Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to San Antonio from $448

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to San Antonio departing on 1/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:40 am - 11:52 pm
LHR
-
SAT
23h 12m3 stops
Multiple Airlines Logo
6:30 am - 6:50 pm
SAT
-
LHR
30h 20m3 stops
$761Multiple Airlines
Sun, Jan 11 - Sat, Jan 17
Multiple Airlines Logo
6:40 am - 11:52 pm
LHR
-
SAT
23h 12m3 stops
Multiple Airlines Logo
6:30 am - 4:25 pm
SAT
-
LHR
27h 55m3 stops
$794Multiple Airlines
Sat, Jan 17 - Sat, Jan 24
Scandinavian Airlines Logo
7:30 pm - 12:34 am
LHR
-
SAT
35h 04m2 stops
Scandinavian Airlines Logo
10:57 am - 4:00 pm
SAT
-
LHR
23h 03m2 stops
$824Scandinavian Airlines
Thu, Feb 19 - Thu, Feb 26
Scandinavian Airlines Logo
6:40 am - 11:23 pm
LHR
-
SAT
22h 43m2 stops
Scandinavian Airlines Logo
8:00 am - 4:00 pm
SAT
-
LHR
26h 00m2 stops
$828Scandinavian Airlines
Sat, Jan 17 - Sat, Jan 24
Multiple Airlines Logo
6:05 pm - 11:52 pm
LHR
-
SAT
35h 47m3 stops
Multiple Airlines Logo
6:30 am - 4:25 pm
SAT
-
LHR
27h 55m3 stops
$829Multiple Airlines
Wed, Jan 7 - Sat, Jan 10
Scandinavian Airlines Logo
7:05 am - 10:28 pm
LHR
-
SAT
21h 23m3 stops
Scandinavian Airlines Logo
10:57 am - 6:30 pm
SAT
-
LHR
25h 33m2 stops
$834Scandinavian Airlines
Thu, Feb 19 - Thu, Feb 26
Scandinavian Airlines Logo
6:40 am - 11:43 pm
LHR
-
SAT
23h 03m2 stops
Scandinavian Airlines Logo
1:40 pm - 5:40 pm
SAT
-
LHR
22h 00m2 stops
$840Scandinavian Airlines
Thu, Jan 22 - Mon, Jan 26
Scandinavian Airlines Logo
6:40 am - 10:28 pm
LHR
-
SAT
21h 48m2 stops
Scandinavian Airlines Logo
1:40 pm - 4:00 pm
SAT
-
LHR
20h 20m2 stops
$842Scandinavian Airlines
Thu, Jan 22 - Mon, Jan 26
Scandinavian Airlines Logo
6:40 am - 10:28 pm
LHR
-
SAT
21h 48m2 stops
Scandinavian Airlines Logo
1:40 pm - 5:40 pm
SAT
-
LHR
22h 00m2 stops
$846Scandinavian Airlines
Thu, Jan 22 - Mon, Jan 26
Multiple Airlines Logo
8:50 am - 11:52 pm
LHR
-
SAT
21h 02m3 stops
Multiple Airlines Logo
10:35 am - 9:35 pm
SAT
-
LHR
29h 00m3 stops
$850Multiple Airlines
Wed, Jan 21 - Fri, Feb 6

Scandinavian Airlines flights from London Heathrow Airport to San Antonio

Our best Scandinavian Airlines deals on London Heathrow Airport to San Antonio flight tickets
Scandinavian Airlines
Feb 19
LHR7:30 pmLondon Heathrow
35h 04m
2 stops
SAT12:34 amSan Antonio
Feb 26
SAT10:57 amSan Antonio
23h 03m
2 stops
LHR4:00 pmLondon Heathrow
$824
Find similar
Scandinavian Airlines
Jan 17
LHR6:40 amLondon Heathrow
22h 43m
2 stops
SAT11:23 pmSan Antonio
Jan 24
SAT8:00 amSan Antonio
26h 00m
2 stops
LHR4:00 pmLondon Heathrow
$828
Find similar
Scandinavian Airlines
Feb 19
LHR7:05 amLondon Heathrow
21h 23m
3 stops
SAT10:28 pmSan Antonio
Feb 26
SAT10:57 amSan Antonio
25h 33m
2 stops
LHR6:30 pmLondon Heathrow
$834
Find similar

