SAT - LON

$205 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 7/20. 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.
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

Mon, Sep 8 - Sun, Sep 14
 Logo
5:20 am - 10:00 amSAT-LGW
22h 40m1 stop
 Logo
2:00 pm - 11:25 pmLGW-SAT
15h 25m1 stop
Mon, Sep 22 - Fri, Sep 26
 Logo
5:20 am - 10:00 amSAT-LGW
22h 40m1 stop
 Logo
2:00 pm - 11:25 pmLGW-SAT
15h 25m1 stop
Sun, Aug 3 - Tue, Aug 19
Virgin Atlantic Logo
12:24 pm - 6:45 amSAT-LHR
12h 21m1 stop
Virgin Atlantic Logo
1:05 pm - 8:19 pmLHR-SAT
13h 14m1 stop
$612Virgin Atlantic
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Wed, Nov 19 - Wed, Dec 3
British Airways Logo
5:45 pm - 12:15 pmSAT-LHR
12h 30m1 stop
British Airways Logo
2:10 pm - 11:29 pmLHR-SAT
15h 19m1 stop
$626British Airways
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Wed, Aug 27 - Tue, Sep 9
United Airlines Logo
9:50 am - 7:40 amSAT-LHR
15h 50m1 stop
United Airlines Logo
9:30 am - 12:01 pmLHR-SAT
32h 31m2 stops
$629United Airlines
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Sat, Sep 13 - Tue, Sep 30
United Airlines Logo
7:35 pm - 6:30 amSAT-LHR
28h 55m2 stops
United Airlines Logo
2:05 pm - 3:58 pmLHR-SAT
31h 53m3 stops
$630United Airlines
Find Deal
Wed, Oct 29 - Mon, Nov 10
Iberia Logo
1:25 pm - 8:35 amSAT-LHR
14h 10m1 stop
Iberia Logo
6:45 pm - 8:02 pmLHR-SAT
31h 17m2 stops
$631Iberia
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Wed, Oct 29 - Fri, Nov 7
Iberia Logo
1:25 pm - 8:35 amSAT-LHR
14h 10m1 stop
Iberia Logo
4:30 pm - 9:27 amLHR-SAT
22h 57m1 stop
$653Iberia
Find Deal
Tue, Sep 2 - Mon, Sep 8
British Airways Logo
3:00 pm - 9:05 amSAT-LHR
12h 05m1 stop
British Airways Logo
7:30 pm - 4:42 pmLHR-SAT
27h 12m2 stops
$659British Airways
Find Deal
Sat, Sep 27 - Sat, Oct 4
American Airlines Logo
9:10 am - 8:35 amSAT-LGW
17h 25m2 stops
American Airlines Logo
10:40 am - 11:00 pmLGW-SAT
18h 20m2 stops
$714American Airlines
Find Deal
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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 February, where tickets cost $743 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $1,338 and $1,225 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 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonFebruary
High seasonJanuary
Cheapest flight$205
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from San Antonio to London Gatwick 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 $205 for a one-way ticket and $570 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?

    Star Alliance, SkyTeam, 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 United Airlines?

    The two airlines most popular with KAYAK users for flights from San Antonio to London are Delta and United Airlines. With an average price for the route of $916 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,014 and an overall rating of 7.4.

  • 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.
8.0
DeltaOverall score based on 7964 reviews
8.5Crew
7.9Comfort
7.9Entertainment
7.3Food
8.2Boarding
Airline reviews

I like for how they process during check in. It was very smoothly.

10.0 ExcellentAbdulla, Jun 2025CMH - JFK
Read more Delta reviews

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Overall, aside from the baggage issue, it was as good as one expects.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I want to single out flight attendant Mitch who was in the Premium Economy section. When my wife’s hearing aide dropped through the cushion under the seat he was able to locate it and return it to her. Food was a different matter. Dinner was fine. Breakfast was another matter. They had a yogurt dish that the ran out of and the alternative was not very good according to those we talked to.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

Gate agent did not hold flight for connection, provided no assistance to get new flight

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

My suitcase was completed destroyed. The top part is broken and unusable now.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

All male crew was just too woke for me. I felt like a sardine. I will never take a window seat or the rearmost seat again. I booked early and did not pay for seat selection and that was a mistake. The security at IAH was atrocious. I was violated and radiated as I was in a hurry to connect to my other flight. I may have lost items under the seat in front of me that I couldn't see nor bend over to look.

Food choices were very limited. Taste of the dishes was average.

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.

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you. Lastly, I paid 5000 dollars for business class, and having to pay more to choose my seat early is really an insult. Seems greedy

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you

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

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

British Airways staff are very polite and willing to help.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

From boarding, to attention in flight, I couldn’t fault it.

Not having to check carry on bags when plane wasn’t full. (The told us it was)

I was in business class for the 8 hour flight where: 1. The WiFi did not work 2. The entertainment system did not work 3. We were told there were no hot drinks for the entire flight

I had an issue with the name on my ticket vs my passport name. I was very upset that the Iberia ticket clerk had no authorization to help me and I was left to fix it. It took 19 calls of persons promising to accomplish and not doing anything before I reached someone who helped me in 10 minutes. Two of them even hung up on me. I missed my original flight because of this. Terrible customer service.

The flight was delayed twice. When the crew explained about the debris causing flat tires, I was glad they took the time to change all four.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Flight boarded three hours late for no reason other than someone made a huge error in crew scheduling. We missed our connecting flight in Madrid and got zero help from American or Iberian airlines on rebooking. We had to pay for a car to take us to the Madrid train station and pay for train tickets to Santiago. We never used our booked flight to Santiago. American claims I can submit the expenses but they are not obligated to cover them. Very frustrating.

Flight delayed Service could be better Iberia staff are not really friendly

They cancelled the flight)(they said bad weather but many other flights took off) and made us wait 5 hours in line to figure out what to do. We ended up making a new flight the next day on another airlines...I hope they honor giving us our money back

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

More Indian vegetarian food options would have been better Availability of seat selection free of charge 72 hours before departure would be great

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

This was the second time on BA, food terrible, bathrooms gross, boarding late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress.

The flight was delayed twice and because of that, we missed our connecting flight. British Airways then attempted to put us on the last flight to Milan from London which would have kept us in the airport for 12 hours. We had to speak to several levels of bureaucracy until BA management let us fly on a flight that only kept us in the airport for two hours. If there was an earlier flight, why weren’t we put on that flight from the start? Unacceptable behavior from what was once my favorite carrier.

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

My flights were great and the crew on them was lovely especially the London to Barcelona flight as Al & AJ were so amazingly nice. I wish they would be my crew always as they have the best customer service. Sadly both flights were delayed the first one from Vegas was because they clearly loaded the cargo wrong the plane was off balance making us 2 hours late. This made me miss my connection and sadly it was challenging rebooking while I was on the flight. I will never use Kayak again as there was no customer service number or live chat and you rebooked me on a flight 2 days later. I had my mom call BA to change it which she did after spending an hour on hold. This should not be so difficult. My second flight was an hour delayed due to not being able to disconnect the bridge from the plane but I did finally make it home.

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