How long is the flight from San Antonio to London?

There are many flights that can get you from San Antonio to London in 12h 58m. Fly via Delta, KLM, or Virgin Atlantic 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.

£234+ Cheap Flights from San Antonio to London

Cheap flight deals from San Antonio to London

Enter your travel dates to find the best prices.

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Best

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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 10 September 2026.

Fri 13/1110:13 -

1 stop17h 47m

Wed 9/1209:45 -

1 stop16h 27m

Deal found 7/9£517

Fri 13/1110:13 -

1 stop17h 47m

Sun 6/1212:35 -

1 stop37h 37m

Deal found 7/9£522

Mon 5/1010:05 -

1 stop17h 55m

Tue 20/1014:00 -

1 stop25h 08m

Deal found 8/9£533

Tue 17/1117:47 -

1 stop12h 23m

Mon 23/1118:45 -

2 stops19h 49m

Deal found 9/9£538

Tue 6/1008:50 -

1 stop15h 45m

Tue 20/1017:40 -

1 stop34h 33m

Deal found 10/9£545

Mon 5/1005:30 -

1 stop24h 05m

Tue 20/1017:40 -

1 stop34h 33m

Deal found 10/9£546

Tue 6/1008:50 -

1 stop21h 00m

Tue 20/1019:30 -

2 stops32h 43m

Deal found 10/9£547

Tue 6/1012:46 -

1 stop11h 34m

Tue 13/1015:15 -

1 stop14h 43m

Deal found 8/9£548

Tue 22/908:50 -

1 stop15h 45m

Fri 2/1014:10 -

2 stops32h 21m

Deal found 10/9£548

Wed 30/1207:00 -

1 stop17h 25m

Thu 14/106:30 -

2 stops21h 02m

Deal found 10/9£550

Mon 5/1009:48 -

3 stops18h 12m

Tue 20/1019:30 -

2 stops32h 43m

Deal found 10/9£552

Mon 5/1016:00 -

2 stops15h 05m

Tue 20/1009:55 -

2 stops19h 12m

Deal found 10/9£553

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 10 September 2026.

