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Cheap flights from London Heathrow Airport to San Antonio from $622

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 11/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Scandinavian Airlines Logo
10:20 am - 12:17 amLHR-SAT
19h 57m2 stops
Scandinavian Airlines Logo
2:46 pm - 9:40 pmSAT-LHR
24h 54m2 stops
$816Scandinavian Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
Multiple Airlines Logo
12:15 pm - 1:00 pmLHR-SAT
30h 45m3 stops
Multiple Airlines Logo
7:00 am - 10:50 amSAT-LHR
21h 50m3 stops
$840Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
1:25 pm - 6:32 pmLHR-SAT
35h 07m3 stops
Multiple Airlines Logo
7:37 pm - 7:10 amSAT-LHR
29h 33m3 stops
$843Multiple Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
Scandinavian Airlines Logo
7:05 am - 12:17 amLHR-SAT
23h 12m3 stops
Scandinavian Airlines Logo
2:46 pm - 6:50 pmSAT-LHR
22h 04m3 stops
$847Scandinavian Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 1
United Airlines Logo
6:30 am - 8:15 pmLHR-SAT
19h 45m2 stops
United Airlines Logo
9:55 am - 5:55 amSAT-LHR
14h 00m2 stops
$1,042United Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Lufthansa Logo
10:00 am - 5:47 pmLHR-SAT
13h 47m1 stop
Lufthansa Logo
4:14 pm - 10:15 amSAT-LHR
12h 01m1 stop
$1,047Lufthansa
Find Deal
Wed, Dec 3 - Wed, Dec 10
Lufthansa Logo
12:05 pm - 8:15 pmLHR-SAT
14h 10m1 stop
Lufthansa Logo
2:14 pm - 7:30 amSAT-LHR
11h 16m1 stop
$1,059Lufthansa
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Tue, Nov 25 - Mon, Dec 1
Air Canada Logo
1:25 pm - 8:48 amLHR-SAT
25h 23m2 stops
Air Canada Logo
7:00 am - 7:10 amSAT-LHR
18h 10m2 stops
$1,061Air Canada
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Mon, Nov 24 - Tue, Dec 2
United Airlines Logo
10:00 am - 7:37 pmLHR-SAT
15h 37m1 stop
United Airlines Logo
2:04 pm - 7:55 amSAT-LHR
11h 51m1 stop
$1,070United Airlines
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Mon, Nov 17 - Mon, Dec 1
Air Canada Logo
1:25 pm - 12:28 pmLHR-SAT
29h 03m2 stops
Air Canada Logo
7:00 am - 7:10 amSAT-LHR
18h 10m2 stops
$1,100Air Canada
Find Deal
Thu, Dec 4 - Thu, Dec 11

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
Nov 25
LHR10:20 amLondon Heathrow
19h 57m
2 stops
SAT12:17 amSan Antonio
Dec 1
SAT2:46 pmSan Antonio
24h 54m
2 stops
LHR9:40 pmLondon Heathrow
$816
Find similar
Scandinavian Airlines
Nov 25
LHR7:05 amLondon Heathrow
23h 12m
3 stops
SAT12:17 amSan Antonio
Dec 1
SAT2:46 pmSan Antonio
22h 04m
3 stops
LHR6:50 pmLondon Heathrow
$847
Find similar
Scandinavian Airlines
Mar 5
LHR10:20 amLondon Heathrow
18h 57m
2 stops
SAT11:17 pmSan Antonio
Mar 9
SAT4:25 pmSan Antonio
20h 15m
2 stops
LHR5:40 pmLondon Heathrow
$852
Find similar

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
Dec 3
LHR6:30 amLondon Heathrow
19h 45m
2 stops
SAT8:15 pmSan Antonio
Dec 10
SAT9:55 amSan Antonio
14h 00m
2 stops
LHR5:55 amLondon Heathrow
$1,042
Find similar
United Airlines
Nov 17
LHR10:00 amLondon Heathrow
15h 37m
1 stop
SAT7:37 pmSan Antonio
Dec 1
SAT2:04 pmSan Antonio
11h 51m
1 stop
LHR7:55 amLondon Heathrow
$1,070
Find similar
United Airlines
Nov 24
LHR10:00 amLondon Heathrow
13h 47m
1 stop
SAT5:47 pmSan Antonio
Dec 2
SAT2:22 pmSan Antonio
11h 08m
1 stop
LHR7:30 amLondon Heathrow
$1,072
Find similar

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 October 20, 2025.
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 11/25

10:20 am-12:17 am

2 stops19h 57m

San Antonio

Mon 12/1

2:46 pm-9:40 pm

2 stops24h 54m

$816

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 12/3

12:15 pm-1:00 pm

3 stops30h 45m

San Antonio

Wed 12/10

7:00 am-10:50 am

3 stops21h 50m

$840

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 11/19

1:25 pm-6:32 pm

3 stops35h 07m

San Antonio

Sun 11/23

7:37 pm-7:10 am

3 stops29h 33m

$843

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 11/25

7:05 am-12:17 am

3 stops23h 12m

San Antonio

Mon 12/1

2:46 pm-6:50 pm

3 stops22h 04m

$847

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 12/3

6:30 am-8:15 pm

2 stops19h 45m

San Antonio

Wed 12/10

9:55 am-5:55 am

2 stops14h 00m

$1,042

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 12/3

10:00 am-5:47 pm

1 stop13h 47m

San Antonio

Wed 12/10

4:14 pm-10:15 am

1 stop12h 01m

$1,047

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 11/25

12:05 pm-8:15 pm

1 stop14h 10m

San Antonio

Mon 12/1

2:14 pm-7:30 am

1 stop11h 16m

$1,059

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 11/24

1:25 pm-8:48 am

2 stops25h 23m

San Antonio

Tue 12/2

7:00 am-7:10 am

2 stops18h 10m

$1,061

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 11/17

10:00 am-7:37 pm

1 stop15h 37m

San Antonio

Mon 12/1

2:04 pm-7:55 am

1 stop11h 51m

$1,070

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 12/4

1:25 pm-12:28 pm

2 stops29h 03m

San Antonio

Thu 12/11

7:00 am-7:10 am

2 stops18h 10m

$1,100

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 January instead. Flights to San Antonio in January, while not as cheap as those in March, still average around $817.

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 Heathrow Airport 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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $1,043 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 $857 on momondo.

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

As of October 2025, prices for London Heathrow Airport to San Antonio flights are approximately 12% more expensive 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

Direct flights

None
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 33m.

  • 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
7,461 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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