How long is the flight from San Antonio to London?

There are many flights that can get you from San Antonio to London in 17h 25m. 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.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 Gatwick and San Antonio - London Stansted.

What is the cheapest time of day to fly from SAT to LON?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Antonio to London as you normally would.

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.

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.

£248+ Cheap Flights from San Antonio to London

Cheap flight deals from San Antonio to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 21 September 2026.

Tue 13/1016:28 -

1 stop14h 22m

Tue 3/1108:25 -

2 stops18h 43m

Deal found 20/9£537

Wed 30/1215:00 -

1 stop11h 15m

Wed 13/107:35 -

2 stops18h 11m

Deal found 16/9£538

Tue 17/1109:22 -

1 stop15h 28m

Mon 23/1119:40 -

2 stops18h 54m

Deal found 20/9£543

Wed 30/1215:00 -

1 stop11h 15m

Thu 14/107:30 -

2 stops21h 29m

Deal found 16/9£543

Mon 26/1014:20 -

1 stop12h 20m

Tue 10/1113:00 -

2 stops40h 38m

Deal found 19/9£546

Mon 2/1112:45 -

1 stop15h 15m

Mon 9/1111:00 -

1 stop18h 55m

Deal found 18/9£549

Tue 1/1206:45 -

2 stops18h 25m

Tue 8/1213:00 -

2 stops39h 57m

Deal found 17/9£549

Mon 5/1005:30 -

1 stop24h 05m

Thu 15/1017:40 -

1 stop34h 33m

Deal found 16/9£552

Wed 14/1012:50 -

2 stops17h 00m

Wed 21/1006:00 -

2 stops22h 13m

Deal found 16/9£552

Wed 30/1209:23 -

1 stop16h 52m

Wed 13/114:55 -

2 stops36h 05m

Deal found 18/9£553

Tue 27/1010:48 -

1 stop17h 12m

Wed 4/1106:30 -

2 stops21h 50m

Deal found 20/9£554

Wed 4/1106:35 -

2 stops28h 00m

Wed 11/1107:45 -

2 stops20h 21m

Deal found 20/9£586

Best flights from San Antonio to London
Discover carefully curated flight deals from San Antonio to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Wed 30/1207:00 -

