-
SAT
23h 35m
2 stops
Scandinavian Airlines Logo
2:10 pm - 4:00 pm
SAT
-
LHR
19h 50m
2 stops
$1,001Scandinavian Airlines
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
6:45 pm - 9:13 pm
LHR
-
SAT
32h 28m
2 stops
Multiple Airlines Logo
12:10 pm - 6:45 am
SAT
-
LHR
12h 35m
1 stop
$1,006Multiple Airlines
Tue, Jun 23 - Tue, Aug 11
Multiple Airlines Logo
7:50 pm - 9:13 pm
LHR
-
SAT
31h 23m
2 stops
Multiple Airlines Logo
5:50 pm - 1:05 pm
SAT
-
LHR
13h 15m
1 stop
$1,007Multiple Airlines
Tue, Jun 23 - Tue, Aug 11
Multiple Airlines Logo
7:50 pm - 9:13 pm
LHR
-
SAT
31h 23m
2 stops
Multiple Airlines Logo
12:15 pm - 7:15 am
SAT
-
LHR
13h 00m
1 stop
$1,009Multiple Airlines
Tue, Jun 23 - Tue, Aug 11
Multiple Airlines Logo
7:50 pm - 9:13 pm
LHR
-
SAT
31h 23m
2 stops
Multiple Airlines Logo
6:15 pm - 12:10 pm
SAT
-
LHR
11h 55m
1 stop
$1,010Multiple Airlines
Tue, Jun 23 - Tue, Aug 11

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Air Canada flights from London Heathrow Airport to San Antonio

Our best Air Canada deals on London Heathrow Airport to San Antonio flight tickets
Air Canada
Jun 12
LHR8:30 amLondon Heathrow
18h 48m
1 stop
SAT9:18 pmSan Antonio
Jun 16
SAT8:30 amSan Antonio
18h 05m
1 stop
LHR8:35 amLondon Heathrow
$1,128
Air Canada
Jun 12
LHR8:30 amLondon Heathrow
18h 48m
1 stop
SAT9:18 pmSan Antonio
Jun 16
SAT8:30 amSan Antonio
18h 05m
1 stop
LHR8:35 amLondon Heathrow
$1,129
Air Canada
May 14
LHR9:30 amLondon Heathrow
29h 12m
3 stops
SAT8:42 amSan Antonio
Aug 3
SAT8:53 amSan Antonio
19h 07m
2 stops
LHR10:00 amLondon Heathrow
$1,137

Scandinavian Airlines flights from London Heathrow Airport to San Antonio

Our best Scandinavian Airlines deals on London Heathrow Airport to San Antonio flight tickets
Scandinavian Airlines
May 20
LHR7:30 pmLondon Heathrow
34h 18m
2 stops
SAT11:48 pmSan Antonio
Aug 31
SAT12:10 pmSan Antonio
24h 20m
2 stops
LHR6:30 pmLondon Heathrow
$927
Scandinavian Airlines
Jun 9
LHR6:40 pmLondon Heathrow
35h 12m
2 stops
SAT11:52 pmSan Antonio
Jun 15
SAT2:40 pmSan Antonio
21h 00m
2 stops
LHR5:40 pmLondon Heathrow
$928
Scandinavian Airlines
May 21
LHR6:40 amLondon Heathrow
23h 08m
2 stops
SAT11:48 pmSan Antonio
Aug 30
SAT12:10 pmSan Antonio
39h 10m
2 stops
LHR9:20 amLondon Heathrow
$949

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 May 2, 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

Cheapest round-trip

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 5/20

7:30 pm-11:48 pm

2 stops34h 18m

San Antonio

Mon 8/31

12:10 pm-6:30 pm

2 stops24h 20m

$927

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 6/9

6:40 pm-11:52 pm

2 stops35h 12m

San Antonio

Mon 6/15

2:40 pm-5:40 pm

2 stops21h 00m

$928

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 5/21

6:40 am-11:48 pm

2 stops23h 08m

San Antonio

Sun 8/30

12:10 pm-9:20 am

2 stops39h 10m

$949

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 6/11

1:05 pm-6:02 pm

3 stops34h 57m

San Antonio

Mon 6/22

7:42 pm-11:55 am

3 stops34h 13m

$965

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 9/10

6:40 pm-12:15 am

2 stops35h 35m

San Antonio

Mon 9/14

2:10 pm-5:40 pm

2 stops21h 30m

$996

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 9/10

6:40 am-12:15 am

2 stops23h 35m

San Antonio

Mon 9/14

2:10 pm-4:00 pm

2 stops19h 50m

$1,001

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 6/23

6:45 pm-9:13 pm

2 stops32h 28m

San Antonio

Tue 8/11

12:10 pm-6:45 am

1 stop12h 35m

$1,006

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 6/23

7:50 pm-9:13 pm

2 stops31h 23m

San Antonio

Tue 8/11

5:50 pm-1:05 pm

1 stop13h 15m

$1,007

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 6/23

7:50 pm-9:13 pm

2 stops31h 23m

San Antonio

Tue 8/11

12:15 pm-7:15 am

1 stop13h 00m

$1,009
Quickest round-trip

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 6/23

7:50 pm-9:13 pm

2 stops31h 23m

San Antonio

Tue 8/11

6:15 pm-12:10 pm

1 stop11h 55m

$1,010

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 January, then book flights to San Antonio from London Heathrow Airport during September instead. Flights to San Antonio in September, while not as cheap as those in January, still average around $1,007.

How far in advance should I book a flight from London Heathrow Airport 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 $1,174 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 $1,008 on momondo.

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

You could potentially save up to 18% 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?

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

14h 47m

Direct flights

None
The fastest flight from London Heathrow Airport to San Antonio takes 14h 47m
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

Frequently asked questions about flying from London Heathrow Airport to San Antonio

  • 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 14h 47m.

  • 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 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.

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
Pleasanton
Schertz

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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