What is the cheapest airline that flies from San Antonio to United Kingdom?

United Airlines, Delta, and American Airlines are the most popular carriers operating from San Antonio to United Kingdom

When did momondo last update prices for flights from San Antonio Airport to United Kingdom?

Prices for flights from San Antonio Airport to United Kingdom refresh daily.

How old do you have to be to fly from San Antonio Airport to United Kingdom?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents you'll need for your trip to United Kingdom 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 United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£158 Cheap Flights from San Antonio to the United Kingdom in 2026

Find the cheapest flights from San Antonio to the United Kingdom

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

08:50 - 08:05SAT San Antonio-LHR London Heathrow

17h 15m2 stops Toronto Pearson Intl Dublin

09:50 - 21:13LHR London Heathrow-SAT San Antonio

17h 23m2 stops Dublin Toronto Pearson Intl

£529Aer Lingus

Tue, 18 Aug - Fri, 28 Aug

07:28 - 11:50SAT San Antonio-LHR London Heathrow

22h 22m2 stops San Francisco Vancouver Intl

07:30 - 20:53LHR London Heathrow-SAT San Antonio

19h 23m2 stops Frankfurt am Main Denver Intl

£557United Airlines

Tue, 3 Nov - Thu, 5 Nov

05:30 - 11:15SAT San Antonio-LHR London Heathrow

23h 45m3 stops Houston George Bush Intcntl Los Angeles San Francisco

07:30 - 20:53LHR London Heathrow-SAT San Antonio

19h 23m2 stops Frankfurt am Main Denver Intl

£561United Airlines

Tue, 3 Nov - Thu, 5 Nov

22:41 - 10:00SAT San Antonio-LGW London Gatwick

53h 19m2 stops Las Vegas Harry Reid Intl Orlando

12:35 - 09:02LGW London Gatwick-SAT San Antonio

26h 27m1 stop Orlando

£569Multiple Airlines

Thu, 22 Oct - Sun, 1 Nov

13:25 - 16:15SAT San Antonio-MAN Manchester

20h 50m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

11:30 - 19:23MAN Manchester-SAT San Antonio

37h 53m2 stops Toronto Pearson Intl Houston George Bush Intcntl

£573United Airlines

Tue, 12 Jan - Thu, 14 Jan

12:16 - 09:15SAT San Antonio-LGW London Gatwick

38h 59m2 stops Denver Intl Orlando

12:35 - 09:02LGW London Gatwick-SAT San Antonio

26h 27m1 stop Orlando

£579Multiple Airlines

Sat, 24 Oct - Sun, 1 Nov

12:10 - 17:00SAT San Antonio-MAN Manchester

22h 50m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

11:30 - 13:03MAN Manchester-SAT San Antonio

31h 33m2 stops Toronto Pearson Intl Houston George Bush Intcntl

£579United Airlines

Tue, 12 Jan - Thu, 14 Jan

22:41 - 10:00SAT San Antonio-LGW London Gatwick

53h 19m2 stops Las Vegas Harry Reid Intl Orlando

11:00 - 09:02LGW London Gatwick-SAT San Antonio

27h 02m1 stop Orlando

£584Multiple Airlines

Thu, 22 Oct - Thu, 29 Oct

10:34 - 10:00SAT San Antonio-LGW London Gatwick

17h 26m1 stop Orlando

10:10 - 19:01LGW London Gatwick-SAT San Antonio

38h 51m2 stops Orlando Denver Intl

£585Multiple Airlines

Fri, 23 Oct - Wed, 4 Nov

08:50 - 08:05SAT San Antonio-LHR London Heathrow

17h 15m2 stops Toronto Pearson Intl Dublin

09:50 - 21:13LHR London Heathrow-SAT San Antonio

17h 23m2 stops Dublin Toronto Pearson Intl

£588Aer Lingus

Thu, 20 Aug - Fri, 28 Aug

Cheap last-minute flights

Enter your travel dates to find the best prices.

