What are the cheapest airlines flying from San Antonio to London round-trip?

According to our current data, United Airlines (£363), Air Canada (£363), and Virgin Atlantic (£368) offers the cheapest pricing from San Antonio to London. These flights start at 48% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from San Antonio to London one-way?

For one-way options, check prices for Air Canada. According to our data, you can fly for as low as £273. Users have also found prices from £293 and £300 on United Airlines and British Airways, respectively.

What is the cheapest day to fly from San Antonio to London?

Travellers seeking maximum savings on their San Antonio to London flight should consider departing on Friday at midday when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 City.

What is the cheapest day to fly round-trip from San Antonio to London?

Flights from San Antonio to London are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

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

To save on the cost of your flight from San Antonio to London, book at least 43 days before your planned departure. Booking around this time can save you about 21% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £543 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £736.

What is the cheapest month to fly from San Antonio to London?

Due to multiple factors, expect to potentially pay more when booking in January. For low rates, February can be a great choice for travel to London. Flights to London from San Antonio in February are about £704 on average during February, but can be found for as low as £465.

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.

£169+ Flights from San Antonio to London

Cheapflights Tip: The best prices from San Antonio to London are usually found in February or April, booked 81 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from San Antonio to London

Round-trip from	£363
One-way from	£169
Popular in	January
Cheapest in	February
Average price	£883

United Airlines
11/8-26/8
2 total stops
32h 54m total
San Antonio to London

Search Deals

9/8
1 total stop
17h 42m total
San Antonio to London

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£81 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from San Antonio to London

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 18 July 2025.

Mon 11/817:20SAT - LHR

1 stop12h 25mUnited Airlines

Tue 26/808:30LHR - SAT

1 stop20h 29mUnited Airlines

Deal found 17/7£363

Tue 19/807:15SAT - LHR

2 stops17h 15mAir Canada

Wed 3/909:30LHR - SAT

2 stops19h 28mAir Canada

Deal found 15/7£363

Mon 11/810:45SAT - LGW

2 stops17h 15mVirgin Atlantic

Tue 26/812:00LGW - SAT

2 stops17h 57mVirgin Atlantic

Deal found 17/7£368

Tue 26/806:40SAT - LGW

2 stops21h 20mDelta

Tue 2/912:00LGW - SAT

1 stop28h 38mDelta

Deal found 17/7£372

Mon 8/917:16SAT - LHR

1 stop13h 29mBritish Airways

Tue 16/908:20LHR - SAT

1 stop15h 27mBritish Airways

Deal found 17/7£380

Tue 26/818:45SAT - LHR

1 stop13h 40mIberia

Tue 2/918:45LHR - SAT

2 stops32h 06mIberia

Deal found 17/7£388

Tue 5/812:24SAT - LHR

1 stop12h 51mDelta

Fri 22/811:30LHR - SAT

2 stops16h 52mDelta

Deal found 17/7£389

Sun 21/920:37SAT - LGW

1 stop30h 53mMultiple Airlines

Sat 27/914:00LGW - SAT

1 stop31h 55mMultiple Airlines

Deal found 16/7£398

Thu 14/811:33SAT - LHR

1 stop12h 52mVirgin Atlantic

Thu 21/813:05LHR - SAT

1 stop15h 23mVirgin Atlantic

Deal found 16/7£409

Sat 27/907:02SAT - LGW

2 stops19h 08mBritish Airways

Sat 4/1012:20LGW - SAT

2 stops15h 53mBritish Airways

Deal found 16/7£457

Tue 26/813:44SAT - LCY

2 stops20h 41mLufthansa

Wed 3/908:45LCY - SAT

2 stops17h 48mLufthansa

Deal found 17/7£484

Mon 4/810:45SAT - LGW

2 stops17h 15mKLM

Fri 15/812:00LGW - SAT

2 stops27h 40mKLM

Deal found 16/7£510

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 18 July 2025.

