Cheap flights from London Heathrow Airport to San Antonio from £487

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to San Antonio are usually found in March or January, booked 54 days in advance, depart on a Saturday or Wednesday and return on a Monday

Cheap flight deals from Heathrow to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 October 2025.

Round-trip from

£594

One-way from

£487

Popular in

August

Cheapest in

March

Average price

£860
Scandinavian Airlines
  • Scandinavian Airlines
  • 23/1-13/2
  • 4 total stops
  • 63h 40m total
  • London to San Antonio
24/4
  • 24/4
  • 3 total stops
  • 19h 22m total
  • London to San Antonio
Highest demand for flights based on searches. 13% potential increase in price (£95 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Average for round-trip flights in October 2025

Find flight deals from Heathrow to San Antonio

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to San Antonio
Explore the most affordable flight options available from Heathrow to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.

Wed 3/1212:15LHR - SAT
3 stops30h 45mMultiple Airlines
Wed 10/1207:00SAT - LHR
3 stops21h 50mMultiple Airlines
Deal found 28/10£633
Sat 6/1211:10LHR - SAT
2 stops33h 05mMultiple Airlines
Sat 13/1215:10SAT - LHR
2 stops33h 20mMultiple Airlines
Deal found 29/10£652
Sat 22/1106:40LHR - SAT
2 stops23h 28mScandinavian Airlines
Sat 6/1214:00SAT - LHR
2 stops22h 30mScandinavian Airlines
Deal found 29/10£668
Tue 2/1220:00LHR - SAT
2 stops28h 32mMultiple Airlines
Wed 10/1207:00SAT - LHR
3 stops30h 30mMultiple Airlines
Deal found 29/10£731
Sun 14/1210:50LHR - SAT
1 stop33h 25mMultiple Airlines
Sun 21/1212:45SAT - LHR
2 stops36h 05mMultiple Airlines
Deal found 30/10£780
Wed 19/1113:25LHR - SAT
3 stops35h 07mMultiple Airlines
Sun 23/1120:33SAT - LHR
3 stops28h 37mMultiple Airlines
Deal found 29/10£782
Tue 2/1210:20LHR - SAT
2 stops37h 43mFinnair
Wed 10/1212:55SAT - LHR
1 stop16h 45mFinnair
Deal found 29/10£795
Mon 8/1214:50LHR - SAT
3 stops34h 09mMultiple Airlines
Tue 23/1214:39SAT - LHR
3 stops34h 31mMultiple Airlines
Deal found 29/10£798

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 31 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Antonio that are best for you.

Fly from

Heathrow

Fly to

San Antonio

Route

Depart

Return

Price

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 23/1

06:40-22:30

2 stops21h 50m

San Antonio

Fri 13/2

16:10-16:00

2 stops41h 50m

£594

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 5/3

06:40-23:17

2 stops22h 37m

San Antonio

Mon 9/3

16:25-16:00

2 stops18h 35m

£637

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 22/11

06:40-00:08

2 stops23h 28m

San Antonio

Sat 6/12

14:00-18:30

2 stops22h 30m

£668

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/12

14:30-13:00

2 stops28h 30m

San Antonio

Wed 10/12

07:00-10:50

3 stops21h 50m

£754

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 14/12

15:50-14:15

2 stops28h 25m

San Antonio

Sun 21/12

12:45-06:50

2 stops36h 05m

£754

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 7/2

08:40-22:27

2 stops19h 47m

San Antonio

Sat 14/2

06:00-06:45

1 stop18h 45m

£755

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 2/12

10:20-18:03

2 stops37h 43m

San Antonio

Wed 10/12

12:55-11:40

1 stop16h 45m

£795

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 13/4

09:30-19:36

2 stops16h 06m

San Antonio

Mon 4/5

10:00-07:15

2 stops15h 15m

£796

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 3/12

09:30-21:32

2 stops18h 02m

San Antonio

Wed 10/12

11:18-06:20

1 stop13h 02m

£802

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 26/4

09:50-23:12

3 stops19h 22m

£499

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 18 results
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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a return flight from Heathrow to San Antonio. Price data was last updated on 24 October 2025.

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 54 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 £448). Flying from London Heathrow Airport to San Antonio in July is currently the most expensive (average of £556). 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.

What is the cheapest time of day to fly from LHR to SAT?

Find hourly flight availability from Heathrow to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2025.

When flying from London Heathrow Airport to San Antonio, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 17% versus a flight in the evening.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated 31 October 2025.
See what other customers who have flown with Finnair, Virgin Atlantic, andScandinavian Airlines 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.

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • 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 7 different airlines.

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

    For as low as £594, Scandinavian Airlines can have you in San Antonio from London Heathrow Airport in 21h 50m. 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, Finnair (£516), Iberia (£544), and Scandinavian Airlines (£591) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 34% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to San Antonio one-way?

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as £537. However, be on the lookout for offers from British Airways and Lufthansa, as they are both options that can get you from London Heathrow Airport to San Antonio for a low price.

  • 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 £448). Flying from London Heathrow Airport to San Antonio in July is currently the most expensive (average of £556). 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

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Top 7 airlines flying from Heathrow to San Antonio

Discover the top 7 airlines that operate flights from Heathrow to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£516Average£640FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£544Average£822FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapest£591Average£778FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Virgin AtlanticCheapest£686Average£840FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£700Average£798FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£720Average£857FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£720Average£916FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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How does Cheapflights help users find flights from Heathrow to San Antonio?

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