Cheap flights from London Heathrow Airport to San Antonio from £492
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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
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 3 July 2025.
Round-trip from | £644 |
---|---|
One-way from | £492 |
Popular in | August |
Cheapest in | November |
Average price | £864 |
Find flight deals from Heathrow to San Antonio
Cheapest flights from Heathrow to San AntonioExplore 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 3 July 2025.
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 3 July 2025.
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 3 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
Fly to
Route
Depart
Return
Price
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Fri 26/9
06:40-22:19
2 stops21h 39m
San Antonio
Tue 7/10
16:10-21:40
2 stops23h 30m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Thu 7/8
08:00-20:27
2 stops18h 27m
San Antonio
Thu 14/8
07:07-05:55
1 stop16h 48m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Mon 25/8
15:10-22:59
1 stop13h 49m
San Antonio
Tue 9/9
13:44-09:00
1 stop13h 16m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Fri 5/9
16:00-12:01
2 stops26h 01m
San Antonio
Sat 13/9
17:58-11:35
1 stop11h 37m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Thu 7/8
08:00-08:04
2 stops30h 04m
San Antonio
Thu 14/8
12:39-05:55
2 stops35h 16m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Mon 25/8
11:45-21:19
2 stops15h 34m
San Antonio
Tue 9/9
10:35-07:15
1 stop14h 40m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Tue 5/8
08:15-20:36
2 stops18h 21m
San Antonio
Mon 11/8
18:45-12:45
1 stop12h 00m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Thu 7/8
10:30-22:44
1 stop18h 14m
San Antonio
Thu 14/8
18:30-12:45
1 stop12h 15m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Fri 8/8
10:20-00:34
3 stops44h 14m
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Mon 11/8
07:40-21:39
2 stops19h 59m
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.
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 27 June 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 3 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.
How much does it cost for a return flight from London Heathrow Airport to San Antonio?
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 3 July 2025.
See what other customers who have flown with Delta, Finnair, andUnited 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.
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Food
Boarding
Overall
Crew
Comfort
Reviews
Kim,May 2025
PIH - SLC
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.
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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.
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 3 July 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Heathrow to San Antonio?
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Why should you use Cheapflights to find cheap flight tickets from Heathrow to San Antonio?
Cheapflights helps you find that perfect flight to San Antonio from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
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.
Can Cheapflights notify me if prices for flights from Heathrow to San Antonio become cheaper?
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.