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Cheap flights from London to San Antonio from $563

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 to San Antonio departing on 9/30. 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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Find the cheapest flights from London to San Antonio

Cheap round-trip flights

Scandinavian Airlines Logo
6:40 am - 11:52 pmLHR-SAT
23h 12m2 stops
Scandinavian Airlines Logo
12:23 pm - 9:40 pmSAT-LHR
27h 17m2 stops
$800Scandinavian Airlines
Find Deal
Fri, Sep 26 - Tue, Oct 7
Scandinavian Airlines Logo
7:05 am - 11:16 pmLHR-SAT
22h 11m3 stops
Scandinavian Airlines Logo
1:05 pm - 4:00 pmSAT-LHR
20h 55m2 stops
$809Scandinavian Airlines
Find Deal
Thu, Nov 20 - Fri, Dec 5
United Airlines Logo
6:00 pm - 11:20 amLHR-SAT
22h 20m1 stop
United Airlines Logo
7:00 am - 6:20 amSAT-LHR
17h 20m1 stop
$848United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Virgin Atlantic Logo
8:25 pm - 8:28 pmLHR-SAT
29h 03m2 stops
Virgin Atlantic Logo
10:54 am - 7:50 amSAT-LHR
14h 56m1 stop
$863Virgin Atlantic
Find Deal
Tue, Oct 28 - Tue, Nov 4
Logo
6:50 am - 8:15 pmLHR-SAT
19h 25m2 stops
Logo
2:14 pm - 5:55 amSAT-LHR
33h 41m2 stops
$867
Find Deal
Sat, Nov 8 - Sat, Nov 22
Logo
10:55 am - 11:40 pmLGW-SAT
18h 45m2 stops
Logo
4:55 pm - 10:00 amSAT-LGW
35h 05m1 stop
$874
Find Deal
Fri, Oct 17 - Thu, Oct 23
Lufthansa Logo
7:30 am - 8:15 pmLHR-SAT
18h 45m2 stops
Lufthansa Logo
2:04 pm - 5:55 amSAT-LHR
33h 51m1 stop
$887Lufthansa
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Sat, Nov 8 - Sat, Nov 22
United Airlines Logo
7:30 am - 8:15 pmLHR-SAT
17h 45m2 stops
United Airlines Logo
2:14 pm - 7:30 amSAT-LHR
11h 16m1 stop
$897United Airlines
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Tue, Oct 28 - Tue, Nov 4
Virgin Atlantic Logo
1:05 pm - 10:19 pmLHR-SAT
15h 14m1 stop
Virgin Atlantic Logo
12:23 pm - 7:15 amSAT-LHR
12h 52m1 stop
$901Virgin Atlantic
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Fri, Sep 26 - Tue, Oct 7
Lufthansa Logo
9:50 am - 8:15 pmLCY-SAT
39h 25m2 stops
Lufthansa Logo
7:07 am - 4:40 pmSAT-LCY
27h 33m2 stops
$916Lufthansa
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Tue, Oct 28 - Tue, Nov 4

Virgin Atlantic flights from London to San Antonio

Our best Virgin Atlantic deals on London to San Antonio flight tickets
Virgin Atlantic
Oct 28
LHR8:25 pmLondon Heathrow
29h 03m
2 stops
SAT8:28 pmSan Antonio
Nov 4
SAT10:54 amSan Antonio
14h 56m
1 stop
LHR7:50 amLondon Heathrow
$863
Find similar
Virgin Atlantic
Sep 26
LHR1:05 pmLondon Heathrow
15h 14m
1 stop
SAT10:19 pmSan Antonio
Oct 7
SAT12:23 pmSan Antonio
12h 52m
1 stop
LHR7:15 amLondon Heathrow
$901
Find similar
Virgin Atlantic
Sep 26
LHR12:25 pmLondon Heathrow
15h 05m
1 stop
SAT9:30 pmSan Antonio
Oct 7
SAT12:23 pmSan Antonio
12h 22m
1 stop
LHR6:45 amLondon Heathrow
$902
Find similar

