LHR - SAT

£382 Find Cheap Flights from London Heathrow Airport to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to San Antonio departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Antonio.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Antonio.
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Cheap Flights from Heathrow to San Antonio (LHR-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to San Antonio

Fri, 26 Sep - Tue, 7 Oct
Scandinavian Airlines Logo
06:40 - 22:19LHR-SAT
21h 39m2 stops
Scandinavian Airlines Logo
16:10 - 17:40SAT-LHR
19h 30m2 stops
£612Scandinavian Airlines
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Wed, 12 Nov - Sat, 15 Nov
Scandinavian Airlines Logo
06:40 - 23:21LHR-SAT
22h 41m2 stops
Scandinavian Airlines Logo
16:10 - 17:40SAT-LHR
19h 30m2 stops
£638Scandinavian Airlines
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Mon, 1 Sep - Tue, 30 Sep
British Airways Logo
15:10 - 23:38LHR-SAT
14h 28m1 stop
British Airways Logo
17:16 - 10:50SAT-LHR
11h 34m1 stop
£701British Airways
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Fri, 26 Sep - Tue, 7 Oct
Lufthansa Logo
08:30 - 11:58LHR-SAT
33h 28m2 stops
Lufthansa Logo
14:25 - 07:40SAT-LHR
11h 15m1 stop
£710Lufthansa
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Fri, 26 Sep - Tue, 7 Oct
Lufthansa Logo
16:00 - 11:58LHR-SAT
25h 58m2 stops
Lufthansa Logo
06:45 - 08:20SAT-LHR
19h 35m1 stop
£712Lufthansa
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Wed, 12 Nov - Sat, 15 Nov
United Airlines Logo
07:40 - 20:15LHR-SAT
18h 35m2 stops
United Airlines Logo
13:23 - 09:40SAT-LHR
14h 17m1 stop
£713United Airlines
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Wed, 26 Nov - Fri, 5 Dec
United Airlines Logo
13:25 - 12:32LHR-SAT
29h 07m2 stops
United Airlines Logo
12:12 - 06:40SAT-LHR
12h 28m1 stop
£721United Airlines
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Tue, 2 Sep - Tue, 9 Sep
British Airways Logo
10:30 - 17:41LHR-SAT
13h 11m1 stop
British Airways Logo
12:44 - 06:25SAT-LHR
11h 41m1 stop
£723British Airways
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Wed, 20 Aug - Wed, 27 Aug
Finnair Logo
10:20 - 22:12LHR-SAT
17h 52m2 stops
Finnair Logo
14:15 - 09:00SAT-LHR
12h 45m1 stop
£760Finnair
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Wed, 20 Aug - Wed, 27 Aug
Finnair Logo
10:20 - 22:12LHR-SAT
17h 52m2 stops
Finnair Logo
18:45 - 17:05SAT-LHR
16h 20m2 stops
£766Finnair
Find Deal
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KAYAK's insights & trends for Heathrow to San Antonio flights

Get data-powered insights and trends into flights from Heathrow to San Antonio to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from London Heathrow Airport to San Antonio?

The average price of all round-trip flights from London Heathrow Airport to San Antonio clicked on KAYAK for each day over the last 12 months.

For London Heathrow Airport to San Antonio, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from San Antonio back to London Heathrow Airport, the best deals are generally found on Tuesday, with Friday being the most expensive.

What is the cheapest month to fly from London Heathrow Airport to San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to San Antonio, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to San Antonio is November, where tickets cost £562 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £1,012 and £869 respectively.

How far in advance should I book a flight from London Heathrow Airport to San Antonio?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to San Antonio, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to San Antonio, you should book around 6 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.


Good to know - Cheap tickets from London Heathrow Airport to San Antonio

Low seasonFebruary
High seasonNovember
Cheapest flight£382
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly and prices are also 22% lower on average.
Flight from London Heathrow Airport to San Antonio

When to book flights from Heathrow to San Antonio

Are your dates flexible? Find out the best times to travel from Heathrow to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to San Antonio flights

  • What is the cheapest flight from London Heathrow Airport to San Antonio?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to San Antonio was £519 for a one-way ticket and £832 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to San Antonio?

