SAT - LHR

$327 Find Cheap Flights from San Antonio to London Heathrow Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$873
Typical prices: $770-$1,226
Air Canada, Lufthansa
Sat 4/21Sat 4/28
SAT - LHR • 2 stops
Cheapest one-way
$327
Typical prices: $323-$594
British Airways
Thu 2/15
SAT - LHR • 1 stop
Nonstop flights
Not available
There are currently no direct flights between San Antonio and London Heathrow Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
18 weeks
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 35% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Denver Intl (DEN)
Cheapest • Avg $675 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 12h 36m (one-way)
Insights
Insights
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We hope you love your trip to London Heathrow Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Antonio to Heathrow (SAT-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Heathrow

Wed, Apr 21 - Wed, Apr 28
Multiple Airlines Logo
8:55 am - 6:30 amSAT  San Antonio-LHR London Heathrow
15h 35m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
10:50 am - 11:08 pmLHR  London Heathrow-SAT San Antonio
18h 18m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl
$873Multiple Airlines
Mon, Mar 22 - Wed, Apr 14
Multiple Airlines Logo
7:30 am - 6:30 amSAT  San Antonio-LHR London Heathrow
18h 00m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl
Multiple Airlines Logo
6:50 am - 8:10 pmLHR  London Heathrow-SAT San Antonio
19h 20m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl
$879Multiple Airlines
Wed, Apr 21 - Wed, Apr 28
United Airlines Logo
12:50 pm - 7:15 amSAT  San Antonio-LHR London Heathrow
12h 25m1 stop Newark
United Airlines Logo
8:45 am - 11:08 pmLHR  London Heathrow-SAT San Antonio
20h 23m2 stops Zurich Chicago O'Hare Intl
$894United Airlines
Sun, Mar 14 - Fri, Mar 19
Delta Logo
6:15 pm - 11:40 amSAT  San Antonio-LHR London Heathrow
12h 25m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:45 am - 11:20 pmLHR  London Heathrow-SAT San Antonio
16h 35m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$894Delta
Mon, Mar 22 - Wed, Apr 14
United Airlines Logo
1:25 pm - 12:00 pmSAT  San Antonio-LHR London Heathrow
17h 35m1 stop Chicago O'Hare Intl
United Airlines Logo
8:45 am - 11:08 pmLHR  London Heathrow-SAT San Antonio
20h 23m2 stops Zurich Chicago O'Hare Intl
$897United Airlines
Sun, Mar 14 - Fri, Mar 19
Delta Logo
8:00 am - 8:05 amSAT  San Antonio-LHR London Heathrow
19h 05m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
Delta Logo
11:45 am - 11:20 pmLHR  London Heathrow-SAT San Antonio
16h 35m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$898Delta
Wed, Apr 21 - Wed, Apr 28
British Airways Logo
5:42 pm - 12:15 pmSAT  San Antonio-LHR London Heathrow
12h 33m1 stop Charlotte Douglas
British Airways Logo
12:15 pm - 8:47 pmLHR  London Heathrow-SAT San Antonio
14h 32m1 stop Charlotte Douglas
$900British Airways
Mon, Mar 22 - Wed, Apr 14
British Airways Logo
6:15 pm - 12:15 pmSAT  San Antonio-LHR London Heathrow
13h 00m1 stop Dallas/Fort Worth
British Airways Logo
9:30 am - 5:44 pmLHR  London Heathrow-SAT San Antonio
14h 14m1 stop Chicago O'Hare Intl
$905British Airways
Wed, Apr 7 - Tue, Apr 13
American Airlines Logo
1:19 pm - 8:05 amSAT  San Antonio-LHR London Heathrow
12h 46m1 stop Chicago O'Hare Intl
American Airlines Logo
4:55 pm - 11:56 pmLHR  London Heathrow-SAT San Antonio
13h 01m1 stop Dallas/Fort Worth
$928American Airlines
Wed, Dec 30 - Thu, Jan 14
American Airlines Logo
7:09 pm - 12:10 pmSAT  San Antonio-LHR London Heathrow
11h 01m1 stop Dallas/Fort Worth
American Airlines Logo
11:00 am - 6:39 pmLHR  London Heathrow-SAT San Antonio
13h 39m1 stop Chicago O'Hare Intl
$957American Airlines
Booking Insights

Price, demand and travel trends for San Antonio to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from San Antonio to London Heathrow Airport. It’s 7% cheaper than the average day, while Friday is the most expensive, with prices 9% higher.

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

•February is the cheapest month to fly from San Antonio to London Heathrow Airport at $652 round-trip.
•June ($1,286) and December ($1,227) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 97% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from San Antonio to London Heathrow Airport the cheapest?

Flights from San Antonio to London Heathrow Airport are cheapest 18 weeks before departure. Booking in this window typically costs about 34% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for San Antonio to London Heathrow Airport flights

Low season

October

Cheapest flight

$327
Beat the crowds with an average 45% drop in travelers.
The most popular month to fly with an average 43% increase in travelers.
One-way 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

Your San Antonio to London Heathrow Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from San Antonio to London Heathrow Airport?

    Four cabin classes are available on flights from San Antonio to London Heathrow Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from San Antonio to London Heathrow Airport?

    A nonstop flight from San Antonio to London Heathrow Airport takes 00m, covering 4,967 miles.

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

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a San Antonio to London Heathrow Airport flight?

    Round-trip flights from San Antonio to London Heathrow Airport range from $770 to $1,226, with an average of $996 over the past 12 months. Anything below $770 counts as a good deal.

  • How expensive are last-minute San Antonio to London Heathrow Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 23% above the $996 route average. Book 18 weeks before departure for the lowest fares.

  • Have flight prices from San Antonio to London Heathrow Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $873 to $6,663. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from San Antonio to London Heathrow Airport looking right now?

    One-way fares from San Antonio to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $382, which is 17% below the typical average for this route.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates averaging $39 for economy cars. Top options include:

    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Hertz

  • Which airports can I use when flying from San Antonio to London Heathrow Airport?

    Flights from San Antonio to London Heathrow Airport usually depart from San Antonio (SAT) and arrive at London Heathrow (LHR).

  • Which airports do connecting flights from San Antonio to London Heathrow Airport pass through?

    One-stop flights from San Antonio to London Heathrow Airport most commonly connect through:

    • Dallas/Fort Worth (DFW) - 51% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 22% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 19% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from San Antonio to London Heathrow Airport?

    Yes. Flexible dates can save you up to 15% on flights from San Antonio to London Heathrow Airport. Wednesday is the cheapest departure day at $932 round-trip on average, while Friday is the most expensive at $1,094, a difference of $162.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from San Antonio to London Heathrow Airport?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 12h 36m, compared with 12h 40m via Houston George Bush Intcntl (IAH) and 12h 58m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between San Antonio and London Heathrow Airport?

    London Heathrow Airport is 6 hours ahead of San Antonio (British Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

Your guide to booking San Antonio to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $932, about $162 less than Friday fares (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 34% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San Antonio to London Heathrow Airport trip for February. Fares historically average $652 round-trip in that month - typically $634 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.

    • Hilton London Heathrow Airport

More options for your flight from San Antonio to Heathrow

Complete your trip to London with a hotel stay or car rental

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