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

According to our current data, United Airlines (£375), Iberia (£376), and British Airways (£383) offers the cheapest pricing from San Antonio to London. These flights start at 45% 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 £289. Users have also found prices from £292 and £306 on United Airlines and Delta, 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 33 days before your planned departure. Booking around this time can save you about 17% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £533 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £741.

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 £693 on average during February, but can be found for as low as £456.

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.

£210+ Flights from San Antonio to London

Cheapflights Tip: The best prices from San Antonio to London are usually found in February or November, 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	£374
One-way from	£210
Popular in	January
Cheapest in	February
Average price	£867

Lufthansa
26/8-10/9
4 total stops
36h 36m total
San Antonio to London

Search Deals

4/9
2 total stops
42h 00m total
San Antonio to London

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£82 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£20 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 4 July 2025.

Wed 6/811:36SAT - LGW

1 stop16h 24mVirgin Atlantic

Thu 28/812:00LGW - SAT

2 stops17h 57mVirgin Atlantic

Deal found 3/7£363

Tue 26/807:15SAT - LHR

2 stops17h 15mMultiple Airlines

Wed 10/907:25LHR - SAT

2 stops19h 21mMultiple Airlines

Deal found 3/7£374

Mon 18/809:56SAT - LHR

1 stop15h 44mUnited Airlines

Wed 27/814:05LHR - SAT

2 stops31h 25mUnited Airlines

Deal found 3/7£375

Mon 25/818:45SAT - LHR

1 stop12h 00mIberia

Tue 9/909:15LHR - SAT

2 stops19h 45mIberia

Deal found 3/7£376

Mon 18/818:45SAT - LHR

1 stop12h 00mBritish Airways

Wed 27/815:10LHR - SAT

1 stop13h 02mBritish Airways

Deal found 3/7£383

Wed 6/805:30SAT - LHR

2 stops19h 00mAir Canada

Thu 28/809:30LHR - SAT

2 stops19h 29mAir Canada

Deal found 3/7£385

Wed 27/814:10SAT - LHR

2 stops15h 15mDelta

Wed 10/911:30LHR - SAT

2 stops18h 04mDelta

Deal found 3/7£389

Mon 4/812:24SAT - LHR

1 stop12h 21mKLM

Tue 26/809:20LHR - SAT

1 stop13h 46mKLM

Deal found 3/7£392

Tue 7/1021:32SAT - LGW

2 stops31h 23mMultiple Airlines

Wed 15/1010:55LGW - SAT

1 stop18h 35mMultiple Airlines

Deal found 3/7£419

Tue 2/911:33SAT - LGW

1 stop16h 27mDelta

Mon 8/912:00LGW - SAT

2 stops17h 57mDelta

Deal found 3/7£444

Mon 25/817:08SAT - LCY

2 stops17h 17mLufthansa

Tue 9/908:45LCY - SAT

2 stops17h 48mLufthansa

Deal found 3/7£459

Thu 14/806:00SAT - LGW

2 stops22h 50mIberia

Thu 21/811:35LGW - SAT

2 stops38h 20mIberia

Deal found 1/7£508

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 4 July 2025.

