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Cheap flights from London Heathrow Airport to San Antonio from £294

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 24/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
20 Jul — 27 Jul1
1 adult

Cheapflights Tip: The best prices from London Heathrow to San Antonio are usually found in November or September, booked 79 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 15 July 2025.

Round-trip from

£611

One-way from

£294

Popular in

August

Cheapest in

November

Average price

£912
29/8-5/9
  • 29/8-5/9
  • 6 total stops
  • 59h 50m total
  • London to San Antonio
Search Deals
24/10
  • 24/10
  • 2 total stops
  • 50h 53m total
  • London to San Antonio
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£84 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Heathrow to San Antonio

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 15 July 2025.

Fri 29/815:05LHR - SAT
3 stops30h 39mMultiple Airlines
Fri 5/919:19SAT - LHR
3 stops29h 11mMultiple Airlines
Deal found 15/7£608
Fri 26/906:40LHR - SAT
2 stops21h 39mScandinavian Airlines
Tue 7/1015:00SAT - LHR
2 stops21h 30mScandinavian Airlines
Deal found 13/7£612
Sat 6/918:00LHR - SAT
2 stops25h 22mUnited Airlines
Sat 20/913:45SAT - LHR
1 stop13h 35mUnited Airlines
Deal found 13/7£647
Thu 11/913:40LHR - SAT
1 stop13h 37mLufthansa
Thu 18/917:15SAT - LHR
1 stop12h 30mLufthansa
Deal found 13/7£723
Fri 26/910:30LHR - SAT
1 stop13h 13mFinnair
Tue 7/1014:32SAT - LHR
1 stop15h 58mFinnair
Deal found 13/7£732
Wed 26/1114:55LHR - SAT
1 stop14h 50mBritish Airways
Fri 5/1215:35SAT - LHR
1 stop12h 25mBritish Airways
Deal found 13/7£741
Wed 26/1111:10LHR - SAT
2 stops31h 18mAir Canada
Fri 5/1209:55SAT - LHR
2 stops14h 35mAir Canada
Deal found 14/7£743
Mon 25/811:30LHR - SAT
2 stops18h 04mAir France
Tue 9/916:36SAT - LHR
2 stops15h 09mAir France
Deal found 12/7£745

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 15 July 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 29/8

15:05-15:44

3 stops30h 39m

San Antonio

Fri 5/9

19:19-06:30

3 stops29h 11m

£608

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

06:40-22:19

2 stops21h 39m

San Antonio

Tue 7/10

15:00-18:30

2 stops21h 30m

£612

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 6/9

18:00-13:22

2 stops25h 22m

San Antonio

Sat 20/9

13:45-09:20

1 stop13h 35m

£647

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 11/9

13:40-21:17

1 stop13h 37m

San Antonio

Thu 18/9

17:15-11:45

1 stop12h 30m

£723

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 26/9

10:30-17:43

1 stop13h 13m

San Antonio

Tue 7/10

14:32-12:30

1 stop15h 58m

£732

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 26/11

14:55-23:45

1 stop14h 50m

San Antonio

Fri 5/12

15:35-10:00

1 stop12h 25m

£741

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 26/11

11:10-12:28

2 stops31h 18m

San Antonio

Fri 5/12

09:55-06:30

2 stops14h 35m

£743

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 25/8

11:30-23:34

2 stops18h 04m

San Antonio

Tue 9/9

16:36-13:45

2 stops15h 09m

£745

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 24/10

20:50-17:43

2 stops50h 53m

£294

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 27/8

20:50-21:39

2 stops30h 49m

£560

Flights are sorted by cheapest return flights first.

Deals found on 13/7

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 11 July 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 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of £732). Flying from London Heathrow Airport to San Antonio in August is currently the most expensive (average of £1,125). 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 15 July 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 18% 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 15 July 2025.
See what other customers who have flown with Delta, Finnair, andAir France 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.
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,956 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,863 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Turkish Airlines
7.3
Good
3,901 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

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

    According to our current data, Scandinavian Airlines (£612), United Airlines (£647), and Lufthansa (£723) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 16% 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 Iberia, with whom users have recently found tickets for as low as £560. However, be on the lookout for offers from Lufthansa and Aer Lingus, 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Antonio (average of £732). Flying from London Heathrow Airport to San Antonio in August is currently the most expensive (average of £1,125). 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

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Alternative routes for Heathrow to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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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 15 July 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£508Average£601FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£532Average£805FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Scandinavian AirlinesCheapest£594Average£740FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Virgin AtlanticCheapest£672Average£851FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£677Average£841FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£703Average£835FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£712Average£955FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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

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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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Of course! You can now track prices for flights from Heathrow to San Antonio and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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