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Cheap flights from San Antonio to London Heathrow Airport from $484

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to London Heathrow Airport departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Antonio to London.
Scandinavian Airlines Logo
12:15 pm - 4:00 pmSAT-LHR
21h 45m2 stops
Scandinavian Airlines Logo
6:40 am - 11:21 pmLHR-SAT
22h 41m2 stops
$683Scandinavian Airlines
Find Deal
lun, set 15 - mer, ott 15
Scandinavian Airlines Logo
12:15 pm - 4:00 pmSAT-LHR
21h 45m2 stops
Scandinavian Airlines Logo
6:40 pm - 12:14 amLHR-SAT
35h 34m2 stops
$733Scandinavian Airlines
Find Deal
gio, ago 14 - dom, ago 24
British Airways Logo
12:30 pm - 6:25 amSAT-LHR
11h 55m1 stop
British Airways Logo
4:25 pm - 11:37 pmLHR-SAT
13h 12m1 stop
$757British Airways
Find Deal
dom, ago 24 - mer, set 3
United Airlines Logo
7:35 pm - 7:40 amSAT-LHR
30h 05m1 stop
United Airlines Logo
1:40 pm - 9:17 pmLHR-SAT
13h 37m1 stop
$794United Airlines
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dom, ago 31 - gio, set 11
British Airways Logo
5:30 pm - 12:30 pmSAT-LHR
13h 00m1 stop
British Airways Logo
9:15 am - 5:38 pmLHR-SAT
14h 23m1 stop
$805British Airways
Find Deal
mar, ago 12 - sab, ago 23
United Airlines Logo
12:55 pm - 8:20 amSAT-LHR
13h 25m1 stop
United Airlines Logo
9:30 am - 12:01 pmLHR-SAT
32h 31m2 stops
$815United Airlines
Find Deal
mar, ago 12 - sab, ago 23
Iberia Logo
5:30 pm - 10:50 amSAT-LHR
11h 20m1 stop
Iberia Logo
2:25 pm - 11:29 pmLHR-SAT
15h 04m1 stop
$830Iberia
Find Deal
lun, set 15 - mer, ott 15
Iberia Logo
6:45 pm - 12:30 pmSAT-LHR
11h 45m1 stop
Iberia Logo
12:00 pm - 6:51 pmLHR-SAT
12h 51m1 stop
$853Iberia
Find Deal
gio, ago 14 - dom, ago 24
Virgin Atlantic Logo
6:06 pm - 1:10 pmSAT-LHR
13h 04m1 stop
Virgin Atlantic Logo
9:20 am - 5:07 pmLHR-SAT
13h 47m1 stop
$902Virgin Atlantic
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lun, mag 12 - mar, ago 19
Virgin Atlantic Logo
11:59 am - 9:15 amSAT-LHR
15h 16m1 stop
Virgin Atlantic Logo
1:05 pm - 10:25 pmLHR-SAT
15h 20m1 stop
$952Virgin Atlantic
Find Deal
lun, mag 12 - sab, ago 23

Aer Lingus flights from San Antonio to London Heathrow Airport

Our best Aer Lingus deals on San Antonio to London Heathrow Airport flight tickets
Aer Lingus
May 5
SAT3:15 pmSan Antonio
16h 10m
2 stops
LHR1:25 pmLondon Heathrow
May 13
LHR1:25 pmLondon Heathrow
16h 25m
2 stops
SAT11:50 pmSan Antonio
Aer Lingus
May 1
SAT6:02 amSan Antonio
19h 58m
2 stops
LHR8:00 amLondon Heathrow
May 15
LHR1:25 pmLondon Heathrow
16h 25m
2 stops
SAT11:50 pmSan Antonio
Aer Lingus
May 1
SAT4:04 pmSan Antonio
15h 21m
2 stops
LHR1:25 pmLondon Heathrow
May 6
LHR1:25 pmLondon Heathrow
16h 25m
2 stops
SAT11:50 pmSan Antonio

United Airlines flights from San Antonio to London Heathrow Airport

Our best United Airlines deals on San Antonio to London Heathrow Airport flight tickets
United Airlines
Aug 31
SAT7:35 pmSan Antonio
30h 05m
1 stop
LHR7:40 amLondon Heathrow
Sep 11
LHR1:40 pmLondon Heathrow
13h 37m
1 stop
SAT9:17 pmSan Antonio
United Airlines
Aug 12
SAT12:55 pmSan Antonio
13h 25m
1 stop
LHR8:20 amLondon Heathrow
Aug 23
LHR9:30 amLondon Heathrow
32h 31m
2 stops
SAT12:01 pmSan Antonio
United Airlines
Sep 15
SAT2:25 pmSan Antonio
11h 15m
1 stop
LHR7:40 amLondon Heathrow
Oct 15
LHR2:05 pmLondon Heathrow
27h 30m
2 stops
SAT11:35 amSan Antonio

See travel insights to London from

How to get the cheapest flight ticket from San Antonio to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San Antonio and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from San Antonio, with most prices found around $741. If you’re not able to fly to London Heathrow Airport in October, then January is your next best option. Flight prices from San Antonio to London Heathrow Airport during January average around $779.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Thursday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $903. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,126.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from San Antonio to London Heathrow Airport at noon for as low as $893. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,030.

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

You are more likely to see cheaper flights to London Heathrow Airport from San Antonio when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $950 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Antonio for as low as $838 on momondo.

How have San Antonio to London Heathrow Airport flight prices changed over time?

As of April 2025, prices for San Antonio to London Heathrow Airport flights are approximately 39% cheaper when compared to flights at the same time last year.

When to book flights from San Antonio to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Antonio to London Heathrow Airport (SAT to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to London Heathrow Airport

Best Price Found

$484

Fastest flight time

11h 06m

Direct flights

None
The best one-way flight to London Heathrow Airport from San Antonio in the past 72 hours is $484. The best round-trip flight deal from San Antonio to London Heathrow Airport found on momondo in the last 72 hours is $683.
The fastest flight from San Antonio to London Heathrow Airport takes 11h 06m
There are no direct flights from San Antonio to London Heathrow Airport. Popular non-direct route for this connection is San Antonio Airport - London Heathrow Airport.

  • How far is San Antonio to London Heathrow by plane?

    There are 4973.6 mi between San Antonio and London Heathrow. 11h 06m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Antonio Airport to London Heathrow Airport?

    Prices for flights from San Antonio Airport to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Antonio Airport to London Heathrow Airport?

  • How old do you have to be to fly from San Antonio Airport to London Heathrow Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Antonio to London Heathrow Airport?


Best airlines flying from San Antonio to London Heathrow Airport

Compare and see reviews for airlines that fly from San Antonio to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $672Free CancellationRating
7.0
2,686 reviews
Search Iberia flights
United AirlinesPriceFrom $692Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
British AirwaysPriceFrom $702Free CancellationRating
6.6
6,815 reviews
Search British Airways flights
DeltaPriceFrom $703Free CancellationRating
8.0
7,920 reviews
Search Delta flights
American AirlinesPriceFrom $704Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Virgin AtlanticPriceFrom $715Free CancellationRating
7.4
642 reviews
Search Virgin Atlantic flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Croydon
Luton
Guildford
Slough
Hayes
Dartford
Dover
Stansted
Ilford
Salisbury
Milton Keynes
Canterbury
Colchester
Horley
Wembley
Swindon
Chelmsford
Richmond

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from San Antonio.

Can I find flights from San Antonio to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from San Antonio with this policy.

How can momondo help me find flights from San Antonio to London?

momondo provides multiple filters to help you find the best flight to London from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from San Antonio to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Antonio to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.


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