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Cheap flights from London Heathrow Airport to San Antonio from £299

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 6/3. 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.
Multiple Airlines Logo
19:30 - 22:29
LHR
-
SAT
32h 59m
2 stops
Multiple Airlines Logo
06:00 - 06:30
SAT
-
LHR
18h 30m
2 stops
£539Multiple Airlines
Tue, 5 May - Tue, 12 May
Multiple Airlines Logo
13:40 - 22:29
LHR
-
SAT
14h 49m
1 stop
Multiple Airlines Logo
06:00 - 05:20
SAT
-
LHR
17h 20m
1 stop
£547Multiple Airlines
Tue, 5 May - Tue, 12 May
Multiple Airlines Logo
10:50 - 23:59
LHR
-
SAT
19h 09m
1 stop
Multiple Airlines Logo
06:00 - 06:50
SAT
-
LHR
19h 50m
2 stops
£548Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
10:40 - 23:59
LHR
-
SAT
19h 19m
2 stops
Multiple Airlines Logo
06:00 - 09:30
SAT
-
LHR
22h 30m
2 stops
£560Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
09:10 - 23:59
LHR
-
SAT
20h 49m
2 stops
Multiple Airlines Logo
06:00 - 10:25
SAT
-
LHR
23h 25m
2 stops
£590Multiple Airlines
Wed, 4 Mar - Sun, 8 Mar
Multiple Airlines Logo
18:30 - 22:29
LHR
-
SAT
33h 59m
2 stops
Multiple Airlines Logo
08:35 - 06:35
SAT
-
LHR
16h 00m
1 stop
£593Multiple Airlines
Tue, 5 May - Tue, 12 May
Multiple Airlines Logo
10:55 - 22:29
LHR
-
SAT
17h 34m
2 stops
Multiple Airlines Logo
06:00 - 05:20
SAT
-
LHR
17h 20m
1 stop
£595Multiple Airlines
Sat, 9 May - Tue, 12 May
Multiple Airlines Logo
19:30 - 23:52
LHR
-
SAT
34h 22m
2 stops
Multiple Airlines Logo
06:30 - 20:50
SAT
-
LHR
32h 20m
2 stops
£598Multiple Airlines
Tue, 3 Feb - Sun, 8 Feb
Scandinavian Airlines Logo
17:00 - 22:30
LHR
-
SAT
35h 30m
2 stops
Scandinavian Airlines Logo
15:24 - 18:30
SAT
-
LHR
21h 06m
2 stops
£600Scandinavian Airlines
Wed, 8 Apr - Tue, 14 Apr
Multiple Airlines Logo
09:10 - 23:59
LHR
-
SAT
20h 49m
2 stops
Multiple Airlines Logo
06:00 - 06:30
SAT
-
LHR
42h 30m
2 stops
£603Multiple Airlines
Wed, 25 Feb - Thu, 5 Mar

British Airways flights from London Heathrow Airport to San Antonio

Our best British Airways deals on London Heathrow Airport to San Antonio flight tickets
British Airways
2 Mar
LHR07:30London Heathrow
19h 20m
2 stops
SAT20:50San Antonio
9 Mar
SAT17:36San Antonio
11h 24m
1 stop
LHR10:00London Heathrow
£705
British Airways
1 Mar
LHR15:45London Heathrow
35h 04m
2 stops
SAT20:49San Antonio
10 Mar
SAT15:15San Antonio
12h 00m
1 stop
LHR08:15London Heathrow
£713
British Airways
2 Mar
LHR08:20London Heathrow
13h 40m
1 stop
SAT16:00San Antonio
11 Mar
SAT17:53San Antonio
13h 07m
1 stop
LHR12:00London Heathrow
£725

Delta flights from London Heathrow Airport to San Antonio

Our best Delta deals on London Heathrow Airport to San Antonio flight tickets
Delta
13 Apr
LHR06:30London Heathrow
16h 47m
2 stops
SAT17:17San Antonio
4 May
SAT10:46San Antonio
17h 34m
2 stops
LHR10:20London Heathrow
£741
Delta
4 Mar
LHR10:10London Heathrow
16h 15m
2 stops
SAT20:25San Antonio
11 Mar
SAT13:00San Antonio
12h 20m
1 stop
LHR06:20London Heathrow
£742
Delta
1 Mar
LHR12:30London Heathrow
13h 55m
1 stop
SAT20:25San Antonio
9 Mar
SAT16:29San Antonio
11h 31m
1 stop
LHR09:00London Heathrow
£772

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 21 January 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

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 5/5

19:30-22:29

2 stops32h 59m

San Antonio

Tue 12/5

06:00-06:30

2 stops18h 30m

£539

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 5/5

13:40-22:29

1 stop14h 49m

San Antonio

Tue 12/5

06:00-05:20

1 stop17h 20m

£547

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 4/3

10:50-23:59

1 stop19h 09m

San Antonio

Wed 11/3

06:00-06:50

2 stops19h 50m

£548

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 4/3

10:40-23:59

2 stops19h 19m

San Antonio

Wed 11/3

06:00-09:30

2 stops22h 30m

£560

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 4/3

09:10-23:59

2 stops20h 49m

San Antonio

Sun 8/3

06:00-10:25

2 stops23h 25m

£590

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 5/5

18:30-22:29

2 stops33h 59m

San Antonio

Tue 12/5

08:35-06:35

1 stop16h 00m

£593

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 9/5

10:55-22:29

2 stops17h 34m

San Antonio

Tue 12/5

06:00-05:20

1 stop17h 20m

£595

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 3/2

19:30-23:52

2 stops34h 22m

San Antonio

Sun 8/2

06:30-20:50

2 stops32h 20m

£598

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 8/4

17:00-22:30

2 stops35h 30m

San Antonio

Tue 14/4

15:24-18:30

2 stops21h 06m

£600

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 25/2

09:10-23:59

2 stops20h 49m

San Antonio

Thu 5/3

06:00-06:30

2 stops42h 30m

£603

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 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 £599. If you aren’t able to travel to San Antonio during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £723.

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 £828 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 £698 on momondo.

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

You could potentially save up to 5% 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 January 2026, prices for London Heathrow Airport to San Antonio flights are approximately 3% cheaper 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

Fastest flight time

18h 26m

Direct flights

None
The fastest flight from London Heathrow Airport to San Antonio takes 18h 26m
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?

    San Antonio is 4973.6 mi away from London Heathrow. Typically, this will take 18h 26m 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 £486Free CancellationRating
7.6
1,351 reviews
Search Finnair flights
Scandinavian AirlinesPriceFrom £579Free CancellationRating
7.3
1,658 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom £666Free CancellationRating
7.4
9,186 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £691Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £705Free CancellationRating
6.7
7,690 reviews
Search British Airways flights
LufthansaPriceFrom £706Free CancellationRating
6.8
7,734 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.

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