Mon 11/817:20SAT - LHR

1 stop12h 25mUnited Airlines

Tue 26/808:30LHR - SAT

1 stop20h 29mUnited Airlines

Deal found 17/7£363

Tue 19/807:15SAT - LHR

2 stops17h 15mAir Canada

Wed 3/909:30LHR - SAT

2 stops19h 28mAir Canada

Deal found 15/7£363

Mon 11/810:45SAT - LGW

2 stops17h 15mVirgin Atlantic

Tue 26/812:00LGW - SAT

2 stops17h 57mVirgin Atlantic

Deal found 17/7£368

Tue 26/806:40SAT - LGW

2 stops21h 20mDelta

Tue 2/912:00LGW - SAT

1 stop28h 38mDelta

Deal found 17/7£372

Mon 8/917:16SAT - LHR

1 stop13h 29mBritish Airways

Tue 16/908:20LHR - SAT

1 stop15h 27mBritish Airways

Deal found 17/7£380

Tue 26/818:45SAT - LHR

1 stop13h 40mIberia

Tue 2/918:45LHR - SAT

2 stops32h 06mIberia

Deal found 17/7£388

Sun 21/920:37SAT - LGW

1 stop30h 53mMultiple Airlines

Sat 27/914:00LGW - SAT

1 stop31h 55mMultiple Airlines

Deal found 16/7£398

Tue 26/813:44SAT - LCY

2 stops20h 41mLufthansa

Wed 3/908:45LCY - SAT

2 stops17h 48mLufthansa

Deal found 17/7£484

Mon 4/810:45SAT - LGW

2 stops17h 15mKLM

Fri 15/812:00LGW - SAT

2 stops27h 40mKLM

Deal found 16/7£510

Tue 5/812:24SAT - LHR

1 stop12h 51mDelta

Fri 22/811:30LHR - SAT

2 stops16h 52mDelta

Deal found 17/7£389

Thu 14/811:33SAT - LHR

1 stop12h 52mVirgin Atlantic

Thu 21/813:05LHR - SAT

1 stop15h 23mVirgin Atlantic

Deal found 16/7£409

Sat 27/907:02SAT - LGW

2 stops19h 08mBritish Airways

Sat 4/1012:20LGW - SAT

2 stops15h 53mBritish Airways

Deal found 16/7£457

Last-minute flights from San Antonio to London
Discover last-minute flight deals from San Antonio to London. Data last updated 18 July 2025 and is based on user searches.

Wed 23/713:25SAT - LHR

1 stop11h 55mBritish Airways

Tue 12/808:20LHR - SAT

1 stop13h 19mBritish Airways

Deal found 16/7£458

Wed 23/705:04SAT - LGW

2 stops23h 36mAmerican Airlines

Thu 14/815:05LGW - SAT

2 stops32h 33mAmerican Airlines

Deal found 16/7£584

Wed 23/718:28SAT - LGW

2 stops43h 27mIberia

Wed 13/811:35LGW - SAT

2 stops38h 58mIberia

Deal found 16/7£587

Thu 24/707:30SAT - LHR

2 stops16h 25mUnited Airlines

Tue 12/808:30LHR - SAT

2 stops17h 57mUnited Airlines

Deal found 16/7£583

Thu 24/718:20SAT - LGW

2 stops33h 40mKLM

Wed 13/812:00LGW - SAT

2 stops17h 57mKLM

Deal found 16/7£683

Sat 26/717:49SAT - LGW

2 stops34h 11mDelta

Wed 13/812:00LGW - SAT

2 stops27h 40mDelta

Deal found 16/7£435

Sun 27/719:35SAT - LHR

1 stop11h 10mIberia

Tue 12/816:25LHR - SAT

1 stop12h 34mIberia

Deal found 18/7£394

Sun 27/711:36SAT - LHR

1 stop13h 39mDelta

Tue 12/811:30LHR - SAT

2 stops18h 27mDelta

Deal found 18/7£457

Sun 27/714:11SAT - LGW

1 stop38h 44mMultiple Airlines

Fri 15/810:55LGW - SAT

1 stop38h 28mMultiple Airlines

Deal found 16/7£607

Sun 27/705:30SAT - LHR

2 stops19h 05mAir Canada

Tue 12/809:30LHR - SAT

2 stops37h 30mAir Canada

Deal found 18/7£702

Mon 28/711:36SAT - LHR

1 stop12h 49mVirgin Atlantic

Tue 12/809:40LHR - SAT

2 stops16h 47mVirgin Atlantic

Deal found 16/7£466

Mon 28/711:36SAT - LGW

1 stop16h 24mVirgin Atlantic

Tue 12/812:00LGW - SAT

1 stop28h 38mVirgin Atlantic

Deal found 16/7£645

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 18 July 2025.

