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Cheap flights from London Heathrow Airport to San Antonio from $574

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 4/11. 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
1 adult, Economy, 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
6:00 am - 9:18 pm
LHR
-
SAT
21h 18m
2 stops
Multiple Airlines Logo
7:08 pm - 2:25 pm
SAT
-
LHR
13h 17m
1 stop
$820Multiple Airlines
Wed, May 13 - Mon, Aug 3
Multiple Airlines Logo
6:00 am - 9:18 pm
LHR
-
SAT
21h 18m
2 stops
Multiple Airlines Logo
5:23 pm - 3:40 pm
SAT
-
LHR
16h 17m
2 stops
$827Multiple Airlines
Wed, May 13 - Mon, Aug 3
Scandinavian Airlines Logo
5:00 pm - 12:15 am
LHR
-
SAT
37h 15m
2 stops
Scandinavian Airlines Logo
12:10 pm - 5:40 pm
SAT
-
LHR
23h 30m
2 stops
$891Scandinavian Airlines
Wed, Sep 2 - Sun, Sep 6
Scandinavian Airlines Logo
7:30 pm - 12:15 am
LHR
-
SAT
34h 45m
2 stops
Scandinavian Airlines Logo
12:10 pm - 5:40 pm
SAT
-
LHR
23h 30m
2 stops
$895Scandinavian Airlines
Wed, Sep 2 - Sun, Sep 6
Scandinavian Airlines Logo
5:00 pm - 12:15 am
LHR
-
SAT
37h 15m
2 stops
Scandinavian Airlines Logo
12:10 pm - 5:40 pm
SAT
-
LHR
23h 30m
2 stops
$907Scandinavian Airlines
Wed, Sep 2 - Sun, Sep 6
Scandinavian Airlines Logo
7:30 pm - 10:15 pm
LHR
-
SAT
32h 45m
2 stops
Scandinavian Airlines Logo
12:10 pm - 5:40 pm
SAT
-
LHR
23h 30m
2 stops
$911Scandinavian Airlines
Wed, Sep 2 - Sun, Sep 6
Scandinavian Airlines Logo
7:30 pm - 12:46 am
LHR
-
SAT
35h 16m
2 stops
Scandinavian Airlines Logo
3:33 pm - 4:00 pm
SAT
-
LHR
42h 27m
2 stops
$1,002Scandinavian Airlines
Mon, Apr 13 - Mon, Apr 27
Scandinavian Airlines Logo
6:40 am - 10:25 pm
LHR
-
SAT
21h 45m
2 stops
Scandinavian Airlines Logo
3:28 pm - 1:35 pm
SAT
-
LHR
40h 07m
2 stops
$1,017Scandinavian Airlines
Thu, Apr 23 - Thu, Apr 30
British Airways Logo
4:25 pm - 11:56 pm
LHR
-
SAT
13h 31m
1 stop
British Airways Logo
5:47 pm - 12:50 pm
SAT
-
LHR
13h 03m
1 stop
$1,043British Airways
Wed, May 13 - Mon, Aug 3
Multiple Airlines Logo
6:00 am - 9:18 pm
LHR
-
SAT
21h 18m
2 stops
Multiple Airlines Logo
6:04 am - 10:15 pm
SAT
-
LHR
34h 11m
2 stops
$1,049Multiple Airlines
Wed, Jun 10 - Mon, Jun 22

United Airlines flights from London Heathrow Airport to San Antonio

Our best United Airlines deals on London Heathrow Airport to San Antonio flight tickets
United Airlines
Apr 28
LHR7:25 amLondon Heathrow
18h 23m
2 stops
SAT7:48 pmSan Antonio
May 5
SAT11:45 amSan Antonio
15h 35m
2 stops
LHR9:20 amLondon Heathrow
$1,144
United Airlines
Apr 30
LHR7:25 amLondon Heathrow
18h 15m
2 stops
SAT7:40 pmSan Antonio
May 7
SAT11:45 amSan Antonio
14h 45m
2 stops
LHR8:30 amLondon Heathrow
$1,179
United Airlines
Apr 26
LHR7:25 amLondon Heathrow
19h 38m
2 stops
SAT9:03 pmSan Antonio
May 3
SAT12:09 pmSan Antonio
15h 11m
2 stops
LHR9:20 amLondon Heathrow
$1,210

Lufthansa flights from London Heathrow Airport to San Antonio

Our best Lufthansa deals on London Heathrow Airport to San Antonio flight tickets
Lufthansa
Apr 12
LHR7:30 pmLondon Heathrow
31h 33m
2 stops
SAT9:03 pmSan Antonio
Apr 29
SAT12:15 pmSan Antonio
13h 00m
1 stop
LHR7:15 amLondon Heathrow
$1,108
Lufthansa
Apr 13
LHR11:25 amLondon Heathrow
15h 17m
1 stop
SAT8:42 pmSan Antonio
Apr 27
SAT9:40 amSan Antonio
15h 05m
2 stops
LHR6:45 amLondon Heathrow
$1,119
Lufthansa
Apr 13
LHR1:40 pmLondon Heathrow
15h 19m
1 stop
SAT10:59 pmSan Antonio
May 4
SAT8:48 amSan Antonio
16h 07m
2 stops
LHR6:55 amLondon Heathrow
$1,123

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 March 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

Wed 5/13

6:00 am-9:18 pm

2 stops21h 18m

San Antonio

Mon 8/3

7:08 pm-2:25 pm

1 stop13h 17m

$820

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 5/13

6:00 am-9:18 pm

2 stops21h 18m

San Antonio

Mon 8/3

5:23 pm-3:40 pm

2 stops16h 17m

$827

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 9/2

5:00 pm-12:15 am

2 stops37h 15m

San Antonio

Sun 9/6

12:10 pm-5:40 pm

2 stops23h 30m

$891

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 9/2

7:30 pm-12:15 am

2 stops34h 45m

San Antonio

Sun 9/6

12:10 pm-5:40 pm

2 stops23h 30m

$895

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 9/2

5:00 pm-12:15 am

2 stops37h 15m

San Antonio

Sun 9/6

12:10 pm-5:40 pm

2 stops23h 30m

$907

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 9/2

7:30 pm-10:15 pm

2 stops32h 45m

San Antonio

Sun 9/6

12:10 pm-5:40 pm

2 stops23h 30m

$911

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 4/13

7:30 pm-12:46 am

2 stops35h 16m

San Antonio

Mon 4/27

3:33 pm-4:00 pm

2 stops42h 27m

$1,002

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 4/23

6:40 am-10:25 pm

2 stops21h 45m

San Antonio

Thu 4/30

3:28 pm-1:35 pm

2 stops40h 07m

$1,017
Quickest round-trip

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 5/13

4:25 pm-11:56 pm

1 stop13h 31m

San Antonio

Mon 8/3

5:47 pm-12:50 pm

1 stop13h 03m

$1,043

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 6/10

6:00 am-9:18 pm

2 stops21h 18m

San Antonio

Mon 6/22

6:04 am-10:15 pm

2 stops34h 11m

$1,049

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 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 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 $1,149 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 $950 on momondo.

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

You could potentially save up to 1% 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

13h 23m

Direct flights

None
The fastest flight from London Heathrow Airport to San Antonio takes 13h 23m
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 13h 23m.

  • 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 $1,045Free CancellationRating
6.7
7,797 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
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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