Mon 5/1016:00 -

2 stops15h 05m

Tue 20/1009:55 -

2 stops19h 12m

Deal found 10/9£553

Tue 22/918:07 -

1 stop12h 58m

Fri 2/1011:15 -

1 stop16h 04m

Deal found 9/9£555

Mon 19/1012:30 -

1 stop15h 30m

Sun 25/1010:50 -

1 stop18h 43m

Deal found 9/9£592

Mon 5/1012:10 -

1 stop12h 45m

Mon 26/1011:05 -

2 stops41h 30m

Deal found 5/9£663

Wed 11/1112:24 -

2 stops14h 51m

Wed 9/1209:50 -

2 stops17h 17m

Deal found 5/9£739

Thu 1/1008:50 -

2 stops28h 45m

Mon 5/1008:30 -

2 stops19h 43m

Deal found 5/9£795

Tue 10/1111:45 -

2 stops40h 10m

Tue 8/1217:20 -

2 stops35h 38m

Deal found 7/9£979

Mon 26/1016:29 -

1 stop14h 11m

Tue 10/1110:50 -

1 stop14h 58m

Deal found 10/9£555

Sun 25/1010:48 -

1 stop17h 12m

Sun 1/1110:50 -

1 stop14h 58m

Deal found 9/9£592

Mon 5/1010:59 -

2 stops16h 41m

Tue 20/1010:35 -

2 stops18h 32m

Deal found 10/9£564

Sun 25/1010:48 -

1 stop14h 37m

Sun 1/1106:30 -

2 stops19h 18m

Deal found 9/9£587

Thu 1/1008:50 -

2 stops22h 05m

Mon 5/1008:40 -

2 stops19h 33m

Deal found 5/9£807

Tue 27/1014:20 -

2 stops22h 20m

Wed 4/1109:50 -

2 stops17h 36m

Deal found 6/9£834

Wed 30/1211:09 -

2 stops14h 46m

Wed 13/108:40 -

2 stops18h 52m

Deal found 6/9£648

Sun 8/1105:15 -

2 stops23h 40m

Sun 15/1111:55 -

2 stops19h 00m

Deal found 7/9£859

Wed 30/1216:05 -

2 stops15h 40m

Thu 14/108:40 -

2 stops18h 12m

Deal found 6/9£648

Tue 17/1111:45 -

2 stops46h 35m

Mon 23/1110:55 -

2 stops41h 56m

Deal found 6/9£979

Wed 10/212:10 -

2 stops15h 05m

Tue 16/209:50 -

2 stops17h 23m

Deal found 5/9£868

Wed 30/1211:09 -

2 stops15h 51m

Thu 14/110:00 -

2 stops19h 20m

Deal found 7/9£653

Wed 21/1017:58 -

2 stops33h 57m

Wed 28/1010:05 -

2 stops41h 46m

Deal found 5/9£986

Tue 27/1010:48 -

1 stop17h 12m

Wed 4/1106:30 -

2 stops21h 50m

Deal found 6/9£655

Tue 10/1111:45 -

2 stops46h 45m

Tue 8/1206:30 -

2 stops22h 28m

Deal found 7/9£986

Sun 22/1105:15 -

2 stops23h 40m

Mon 30/1111:55 -

2 stops17h 20m

Deal found 7/9£916

Tue 15/1206:16 -

1 stop19h 34m

Tue 22/1210:00 -

2 stops18h 38m

Deal found 7/9£688

Tue 27/1011:45 -

2 stops29h 50m

Wed 4/1110:05 -

2 stops42h 46m

Deal found 7/9£1,026

Sun 25/1019:15 -

2 stops22h 20m

Sun 1/1117:25 -

2 stops35h 26m

Deal found 9/9£1,026

Thu 10/1218:37 -

2 stops15h 58m

Thu 24/1207:45 -

2 stops21h 07m

Deal found 8/9£703

Fri 30/1017:57 -

2 stops41h 23m

Sat 7/1110:55 -

2 stops41h 56m

Deal found 8/9£1,061

Fri 23/1011:47 -

2 stops47h 33m

Tue 27/1017:20 -

2 stops34h 31m

Deal found 8/9£1,117

Fri 23/1011:47 -

2 stops41h 08m

Sat 31/1010:55 -

2 stops41h 56m

Deal found 5/9£1,119

Find flight deals from San Antonio to London

Round-trip from	£517
One-way from	£234
Popular in	June
Cheapest in	February
Average price	£681

13/11-9/12
2 total stops
34h 14m total
San Antonio to London

Search Deals

6/10-31/12
2 total stops
36h 41m total
San Antonio to London

Search Deals

Highest demand for flights based on searches. 24% potential increase in price (£169 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£29 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

Fastest return journey

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Wed 24/2

16:25-11:40

1 stop13h 15m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£245

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Tue 23/2

06:30-09:00

2 stops20h 30m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Wed 24/2

14:10-15:45

2 stops19h 35m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

San AntonioLondon

SAT San Antonio - LCY London City

SATLCY

San Antonio

Tue 23/2

14:00-16:35

2 stops20h 35m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£258

San AntonioLondon

SAT San Antonio - LCY London City

SATLCY

San Antonio

Wed 24/2

16:00-16:35

2 stops18h 35m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£258

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Fri 9/10

22:34-10:00

2 stops53h 26m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£260

San AntonioLondon

SAT San Antonio - LGW London Gatwick

SATLGW

San Antonio

Tue 6/10

10:48-07:55

3 stops39h 07m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£279

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Fri 11/12

08:55-09:40

1 stop18h 45m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£282

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Fri 26/2

16:25-11:40

1 stop13h 15m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£282

San AntonioLondon

SAT San Antonio - LHR London Heathrow

SATLHR

San Antonio

Fri 11/12

07:38-07:45

2 stops18h 07m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£282

Flights are sorted by cheapest return flights first.

Deals found on 8/9

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-LGW

SAT-LHR

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-LGW

SAT-LHR

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 £505). Flying from San Antonio to London in June is currently the most expensive (average of £1,043). 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 £387 and £745 in November.
The cheapest return price found within the last 5 days was £517 on Multiple Airlines (13 Nov–9 Dec).

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

Houston (IAH) – chosen by Cheapflights users on 57% of one-stop itineraries from San Antonio to London on Cheapflights.

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

Houston (IAH) is the most affordable one-stop option, with an average return flight price of £372.

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 12h 58m. Fly via Delta, KLM, or Virgin Atlantic 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 £505). Flying from San Antonio to London in June is currently the most expensive (average of £1,043). 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

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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?

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Cheap flights from San Antonio to London from £234

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. 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 10 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 10 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 10 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 10 September 2026.

Last-minute flights from San Antonio to LondonDiscover last-minute flight deals from San Antonio to London. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from San Antonio to London. Data last updated 10 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 10 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 10 September 2026.

Find flight deals from San Antonio to London

Round-trip from

One-way from

Popular in

Cheapest in

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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 £387 and £745 in November.The cheapest return price found within the last 5 days was £517 on Multiple Airlines (13 Nov–9 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 57% 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.

Houston (IAH) is the most affordable one-stop option, with an average return flight price of £372.

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?

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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

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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 10 September 2026.

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Browse other San Antonio and London flight options. Last updated on 10 September 2026.

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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?

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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 10 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 10 September 2026.

Last-minute flights from San Antonio to London
Discover last-minute flight deals from San Antonio to London. Data last updated 10 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 10 September 2026.

San Antonio to London flights typically cost between £387 and £745 in November.
The cheapest return price found within the last 5 days was £517 on Multiple Airlines (13 Nov–9 Dec).