Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

SAT - LHR

$370 Find cheap flights from San Antonio to London Heathrow Airport

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 Heathrow departing on 7/16. 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
0 bags
Wed 6/5
Wed 6/12

Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
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.
In the last 7 days travelers have searched 42,830,901 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from San Antonio to Heathrow (SAT-LHR)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Heathrow 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 and deals for you by selecting your travel dates.
Choose your dates
12:00 pm - 7:50 amSAT-LHR
13h 50m1 stop
11:30 am - 10:34 pmLHR-SAT
17h 04m2 stops
$761Delta
Find Deal
Sun, Aug 18 - Sat, Aug 31
9:46 am - 7:30 amSAT-LHR
15h 44m1 stop
12:15 pm - 9:12 pmLHR-SAT
14h 57m1 stop
$765American Airlines
Find Deal
Sun, Aug 18 - Sat, Aug 31
6:50 pm - 12:45 pmSAT-LHR
11h 55m1 stop
12:00 pm - 6:45 pmLHR-SAT
12h 45m1 stop
$779Iberia
Find Deal
Wed, Sep 4 - Wed, Sep 11
7:00 am - 6:45 amSAT-LHR
17h 45m1 stop
2:05 pm - 11:41 amLHR-SAT
27h 36m2 stops
$780United Airlines
Find Deal
Tue, Sep 17 - Fri, Sep 27
12:00 pm - 11:10 amSAT-LHR
17h 10m1 stop
11:30 am - 10:37 pmLHR-SAT
17h 07m2 stops
$782Virgin Atlantic
Find Deal
Wed, Oct 2 - Tue, Oct 22
6:50 pm - 12:45 pmSAT-LHR
11h 55m1 stop
6:20 am - 8:43 pmLHR-SAT
19h 23m2 stops
$796Iberia
Find Deal
Sun, Oct 20 - Thu, Oct 31
5:25 pm - 1:30 pmSAT-LHR
15h 05m1 stop
6:20 am - 5:18 pmLHR-SAT
16h 58m2 stops
$832Virgin Atlantic
Find Deal
Fri, Nov 1 - Fri, Nov 15
8:33 pm - 6:25 amSAT-LHR
27h 52m1 stop
8:40 am - 3:49 pmLHR-SAT
13h 09m1 stop
$847British Airways
Find Deal
Sat, Aug 31 - Sat, Sep 28
9:45 am - 5:55 amSAT-LHR
14h 10m2 stops
8:30 am - 7:08 pmLHR-SAT
16h 38m2 stops
$849United Airlines
Find Deal
Sun, May 19 - Sun, May 26
7:31 pm - 2:25 pmSAT-LHR
12h 54m1 stop
7:35 pm - 7:48 pmLHR-SAT
30h 13m2 stops
$861British Airways
Find Deal
Sat, Aug 10 - Mon, Aug 19

Flights from San Antonio to Heathrow - Travel Insights & Trends

Get data-powered insights and trends into flights from San Antonio to Heathrow 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 San Antonio to London Heathrow Airport?

The average price of all flights from San Antonio to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to London Heathrow Airport on a Wednesday and more expensive on a Monday. On your return trip to San Antonio, you should consider flying back on a Tuesday, and avoid Wednesdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Antonio to London Heathrow Airport, 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 Heathrow Airport is April, where tickets cost $672 on average. On the other hand, the most expensive months are June and May, where the average cost of tickets is $1,554 and $1,150 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Antonio to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from San Antonio to London Heathrow Airport, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 45 days before departure.

Which airlines provide the cheapest flights from San Antonio to London Heathrow Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from San Antonio to London Heathrow Airport found on KAYAK was with JetBlue for $457. Delta proposed a round-trip connection from $761 and American Airlines from $765.

Good to know

Low season

February

High season

September

Cheapest flight

$370
Best time to beat the crowds with an average 29% 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 Heathrow

Are your dates flexible? Find out the best times to travel from San Antonio to Heathrow 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 San Antonio to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from San Antonio to London Heathrow Airport was $370 for a one-way ticket and $761 for a round-trip.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Antonio to London are Delta and KLM. With an average price for the route of $1,008 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,170 and an overall rating of 7.8.

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

    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 Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport with an airline and back to San Antonio with another airline. Booking your flights between San Antonio and LHR can sometimes prove cheaper using this method.

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

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

See more FAQs

Top 5 airlines serving from San Antonio to Heathrow

 
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 Heathrow? 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 10826 reviews
8.6Crew
8.0Entertainment
8.2Boarding
7.4Food
7.9Comfort
Airline reviews

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

8.0 ExcellentCynthia, May 2024ATL - TYS
Read more about Delta reviews

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Hi vergin Atlantic service was good but the flight ticket agent travel up charge me extra 57 pounds as a airport charges, actually I refuse to pay but they say if I not pay £57 then they say you will not be able to travel from Heathrow to goa ,so for me there was no option and it was just 3 day before my departure so i paid, so please look in to the matter. And I have a receipt of £ 57 as well .thanks

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

I liked everything about the flight. The service was excellent!

