Cheap flights from London Heathrow Airport to San Antonio from £391
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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAT
3 Jan — 10 Jan1
Return
1 adult
Economy
Return
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
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 4 December 2025.
Fri 12/1214:10LHR - SAT
1 stop14h 30mBritish Airways
Fri 16/113:59SAT - LHR
1 stop12h 16mBritish Airways
Deal found 2/12£861
Wed 24/1216:30LHR - SAT
1 stop29h 21mBritish Airways
Mon 5/118:32SAT - LHR
1 stop33h 53mBritish Airways
Deal found 1/12£880
Fri 12/1210:15LHR - SAT
1 stop13h 48mFinnair
Fri 16/113:08SAT - LHR
2 stops16h 32mFinnair
Deal found 2/12£902
Wed 24/1208:30LHR - SAT
2 stops17h 54mUnited Airlines
Mon 5/119:30SAT - LHR
1 stop30h 00mUnited Airlines
Deal found 1/12£931
Thu 4/1214:50LHR - SAT
2 stops25h 41mMultiple Airlines
Thu 11/1209:10SAT - LHR
1 stop15h 35mMultiple Airlines
Deal found 3/12£944
Wed 24/1215:00LHR - SAT
1 stop29h 10mBritish Airways
Tue 6/117:00SAT - LHR
1 stop34h 15mBritish Airways
Deal found 3/12£947
Wed 24/1206:30LHR - SAT
2 stops21h 23mDelta
Tue 6/112:55SAT - LHR
1 stop13h 10mDelta
Deal found 3/12£950
Mon 29/1216:30LHR - SAT
1 stop34h 11mMultiple Airlines
Mon 5/118:32SAT - LHR
1 stop31h 43mMultiple Airlines
Deal found 2/12£959
Wed 24/1210:00LHR - SAT
1 stop15h 41mUnited Airlines
Tue 6/105:25SAT - LHR
1 stop20h 05mUnited Airlines
Deal found 3/12£961
Wed 24/1213:25LHR - SAT
2 stops27h 58mAir Canada
Wed 7/109:00SAT - LHR
2 stops16h 10mAir Canada
Deal found 3/12£965
Wed 24/1213:25LHR - SAT
2 stops27h 58mAir Canada
Tue 6/109:00SAT - LHR
2 stops17h 30mAir Canada
Deal found 3/12£968
Wed 24/1215:50LHR - SAT
1 stop24h 21mDelta
Wed 7/107:45SAT - LHR
1 stop16h 40mDelta
Deal found 3/12£972
Best flights from Heathrow to San Antonio
Discover carefully curated flight deals from Heathrow to San Antonio that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 December 2025.
Sat 17/106:40LHR - SAT
2 stops22h 43mScandinavian Airlines
Sat 24/108:00SAT - LHR
2 stops26h 00mScandinavian Airlines
Deal found 3/12£623
Sun 1/220:05LHR - SAT
3 stops33h 47mMultiple Airlines
Fri 27/210:26SAT - LHR
3 stops25h 04mMultiple Airlines
Deal found 2/12£653
Wed 21/108:30LHR - SAT
2 stops18h 26mLufthansa
Fri 6/207:25SAT - LHR
1 stop21h 25mLufthansa
Deal found 2/12£730
Sun 1/209:30LHR - SAT
2 stops19h 27mUnited Airlines
Fri 27/209:58SAT - LHR
1 stop15h 32mUnited Airlines
Deal found 2/12£746
Thu 22/106:40LHR - SAT
2 stops21h 48mScandinavian Airlines
Mon 26/113:40SAT - LHR
2 stops22h 00mScandinavian Airlines
Deal found 3/12£637
Mon 13/413:30LHR - SAT
2 stops27h 32mLufthansa
Mon 4/517:00SAT - LHR
1 stop12h 45mLufthansa
Deal found 1/12£742
Sun 1/219:30LHR - SAT
2 stops32h 58mScandinavian Airlines
Fri 27/210:57SAT - LHR
2 stops23h 03mScandinavian Airlines
Deal found 2/12£694
Fri 16/108:30LHR - SAT
2 stops18h 26mLufthansa
Fri 23/113:20SAT - LHR
1 stop14h 20mLufthansa
Deal found 2/12£746
Wed 21/110:20LHR - SAT
2 stops19h 23mScandinavian Airlines
Fri 6/213:40SAT - LHR
2 stops20h 20mScandinavian Airlines
Deal found 2/12£698
Sun 11/119:30LHR - SAT
2 stops33h 53mScandinavian Airlines
Sat 17/113:40SAT - LHR
2 stops20h 20mScandinavian Airlines
Deal found 2/12£720
Mon 13/406:40LHR - SAT
2 stops22h 38mScandinavian Airlines
Mon 4/516:10SAT - LHR
2 stops19h 30mScandinavian Airlines
Deal found 1/12£726
Last-minute flights from Heathrow to San Antonio
Discover last-minute flight deals from Heathrow to San Antonio. Data last updated 4 December 2025 and is based on user searches.