Iberia flights from London to San Antonio

Our best Iberia deals on London to San Antonio flight tickets
Iberia
Sep 24
LHR11:30 amLondon Heathrow
17h 30m
2 stops
SAT11:00 pmSan Antonio
Oct 6
SAT2:31 pmSan Antonio
12h 29m
1 stop
LHR9:00 amLondon Heathrow
$906
Find similar
Iberia
Oct 17
LGW7:10 amLondon Gatwick
22h 33m
2 stops
SAT11:43 pmSan Antonio
Oct 23
SAT2:31 pmSan Antonio
38h 24m
2 stops
LGW10:55 amLondon Gatwick
$1,115
Find similar
Iberia
Oct 18
LHR12:15 pmLondon Heathrow
15h 33m
1 stop
SAT9:48 pmSan Antonio
Oct 23
SAT2:31 pmSan Antonio
19h 49m
2 stops
LHR4:20 pmLondon Heathrow
$1,141
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London 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 September 15, 2025.
Use the filters below to find and compare flights from London to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 9/26

6:40 am-11:52 pm

2 stops23h 12m

San Antonio

Tue 10/7

12:23 pm-9:40 pm

2 stops27h 17m

$800

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 11/20

7:05 am-11:16 pm

3 stops22h 11m

San Antonio

Fri 12/5

1:05 pm-4:00 pm

2 stops20h 55m

$809

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 10/28

6:00 pm-11:20 am

1 stop22h 20m

San Antonio

Tue 11/4

7:00 am-6:20 am

1 stop17h 20m

$848

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 10/28

8:25 pm-8:28 pm

2 stops29h 03m

San Antonio

Tue 11/4

10:54 am-7:50 am

1 stop14h 56m

$863

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 11/8

6:50 am-8:15 pm

2 stops19h 25m

San Antonio

Sat 11/22

2:14 pm-5:55 am

2 stops33h 41m

$867

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Fri 10/17

10:55 am-11:40 pm

2 stops18h 45m

San Antonio

Thu 10/23

4:55 pm-10:00 am

1 stop35h 05m

$874

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Sat 11/8

7:30 am-8:15 pm

2 stops18h 45m

San Antonio

Sat 11/22

2:04 pm-5:55 am

1 stop33h 51m

$887

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Tue 10/28

7:30 am-8:15 pm

2 stops17h 45m

San Antonio

Tue 11/4

2:14 pm-7:30 am

1 stop11h 16m

$897

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Fri 9/26

1:05 pm-10:19 pm

1 stop15h 14m

San Antonio

Tue 10/7

12:23 pm-7:15 am

1 stop12h 52m

$901

LondonSan Antonio

LCY - SAT

LCYSAT

London City

Tue 10/28

9:50 am-8:15 pm

2 stops39h 25m

San Antonio

Tue 11/4

7:07 am-4:40 pm

2 stops27h 33m

$916

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from London 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 typical price of a round-trip flight between London and San Antonio?

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of February, then book flights to San Antonio from London during March instead. Flights to San Antonio in March, while not as cheap as those in February, still average around $763.

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 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $1,010 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 for as low as $782 on momondo.

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

You could potentially save up to 21% on your flight if you consider stops on a London to San Antonio flight.

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

As of September 2025, prices for London to San Antonio flights are approximately 5% cheaper when compared to flights at the same time last year.

When to book flights from London to San Antonio

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

Cheap London to San Antonio (LON to SAT) flight deals and tips

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

Direct flights

None
There are no direct flights from London to San Antonio. There are no popular flight routes from London to San Antonio.
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  • How far is London to San Antonio by plane?

    A flight from London to San Antonio will travel around 4985.7 mi. By plane, this route typically takes 13h 15m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to San Antonio Airport.

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

    The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London to San Antonio

Compare and see reviews for airlines that fly from London to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $1,014Free CancellationRating
6.6
7,361 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to San Antonio. momondo saves you time and could save you money on your trip.

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

All flight searches from London to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

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?

Yes. momondo can track prices for London to San Antonio flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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