1 stop17h 25m

Wed 13/106:30 -

2 stops16h 48m

Deal found 19/9£556

Tue 13/1013:20 -

1 stop13h 30m

Tue 3/1108:55 -

1 stop14h 19m

Deal found 20/9£561

Wed 7/1007:35 -

1 stop18h 10m

Thu 15/1017:40 -

1 stop34h 33m

Deal found 16/9£561

Mon 5/1017:30 -

2 stops18h 25m

Mon 12/1018:30 -

2 stops58h 20m

Deal found 18/9£786

Tue 1/1211:47 -

2 stops40h 08m

Sun 6/1210:55 -

2 stops58h 53m

Deal found 20/9£964

Sat 13/319:00 -

2 stops21h 35m

Sat 27/305:55 -

2 stops21h 53m

Deal found 19/9£1,048

Wed 30/1207:00 -

1 stop17h 25m

Thu 14/106:30 -

2 stops21h 02m

Deal found 20/9£556

Sun 8/1117:34 -

1 stop12h 26m

Sat 14/1111:05 -

2 stops42h 33m

Deal found 16/9£603

Tue 27/1010:48 -

2 stops15h 57m

Wed 4/1111:30 -

2 stops17h 56m

Deal found 19/9£558

Wed 21/1012:30 -

1 stop15h 30m

Thu 5/1110:45 -

1 stop19h 45m

Deal found 18/9£561

Fri 16/1006:35 -

1 stop18h 10m

Mon 26/1013:00 -

2 stops31h 13m

Deal found 16/9£622

Wed 21/1018:24 -

1 stop12h 41m

Wed 4/1109:50 -

1 stop17h 20m

Deal found 18/9£561

Wed 30/1218:30 -

2 stops16h 05m

Thu 14/108:40 -

2 stops18h 52m

Deal found 20/9£592

Wed 30/1218:30 -

2 stops16h 05m

Wed 13/107:45 -

2 stops19h 07m

Deal found 19/9£592

Tue 1/1211:47 -

2 stops22h 43m

Sun 6/1206:30 -

2 stops22h 29m

Deal found 20/9£966

Wed 21/1013:20 -

1 stop13h 30m

Mon 2/1120:10 -

1 stop22h 08m

Deal found 18/9£598

Thu 17/1205:05 -

2 stops23h 50m

Mon 28/1211:55 -

2 stops17h 20m

Deal found 18/9£1,117

Tue 27/1011:45 -

2 stops41h 10m

Wed 4/1110:55 -

2 stops41h 56m

Deal found 19/9£1,016

Tue 20/1010:48 -

1 stop13h 37m

Mon 2/1110:50 -

1 stop14h 58m

Deal found 18/9£598

Mon 2/1118:03 -

2 stops33h 52m

Mon 9/1110:55 -

2 stops41h 56m

Deal found 18/9£1,017

Tue 27/1011:45 -

2 stops40h 25m

Wed 4/1106:30 -

2 stops22h 21m

Deal found 20/9£1,022

Wed 13/117:55 -

2 stops33h 15m

Sat 23/105:55 -

2 stops22h 55m

Deal found 16/9£1,038

Sat 6/316:00 -

2 stops15h 15m

Fri 12/310:00 -

2 stops18h 27m

Deal found 16/9£717

Sun 18/1017:58 -

2 stops40h 42m

Sun 25/1017:20 -

2 stops34h 31m

Deal found 20/9£1,057

Mon 5/1011:47 -

2 stops22h 53m

Thu 15/1017:35 -

2 stops28h 18m

Deal found 16/9£1,058

Sun 7/317:55 -

2 stops40h 25m

Tue 16/317:20 -

2 stops34h 28m

Deal found 18/9£1,058

Tue 29/1218:29 -

2 stops16h 06m

Tue 5/110:00 -

2 stops19h 20m

Deal found 16/9£895

Sun 7/317:55 -

2 stops33h 15m

Tue 16/317:25 -

2 stops34h 23m

Deal found 18/9£1,064

Tue 29/1218:29 -

2 stops16h 06m

Wed 6/107:45 -

2 stops19h 07m

Deal found 16/9£895

Mon 5/1011:47 -

2 stops22h 53m

Thu 15/1010:50 -

2 stops35h 03m

Deal found 16/9£1,064

Find flight deals from San Antonio to London

Round-trip from	£535
One-way from	£248
Popular in	June
Cheapest in	February
Average price	£689

Virgin Atlantic
6/12-22/12
2 total stops
32h 35m total
San Antonio to London

Search Deals

United Airlines
31/1-31/12
1 total stop
20h 10m total
San Antonio to London

Search Deals

Highest demand for flights based on searches. 22% potential increase in price (£157 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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 San Antonio - LHR London Heathrow

SATLHR

San Antonio

Sun 31/1

10:00-08:25

2 stops16h 25m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£248

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Sun 31/1

10:45-09:00

2 stops16h 15m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Thu 31/12

11:50-10:50

2 stops17h 00m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£281

San AntonioLondon

SAT San Antonio - LCY London City

SATLCY

San Antonio

Thu 31/12

11:09-09:30

2 stops16h 21m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£298

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Wed 28/10

20:20-10:55

2 stops33h 35m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£301

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 28/10

20:20-10:50

2 stops33h 30m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£301

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Thu 24/12

07:38-10:15

1 stop20h 37m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£324

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 23/12

12:25-20:35

2 stops26h 10m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£328

San AntonioLondon

SAT San Antonio - STN London Stansted

SATSTN

San Antonio

Sun 31/1

20:22-21:25

3 stops43h 03m

London Stansted

Wed 31/12

00:00-17:00

Nonstop0h 00m

£349

San AntonioLondon

SAT San Antonio - LCY London City

SATLCY

San Antonio

Wed 28/10

20:20-10:45

3 stops57h 25m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£374

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

SAT-LON

SAT-LHR

SAT-LGW

SAT-LCY

SAT-STN

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

SAT-LON

SAT-LHR

SAT-LGW

SAT-LCY

SAT-STN

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

Currently, February is the cheapest month in which you can book a flight from San Antonio to London (average of £511). Flying from San Antonio to London in June is currently the most expensive (average of £1,055). 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?

Airfare is typical for this route at the moment.

San Antonio to London flights typically cost between £494 and £807 in December.
The cheapest return price found within the last 5 days was £535 on Virgin Atlantic (6 Dec–22 Dec).

