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

LHR — SAT
10 Dec — 17 Dec1
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

Wed 11/1110:20 -
2 stops19h 43m
Thu 11/214:19 -
2 stops22h 11m
Deal found 9/11£679
Sun 6/1206:40 -
2 stops21h 39m
Wed 9/1210:54 -
2 stops23h 06m
Deal found 6/11£695
Sun 6/1206:40 -
2 stops23h 55m
Sun 13/1210:54 -
2 stops24h 46m
Deal found 7/11£744
Mon 7/1212:15 -
3 stops35h 46m
Mon 14/1220:47 -
3 stops32h 03m
Deal found 9/11£747
Mon 7/1212:10 -
3 stops35h 51m
Mon 21/1211:48 -
3 stops27h 17m
Deal found 6/11£767
Mon 9/1118:40 -
2 stops35h 23m
Mon 16/1111:04 -
2 stops28h 36m
Deal found 7/11£777
Mon 7/1208:50 -
2 stops21h 05m
Mon 14/1207:34 -
2 stops18h 31m
Deal found 9/11£791
Sun 6/1208:50 -
2 stops21h 05m
Sun 13/1207:34 -
2 stops20h 36m
Deal found 7/11£796
Sat 14/1107:50 -
2 stops22h 05m
Thu 31/1205:49 -
2 stops21h 16m
Deal found 7/11£803
Tue 17/1112:15 -
2 stops16h 55m
Tue 9/205:35 -
2 stops23h 15m
Deal found 9/11£808
Tue 1/1220:45 -
2 stops33h 10m
Sun 6/1207:34 -
2 stops19h 31m
Deal found 9/11£813
Tue 17/1108:50 -
2 stops21h 05m
Thu 31/1205:49 -
2 stops21h 16m
Deal found 10/11£818

Find flight deals from Heathrow to San Antonio

Round-trip from

£557

One-way from

£409

Popular in

December

Cheapest in

April

Average price

£984
Scandinavian Airlines
  • Scandinavian Airlines
  • 5/3-16/3
  • 4 total stops
  • 48h 31m total
  • London to San Antonio
Search Deals
12/4-31/12
  • 12/4-31/12
  • 3 total stops
  • 44h 10m total
  • London to San Antonio
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 1/3

20:35-19:27

3 stops52h 52m

San Antonio

Wed 31/12

00:00-07:00

Nonstop0h 00m

£480

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Wed 25/11

18:30-21:16

3 stops56h 46m

San Antonio

Wed 31/12

00:00-07:00

Nonstop0h 00m

£556

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Mon 12/4

08:50-23:59

2 stops21h 09m

San Antonio

Wed 31/12

00:00-07:00

Nonstop0h 00m

£571

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Mon 1/3

07:50-23:49

2 stops21h 59m

San Antonio

Wed 31/12

00:00-07:00

Nonstop0h 00m

£579

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Sun 7/3

10:20-23:18

2 stops18h 58m

San Antonio

Tue 16/3

16:10-21:35

3 stops24h 25m

£599

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Mon 1/3

07:05-00:41

3 stops23h 36m

San Antonio

Tue 16/3

16:10-18:30

2 stops21h 20m

£599

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Mon 21/12

20:35-10:53

3 stops44h 18m

San Antonio

Wed 31/12

00:00-07:00

Nonstop0h 00m

£600

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Wed 20/1

06:40-00:45

2 stops24h 05m

San Antonio

Sun 24/1

16:00-18:30

2 stops20h 30m

£600

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Wed 30/12

07:50-10:53

3 stops57h 03m

San Antonio

Wed 31/12

00:00-07:00

Nonstop0h 00m

£634

LondonSan Antonio

LHR London Heathrow - SAT San Antonio

LHRSAT

London Heathrow

Fri 26/2

12:20-18:38

1 stop36h 18m

San Antonio

Wed 31/12

00:00-07:00

Nonstop0h 00m

£635

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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, April is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of £758). Flying from London Heathrow Airport to San Antonio in December is currently the most expensive (average of £1,263). 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 £914 and £1,004 in March.
The cheapest return price found within the last 5 days was £557 on Scandinavian Airlines (5 Mar–16 Mar).

Reviews of airlines servicing San Antonio

See what other customers who have flown with Scandinavian Airlines,Virgin Atlantic, andLufthansa 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
7.5
Good
2,028 reviews
Check prices

Food

6.8

Boarding

7.7

Crew

8.1

Comfort

7.4

Overall

7.5

Entertainment

6.8

Reviews

1 / 20
6.0
Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.
Scandinavian Airlines
7.5
Good
2,028 reviews
Scandinavian Airlines
7.5
Good
2,028 reviews
Check prices

Food

6.8

Boarding

7.7

Crew

8.1

Comfort

7.4

Overall

7.5

Entertainment

6.8

Reviews

1 / 20
6.0
Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.
Virgin Atlantic
7.5
Good
698 reviews
Scandinavian Airlines
7.5
Good
2,028 reviews
Check prices

Food

6.8

Boarding

7.7

Crew

8.1

Comfort

7.4

Overall

7.5

Entertainment

6.8

Reviews

1 / 20
6.0
Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.
Lufthansa
6.8
Okay
8,290 reviews
Scandinavian Airlines
7.5
Good
2,028 reviews
Check prices

Food

6.8

Boarding

7.7

Crew

8.1

Comfort

7.4

Overall

7.5

Entertainment

6.8

Reviews

1 / 20
6.0
Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.
British Airways
6.7
Okay
8,286 reviews
Scandinavian Airlines
7.5
Good
2,028 reviews
Check prices

Food

6.8

Boarding

7.7

Crew

8.1

Comfort

7.4

Overall

7.5

Entertainment

6.8

Reviews

1 / 20
6.0
Good

siavash,Oct 2026

CPH - JFK

I was seated in premium economy and I didn’t feel the crew being attentive or a warm sense of hospitality, the plane was clean. The seats were comfortable.

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 4 different airlines.

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

    For as low as £599, Scandinavian Airlines can have you in San Antonio from London Heathrow Airport in 18h 58m. The distance from London Heathrow Airport to San Antonio is about 4967 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    According to our current data, Scandinavian Airlines (£543), British Airways (£767), and Virgin Atlantic (£866) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 46% 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, April is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of £758). Flying from London Heathrow Airport to San Antonio in December is currently the most expensive (average of £1,263). 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 4 airlines flying from Heathrow to San Antonio

AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£543Average£621FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£767Average£1,023FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£866Average£1,180FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£929Average£1,036FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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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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