14:45 - 09:00SAT San Antonio-LHR London Heathrow

12h 15m1 stop Dallas/Fort Worth

11:30 - 22:50LHR London Heathrow-SAT San Antonio

17h 20m2 stops Madrid Barajas Dallas/Fort Worth

£761Iberia

Tue, 11 Aug - Tue, 25 Aug

08:50 - 06:35SAT San Antonio-LHR London Heathrow

15h 45m1 stop Toronto Pearson Intl

17:40 - 21:05LHR London Heathrow-SAT San Antonio

33h 25m1 stop Toronto Pearson Intl

£766Multiple Airlines

Tue, 11 Aug - Tue, 25 Aug

09:10 - 06:55SAT San Antonio-LHR London Heathrow

15h 45m2 stops Denver Intl Washington, D.C. Dulles Intl

14:05 - 23:57LHR London Heathrow-SAT San Antonio

39h 52m2 stops Montreal Pierre Elliott Trudeau Intl Denver Intl

£769Multiple Airlines

Tue, 11 Aug - Tue, 25 Aug

13:33 - 12:15SAT San Antonio-LHR London Heathrow

16h 42m1 stop Chicago O'Hare Intl

10:50 - 22:50LHR London Heathrow-SAT San Antonio

18h 00m2 stops Madrid Barajas Dallas/Fort Worth

£792Iberia

Tue, 11 Aug - Tue, 18 Aug

16:18 - 07:40SAT San Antonio-EDI Edinburgh Turnhouse

33h 22m3 stops Houston George Bush Intcntl Newark Montreal Pierre Elliott Trudeau Intl

11:30 - 22:51EDI Edinburgh Turnhouse-SAT San Antonio

17h 21m1 stop Chicago O'Hare Intl

£799United Airlines

Sat, 8 Aug - Sat, 22 Aug

19:20 - 08:25SAT San Antonio-EDI Edinburgh Turnhouse

31h 05m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

11:30 - 22:51EDI Edinburgh Turnhouse-SAT San Antonio

17h 21m1 stop Chicago O'Hare Intl

£800United Airlines

Sat, 8 Aug - Sat, 22 Aug

12:29 - 06:55SAT San Antonio-LHR London Heathrow

12h 26m1 stop Charlotte Douglas

10:05 - 18:39LHR London Heathrow-SAT San Antonio

14h 34m1 stop Dallas/Fort Worth

£818American Airlines

Tue, 11 Aug - Tue, 18 Aug

11:52 - 10:35SAT San Antonio-EDI Edinburgh Turnhouse

16h 43m1 stop Washington, D.C. Dulles Intl

11:30 - 22:51EDI Edinburgh Turnhouse-SAT San Antonio

17h 21m1 stop Chicago O'Hare Intl

£834United Airlines

Sat, 8 Aug - Sat, 22 Aug

09:37 - 10:35SAT San Antonio-EDI Edinburgh Turnhouse

18h 58m3 stops Houston George Bush Intcntl Chicago O'Hare Intl Washington, D.C. Dulles Intl

12:30 - 22:51EDI Edinburgh Turnhouse-SAT San Antonio

16h 21m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

£837United Airlines

Sat, 8 Aug - Sat, 22 Aug

12:05 - 07:15SAT San Antonio-LHR London Heathrow

13h 10m1 stop Atlanta Hartsfield-Jackson

09:55 - 22:34LHR London Heathrow-SAT San Antonio

18h 39m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

£841Delta

Fri, 7 Aug - Fri, 14 Aug

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Delta flights from San Antonio to United Kingdom