    London Heathrow Airport and San Antonio are both served by 1 main airport. You will leave London Heathrow Airport from London Heathrow and will be arriving at San Antonio.

  • Which aircraft models fly most regularly from London Heathrow Airport to San Antonio?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London Heathrow Airport to San Antonio?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between London Heathrow Airport and San Antonio, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from London to San Antonio, Finnair or United Airlines?

    The two airlines most popular with KAYAK users for flights from London to San Antonio are Finnair and United Airlines. With an average price for the route of £596 and an overall rating of 7.6, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of £867 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Antonio with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from Heathrow to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from London to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1311 reviews
6.9Entertainment
8.1Crew
7.4Comfort
6.7Food
7.6Boarding
Airline reviews

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

8.0 ExcellentSandrine, Jul 2025JFK - DCA
Read more Finnair reviews

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

The crew was excellent as ever on Virgin. The special meal was poor unfortunately. More significantly when we arrived at Manchester Airport there was no air bridge provided and we had to exit the plane down a rickety stair case. This is unacceptable for a transatlantic flight. Whilst I understand that this is the airport’s fault at the end of the day the airline is responsible for our transportation and needs to do something.

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

Very difficult to clearly hear the dialogue on videos due to airplane engine sound. Flying to Copenhagen audio was very clear. Food was excellent. Returning flight--Lunch and breakfast food was the worst I've experienced. Audio was terrible. Why the difference?

Great experience. Typically do klm to Amsterdam but may start taking this flight in future - greatxexperience.

The food was wonderful! The blankets and pillows were a nice touch and the staff were very accommodating, making frequent rounds to offer food, drink, etc. We were also told in advance when to expect meals to arrive, which is thoughtful. I liked the early notification about the lack of headphones as well, although unfortunately I'm not sure we received on for the first leg of the trip, which would have been nice to prepare for. The seats are a bit tight, and the bright monitors on the wall were on during an overnight trip, making it difficult to sleep for those close to them. .

Crew was unresponsive to request for a soda. Food was horrible and I’d venture to guess many others thought so as well by the amount that they trashed. Made me sick to my stomach and ended up in bed the remainder of the day once we arrived. Screaming child for 3/4 of the almost 8 hour flight. Crew had no headphones whatsoever for free or purchase. Seating way too tight and we upgraded our seats. I do not see us ever flying this airline again.

Standard short hop flight. No food, no entertainment. Just get in, get something to drink, and try to be as comfortable as you can for an hour.

Travelling coach, comfort is all in one's perspective. Movie choices were great. Food was OK. Flight crew were pleasant. Tip: If they come through asking if you want tea or coffee, do not ask for water. They get miffed. So use the call button after they pass through.

Would be nice if the front toilets could be used by everyone.

They cancelled our flight home less than 24 hours before it was supposed to leave. It partially ruined our last day because I was on the phone trying to get 5 people home and the stress that it causes. We still arrived at the airport with no definite flight plans. The actual flight was good but my kids really misses the kids meals I had ordered for them which obviously didn’t make it to the new flight.

Very helpful in getting us off the plane first to make a tight connection.

Very unfriendly approach to me when you rescheduled my return flight due to your delay. No help to address my health concerns because I am diabetics and had orthopedic problems. No clear explanation where to clear customs. I had poor customer service

Good legroom. Attentive crew. Wine quality poor, you can do better

It was freezing. I asked crew member for a blanket and was told it might be in front of plane but I never got one. I turned off all the vents but still froze.

Great experience. Flight was on time and reached destination on time

I meant this flight was not good, the one from Tirana to Frankfurt was better!

Easy checkin. Things went off without a hitch. The the movie selection for the flight wasn’t great, though.

food, movie entertainment upgraded current, interconnecting flights being on time, we have a 24-hour overlay

Exit row seat that cost extra to book had a bad monitor marked as out of order, so clearly something they should have fixed.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Never happened. Flight was delayed. Had to be re rojyed

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

They lost my luggage. Lady who was helping with it in Austin was rude. Not very helpful!

Waited 3.25 hours in plane only to have the flight cancelled.

More space, of course. a footrest! more room to walk. Movie selection was awful. Some good documentaries would help if the movies can't be better. The flight itself was great, crew was great.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

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