Wed 7/118:05LHR - SAT
3 stops35h 47mMultiple Airlines
Sat 10/106:30SAT - LHR
3 stops27h 55mMultiple Airlines
Deal found 2/12£624
Sun 11/106:40LHR - SAT
3 stops23h 12mMultiple Airlines
Sat 17/106:30SAT - LHR
3 stops30h 20mMultiple Airlines
Deal found 2/12£573
Sun 11/117:00LHR - SAT
2 stops36h 23mScandinavian Airlines
Sat 17/113:40SAT - LHR
2 stops22h 00mScandinavian Airlines
Deal found 3/12£656
Sun 11/106:00LHR - SAT
3 stops23h 52mMultiple Airlines
Fri 16/110:35SAT - LHR
3 stops30h 05mMultiple Airlines
Deal found 2/12£677
Sat 17/106:40LHR - SAT
3 stops23h 12mMultiple Airlines
Sat 24/106:30SAT - LHR
3 stops27h 55mMultiple Airlines
Deal found 3/12£597
Sat 17/106:40LHR - SAT
2 stops22h 43mScandinavian Airlines
Sat 24/108:00SAT - LHR
2 stops26h 00mScandinavian Airlines
Deal found 3/12£623
Wed 21/108:50LHR - SAT
3 stops21h 02mMultiple Airlines
Fri 6/210:35SAT - LHR
3 stops29h 00mMultiple Airlines
Deal found 2/12£640
Wed 21/110:20LHR - SAT
2 stops19h 23mScandinavian Airlines
Fri 6/213:40SAT - LHR
2 stops20h 20mScandinavian Airlines
Deal found 2/12£698
Thu 22/106:40LHR - SAT
2 stops23h 03mScandinavian Airlines
Mon 26/113:40SAT - LHR
2 stops22h 00mScandinavian Airlines
Deal found 2/12£632
One-way flights from Heathrow to San Antonio
Search for one-way flight options from Heathrow to San Antonio. Find affordable one-way fares based on user searches. Data last updated 4 December 2025.
Mon 19/120:05LHR - SAT
3 stops57h 47mMultiple Airlines
Deal found 3/12£391
Thu 15/114:50LHR - SAT
3 stops30h 50mMultiple Airlines
Deal found 2/12£394
Tue 6/109:05LHR - SAT
3 stops54h 13mMultiple Airlines
Deal found 1/12£454
Wed 25/306:00LHR - SAT
3 stops32h 22mMultiple Airlines
Deal found 2/12£472
Sun 29/319:50LHR - SAT
3 stops43h 32mMultiple Airlines
Deal found 2/12£523
Mon 20/409:30LHR - SAT
2 stops17h 40mLufthansa
Deal found 2/12£541
Tue 13/108:30LHR - SAT
2 stops20h 43mUnited Airlines
Deal found 3/12£556
Tue 28/408:20LHR - SAT
1 stop14h 24mMultiple Airlines
Deal found 3/12£561
Find 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 4 December 2025.
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 4 December 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
Sat 17/1
06:40-23:23
2 stops22h 43m
San Antonio
Sat 24/1
08:00-16:00
2 stops26h 00m
£623
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Thu 22/1
06:40-22:28
2 stops21h 48m
San Antonio
Mon 26/1
13:40-17:40
2 stops22h 00m
£637
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Sun 1/2
20:05-23:52
3 stops33h 47m
San Antonio
Fri 27/2
10:26-17:30
3 stops25h 04m
£653
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Sun 1/2
19:30-22:28
2 stops32h 58m
San Antonio
Fri 27/2
10:57-16:00
2 stops23h 03m
£694
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Wed 21/1
10:20-23:43
2 stops19h 23m
San Antonio
Fri 6/2
13:40-16:00
2 stops20h 20m
£698
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Sun 11/1
19:30-23:23
2 stops33h 53m
San Antonio
Sat 17/1
13:40-16:00
2 stops20h 20m
£720
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Mon 13/4
06:40-23:18
2 stops22h 38m
San Antonio
Mon 4/5
16:10-17:40
2 stops19h 30m
£726
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Wed 21/1
08:30-20:56
2 stops18h 26m
San Antonio
Fri 6/2
07:25-10:50
1 stop21h 25m
£730
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Mon 13/4
13:30-11:02
2 stops27h 32m
San Antonio
Mon 4/5
17:00-11:45
1 stop12h 45m
£742
LondonSan Antonio
LHR - SAT
LHRSAT
London Heathrow
Sun 1/2
09:30-22:57
2 stops19h 27m
San Antonio
Fri 27/2
09:58-07:30
1 stop15h 32m
£746
Flights are sorted by cheapest return flights first.
Deals found on 3/12
Showing 1-10 of 22 results
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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
Prices
More
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 28 November 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 £445). Flying from London Heathrow Airport to San Antonio in July is currently the most expensive (average of £555). 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 4 December 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.
What’s the top stopover airport for flights from London Heathrow Airport to San Antonio?
Share of one-stop return flights from London Heathrow Airport to San Antonio chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Dallas (DFW) – chosen by Cheapflights users on 72% of one-stop itineraries from London Heathrow Airport to San Antonio on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to San Antonio?
Average return fare for one-stop flights from London Heathrow Airport to San Antonio, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Washington, D.C. (IAD) is the most affordable one-stop option, with an average return flight price of £733.
What’s the fastest stopover option from London Heathrow Airport to San Antonio?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to San Antonio, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Charlotte (CLT) have the shortest average one-way travel time for one-stop routes: 13h 00m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to San Antonio?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to San Antonio, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Charlotte (CLT) offer the fastest connection on this route, with an average stopover time of 1h 00m.
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 4 December 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.
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.
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.
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.
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.
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.
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 £623, Scandinavian Airlines can have you in San Antonio from London Heathrow Airport in 22h 43m. 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 (£506), Iberia (£539), and Scandinavian Airlines (£634) offers the cheapest pricing from London Heathrow Airport to San Antonio. These flights start at 36% lower than the current average price 3 months from now.
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 £445). Flying from London Heathrow Airport to San Antonio in July is currently the most expensive (average of £555). 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.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 4 December 2025.
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 4 December 2025.
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 4 December 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to San Antonio?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Antonio from Heathrow today with Cheapflights!
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.
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