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Cheap flights from London Heathrow Airport to San Antonio from $548

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 8/25. 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
1 adult, Economy, 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
6:40 am - 11:18 pm
LHR
-
SAT
22h 38m
2 stops
Scandinavian Airlines Logo
4:10 pm - 6:30 pm
SAT
-
LHR
20h 20m
2 stops
$966Scandinavian Airlines
Thu, Nov 12 - Fri, Jan 22
Scandinavian Airlines Logo
6:40 am - 10:27 pm
LHR
-
SAT
21h 47m
2 stops
Scandinavian Airlines Logo
4:10 pm - 6:30 pm
SAT
-
LHR
20h 20m
2 stops
$967Scandinavian Airlines
Mon, Nov 2 - Wed, Dec 2
Scandinavian Airlines Logo
5:00 pm - 12:16 am
LHR
-
SAT
37h 16m
2 stops
Scandinavian Airlines Logo
12:10 pm - 5:40 pm
SAT
-
LHR
23h 30m
2 stops
$976Scandinavian Airlines
Sat, Oct 3 - Wed, Oct 21
Scandinavian Airlines Logo
6:40 am - 12:28 am
LHR
-
SAT
23h 48m
2 stops
Scandinavian Airlines Logo
2:10 pm - 6:30 pm
SAT
-
LHR
22h 20m
2 stops
$988Scandinavian Airlines
Mon, Nov 2 - Fri, Nov 6
Scandinavian Airlines Logo
7:05 am - 12:28 am
LHR
-
SAT
23h 23m
3 stops
Scandinavian Airlines Logo
12:15 pm - 6:30 pm
SAT
-
LHR
24h 15m
2 stops
$992Scandinavian Airlines
Mon, Nov 2 - Fri, Nov 6
Scandinavian Airlines Logo
6:40 am - 11:18 pm
LHR
-
SAT
22h 38m
3 stops
Scandinavian Airlines Logo
4:10 pm - 6:30 pm
SAT
-
LHR
20h 20m
2 stops
$993Scandinavian Airlines
Thu, Nov 12 - Fri, Jan 22
Scandinavian Airlines Logo
6:40 am - 11:10 pm
LHR
-
SAT
22h 30m
2 stops
Scandinavian Airlines Logo
12:10 pm - 4:00 pm
SAT
-
LHR
21h 50m
2 stops
$994Scandinavian Airlines
Sat, Oct 3 - Wed, Oct 21
Scandinavian Airlines Logo
7:05 am - 12:28 am
LHR
-
SAT
23h 23m
3 stops
Scandinavian Airlines Logo
2:10 pm - 4:25 pm
SAT
-
LHR
20h 15m
3 stops
$996Scandinavian Airlines
Mon, Nov 2 - Wed, Dec 2
Scandinavian Airlines Logo
6:40 am - 11:10 pm
LHR
-
SAT
22h 30m
2 stops
Scandinavian Airlines Logo
12:10 pm - 4:25 pm
SAT
-
LHR
22h 15m
3 stops
$998Scandinavian Airlines
Sat, Oct 3 - Wed, Oct 21
Scandinavian Airlines Logo
10:20 am - 11:18 pm
LHR
-
SAT
18h 58m
2 stops
Scandinavian Airlines Logo
12:15 pm - 5:40 pm
SAT
-
LHR
23h 25m
2 stops
$999Scandinavian Airlines
Wed, Nov 11 - Sun, Nov 15

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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
Sep 15
LHR7:30 pmLondon Heathrow
31h 43m
2 stops
SAT9:13 pmSan Antonio
Sep 20
SAT7:35 amSan Antonio
16h 55m
3 stops
LHR6:30 amLondon Heathrow
$1,215
Air Canada
Sep 15
LHR7:30 pmLondon Heathrow
31h 43m
2 stops
SAT9:13 pmSan Antonio
Sep 20
SAT7:35 amSan Antonio
16h 55m
3 stops
LHR6:30 amLondon Heathrow
$1,216
Air Canada
Sep 15
LHR5:40 pmLondon Heathrow
33h 33m
1 stop
SAT9:13 pmSan Antonio
Sep 20
SAT7:35 amSan Antonio
16h 55m
3 stops
LHR6:30 amLondon Heathrow
$1,217

Lufthansa flights from London Heathrow Airport to San Antonio

Our best Lufthansa deals on London Heathrow Airport to San Antonio flight tickets
Lufthansa
Sep 15
LHR7:25 amLondon Heathrow
19h 51m
2 stops
SAT9:16 pmSan Antonio
Sep 20
SAT1:45 pmSan Antonio
16h 50m
1 stop
LHR12:35 pmLondon Heathrow
$1,121
Lufthansa
Oct 3
LHR7:30 amLondon Heathrow
20h 01m
2 stops
SAT9:31 pmSan Antonio
Oct 21
SAT11:47 amSan Antonio
17h 48m
1 stop
LHR11:35 amLondon Heathrow
$1,140
Lufthansa
Sep 15
LHR7:30 amLondon Heathrow
19h 46m
2 stops
SAT9:16 pmSan Antonio
Sep 20
SAT7:00 amSan Antonio
17h 55m
1 stop
LHR6:55 amLondon Heathrow
$1,141

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 June 17, 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

Thu 11/12

6:40 am-11:18 pm

2 stops22h 38m

San Antonio

Fri 1/22

4:10 pm-6:30 pm

2 stops20h 20m

$966
Quickest round-trip

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 11/2

6:40 am-10:27 pm

2 stops21h 47m

San Antonio

Wed 12/2

4:10 pm-6:30 pm

2 stops20h 20m

$967

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 10/3

5:00 pm-12:16 am

2 stops37h 16m

San Antonio

Wed 10/21

12:10 pm-5:40 pm

2 stops23h 30m

$976

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 11/2

6:40 am-12:28 am

2 stops23h 48m

San Antonio

Fri 11/6

2:10 pm-6:30 pm

2 stops22h 20m

$988

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 11/2

7:05 am-12:28 am

3 stops23h 23m

San Antonio

Fri 11/6

12:15 pm-6:30 pm

2 stops24h 15m

$992

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 11/12

6:40 am-11:18 pm

3 stops22h 38m

San Antonio

Fri 1/22

4:10 pm-6:30 pm

2 stops20h 20m

$993

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 10/3

6:40 am-11:10 pm

2 stops22h 30m

San Antonio

Wed 10/21

12:10 pm-4:00 pm

2 stops21h 50m

$994

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 11/2

7:05 am-12:28 am

3 stops23h 23m

San Antonio

Wed 12/2

2:10 pm-4:25 pm

3 stops20h 15m

$996

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 10/3

6:40 am-11:10 pm

2 stops22h 30m

San Antonio

Wed 10/21

12:10 pm-4:25 pm

3 stops22h 15m

$998

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 11/11

10:20 am-11:18 pm

2 stops18h 58m

San Antonio

Sun 11/15

12:15 pm-5:40 pm

2 stops23h 25m

$999

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 September, then book flights to San Antonio from London Heathrow Airport during January instead. Flights to San Antonio in January, while not as cheap as those in September, still average around $993.

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 $1,232 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 25% 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

12h 41m

Direct flights

None
The fastest flight from London Heathrow Airport to San Antonio takes 12h 41m
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 12h 41m.

  • 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
Pleasanton
Boerne
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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