Sat 9/811:13SAT - LGW

1 stop17h 42mMultiple Airlines

Deal found 17/7£169

Sat 9/811:13SAT - LHR

2 stops24h 32mMultiple Airlines

Deal found 17/7£217

Mon 11/814:11SAT - STN

3 stops42h 09mMultiple Airlines

Deal found 18/7£242

Sun 10/805:15SAT - LHR

2 stops22h 45mAir Canada

Deal found 18/7£273

Sat 9/811:13SAT - SEN

2 stops41h 37mMultiple Airlines

Deal found 17/7£280

Sun 10/812:55SAT - LHR

1 stop16h 50mUnited Airlines

Deal found 18/7£293

Mon 11/814:11SAT - LCY

3 stops35h 44mMultiple Airlines

Deal found 18/7£299

Mon 20/1012:22SAT - LHR

1 stop12h 03mBritish Airways

Deal found 16/7£300

Mon 18/810:35SAT - LGW

2 stops17h 25mVirgin Atlantic

Deal found 18/7£312

Tue 30/912:15SAT - LHR

1 stop12h 30mKLM

Deal found 15/7£312

Sat 8/1115:20SAT - LHR

1 stop33h 30mIberia

Deal found 16/7£322

Fri 7/1112:15SAT - LHR

1 stop13h 35mVirgin Atlantic

Deal found 16/7£328

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

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 11/8

17:20-11:45

1 stop12h 25m

London Heathrow

Tue 26/8

08:30-22:59

1 stop20h 29m

£363

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 19/8

07:15-06:30

2 stops17h 15m

London Heathrow

Wed 3/9

09:30-22:58

2 stops19h 28m

£363

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Mon 11/8

10:45-10:00

2 stops17h 15m

London Gatwick

Tue 26/8

12:00-23:57

2 stops17h 57m

£368

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Tue 26/8

06:40-10:00

2 stops21h 20m

London Gatwick

Tue 2/9

12:00-10:38

1 stop28h 38m

£372

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 8/9

17:16-12:45

1 stop13h 29m

London Heathrow

Tue 16/9

08:20-17:47

1 stop15h 27m

£380

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 26/8

18:45-14:25

1 stop13h 40m

London Heathrow

Tue 2/9

18:45-20:51

2 stops32h 06m

£388

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 5/8

12:24-07:15

1 stop12h 51m

London Heathrow

Fri 22/8

11:30-22:22

2 stops16h 52m

£389

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Sun 21/9

20:37-09:30

1 stop30h 53m

London Gatwick

Sat 27/9

14:00-15:55

1 stop31h 55m

£398

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Thu 14/8

11:33-06:25

1 stop12h 52m

London Heathrow

Thu 21/8

13:05-22:28

1 stop15h 23m

£409

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Sat 27/9

07:02-08:10

2 stops19h 08m

London Gatwick

Sat 4/10

12:20-22:13

2 stops15h 53m

£457

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 38 results

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 81 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, January is the cheapest month in which you can book a flight from San Antonio to London (average of £112). Flying from San Antonio to London in August is currently the most expensive (average of £164). 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.

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

Unlike at midday, when flights are generally more expensive, you can save up to 5% on flights from San Antonio to London by exploring options for tickets in the afternoon.

Reviews of airlines servicing London

Read reviews from past customers who have flown with Delta, KLM, andUnited Airlines from San Antonio to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,958 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,374 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,865 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

655 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Turkish Airlines

7.3

Good

3,906 reviews

Delta

8.0

Very Good

7,958 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection 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.
What are the cheapest airlines flying from San Antonio to London round-trip?
According to our current data, United Airlines (£363), Air Canada (£363), and Virgin Atlantic (£368) offers the cheapest pricing from San Antonio to London. These flights start at 48% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from San Antonio to London one-way?
For one-way options, check prices for Air Canada. According to our data, you can fly for as low as £273. Users have also found prices from £293 and £300 on United Airlines and British Airways, respectively.
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 City.
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, January is the cheapest month in which you can book a flight from San Antonio to London (average of £112). Flying from San Antonio to London in August is currently the most expensive (average of £164). 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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Slough

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Ilford

Hayes

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Watford

Winchester

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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.

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

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Cheap flights from San Antonio to London from £169

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from San Antonio to London are usually found in February or April, booked 81 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from San Antonio to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 18 July 2025.

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 18 July 2025.

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

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?

Use this chart to determine the optimal time to book a return flight from San Antonio to London. Price data was last updated on 11 July 2025.

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

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

Find hourly flight availability from San Antonio to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 July 2025.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 18 July 2025.

Read reviews from past customers who have flown with Delta, KLM, andUnited Airlines from San Antonio to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines flying from San Antonio to London round-trip?

What are the cheapest airlines to fly from San Antonio to London one-way?

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

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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.

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?

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 18 July 2025.