Our best Delta deals on San Antonio to United Kingdom flight tickets

Delta

2 Nov

SAT11:00San Antonio

18h 40m

1 stop

LHR11:40London Heathrow

10 Nov

LHR10:00London Heathrow

17h 58m

2 stops

SAT21:58San Antonio

£648

Delta

30 Dec

SAT10:45San Antonio

18h 55m

1 stop

LHR11:40London Heathrow

13 Jan

LHR10:00London Heathrow

19h 20m

2 stops

SAT23:20San Antonio

£648

Delta

2 Nov

SAT15:05San Antonio

14h 35m

2 stops

LHR11:40London Heathrow

10 Nov

LHR08:40London Heathrow

18h 46m

2 stops

SAT21:26San Antonio

£651

Iberia flights from San Antonio to United Kingdom

Our best Iberia deals on San Antonio to United Kingdom flight tickets

Iberia

2 Dec

SAT15:00San Antonio

13h 00m

1 stop

LHR10:00London Heathrow

9 Dec

LHR19:05London Heathrow

19h 17m

2 stops

SAT08:22San Antonio

£627

Iberia

1 Dec

SAT14:05San Antonio

19h 10m

2 stops

EDI15:15Edinburgh Turnhouse

11 Dec

EDI06:05Edinburgh Turnhouse

23h 53m

2 stops

SAT23:58San Antonio

£631

Iberia

10 Oct

SAT18:38San Antonio

35h 22m

2 stops

LHR12:00London Heathrow

21 Oct

LHR10:50London Heathrow

18h 07m

2 stops

SAT22:57San Antonio

£644

momondo Fare Finder

Use the filters below to find and compare flights from San Antonio to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Tue 18/8

08:50-08:05

2 stops17h 15m

London Heathrow

Fri 28/8

09:50-21:13

2 stops17h 23m

£529

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Tue 3/11

07:28-11:50

2 stops22h 22m

London Heathrow

Thu 5/11

07:30-20:53

2 stops19h 23m

£557

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Tue 3/11

05:30-11:15

3 stops23h 45m

London Heathrow

Thu 5/11

07:30-20:53

2 stops19h 23m

£561

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Thu 22/10

22:41-10:00

2 stops53h 19m

London Gatwick

Sun 1/11

12:35-09:02

1 stop26h 27m

£569

San AntonioManchester

SAT San Antonio - MAN Manchester

SATMAN

San Antonio

Tue 12/1

13:25-16:15

2 stops20h 50m

Manchester

Thu 14/1

11:30-19:23

2 stops37h 53m

£573

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Sat 24/10

12:16-09:15

2 stops38h 59m

London Gatwick

Sun 1/11

12:35-09:02

1 stop26h 27m

£579

San AntonioManchester

SAT San Antonio - MAN Manchester

SATMAN

San Antonio

Tue 12/1

12:10-17:00

2 stops22h 50m

Manchester

Thu 14/1

11:30-13:03

2 stops31h 33m

£579

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Thu 22/10

22:41-10:00

2 stops53h 19m

London Gatwick

Thu 29/10

11:00-09:02

1 stop27h 02m

£584

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Fri 23/10

10:34-10:00

1 stop17h 26m

London Gatwick

Wed 4/11

10:10-19:01

2 stops38h 51m

£585

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Thu 20/8

08:50-08:05

2 stops17h 15m

London Heathrow

Fri 28/8

09:50-21:13

2 stops17h 23m

£588

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Antonio to United Kingdom

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

Prices

Airlines

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from San Antonio is in February. Flight prices, which tend to average around £512, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from San Antonio during the month October is also very affordable. Most momondo users find prices during this month for around £540.

How far in advance should I book a flight from San Antonio to the United Kingdom?

You are more likely to see cheaper flights to United Kingdom from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £684 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from San Antonio for as low as £482 on momondo.

Can stopping save me money on San Antonio to United Kingdom flights?

You could potentially save up to 27% on your flight if you consider stops on a San Antonio to United Kingdom flight.

Cheap San Antonio to United Kingdom flight deals and tips

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

Fastest flight time	11h 15m
Direct flights	None

The fastest flight from San Antonio to United Kingdom takes 11h 15m

There are no direct flights from San Antonio to United Kingdom. There are no popular flight routes from San Antonio to United Kingdom.

Search flight deals

Frequently asked questions about flying from San Antonio to the United Kingdom

When did momondo last update prices for flights from San Antonio Airport to United Kingdom?
Prices for flights from San Antonio Airport to United Kingdom refresh daily.
How old do you have to be to fly from San Antonio Airport to United Kingdom?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents you'll need for your trip to United Kingdom 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 United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to United Kingdom . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to United Kingdom from San Antonio which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to United Kingdom 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 United Kingdom right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to United Kingdom from San Antonio. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.