Tue 26/807:15SAT - LHR

2 stops17h 15mMultiple Airlines

Wed 10/907:25LHR - SAT

2 stops19h 21mMultiple Airlines

Deal found 3/7£374

Mon 18/809:56SAT - LHR

1 stop15h 44mUnited Airlines

Wed 27/814:05LHR - SAT

2 stops31h 25mUnited Airlines

Deal found 3/7£375

Mon 25/818:45SAT - LHR

1 stop12h 00mIberia

Tue 9/909:15LHR - SAT

2 stops19h 45mIberia

Deal found 3/7£376

Mon 18/818:45SAT - LHR

1 stop12h 00mBritish Airways

Wed 27/815:10LHR - SAT

1 stop13h 02mBritish Airways

Deal found 3/7£383

Wed 6/805:30SAT - LHR

2 stops19h 00mAir Canada

Thu 28/809:30LHR - SAT

2 stops19h 29mAir Canada

Deal found 3/7£385

Wed 27/814:10SAT - LHR

2 stops15h 15mDelta

Wed 10/911:30LHR - SAT

2 stops18h 04mDelta

Deal found 3/7£389

Mon 4/812:24SAT - LHR

1 stop12h 21mKLM

Tue 26/809:20LHR - SAT

1 stop13h 46mKLM

Deal found 3/7£392

Tue 26/811:33SAT - LGW

1 stop16h 27mVirgin Atlantic

Thu 4/912:00LGW - SAT

2 stops17h 57mVirgin Atlantic

Deal found 1/7£451

Sat 27/911:11SAT - LGW

2 stops15h 24mAmerican Airlines

Sat 4/1012:20LGW - SAT

2 stops16h 40mAmerican Airlines

Deal found 2/7£525

Tue 7/1017:09SAT - LCY

2 stops19h 26mLufthansa

Wed 15/1019:10LCY - SAT

2 stops32h 19mLufthansa

Deal found 3/7£533

Tue 7/1021:32SAT - LGW

2 stops31h 23mMultiple Airlines

Wed 15/1010:55LGW - SAT

1 stop18h 35mMultiple Airlines

Deal found 3/7£419

Tue 2/911:33SAT - LGW

1 stop16h 27mDelta

Mon 8/912:00LGW - SAT

2 stops17h 57mDelta

Deal found 3/7£444

Last-minute flights from San Antonio to London
Discover last-minute flight deals from San Antonio to London. Data last updated 4 July 2025 and is based on user searches.

Tue 8/714:11SAT - LGW

1 stop13h 49mMultiple Airlines

Tue 15/714:00LGW - SAT

1 stop35h 22mMultiple Airlines

Deal found 1/7£629

Tue 8/711:36SAT - LHR

2 stops24h 04mScandinavian Airlines

Mon 14/706:40LHR - SAT

2 stops23h 10mScandinavian Airlines

Deal found 1/7£791

Tue 8/716:20SAT - LHR

3 stops35h 40mMultiple Airlines

Fri 11/706:00LHR - SAT

3 stops34h 08mMultiple Airlines

Deal found 1/7£809

Tue 8/709:56SAT - LHR

1 stop15h 44mUnited Airlines

Tue 15/714:05LHR - SAT

2 stops27h 40mUnited Airlines

Deal found 1/7£866

Tue 8/718:12SAT - LHR

1 stop14h 13mIberia

Tue 15/716:25LHR - SAT

1 stop12h 46mIberia

Deal found 1/7£873

Tue 8/707:05SAT - LCY

3 stops29h 40mMultiple Airlines

Tue 15/713:05LCY - SAT

3 stops35h 31mMultiple Airlines

Deal found 1/7£881

Tue 8/707:00SAT - LCY

2 stops27h 25mLufthansa

Tue 15/708:45LCY - SAT

2 stops17h 42mLufthansa

Deal found 1/7£922

Tue 8/711:25SAT - LGW

2 stops16h 35mVirgin Atlantic

Tue 15/712:00LGW - SAT

2 stops16h 18mVirgin Atlantic

Deal found 1/7£1,221

Thu 10/714:15SAT - LHR

1 stop18h 10mFinnair

Sat 9/808:20LHR - SAT

1 stop15h 21mFinnair

Deal found 1/7£787

Sat 12/719:35SAT - LHR

1 stop28h 50mBritish Airways

Sun 27/709:15LHR - SAT

1 stop14h 23mBritish Airways

Deal found 1/7£584

Sat 12/712:24SAT - LHR

2 stops14h 51mDelta

Sun 27/720:10LHR - SAT

1 stop20h 28mDelta

Deal found 1/7£615

Sat 12/710:40SAT - LGW

2 stops17h 20mDelta

Sun 27/712:00LGW - SAT

2 stops18h 14mDelta

Deal found 1/7£789

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 4 July 2025.