Lufthansa flights from London Heathrow Airport to San Antonio

Our best Lufthansa deals on London Heathrow Airport to San Antonio flight tickets
Lufthansa
Jan 21
LHR8:30 amLondon Heathrow
18h 26m
2 stops
SAT8:56 pmSan Antonio
Feb 6
SAT7:25 amSan Antonio
21h 25m
1 stop
LHR10:50 amLondon Heathrow
$970
Find similar
Lufthansa
Apr 13
LHR1:30 pmLondon Heathrow
27h 32m
2 stops
SAT11:02 amSan Antonio
May 4
SAT1:42 pmSan Antonio
13h 58m
1 stop
LHR9:40 amLondon Heathrow
$985
Find similar
Lufthansa
Apr 13
LHR1:30 pmLondon Heathrow
27h 32m
2 stops
SAT11:02 amSan Antonio
May 4
SAT5:00 pmSan Antonio
12h 45m
1 stop
LHR11:45 amLondon Heathrow
$986
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sun 1/11

6:40 am-11:52 pm

3 stops23h 12m

San Antonio

Sat 1/17

6:30 am-6:50 pm

3 stops30h 20m

$761

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 1/17

6:40 am-11:52 pm

3 stops23h 12m

San Antonio

Sat 1/24

6:30 am-4:25 pm

3 stops27h 55m

$794

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 2/19

7:30 pm-12:34 am

2 stops35h 04m

San Antonio

Thu 2/26

10:57 am-4:00 pm

2 stops23h 03m

$824

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 1/17

6:40 am-11:23 pm

2 stops22h 43m

San Antonio

Sat 1/24

8:00 am-4:00 pm

2 stops26h 00m

$828

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 1/7

6:05 pm-11:52 pm

3 stops35h 47m

San Antonio

Sat 1/10

6:30 am-4:25 pm

3 stops27h 55m

$829

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 2/19

7:05 am-10:28 pm

3 stops21h 23m

San Antonio

Thu 2/26

10:57 am-6:30 pm

2 stops25h 33m

$834

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 1/22

6:40 am-11:43 pm

2 stops23h 03m

San Antonio

Mon 1/26

1:40 pm-5:40 pm

2 stops22h 00m

$840

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 1/22

6:40 am-10:28 pm

2 stops21h 48m

San Antonio

Mon 1/26

1:40 pm-4:00 pm

2 stops20h 20m

$842

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 1/22

6:40 am-10:28 pm

2 stops21h 48m

San Antonio

Mon 1/26

1:40 pm-5:40 pm

2 stops22h 00m

$846

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Wed 1/21

8:50 am-11:52 pm

3 stops21h 02m

San Antonio

Fri 2/6

10:35 am-9:35 pm

3 stops29h 00m

$850

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Antonio from

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

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 cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of March, then book flights to San Antonio from London Heathrow Airport during January instead. Flights to San Antonio in January, while not as cheap as those in March, still average around $819.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Wednesday when prices can be found for as low as $973. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $1,240.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the morning. momondo users have found flights departing from London Heathrow Airport to San Antonio in the morning for as low as $1,222. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $1,260. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to San Antonio?

You are more likely to see cheaper flights to San Antonio from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $1,056 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from London Heathrow Airport for as low as $857 on momondo.

Can stopping save me money on London Heathrow Airport to San Antonio flights?

You could potentially save up to 9% on your flight if you consider stops on a London Heathrow Airport to San Antonio flight.

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

As of December 2025, prices for London Heathrow Airport to San Antonio flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to San Antonio

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

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

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

Fastest flight time

18h 45m

Direct flights

None
The fastest flight from London Heathrow Airport to San Antonio takes 18h 45m
There are no direct flights from London Heathrow Airport to San Antonio. There are no popular flight routes from London Heathrow Airport to San Antonio.
Search flight deals

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

    A flight from London Heathrow to San Antonio will travel around 4973.6 mi. In terms of flight time, this usually takes a little over 13h 30m.

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

    Prices for flights from London Heathrow Airport to San Antonio Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The necessary travel and health documents for your San Antonio Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from London Heathrow Airport to San Antonio

Compare and see reviews for airlines that fly from London Heathrow Airport to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $1,014Free CancellationRating
6.7
7,562 reviews
Search British Airways flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Boerne
Schertz
Pleasanton

Why use momondo?

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

Finding the right flight to San Antonio from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

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

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

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

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

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

If you are simply researching potential flights to San Antonio, momondo offers a useful price alert feature which will track prices for flights to San Antonio from London and alert you when they change.

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/3
Sat 1/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States