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Cheap flights from London Heathrow Airport to San Antonio from £444

LHR — SAT
30 Sep — 7 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to San Antonio

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to San Antonio

Mon 5/1006:40 -
2 stops20h 34m
Tue 20/1013:41 -
2 stops20h 19m
Deal found 27/8£587
Mon 14/1206:40 -
2 stops23h 56m
Mon 11/114:10 -
2 stops19h 50m
Deal found 27/8£589
Tue 20/1006:40 -
2 stops23h 53m
Wed 28/1016:29 -
2 stops20h 11m
Deal found 27/8£594
Tue 13/1006:40 -
2 stops23h 53m
Tue 20/1013:41 -
2 stops22h 49m
Deal found 29/8£600
Tue 27/1019:30 -
2 stops34h 03m
Fri 30/1016:29 -
2 stops21h 01m
Deal found 29/8£601

Find flight deals from Heathrow to San Antonio

Round-trip from

£587

One-way from

£444

Popular in

December

Cheapest in

February

Average price

£1,174
Scandinavian Airlines
  • Scandinavian Airlines
  • 5/10-20/10
  • 4 total stops
  • 40h 53m total
  • London to San Antonio
Search Deals
22/10
  • 22/10
  • 2 total stops
  • 21h 19m total
  • London to San Antonio
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
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 London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Mon 15/2

06:40-22:27

2 stops21h 47m

San Antonio

Sun 21/2

16:10-21:40

2 stops23h 30m

£592

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Tue 20/10

06:40-00:33

2 stops23h 53m

San Antonio

Wed 28/10

16:29-17:40

2 stops20h 11m

£594

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Mon 5/10

06:40-21:14

2 stops20h 34m

San Antonio

Tue 20/10

13:41-18:50

3 stops23h 09m

£595

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Tue 13/10

06:40-00:33

2 stops23h 53m

San Antonio

Tue 20/10

13:41-18:30

2 stops22h 49m

£600

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Tue 27/10

19:30-00:33

2 stops34h 03m

San Antonio

Fri 30/10

16:29-18:30

2 stops21h 01m

£601

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Tue 17/11

12:15-23:05

2 stops16h 50m

San Antonio

Fri 4/12

05:40-10:50

2 stops23h 10m

£757

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Thu 1/10

19:30-21:19

2 stops31h 49m

San Antonio

Mon 30/11

13:46-16:00

2 stops20h 14m

£810

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Fri 2/10

06:40-21:19

3 stops20h 39m

San Antonio

Sat 17/10

14:00-16:00

2 stops20h 00m

£866
Fastest return journey

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Sat 12/9

06:55-21:16

2 stops20h 21m

San Antonio

Tue 15/9

09:30-07:55

1 stop16h 25m

£881

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Tue 15/9

19:30-00:13

2 stops34h 43m

San Antonio

Sun 20/9

13:55-09:20

2 stops37h 25m

£896

Flights are sorted by cheapest return flights first.

Deals found on 30/8

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

Best time to book a flight from Heathrow to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Heathrow with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to San Antonio

How far ahead should I book a flight from London Heathrow Airport to San Antonio?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to San Antonio, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to San Antonio?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of £792). Flying from London Heathrow Airport to San Antonio in December is currently the most expensive (average of £1,247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from London Heathrow Airport to San Antonio?

Airfare is below average for this route at the moment.

London Heathrow Airport to San Antonio flights typically cost between £960 and £1,169 in October.
The cheapest return price found within the last 5 days was £587 on Scandinavian Airlines (5 Oct–20 Oct).

Reviews of airlines servicing San Antonio

See what other customers who have flown with Scandinavian Airlines,United Airlines, andVirgin Atlantic from London Heathrow Airport to San Antonio have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,969 reviews
Check prices

Comfort

7.4

Boarding

7.7

Crew

8.0

Entertainment

6.8

Overall

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.
Scandinavian Airlines
7.4
Good
1,969 reviews
Scandinavian Airlines
7.4
Good
1,969 reviews
Check prices

Comfort

7.4

Boarding

7.7

Crew

8.0

Entertainment

6.8

Overall

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.
United Airlines
7.4
Good
10,147 reviews
Scandinavian Airlines
7.4
Good
1,969 reviews
Check prices

Comfort

7.4

Boarding

7.7

Crew

8.0

Entertainment

6.8

Overall

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.
Virgin Atlantic
7.4
Good
695 reviews
Scandinavian Airlines
7.4
Good
1,969 reviews
Check prices

Comfort

7.4

Boarding

7.7

Crew

8.0

Entertainment

6.8

Overall

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.
Lufthansa
6.8
Okay
8,227 reviews
Scandinavian Airlines
7.4
Good
1,969 reviews
Check prices

Comfort

7.4

Boarding

7.7

Crew

8.0

Entertainment

6.8

Overall

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.
British Airways
6.7
Okay
8,198 reviews
Scandinavian Airlines
7.4
Good
1,969 reviews
Check prices

Comfort

7.4

Boarding

7.7

Crew

8.0

Entertainment

6.8

Overall

7.4

Food

6.8

Reviews

1 / 20
10.0
Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Related info for your journey

  • What airport do you fly into for flights to San Antonio from London Heathrow?

    If you book a flight to San Antonio from London Heathrow, you will be flying to San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio. There are 0 flights from London Heathrow to San Antonio per day from 5 different airlines.

  • How long is the flight from London Heathrow Airport to San Antonio?

    For as low as £592, Scandinavian Airlines can have you in San Antonio from London Heathrow Airport in 21h 47m. The distance from London Heathrow Airport to San Antonio is about 4967 mi.

  • What are the cheapest airlines flying from London Heathrow Airport to San Antonio round-trip?

    According to our current data, United Airlines (£242), Scandinavian Airlines (£554), and Virgin Atlantic (£706) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 76% lower than the current average price 3 months from now.

  • Can I find deals for flights from Heathrow to San Antonio that include hotel bookings?

    Yes. In addition to deals on Heathrow to San Antonio flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to San Antonio.

  • Can I find deals for business class flights from Heathrow to San Antonio?

    Yes. Cheapflights offers flight deals from Heathrow to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to San Antonio?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of £792). Flying from London Heathrow Airport to San Antonio in December is currently the most expensive (average of £1,247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Heathrow to San Antonio

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£242Average£845FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Scandinavian AirlinesCheapest£554Average£650FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Virgin AtlanticCheapest£706Average£1,130FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£714Average£1,037FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£720Average£974FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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Can Cheapflights find flights from Heathrow to San Antonio with no change fees?

Certainly. Search results for flights to San Antonio from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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