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

Delayed a day due to snow storm. Was upgraded. That kind of made up for significant delays from FLL to COS with no compensation or acknowledgement.

The Polaris experience is top notch. From departure lounge to arrival lounge. Everything was top notch. One of the best first class experience

EWR terminal C United Club is great. Flight and everything else mediocre

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

This was not the BA business class it used to be. Mediocre food, attendants seemed stretched thin. All the little luxuries that used to make BA business fun were missing. Flight delayed and the explanation given was they forgot to pick up crew - I hope I misheard! Transfer in LHR “sticky” - we thought we had way too much time at 3hours but it was needed. Next time will try different route.

Always getting updates by email very easy to check in on line. There was plenty of checking in staff to get you all through. It was nice that the flight attendants took time to talk to you and were interested in your holiday.

Flight from Phoenix to London was very quiet. Excellent space available for comfort, couldn't fault

Food was very average. And top up drinks offer was absent. For a 11 hour long flight that should be the minimum. The crew didn't want to be there. I understand it was new year day but given they had signed up for it

It was my fault choosing the seat nearest the entrance but it was ok.

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Very cramped seats in economy, difficult to get comfortable with your legs and feet and back. The seat width is ok but I’m average size. Food is HORRIBLE. Crew is friendly. Delays and very tight connections made it tough for navigating. We would have missed our connecting flight if it wasn’t delayed too. The terminal transit was slow and normally every 10 minutes before 8pm, after 8 pm is every 30 minutes!!!!! No free wine or drinks!! Below average attitude.

Leg room was better than expected. Lavatory’s were easy to access.crew was grea!

Horrible seat allocation. Boarding was slow. Food was average and so was entertainment. The TV terminal didn't work and so had to use remote.

Lost one checked bag.and wasted 30min waiting and filing missing baggage report. Very unsatisfied.

Book cheap flights from San Antonio to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Antonio to London found on KAYAK in the last 72 hours.
7/16Tue
3 stops
31h 02mSAT-LHR
$370
7/14Sun
2 stops
17h 03mSAT-LHR
$375
7/15Mon
3 stops
33h 20mSAT-LHR
$403
7/8Mon
2 stopsUnited Airlines
20h 40mSAT-LHR
$588
7/8Mon
1 stopDelta
15h 17mSAT-LHR
$644
7/12Fri
2 stopsUnited Airlines
18h 25mSAT-LHR
$688
7/11Thu
1 stopDelta
13h 47mSAT-LHR
$694
7/8Mon
2 stopsIberia
15h 42mSAT-LHR
$757
7/11Thu
2 stopsIberia
16h 30mSAT-LHR
$807
6/12Wed
1 stopBritish Airways
12h 23mSAT-LHR
$892

Search by stops

Search by airline

Search by price

Last minute flights from San Antonio to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from San Antonio to London that are departing in the next 10 days.
5/8Wed
multi-stopLufthansa
20h 15mSAT-LHR
5/27Mon
multi-stopLufthansa
32h 42mLHR-SAT
$810
5/8Wed
multi-stopIberia
13h 24mSAT-LHR
5/27Mon
multi-stopIberia
18h 24mLHR-SAT
$827
5/8Wed
multi-stopAmerican Airlines
16h 51mSAT-LHR
5/27Mon
multi-stopAmerican Airlines
13h 50mLHR-SAT
$842
5/10Fri
multi-stopUnited Airlines
20h 20mSAT-LHR
5/26Sun
multi-stopUnited Airlines
32h 12mLHR-SAT
$873
5/10Fri
multi-stopDelta
12h 25mSAT-LHR
5/25Sat
multi-stopDelta
17h 56mLHR-SAT
$890
5/10Fri
multi-stopAmerican Airlines
13h 34mSAT-LHR
5/25Sat
multi-stopAmerican Airlines
14h 59mLHR-SAT
$893
5/10Fri
multi-stopDelta
14h 15mSAT-LHR
5/26Sun
multi-stopDelta
17h 22mLHR-SAT
$895
5/9Thu
multi-stopLufthansa
20h 25mSAT-LHR
5/22Wed
multi-stopLufthansa
28h 16mLHR-SAT
$920
5/9Thu
multi-stopBritish Airways
19h 25mSAT-LHR
5/22Wed
multi-stopBritish Airways
13h 06mLHR-SAT
$1,251
5/9Thu
multi-stopBritish Airways
11h 53mSAT-LHR
5/15Wed
multi-stopBritish Airways
28h 56mLHR-SAT
$1,273

Search by stops

Search by airline

Search by price

San Antonio - London Heathrow Airport Flights

Departure:

San Antonio (SAT)United States

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - San Antonio

Cabin classes: