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Cheap flights from London Heathrow Airport to San Antonio from £409

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 11/5. 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
19:30 - 23:48
LHR
-
SAT
34h 18m
2 stops
Scandinavian Airlines Logo
12:10 - 18:30
SAT
-
LHR
24h 20m
2 stops
£681Scandinavian Airlines
Wed, 20 May - Mon, 31 Aug
Scandinavian Airlines Logo
18:40 - 23:52
LHR
-
SAT
35h 12m
2 stops
Scandinavian Airlines Logo
14:40 - 17:40
SAT
-
LHR
21h 00m
2 stops
£682Scandinavian Airlines
Tue, 9 Jun - Mon, 15 Jun
Scandinavian Airlines Logo
06:40 - 23:48
LHR
-
SAT
23h 08m
2 stops
Scandinavian Airlines Logo
12:10 - 09:20
SAT
-
LHR
39h 10m
2 stops
£698Scandinavian Airlines
Thu, 21 May - Sun, 30 Aug
Multiple Airlines Logo
13:05 - 18:02
LHR
-
SAT
34h 57m
3 stops
Multiple Airlines Logo
19:42 - 11:55
SAT
-
LHR
34h 13m
3 stops
£709Multiple Airlines
Thu, 11 Jun - Mon, 22 Jun
Scandinavian Airlines Logo
18:40 - 00:15
LHR
-
SAT
35h 35m
2 stops
Scandinavian Airlines Logo
14:10 - 17:40
SAT
-
LHR
21h 30m
2 stops
£732Scandinavian Airlines
Thu, 10 Sep - Mon, 14 Sep
Scandinavian Airlines Logo
06:40 - 00:15
LHR
-
SAT
23h 35m
2 stops
Scandinavian Airlines Logo
14:10 - 16:00
SAT
-
LHR
19h 50m
2 stops
£736Scandinavian Airlines
Thu, 10 Sep - Mon, 14 Sep
Multiple Airlines Logo
18:45 - 21:13
LHR
-
SAT
32h 28m
2 stops
Multiple Airlines Logo
12:10 - 06:45
SAT
-
LHR
12h 35m
1 stop
£740Multiple Airlines
Tue, 23 Jun - Tue, 11 Aug
Multiple Airlines Logo
19:50 - 21:13
LHR
-
SAT
31h 23m
2 stops
Multiple Airlines Logo
17:50 - 13:05
SAT
-
LHR
13h 15m
1 stop
£740Multiple Airlines
Tue, 23 Jun - Tue, 11 Aug
Multiple Airlines Logo
19:50 - 21:13
LHR
-
SAT
31h 23m
2 stops
Multiple Airlines Logo
12:15 - 07:15
SAT
-
LHR
13h 00m
1 stop
£742Multiple Airlines
Tue, 23 Jun - Tue, 11 Aug
Multiple Airlines Logo
19:50 - 21:13
LHR
-
SAT
31h 23m
2 stops
Multiple Airlines Logo
18:15 - 12:10
SAT
-
LHR
11h 55m
1 stop
£742Multiple Airlines
Tue, 23 Jun - Tue, 11 Aug

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Air Canada flights from London Heathrow Airport to San Antonio

Our best Air Canada deals on London Heathrow Airport to San Antonio flight tickets
Air Canada
12 Jun
LHR08:30London Heathrow
18h 48m
1 stop
SAT21:18San Antonio
16 Jun
SAT08:30San Antonio
18h 05m
1 stop
LHR08:35London Heathrow
£829
Air Canada
12 Jun
LHR08:30London Heathrow
18h 48m
1 stop
SAT21:18San Antonio
16 Jun
SAT08:30San Antonio
18h 05m
1 stop
LHR08:35London Heathrow
£830
Air Canada
14 May
LHR09:30London Heathrow
29h 12m
3 stops
SAT08:42San Antonio
3 Aug
SAT08:53San Antonio
19h 07m
2 stops
LHR10:00London Heathrow
£836

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
20 May
LHR19:30London Heathrow
34h 18m
2 stops
SAT23:48San Antonio
31 Aug
SAT12:10San Antonio
24h 20m
2 stops
LHR18:30London Heathrow
£681
Scandinavian Airlines
9 Jun
LHR18:40London Heathrow
35h 12m
2 stops
SAT23:52San Antonio
15 Jun
SAT14:40San Antonio
21h 00m
2 stops
LHR17:40London Heathrow
£682
Scandinavian Airlines
21 May
LHR06:40London Heathrow
23h 08m
2 stops
SAT23:48San Antonio
30 Aug
SAT12:10San Antonio
39h 10m
2 stops
LHR09:20London Heathrow
£698

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 2 May 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

Wed 20/5

19:30-23:48

2 stops34h 18m

San Antonio

Mon 31/8

12:10-18:30

2 stops24h 20m

£681

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 9/6

18:40-23:52

2 stops35h 12m

San Antonio

Mon 15/6

14:40-17:40

2 stops21h 00m

£682

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 21/5

06:40-23:48

2 stops23h 08m

San Antonio

Sun 30/8

12:10-09:20

2 stops39h 10m

£698

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 11/6

13:05-18:02

3 stops34h 57m

San Antonio

Mon 22/6

19:42-11:55

3 stops34h 13m

£709

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 10/9

18:40-00:15

2 stops35h 35m

San Antonio

Mon 14/9

14:10-17:40

2 stops21h 30m

£732

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 10/9

06:40-00:15

2 stops23h 35m

San Antonio

Mon 14/9

14:10-16:00

2 stops19h 50m

£736

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 23/6

18:45-21:13

2 stops32h 28m

San Antonio

Tue 11/8

12:10-06:45

1 stop12h 35m

£740

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 23/6

19:50-21:13

2 stops31h 23m

San Antonio

Tue 11/8

17:50-13:05

1 stop13h 15m

£740

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 23/6

19:50-21:13

2 stops31h 23m

San Antonio

Tue 11/8

12:15-07:15

1 stop13h 00m

£742
Fastest return journey

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 23/6

19:50-21:13

2 stops31h 23m

San Antonio

Tue 11/8

18:15-12:10

1 stop11h 55m

£742

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 January is, on average, the cheapest month to fly to San Antonio from London Heathrow Airport, with most prices found around £730. If you aren’t able to travel to San Antonio during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £740.

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 £863 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 £741 on momondo.

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

You could potentially save up to 7% 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 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

14h 47m

Direct flights

None
The fastest flight from London Heathrow Airport to San Antonio takes 14h 47m
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 14h 47m 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 £334Free CancellationRating
7.4
9,682 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom £548Free CancellationRating
7.4
1,767 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom £577Free CancellationRating
7.6
1,392 reviews
Search Finnair flights
Virgin AtlanticPriceFrom £679Free CancellationRating
7.4
688 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £697Free CancellationRating
6.7
7,940 reviews
Search British Airways flights
LufthansaPriceFrom £698Free CancellationRating
6.8
7,964 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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