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Cheap flights from London to San Antonio from $351

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 2/23. 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

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Find the cheapest flights from London to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:10 pm - 11:52 pm
LGW
-
SAT
15h 42m1 stop
Multiple Airlines Logo
6:30 am - 10:00 am
SAT
-
LGW
21h 30m1 stop
$585Multiple Airlines
Sun, Jan 11 - Mon, Feb 2
Multiple Airlines Logo
2:00 pm - 11:52 pm
LGW
-
SAT
15h 52m1 stop
Multiple Airlines Logo
6:30 am - 10:00 am
SAT
-
LGW
21h 30m1 stop
$605Multiple Airlines
Sat, Jan 10 - Mon, Feb 2
Multiple Airlines Logo
2:00 pm - 11:52 pm
LGW
-
SAT
15h 52m1 stop
Multiple Airlines Logo
6:30 am - 10:00 am
SAT
-
LGW
21h 30m1 stop
$613Multiple Airlines
Mon, Jan 12 - Mon, Feb 2
Multiple Airlines Logo
2:00 pm - 11:52 pm
LGW
-
SAT
15h 52m1 stop
Multiple Airlines Logo
6:30 am - 10:00 am
SAT
-
LGW
21h 30m1 stop
$636Multiple Airlines
Fri, Jan 9 - Mon, Feb 2
Multiple Airlines Logo
2:10 pm - 11:52 pm
LGW
-
SAT
15h 42m1 stop
Multiple Airlines Logo
6:30 am - 10:00 am
SAT
-
LGW
21h 30m1 stop
$639Multiple Airlines
Sun, Jan 11 - Thu, Jan 29
Multiple Airlines Logo
2:00 pm - 11:52 pm
LGW
-
SAT
15h 52m1 stop
Multiple Airlines Logo
6:30 am - 10:00 am
SAT
-
LGW
21h 30m1 stop
$648Multiple Airlines
Sat, Jan 10 - Fri, Jan 30
Scandinavian Airlines Logo
7:05 am - 10:28 pm
LHR
-
SAT
21h 23m3 stops
Scandinavian Airlines Logo
10:45 am - 4:00 pm
SAT
-
LHR
23h 15m2 stops
$840Scandinavian Airlines
Thu, Jan 29 - Thu, Feb 5
Scandinavian Airlines Logo
6:40 am - 11:23 pm
LHR
-
SAT
22h 43m2 stops
Scandinavian Airlines Logo
10:45 am - 9:20 am
SAT
-
LHR
40h 35m2 stops
$850Scandinavian Airlines
Mon, Jan 12 - Mon, Feb 2
British Airways Logo
7:50 am - 7:23 pm
LCY
-
SAT
17h 33m2 stops
British Airways Logo
8:10 am - 8:50 am
SAT
-
LCY
18h 40m2 stops
$1,128British Airways
Wed, Jan 28 - Wed, Feb 4
Iberia Logo
7:50 am - 10:42 pm
LCY
-
SAT
20h 52m2 stops
Iberia Logo
3:07 pm - 8:50 am
SAT
-
LCY
35h 43m2 stops
$1,227Iberia
Thu, Jan 22 - Mon, Jan 26

Iberia flights from London to San Antonio

Our best Iberia deals on London to San Antonio flight tickets
Iberia
Jan 22
LGW11:45 amLondon Gatwick
40h 57m
2 stops
SAT10:42 pmSan Antonio
Jan 26
SAT3:07 pmSan Antonio
45h 53m
2 stops
LGW7:00 pmLondon Gatwick
$1,200
Find similar
Iberia
Jan 22
LCY7:50 amLondon City
20h 52m
2 stops
SAT10:42 pmSan Antonio
Jan 26
SAT3:07 pmSan Antonio
35h 43m
2 stops
LCY8:50 amLondon City
$1,227
Find similar

Scandinavian Airlines flights from London to San Antonio

Our best Scandinavian Airlines deals on London to San Antonio flight tickets
Scandinavian Airlines
Jan 17
LHR6:40 amLondon Heathrow
22h 43m
2 stops
SAT11:23 pmSan Antonio
Feb 7
SAT1:40 pmSan Antonio
26h 00m
2 stops
LHR9:40 pmLondon Heathrow
$791
Find similar
Scandinavian Airlines
Jan 30
LHR7:30 pmLondon Heathrow
35h 08m
2 stops
SAT12:38 amSan Antonio
Feb 26
SAT1:35 pmSan Antonio
22h 05m
2 stops
LHR5:40 pmLondon Heathrow
$826
Find similar
Scandinavian Airlines
Jan 29
LHR6:40 amLondon Heathrow
23h 03m
2 stops
SAT11:43 pmSan Antonio
Feb 5
SAT10:45 amSan Antonio
25h 45m
2 stops
LHR6:30 pmLondon Heathrow
$847
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 December 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

LGW - SAT

LGWSAT

London Gatwick

Sun 1/11

2:10 pm-11:52 pm

1 stop15h 42m

San Antonio

Mon 2/2

6:30 am-10:00 am

1 stop21h 30m

$585

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Sat 1/10

2:00 pm-11:52 pm

1 stop15h 52m

San Antonio

Mon 2/2

6:30 am-10:00 am

1 stop21h 30m

$605

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Mon 1/12

2:00 pm-11:52 pm

1 stop15h 52m

San Antonio

Mon 2/2

6:30 am-10:00 am

1 stop21h 30m

$613

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Fri 1/9

2:00 pm-11:52 pm

1 stop15h 52m

San Antonio

Mon 2/2

6:30 am-10:00 am

1 stop21h 30m

$636

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Sun 1/11

2:10 pm-11:52 pm

1 stop15h 42m

San Antonio

Thu 1/29

6:30 am-10:00 am

1 stop21h 30m

$639

LondonSan Antonio

LGW - SAT

LGWSAT

London Gatwick

Sat 1/10

2:00 pm-11:52 pm

1 stop15h 52m

San Antonio

Fri 1/30

6:30 am-10:00 am

1 stop21h 30m

$648

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Thu 1/29

7:05 am-10:28 pm

3 stops21h 23m

San Antonio

Thu 2/5

10:45 am-4:00 pm

2 stops23h 15m

$840

LondonSan Antonio

LHR - SAT

LHRSAT

London Heathrow

Mon 1/12

6:40 am-11:23 pm

2 stops22h 43m

San Antonio

Mon 2/2

10:45 am-9:20 am

2 stops40h 35m

$850

LondonSan Antonio

LCY - SAT

LCYSAT

London City

Wed 1/28

7:50 am-7:23 pm

2 stops17h 33m

San Antonio

Wed 2/4

8:10 am-8:50 am

2 stops18h 40m

$1,128

LondonSan Antonio

LCY - SAT

LCYSAT

London City

Thu 1/22

7:50 am-10:42 pm

2 stops20h 52m

San Antonio

Mon 1/26

3:07 pm-8:50 am

2 stops35h 43m

$1,227

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 $1,084 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 $912 on momondo.

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

You could potentially save up to 12% 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 December 2025, prices for London to San Antonio flights are approximately 21% more expensive 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

Fastest flight time

14h 01m

Direct flights

None
The fastest flight from London to San Antonio takes 14h 01m
There are no direct flights from London to San Antonio. There are no popular flight routes from London to San Antonio.
Search flight deals

  • 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 14h 01m.

  • 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
6.7
7,575 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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