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

Houston (IAH) – chosen by Cheapflights users on 50% of one-stop itineraries from San Antonio to London on Cheapflights.

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

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £469.

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

Flights via Atlanta (ATL) have the shortest average one-way travel time for one-stop routes: 10h 45m.

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

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 04m.

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 20 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.

Related info for your journey

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 17h 25m. 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 Gatwick and San Antonio - London Stansted.
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, February is the cheapest month in which you can book a flight from San Antonio to London (average of £511). Flying from San Antonio to London in June is currently the most expensive (average of £1,055). 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

Hounslow

Luton

Milton Keynes

Gatwick

Wembley

Slough

Ilford

Hayes

Croydon

Colchester

Eastbourne

Brentford

Enfield

Southend-on-Sea

Barnet

Southall

Watford

Kingston upon Thames

Dagenham

Dover

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

London flight routes

Other flight options

Popular flights

Alternative routes for San Antonio to London

Dallas/Fort Worth to Heathrow flights

Hobby to Heathrow flights

George Bush Intcntl to Heathrow flights

Dallas/Fort Worth to Gatwick flights

Dallas/Fort Worth to Stansted flights

Hobby to Gatwick flights

Austin to Heathrow flights

George Bush Intcntl to Gatwick flights

Dallas/Fort Worth to London City flights

Austin to Gatwick flights

Dallas/Fort Worth to Luton flights

Austin to Stansted flights

Austin to London City flights

George Bush Intcntl to Luton flights

Dallas/Fort Worth to Edinburgh flights

San Antonio to Heathrow flights

San Antonio to Gatwick flights

Dallas/Fort Worth to Manchester flights

San Antonio to Stansted flights

Austin to Edinburgh flights

El Paso to Heathrow flights

Hobby to Manchester flights

Austin to Manchester flights

George Bush Intcntl to Manchester flights

George Bush Intcntl to Edinburgh flights

El Paso to Gatwick flights

Dallas/Fort Worth to Birmingham flights

Hobby to Birmingham flights

Dallas/Fort Worth to Newcastle upon Tyne flights

Dallas/Fort Worth to Bristol flights

San Antonio to Manchester flights

McAllen to Heathrow flights

George Bush Intcntl to Birmingham flights

San Antonio to Edinburgh flights

Harlingen to Heathrow flights

Fly with Cheapflights

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.

Cheap flights from San Antonio to London from £248

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Antonio to London

Cheapest flights from San Antonio to LondonExplore 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 21 September 2026.

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 21 September 2026.

Best flights from San Antonio to LondonDiscover carefully curated flight deals from San Antonio to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Discover carefully curated flight deals from San Antonio to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Last-minute flights from San Antonio to LondonDiscover last-minute flight deals from San Antonio to London. Data last updated 21 September 2026 and is based on user searches.

Discover last-minute flight deals from San Antonio to London. Data last updated 21 September 2026 and is based on user searches.

One-way flights from San Antonio to LondonSearch for one-way flight options from San Antonio to London. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

Search for one-way flight options from San Antonio to London. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

Find flight deals from San Antonio to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

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

Airfare is typical for this route at the moment.

San Antonio to London flights typically cost between £494 and £807 in December.The cheapest return price found within the last 5 days was £535 on Virgin Atlantic (6 Dec–22 Dec).

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 50% 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.

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £469.

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 Atlanta (ATL) have the shortest average one-way travel time for one-stop routes: 10h 45m.

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 Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 04m.

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 20 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.

Related info for your journey

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

How long is the flight from San Antonio to London?

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

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

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

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

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

Travelling to a place near London?

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.

Alternative routes for San Antonio to London

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from San Antonio to London by cabin class

Find flights from San Antonio to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 21 September 2026.

San Antonio and London flights

Browse other San Antonio and London flight options. Last updated on 21 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

Can Cheapflights 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?

100% Free

Book with Flexibility

Travel Smart

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 21 September 2026.

Best flights from San Antonio to London
Discover carefully curated flight deals from San Antonio to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Last-minute flights from San Antonio to London
Discover last-minute flight deals from San Antonio to London. Data last updated 21 September 2026 and is based on user searches.

One-way flights from San Antonio to London
Search for one-way flight options from San Antonio to London. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

San Antonio to London flights typically cost between £494 and £807 in December.
The cheapest return price found within the last 5 days was £535 on Virgin Atlantic (6 Dec–22 Dec).