SAT - LON

$248 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 11/15. 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

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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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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

Fri, Nov 14 - Mon, Nov 17
Scandinavian Airlines Logo
2:46 pm - 9:20 amSAT-LHR
36h 34m2 stops
Scandinavian Airlines Logo
6:40 am - 12:17 amLHR-SAT
23h 37m2 stops
$533Scandinavian Airlines
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Thu, Jan 22 - Fri, Jan 30
Scandinavian Airlines Logo
2:10 pm - 4:00 pmSAT-LHR
19h 50m2 stops
Scandinavian Airlines Logo
6:40 am - 11:33 pmLHR-SAT
22h 53m2 stops
$579Scandinavian Airlines
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Tue, Nov 4 - Thu, Nov 20
KLM Logo
12:23 pm - 7:50 amSAT-LHR
13h 27m1 stop
KLM Logo
11:05 am - 9:19 pmLHR-SAT
16h 14m1 stop
$588KLM
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Tue, Oct 28 - Tue, Nov 4
United Airlines Logo
2:14 pm - 10:15 amSAT-LHR
15h 01m1 stop
United Airlines Logo
6:35 am - 8:15 pmLHR-SAT
19h 40m2 stops
$619United Airlines
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Tue, Oct 28 - Tue, Nov 4
United Airlines Logo
2:14 pm - 11:15 amSAT-LHR
16h 01m2 stops
United Airlines Logo
6:35 am - 8:15 pmLHR-SAT
19h 40m2 stops
$624United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Iberia Logo
12:31 pm - 8:35 amSAT-LHR
15h 04m1 stop
Iberia Logo
10:05 am - 10:15 pmLHR-SAT
18h 10m1 stop
$650Iberia
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Wed, Feb 11 - Wed, Feb 18
Iberia Logo
3:07 pm - 2:05 pmSAT-LCY
16h 58m2 stops
Iberia Logo
7:50 am - 8:00 pmLCY-SAT
18h 10m2 stops
$667Iberia
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Thu, Oct 30 - Tue, Nov 4
British Airways Logo
3:02 pm - 6:30 pmSAT-LCY
22h 28m2 stops
British Airways Logo
5:00 pm - 8:10 pmLCY-SAT
33h 10m2 stops
$1,178British Airways
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Sat, Dec 27 - Sun, Jan 4
American Airlines Logo
8:21 am - 9:00 amSAT-LGW
18h 39m2 stops
American Airlines Logo
11:20 am - 8:18 amLGW-SAT
26h 58m2 stops
$1,216American Airlines
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Tue, Dec 2 - Wed, Dec 10
British Airways Logo
8:17 am - 8:50 amSAT-LCY
18h 33m2 stops
British Airways Logo
7:50 am - 12:25 amLCY-SAT
22h 35m2 stops
$1,702British Airways
Find Deal

Everything you should know

Top airlines
Scandinavian Airlines
Cheapest • from $533 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Video guide: How to find cheap flights to London
Watch video
Watch video
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When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 24% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$533
Overall average: $857
Scandinavian Airlines
Fri 11/14Mon 11/17
SAT - LHR • 2 stops
Cheapest one-way
$248
Typical prices: $450-$671
Multiple Airlines
Sat 11/15
SAT - LHR • 2 stops
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We hope you love your trip to London!
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’s the cheapest day of the week to fly from San Antonio to London?

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

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

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 August, where tickets cost $724 (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 $1,207 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 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$248
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 12% 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 $248 for a one-way ticket and $533 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 $855 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 $808 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 7977 reviews
8.2Boarding
7.9Entertainment
8.5Crew
7.3Food
7.9Comfort
Airline reviews

Old plane and old configuration/seats but still comfortable for a morning flight

10.0 ExcellentBraulio, Oct 2025ATL - SDQ
Read more Delta reviews

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

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.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

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.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Terrible customer service. I booked business class and the counter agent didn’t bother asking me about any choice or preferred seat, basically assigned me that last seat and couldn’t even answer if it was a business class seat. Also iberia lost my suitcase on my flight from JFK to MAD with the layover in BCN. Useless customer service at the counter. Thank goodness I happened to check the baggage claim area of the next flight in…there it was.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

The crew were friendly and helpful. Iberia lost our luggage on arrival, Friday and we didn't get it until Sunday at 10:00 p.m. local Malaga time. I also paid $382.80 for seat assignments but two out out of the four were not together. Iberia mentioned that it was because the plane was delayed in Madrid before our flight began in LAX. They should compensate us half of my payment.

It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.

Easy and organized getting in and out of the flight

We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.

The crew were not very personable. The crew did not serve tea or coffee. The bathroom was not kept clean. Two out of the 5 toilets in the cabin weren't working.

It was extremely cold in the back of the plane. The seats are uncomfortable and space very small. Crew was excellent as usual.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Connection at Hethrow was horrible..We couldn't get out of the plane for an hour as they were buying people to the airport and there were not enough busses. We had 2 and half hf between flights so it was very tight. After departing plane we had to go thru security again. People with less time in between connections missed their flights

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

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