Thu 4/920:20SAT - LHR

2 stops42h 00mMultiple Airlines

Deal found 3/7£210

Fri 11/707:45SAT - LGW

1 stop20h 15mMultiple Airlines

Deal found 3/7£235

Thu 4/914:08SAT - STN

3 stops47h 42mMultiple Airlines

Deal found 3/7£273

Tue 26/806:30SAT - LHR

2 stops21h 30mAir Canada

Deal found 2/7£289

Sat 8/1114:01SAT - LHR

1 stop11h 54mUnited Airlines

Deal found 3/7£292

Tue 26/810:45SAT - LGW

2 stops17h 15mDelta

Deal found 2/7£306

Tue 26/811:45SAT - LCY

2 stops22h 40mLufthansa

Deal found 2/7£324

Thu 4/912:44SAT - LHR

1 stop11h 41mBritish Airways

Deal found 3/7£339

Tue 26/806:30SAT - SEN

3 stops56h 20mMultiple Airlines

Deal found 2/7£347

Mon 28/719:35SAT - LGW

2 stops18h 25mIberia

Deal found 1/7£353

Wed 1/1016:21SAT - LHR

1 stop13h 14mLufthansa

Deal found 3/7£386

Tue 26/806:30SAT - LCY

3 stops30h 15mMultiple Airlines

Deal found 2/7£407

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 - LGW

SATLGW

San Antonio

Wed 6/8

11:36-10:00

1 stop16h 24m

London Gatwick

Thu 28/8

12:00-23:57

2 stops17h 57m

£363

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 26/8

07:15-10:00

2 stops20h 45m

London Heathrow

Wed 10/9

07:25-20:46

2 stops19h 21m

£374

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 18/8

09:56-07:40

1 stop15h 44m

London Heathrow

Wed 27/8

14:05-15:30

2 stops31h 25m

£375

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 26/8

17:10-12:45

1 stop13h 35m

London Heathrow

Wed 10/9

15:10-22:13

1 stop13h 03m

£376

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 4/8

14:15-09:00

1 stop12h 45m

London Heathrow

Tue 26/8

18:45-22:59

2 stops34h 14m

£384

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 18/8

19:05-06:30

2 stops29h 25m

London Heathrow

Wed 27/8

09:30-15:30

2 stops36h 00m

£385

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 27/8

14:10-11:25

2 stops15h 15m

London Heathrow

Wed 10/9

11:30-23:34

2 stops18h 04m

£389

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 4/8

12:24-06:45

1 stop12h 21m

London Heathrow

Tue 26/8

09:20-17:06

1 stop13h 46m

£392

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Tue 7/10

21:32-10:55

2 stops31h 23m

London Gatwick

Wed 15/10

10:55-23:30

1 stop18h 35m

£419

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 4/8

16:00-14:35

1 stop16h 35m

London Heathrow

Wed 20/8

15:15-23:57

1 stop14h 42m

£432

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 33 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

7,982 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

7,982 reviews

Delta

8.0

Very Good

7,982 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

1,367 reviews

Delta

8.0

Very Good

7,982 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

8,844 reviews

Delta

8.0

Very Good

7,982 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

654 reviews

Delta

8.0

Very Good

7,982 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

3,895 reviews

Delta

8.0

Very Good

7,982 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 (£375), Iberia (£376), and British Airways (£383) offers the cheapest pricing from San Antonio to London. These flights start at 45% 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 £289. Users have also found prices from £292 and £306 on United Airlines and Delta, 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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Luton

Slough

Wembley

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Watford

Ipswich

Winchester

Maidstone

Guildford

Chichester

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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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Cheap flights from San Antonio to London from £210

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 4/9. 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 November, 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 4 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 4 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 27 June 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 4 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 4 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 San Antonio?

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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.

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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 4 July 2025.