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Cheap flights from London Heathrow Airport to San Antonio from £402

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 29/9. 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

Discover deals from 900+ travel sites with momondo.

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
06:40 - 00:28
LHR
-
SAT
23h 48m
2 stops
Scandinavian Airlines Logo
13:55 - 16:00
SAT
-
LHR
20h 05m
2 stops
£568Scandinavian Airlines
Mon, 7 Sep - Mon, 21 Sep
Scandinavian Airlines Logo
19:30 - 00:33
LHR
-
SAT
34h 03m
2 stops
Scandinavian Airlines Logo
13:46 - 16:00
SAT
-
LHR
20h 14m
2 stops
£571Scandinavian Airlines
Tue, 27 Oct - Mon, 16 Nov
Multiple Airlines Logo
09:30 - 21:14
LHR
-
SAT
17h 44m
2 stops
Multiple Airlines Logo
05:15 - 11:50
SAT
-
LHR
24h 35m
3 stops
£771Multiple Airlines
Fri, 11 Sep - Fri, 18 Sep
Multiple Airlines Logo
10:35 - 13:48
LHR
-
SAT
33h 13m
2 stops
Multiple Airlines Logo
12:39 - 19:40
SAT
-
LHR
25h 01m
3 stops
£771Multiple Airlines
Fri, 11 Sep - Fri, 18 Sep
Lufthansa Logo
18:00 - 19:53
LHR
-
SAT
31h 53m
2 stops
Lufthansa Logo
14:00 - 08:30
SAT
-
LHR
12h 30m
1 stop
£826Lufthansa
Mon, 7 Sep - Wed, 7 Oct
Lufthansa Logo
18:00 - 19:53
LHR
-
SAT
31h 53m
2 stops
Lufthansa Logo
07:35 - 05:55
SAT
-
LHR
16h 20m
2 stops
£826Lufthansa
Mon, 7 Sep - Wed, 7 Oct
Virgin Atlantic Logo
13:25 - 00:08
LHR
-
SAT
16h 43m
1 stop
Virgin Atlantic Logo
13:20 - 08:50
SAT
-
LHR
13h 30m
1 stop
£851Virgin Atlantic
Mon, 21 Sep - Mon, 28 Sep
United Airlines Logo
09:30 - 20:52
LHR
-
SAT
17h 22m
2 stops
United Airlines Logo
17:30 - 06:45
SAT
-
LHR
31h 15m
1 stop
£909United Airlines
Wed, 16 Sep - Sun, 20 Sep
Virgin Atlantic Logo
09:20 - 17:01
LHR
-
SAT
13h 41m
1 stop
Virgin Atlantic Logo
18:10 - 07:15
SAT
-
LHR
31h 05m
1 stop
£911Virgin Atlantic
Sun, 13 Sep - Sun, 20 Sep
United Airlines Logo
09:30 - 20:52
LHR
-
SAT
17h 22m
2 stops
United Airlines Logo
17:30 - 06:45
SAT
-
LHR
31h 15m
1 stop
£911United Airlines
Wed, 16 Sep - Sun, 20 Sep

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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
7 Sept
LHR06:40London Heathrow
23h 48m
2 stops
SAT00:28San Antonio
21 Sept
SAT13:55San Antonio
20h 05m
2 stops
LHR16:00London Heathrow
£568
Scandinavian Airlines
27 Aug
LHR06:40London Heathrow
23h 48m
2 stops
SAT00:28San Antonio
5 Sept
SAT14:43San Antonio
20h 57m
2 stops
LHR17:40London Heathrow
£571
Scandinavian Airlines
29 Aug
LHR06:40London Heathrow
20h 24m
2 stops
SAT21:04San Antonio
5 Sept
SAT14:43San Antonio
24h 57m
2 stops
LHR21:40London Heathrow
£576

Alaska Airlines flights from London Heathrow Airport to San Antonio

Our best Alaska Airlines deals on London Heathrow Airport to San Antonio flight tickets
Alaska Airlines
10 Aug
LHR17:00London Heathrow
18h 00m
1 stop
SAT05:00San Antonio
13 Aug
SAT16:44San Antonio
16h 21m
1 stop
LHR15:05London Heathrow
£1,459
Alaska Airlines
4 Aug
LHR17:00London Heathrow
18h 00m
1 stop
SAT05:00San Antonio
5 Sept
SAT17:23San Antonio
15h 42m
1 stop
LHR15:05London Heathrow
£1,494
Alaska Airlines
6 Aug
LHR17:00London Heathrow
18h 00m
1 stop
SAT05:00San Antonio
13 Aug
SAT16:44San Antonio
16h 21m
1 stop
LHR15:05London Heathrow
£1,500

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 1 August 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 return flight

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 7/9

06:40-00:28

2 stops23h 48m

San Antonio

Mon 21/9

13:55-16:00

2 stops20h 05m

£568

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 27/10

19:30-00:33

2 stops34h 03m

San Antonio

Mon 16/11

13:46-16:00

2 stops20h 14m

£571

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 11/9

09:30-21:14

2 stops17h 44m

San Antonio

Fri 18/9

05:15-11:50

3 stops24h 35m

£771

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 11/9

10:35-13:48

2 stops33h 13m

San Antonio

Fri 18/9

12:39-19:40

3 stops25h 01m

£771

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 7/9

18:00-19:53

2 stops31h 53m

San Antonio

Wed 7/10

14:00-08:30

1 stop12h 30m

£826

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 7/9

18:00-19:53

2 stops31h 53m

San Antonio

Wed 7/10

07:35-05:55

2 stops16h 20m

£826
Fastest return journey

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 21/9

13:25-00:08

1 stop16h 43m

San Antonio

Mon 28/9

13:20-08:50

1 stop13h 30m

£851

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 16/9

09:30-20:52

2 stops17h 22m

San Antonio

Sun 20/9

17:30-06:45

1 stop31h 15m

£909

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 13/9

09:20-17:01

1 stop13h 41m

San Antonio

Sun 20/9

18:10-07:15

1 stop31h 05m

£911

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 16/9

09:30-20:52

2 stops17h 22m

San Antonio

Sun 20/9

17:30-06:45

1 stop31h 15m

£911

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?

Prices are currently low for flights on this route.

Typical prices usually range from £831 to £1,223.
The lowest price recently found on this route was £568.

What is the cheapest month to fly to San Antonio?

The month of September is, on average, the cheapest month to fly to San Antonio from London Heathrow Airport, with most prices found around £734. If you aren’t able to travel to San Antonio during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £738.

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 £941 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 £624 on momondo.

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 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

Fastest flight time

15h 27m

Direct flights

None
The fastest flight from London Heathrow Airport to San Antonio takes 15h 27m
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?

    San Antonio is 4973.6 mi away from London Heathrow. Typically, this will take 15h 27m 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
United AirlinesPriceFrom £338Free CancellationRating
7.4
10,063 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom £557Free CancellationRating
7.4
1,910 reviews
Search Scandinavian Airlines flights
Virgin AtlanticPriceFrom £690Free CancellationRating
7.5
694 reviews
Search Virgin Atlantic flights
LufthansaPriceFrom £705Free CancellationRating
6.8
8,167 reviews
Search Lufthansa flights
British AirwaysPriceFrom £712Free CancellationRating
6.7
8,137 reviews
Search British Airways 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.

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