SAT - LON

$188 Find Cheap Flights from San Antonio to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to London departing on 5/4. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to London.
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Everything you should know

Cheapest round-trip
$571
Overall average: $740
British Airways
Sun 2/15Tue 2/24
SAT - LHR • 1 stop
Cheapest one-way
$188
Typical prices: $488-$606
Virgin Atlantic
Mon 5/4
SAT - LHR • 1 stop
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Top airlines
United Airlines
Cheapest • from $588 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
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+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 25% price drop
May
Most popular
Good to know
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+1
+1
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Booking Insights
Flight Deals

Cheap Flights from San Antonio to London (SAT-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to London 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 round-trip flight deals from San Antonio to London

Sun, Feb 15 - Tue, Feb 24
British Airways Logo
5:17 am - 6:55 am
SAT
-
LHR
19h 38m
1 stop
British Airways Logo
7:30 am - 7:56 pm
LHR
-
SAT
18h 26m
2 stops
$571British Airways
Sun, Feb 15 - Tue, Feb 24
Iberia Logo
10:23 am - 6:50 am
SAT
-
LHR
14h 27m
1 stop
Iberia Logo
7:30 am - 9:58 pm
LHR
-
SAT
20h 28m
2 stops
$580Iberia
Wed, Feb 11 - Wed, Feb 18
Iberia Logo
1:08 pm - 6:50 am
SAT
-
LHR
11h 42m
1 stop
Iberia Logo
7:05 pm - 8:23 am
LHR
-
SAT
19h 18m
2 stops
$581Iberia
Mon, Feb 16 - Thu, Feb 26
British Airways Logo
1:40 pm - 6:50 am
SAT
-
LHR
11h 10m
1 stop
British Airways Logo
10:30 am - 7:25 pm
LHR
-
SAT
38h 55m
2 stops
$586British Airways
Wed, Mar 18 - Wed, Mar 25
United Airlines Logo
9:52 am - 10:15 am
SAT
-
LHR
19h 23m
1 stop
United Airlines Logo
1:25 pm - 11:15 pm
LHR
-
SAT
38h 50m
2 stops
$588United Airlines
Tue, Feb 10 - Fri, Feb 20
British Airways Logo
1:08 pm - 6:50 am
SAT
-
LHR
11h 42m
1 stop
British Airways Logo
3:45 pm - 11:56 pm
LHR
-
SAT
14h 11m
1 stop
$589British Airways
Sun, Jan 25 - Tue, Feb 10
Virgin Atlantic Logo
12:55 pm - 6:55 am
SAT
-
LHR
12h 00m
1 stop
Virgin Atlantic Logo
6:30 am - 5:22 pm
LHR
-
SAT
16h 52m
2 stops
$590Virgin Atlantic
Tue, Feb 10 - Fri, Feb 20
Air Canada Logo
9:00 am - 7:10 am
SAT
-
LHR
16h 10m
2 stops
Air Canada Logo
3:00 pm - 11:12 pm
LHR
-
SAT
38h 12m
2 stops
$592Air Canada
Thu, Feb 26 - Thu, Mar 5
Virgin Atlantic Logo
12:55 pm - 9:20 am
SAT
-
LHR
14h 25m
1 stop
Virgin Atlantic Logo
1:00 pm - 10:55 pm
LHR
-
SAT
15h 55m
1 stop
$594Virgin Atlantic
Wed, Mar 18 - Wed, Mar 25
Delta Logo
1:00 pm - 8:10 am
SAT
-
LCY
14h 10m
2 stops
Delta Logo
10:00 am - 12:38 am
LCY
-
SAT
19h 38m
2 stops
$956Delta
Booking Insights

KAYAK's insights & trends for San Antonio to London flights

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

Find cheap flights to London
Find cheap flights to London

Planning a trip from San Antonio to London? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to London, 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 San Antonio to London is September, where tickets cost $701 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is $1,700 and $1,166 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Antonio to London, 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 San Antonio to London, you should book around 2 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$188
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from San Antonio to London Heathrow Airport

When to book flights from San Antonio to London

Are your dates flexible? Find out the best times to travel from San Antonio to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 flights from San Antonio to London

  • How can I travel from downtown San Antonio to SAT?

    To travel from downtown San Antonio to SAT, you can catch a bus or a taxi. If you’re on a budget, you should board one of the local buses that serve the route. On the other hand, if you’re in a rush, you should settle on a taxi.

  • Does SAT have a prayer room?

    SAT has a single prayer room located in the Ticketing B Terminal Lobby. You can visit this prayer room, usually open 24/7, regardless of religion. This is simply because it is an interfaith chapel.

  • What are some of the fun things I can do before departing LHR?

