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Cheap flights from London Heathrow Airport to San Antonio from £463

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 6/11. 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

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Find the cheapest flights from London Heathrow Airport to San Antonio

Cheap return flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
10:20 - 00:17LHR-SAT
19h 57m2 stops
Scandinavian Airlines Logo
14:46 - 21:40SAT-LHR
24h 54m2 stops
£607Scandinavian Airlines
Find Deal
Tue, 25 Nov - Mon, 1 Dec
Multiple Airlines Logo
12:15 - 13:00LHR-SAT
30h 45m3 stops
Multiple Airlines Logo
07:00 - 10:50SAT-LHR
21h 50m3 stops
£625Multiple Airlines
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Wed, 3 Dec - Wed, 10 Dec
Multiple Airlines Logo
13:25 - 18:32LHR-SAT
35h 07m3 stops
Multiple Airlines Logo
19:37 - 07:10SAT-LHR
29h 33m3 stops
£628Multiple Airlines
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Wed, 19 Nov - Sun, 23 Nov
United Airlines Logo
08:30 - 23:00LHR-SAT
20h 30m2 stops
United Airlines Logo
14:22 - 07:30SAT-LHR
11h 08m1 stop
£776United Airlines
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Lufthansa Logo
10:00 - 17:47LHR-SAT
13h 47m1 stop
Lufthansa Logo
16:14 - 10:15SAT-LHR
12h 01m1 stop
£779Lufthansa
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Wed, 3 Dec - Wed, 10 Dec
Lufthansa Logo
12:05 - 20:15LHR-SAT
14h 10m1 stop
Lufthansa Logo
14:14 - 07:30SAT-LHR
11h 16m1 stop
£788Lufthansa
Find Deal
Tue, 25 Nov - Mon, 1 Dec
Air Canada Logo
13:25 - 08:48LHR-SAT
25h 23m2 stops
Air Canada Logo
07:00 - 07:10SAT-LHR
18h 10m2 stops
£790Air Canada
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Mon, 24 Nov - Tue, 2 Dec
United Airlines Logo
10:00 - 19:37LHR-SAT
15h 37m1 stop
United Airlines Logo
14:04 - 07:55SAT-LHR
11h 51m1 stop
£797United Airlines
Find Deal
Mon, 17 Nov - Mon, 1 Dec
Finnair Logo
10:20 - 22:54LHR-SAT
18h 34m2 stops
Finnair Logo
18:48 - 12:10SAT-LHR
11h 22m1 stop
£811Finnair
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Mon, 13 Apr - Mon, 4 May
Air Canada Logo
13:25 - 12:28LHR-SAT
29h 03m2 stops
Air Canada Logo
07:00 - 07:10SAT-LHR
18h 10m2 stops
£819Air Canada
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Thu, 4 Dec - Thu, 11 Dec

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
3 Dec
LHR08:30London Heathrow
20h 30m
2 stops
SAT23:00San Antonio
10 Dec
SAT14:22San Antonio
11h 08m
1 stop
LHR07:30London Heathrow
£776
Find similar
United Airlines
17 Nov
LHR10:00London Heathrow
15h 37m
1 stop
SAT19:37San Antonio
1 Dec
SAT14:04San Antonio
11h 51m
1 stop
LHR07:55London Heathrow
£797
Find similar
United Airlines
24 Nov
LHR12:05London Heathrow
14h 10m
1 stop
SAT20:15San Antonio
1 Dec
SAT14:04San Antonio
11h 51m
1 stop
LHR07:55London Heathrow
£798
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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
25 Nov
LHR10:20London Heathrow
19h 57m
2 stops
SAT00:17San Antonio
1 Dec
SAT14:46San Antonio
24h 54m
2 stops
LHR21:40London Heathrow
£607
Find similar
Scandinavian Airlines
25 Nov
LHR07:05London Heathrow
23h 12m
3 stops
SAT00:17San Antonio
1 Dec
SAT14:46San Antonio
22h 04m
3 stops
LHR18:50London Heathrow
£631
Find similar
Scandinavian Airlines
5 Mar
LHR10:20London Heathrow
18h 57m
2 stops
SAT23:17San Antonio
9 Mar
SAT16:25San Antonio
18h 35m
2 stops
LHR16:00London Heathrow
£634
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 20 October 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 25/11

10:20-00:17

2 stops19h 57m

San Antonio

Mon 1/12

14:46-21:40

2 stops24h 54m

£607

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/12

12:15-13:00

3 stops30h 45m

San Antonio

Wed 10/12

07:00-10:50

3 stops21h 50m

£625

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 19/11

13:25-18:32

3 stops35h 07m

San Antonio

Sun 23/11

19:37-07:10

3 stops29h 33m

£628

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/12

08:30-23:00

2 stops20h 30m

San Antonio

Wed 10/12

14:22-07:30

1 stop11h 08m

£776

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/12

10:00-17:47

1 stop13h 47m

San Antonio

Wed 10/12

16:14-10:15

1 stop12h 01m

£779

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 25/11

12:05-20:15

1 stop14h 10m

San Antonio

Mon 1/12

14:14-07:30

1 stop11h 16m

£788

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 24/11

13:25-08:48

2 stops25h 23m

San Antonio

Tue 2/12

07:00-07:10

2 stops18h 10m

£790

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 17/11

10:00-19:37

1 stop15h 37m

San Antonio

Mon 1/12

14:04-07:55

1 stop11h 51m

£797

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 13/4

10:20-22:54

2 stops18h 34m

San Antonio

Mon 4/5

18:48-12:10

1 stop11h 22m

£811

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 4/12

13:25-12:28

2 stops29h 03m

San Antonio

Thu 11/12

07:00-07:10

2 stops18h 10m

£819

Flights are sorted by cheapest return 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?

The month of March is, on average, the cheapest month to fly to San Antonio from London Heathrow Airport, with most prices found around £607. If you aren’t able to travel to San Antonio during the month of March, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £608.

What is the cheapest day to depart on your flight to San Antonio?

According to our data, Wednesday is the cheapest day to fly to San Antonio from London Heathrow Airport. The lowest ticket price found for a Wednesday departure recently was £621. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to San Antonio for around £692.

What is the cheapest time of day to depart on your flight to San Antonio?

At midday is the cheapest time of day to fly from London Heathrow Airport to San Antonio when you can find flight prices for as low as £617. Flying to San Antonio at midday is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around £692. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 £776 when searching weeks before you fly. 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 £638 on momondo.

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

You could potentially save up to 27% 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 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 return 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.
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  • How far is London Heathrow to San Antonio by plane?

    San Antonio is 4973.6 mi away from London Heathrow. Typically, this will take 13h 33m by plane in normal conditions.

  • 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 were last updated today.

  • 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 travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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
FinnairPriceFrom £506Free CancellationRating
7.6
1,333 reviews
Search Finnair flights
IberiaPriceFrom £534Free CancellationRating
7.0
2,996 reviews
Search Iberia flights
Scandinavian AirlinesPriceFrom £579Free CancellationRating
7.4
1,533 reviews
Search Scandinavian Airlines flights
Virgin AtlanticPriceFrom £673Free CancellationRating
7.5
670 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £687Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights
British AirwaysPriceFrom £706Free CancellationRating
6.7
7,461 reviews
Search British Airways flights
LufthansaPriceFrom £706Free CancellationRating
6.8
7,508 reviews
Search Lufthansa flights

Travelling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels

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. All flights to San Antonio from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to San Antonio?

Once all potential London to San Antonio flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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 not ready to book a flight from London to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.

An easier way to manage your San Antonio trip

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