Find flights
When to book
FAQs

Cheap flights from San Antonio to London from £214

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
3 Jun — 10 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Antonio to London

Enter your travel dates to find the best prices.

Cheapest flights from San Antonio to London
Explore the most affordable flight options available from San Antonio to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 May 2026.

Sat 14/1115:00
SAT
-
LHR
1 stop34h 25m
United Airlines
Tue 17/1106:50
LHR
-
SAT
2 stops19h 16m
United Airlines
Deal found 2/5£552
Mon 16/1116:20
SAT
-
LHR
2 stops23h 00m
United Airlines
Wed 18/1109:30
LHR
-
SAT
2 stops17h 37m
United Airlines
Deal found 30/4£558
Wed 30/1214:01
SAT
-
LHR
2 stops19h 49m
Lufthansa
Thu 14/106:35
LHR
-
SAT
2 stops20h 32m
Lufthansa
Deal found 1/5£640
Wed 19/809:16
SAT
-
LGW
2 stops17h 19m
American Airlines
Thu 27/812:20
LGW
-
SAT
2 stops17h 39m
American Airlines
Deal found 3/5£641
Tue 27/1014:45
SAT
-
LHR
1 stop12h 30m
Iberia
Wed 4/1107:35
LHR
-
SAT
2 stops18h 06m
Iberia
Deal found 1/5£641
Sun 25/1012:24
SAT
-
LHR
1 stop14h 06m
United Airlines
Wed 18/1106:50
LHR
-
SAT
2 stops19h 16m
United Airlines
Deal found 1/5£644
Wed 30/1212:10
SAT
-
LHR
1 stop12h 10m
Delta
Wed 13/111:45
LHR
-
SAT
2 stops18h 43m
Delta
Deal found 30/4£645
Sun 6/914:10
SAT
-
LHR
2 stops21h 30m
Scandinavian Airlines
Sat 19/906:40
LHR
-
SAT
2 stops23h 35m
Scandinavian Airlines
Deal found 3/5£646
Wed 12/812:15
SAT
-
LGW
2 stops15h 10m
Delta
Wed 19/810:25
LGW
-
SAT
2 stops18h 47m
Delta
Deal found 1/5£653
Wed 2/912:15
SAT
-
LCY
2 stops14h 35m
Delta
Wed 16/910:00
LCY
-
SAT
2 stops19h 12m
Delta
Deal found 2/5£666
Tue 16/608:30
SAT
-
STN
3 stops30h 50m
Multiple Airlines
Mon 22/606:30
STN
-
SAT
3 stops20h 43m
Multiple Airlines
Deal found 29/4£677
Tue 2/608:30
SAT
-
STN
3 stops30h 50m
Multiple Airlines
Wed 17/606:30
STN
-
SAT
3 stops20h 48m
Multiple Airlines
Deal found 2/5£690

Find flight deals from San Antonio to London

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 May 2026.

Round-trip from

£641

One-way from

£214

Popular in

June

Cheapest in

February

Average price

£706
American Airlines
  • American Airlines
  • 19/8-27/8
  • 4 total stops
  • 34h 58m total
  • San Antonio to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 1/9
  • 1 total stop
  • 12h 10m total
  • San Antonio to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Antonio to London 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, Cheapflights users made 858,174 searches. Data last updated 4 May 2026.
Use the filters below to find and compare flights from San Antonio to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 12/8

12:10-07:15

1 stop13h 05m

London Heathrow

Wed 19/8

06:30-17:09

2 stops16h 39m

£645

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 27/10

14:10-08:45

2 stops13h 35m

London Heathrow

Wed 4/11

06:30-17:44

2 stops17h 14m

£648

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Wed 12/8

12:15-09:25

2 stops15h 10m

London Gatwick

Wed 19/8

10:25-23:12

2 stops18h 47m

£653

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Sun 13/9

12:15-09:25

2 stops15h 10m

London Gatwick

Thu 17/9

10:25-22:15

2 stops17h 50m

£654

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 1/8

17:57-07:45

1 stop31h 48m

London Heathrow

Sun 16/8

14:05-11:40

2 stops27h 35m

£742

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 1/9

12:10-14:35

3 stops20h 25m

London Heathrow

Tue 15/9

10:20-23:18

2 stops18h 58m

£742

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Tue 16/6

08:30-09:50

2 stops19h 20m

London Gatwick

Mon 22/6

12:40-21:13

1 stop14h 33m

£768

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Wed 8/7

11:29-07:15

2 stops13h 46m

London City

Fri 17/7

10:00-22:22

2 stops18h 22m

£828

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Fri 9/10

13:41-10:00

1 stop14h 19m

London Gatwick

Wed 14/10

14:00-12:46

1 stop28h 46m

£828

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 3/7

16:18-21:25

2 stops23h 07m

London Heathrow

Fri 10/7

09:30-22:51

2 stops43h 21m

£845

Flights are sorted by cheapest return flights first.

Deals found on 3/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from San Antonio to London

Have a flexible travel schedule? Discover the best time to fly to London from San Antonio with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to London

How far ahead should I book a flight from San Antonio to London?

The best time to book flights from San Antonio to London is 32 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Antonio to London?

Currently, August is the cheapest month in which you can book a flight from San Antonio to London (average of £350). Flying from San Antonio to London in June is currently the most expensive (average of £537). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from San Antonio to London?

What’s the top stopover airport for flights from San Antonio to London?

Share of one-stop return flights from San Antonio to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Houston (IAH) – chosen by Cheapflights users on 38% of one-stop itineraries from San Antonio to London on Cheapflights.

What’s the cheapest stopover airport for flights from San Antonio to London?

Average return fare for one-stop flights from San Antonio to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of £411.

What’s the fastest stopover option from San Antonio to London?

Shortest average travel time for one-stop one-way flights from San Antonio to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Houston (IAH) have the shortest average one-way travel time for one-stop routes: 11h 18m.

Which airport typically offers the quickest stopover for flights from San Antonio to London?

Average stopover duration for one-stop one-way flights from San Antonio to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 1h 07m.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Antonio to London?

    Most people fly from San Antonio (SAT) if they book a flight from San Antonio to London. On average, San Antonio has 0 outbound flights to London per day from 0 airlines. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • How long is the flight from San Antonio to London?

    There are many flights that can get you from San Antonio to London in 13h 05m. Fly via Delta or Turkish Airlines to get the fastest option. San Antonio and London are separated by a distance of 4967 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from San Antonio to London?

    The most popular flight routes from San Antonio to London are San Antonio - London Heathrow, San Antonio - London Stansted and San Antonio - London Gatwick.

  • Can I find deals for flights from San Antonio to London that include hotel bookings?

    Yes. In addition to deals on San Antonio to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to London.

  • Can I find deals for business class flights from San Antonio to London?

    Yes. Cheapflights offers flight deals from San Antonio to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to London?

    Currently, August is the cheapest month in which you can book a flight from San Antonio to London (average of £350). Flying from San Antonio to London in June is currently the most expensive (average of £537). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Hounslow
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Antonio to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from San Antonio today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from San Antonio to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Antonio to London.

Can Cheapflights find flights from San Antonio to London with no change fees?

Yes! Cheapflights helps users easily find flights from San Antonio to London with no change fees.

Can Cheapflights notify me if prices for flights from San Antonio to London become cheaper?

Of course! You can now track prices for flights from San Antonio to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.