    Before departing LHR, you can grab a meal of your choice, as this airport is home to several European cafes, British Pubs, and remarkable full-service restaurants that offer a wide range of dishes. You can also enjoy spa treatments at BeRelax Spa, located on the Airside of Terminal 5. You can rest assured of receiving the top-notch spa services you pay for at this spa, given that it boasts experienced professionals. Alternatively, you can watch flights take off and land at the airport from various spots in Terminals 2, 3, 4, and 5 or check out superb art pieces at the on-site gallery near the Premium Check-In counters in Terminal 5.

  • Can I rent a car at LHR?

    At LHR, you can easily rent a car. This is because the airport has counters for car rental companies like Alamo, Avis, Budget, Europcar, Enterprise, SIXT, and Hertz in the Arrivals Hall of its main terminal.

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

    In the last 3 days, the lowest price for a flight from San Antonio to London was $188 for a one-way ticket and $571 for a round-trip.

  • Do I need a passport to fly between San Antonio and London?

    Yes, you’ll need a passport to travel to London from San Antonio.

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

    When flying out of San Antonio you will be using San Antonio. You will be landing at one of these airports: London City, London Gatwick, London Heathrow, or London Stansted.

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

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

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

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

  • What is the most popular layover when flying to London from San Antonio?

    Dallas is the most popular layover city among KAYAK users traveling from San Antonio to London.

  • Which is the best airline for flights from San Antonio to London, Delta or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from San Antonio to London are Delta and Virgin Atlantic. With an average price for the route of $800 and an overall rating of 7.9, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $702 and an overall rating of 7.5.

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

    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 San Antonio to London.

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

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

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

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

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

    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 London from San Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Antonio to London

  • San Antonio International Airport (SAT) is the main international airport in the Greater San Antonio Area. Situated approximately 8 miles north of the city’s downtown area, this airport is a Merlin Airways and Avelo Airlines hub.
  • In London, you will arrive on your flight at Heathrow Airport (LHR), Gatwick Airport (LGW), or London City Airport (LCY). If you want to land at an airport close to London’s city center, you should book a flight that lands at LCY. On the other hand, if you want to travel affordably, check out the flights that land at LHR, as it serves a majority of the cheap flights that ply this route.
  • On your travel date, it’s essential that you arrive at SAT at least 2 hours prior to your departure time. Doing so will help you check in and complete the airport’s tedious security checks in time for your flight.
  • While waiting for your flight to London at SAT, you can relax in the airport’s USO lounge if you’re a serving member of the US military or an immediate family member of one. At this lounge, located near Terminal B’s baggage claim area, you’ll enjoy access to comfortable seating, snacks, beverages, magazines, and newspapers.
  • If you’d like to convert some of your cash before leaving LHR, you’ll be able to do so with ease, given that this airport features at least 25 Travelex booths. Spread across the airport, these booths are normally open from about 5 am to 10 pm. If you need help finding one, look for an airport ambassador. They are quite easy to spot, given that they all wear distinct purple shirts.

Reviews of the top 5 airlines serving from San Antonio to London

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to London. 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 San Antonio to London? 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.
7.9
DeltaOverall score based on 8039 reviews
7.9Comfort
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
Airline reviews

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

10.0 ExcellentAnne, Jan 2026
MCO - DTW
Read more Delta reviews

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

I like flying first class, and United has a nice one

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The flight was canceled 3 hours after original take off time

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

The boarding procedure got confusing because they wanted to weigh everyone’s carry-on. Apparently mine was 3 1/2 kg over their limit. I didn’t know they had a limit. And at the check-in desk, nothing was said about this. They wanted me to check the carry-on at no charge and that would have been fine except then they told me at my connection in London I would have to go outside to baggage claim retrieve my bag, and then recheck it. In other words, they could not check it to my final destination, only to London. I told him this was unacceptable so after a few minutes of discussion, they came back and said that my bag would be OK to carry on the plane. It seems that if you have a connection then the weight is not as important. Then when I actually went to board the boarding agent said I needed a tag indicating that my bag had been weighed, even though she had just five minutes ago talked to the same person who cleared me. Lots of confusion seems like a very bad process. They need to improve this.

My flight being automatically moved messed up my travel plans, and I had to quickly find an alternative mode of transportation. I couldn’t get a refund from any of the companies involved. Kayak, Ibiza, or Vueling. I am still unsure of how to settle my concern.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

I've taken British Airways before and it has been great. On this trip to Spain and Portugal we had two BA flights. On both flights we were taken by bus from the terminal out to the plane on the tarmac. There were many older folks on these flights, and to ask people in their 70s to lug their carry-on and personal items up the long mobile staircase to the plane entrance, is very disturbing. I won't be taking British Airways in the future. Many people on these flights were very unhappy.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

Everything you need to know for your flight from San Antonio to London

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