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

According to our current data, Scandinavian Airlines ($691), British Airways ($751), and United Airlines ($809) offers the cheapest pricing from San Antonio to London. These flights start at 27% 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 KLM. According to our data, you can fly for as low as $488. Users have also found prices from $501 and $504 on Finnair and American Airlines, respectively.

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

When deciding which route to take from San Antonio to London consider San Antonio - London Heathrow, San Antonio - London Gatwick or San Antonio - London City as they are the most popular.

What are the most popular airlines that fly from San Antonio to London?

When booking a flight from San Antonio to London, you may want to consider flying on American Airlines, British Airways or Delta as they are the most popular for this route.

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 35 days before your planned departure. Booking around this time can save you about 7% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $687 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $958.

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

February can be a great time to fly to London from San Antonio with a flight ticket averaging about $948. Cheapflights users have found deals in the month of February for as cheap as $623. The most expensive prices can be found in the month of January.

Most accurate provider : When it comes to deals on San Antonio-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-London flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Antonio-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 6 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 vacation 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.

$327+ Flights from San Antonio to London

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Find cheap flights from San Antonio to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Antonio to London are usually found in February or April, booked 35 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from San Antonio to London

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$691 (Scandinavian Airlines)
One-way from	$327 (Kiwi.com)
Popular in	January
Cheapest in	February
Average price	$791

Provider with most accurate pricing for San Antonio-London (LON) flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Antonio-London (LON) flights.

Search Deals

From San Antonio to London (LON)

Search Deals

One-way flight from San Antonio to London (LON)

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($117 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

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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 March 28, 2025.

Wed 11/194:10 pmSAT - LHR

2 stops20h 20mScandinavian Airlines

Wed 12/310:20 amLHR - SAT

2 stops19h 06mScandinavian Airlines

Deal found 3/27

$687

Mon 5/1210:01 amSAT - LGW

1 stop17h 59mMultiple Airlines

Mon 6/210:45 amLGW - SAT

1 stop32h 57mMultiple Airlines

Deal found 3/27

$695

Wed 10/12:38 pmSAT - LHR

1 stop17h 47mFinnair

Fri 10/108:20 amLHR - SAT

1 stop15h 26mFinnair

Deal found 3/26

$697

Wed 4/306:22 pmSAT - LHR

1 stop14h 03mBritish Airways

Wed 5/711:30 amLHR - SAT

2 stops17h 32mBritish Airways

Deal found 3/27

$751

Tue 5/136:45 amSAT - LHR

2 stops29h 45mMultiple Airlines

Tue 5/2010:20 amLHR - SAT

2 stops33h 22mMultiple Airlines

Deal found 3/27

$757

Sun 4/277:25 pmSAT - STN

3 stops33h 15mMultiple Airlines

Sun 5/48:15 amSTN - SAT

3 stops32h 38mMultiple Airlines

Deal found 3/28

$759

Wed 11/267:00 amSAT - LHR

2 stops17h 30mAir Canada

Fri 12/511:10 amLHR - SAT

2 stops29h 36mAir Canada

Deal found 3/27

$772

Sun 11/162:10 pmSAT - LHR

1 stop11h 40mDelta

Wed 12/312:10 pmLHR - SAT

1 stop14h 01mDelta

Deal found 3/27

$782

Wed 9/242:38 pmSAT - LHR

1 stop14h 12mIberia

Mon 10/68:20 amLHR - SAT

1 stop17h 07mIberia

Deal found 3/27

$799

Thu 5/112:19 pmSAT - LHR

1 stop13h 21mUnited Airlines

Tue 5/62:05 pmLHR - SAT

2 stops28h 07mUnited Airlines

Deal found 3/27

$809

Wed 9/2412:00 pmSAT - LCY

2 stops18h 30mMultiple Airlines

Mon 10/67:10 pmLCY - SAT

2 stops26h 28mMultiple Airlines

Deal found 3/27

$828

Sat 9/2712:27 pmSAT - LGW

2 stops14h 08mAmerican Airlines

Sat 10/410:40 amLGW - SAT

2 stops18h 57mAmerican Airlines

Deal found 3/27

$846

Best flights from San Antonio to London
Discover carefully curated flight deals from San Antonio to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Mon 5/1211:59 amSAT - LHR

2 stops22h 01mScandinavian Airlines

Tue 8/197:05 amLHR - SAT

3 stops22h 21mScandinavian Airlines

Deal found 3/27

$691

Mon 5/1210:01 amSAT - LGW

1 stop17h 59mMultiple Airlines

Mon 6/210:45 amLGW - SAT

1 stop32h 57mMultiple Airlines

Deal found 3/27

$695

Wed 4/306:22 pmSAT - LHR

1 stop14h 03mBritish Airways

Wed 5/711:30 amLHR - SAT

2 stops17h 32mBritish Airways

Deal found 3/27

$751

Thu 5/112:19 pmSAT - LHR

1 stop13h 21mUnited Airlines

Tue 5/62:05 pmLHR - SAT

2 stops28h 07mUnited Airlines

Deal found 3/27

$809

Fri 4/255:20 pmSAT - LHR

2 stops55h 15mAir Canada

Sun 5/49:30 amLHR - SAT

2 stops35h 49mAir Canada

Deal found 3/27

$822

Mon 9/155:30 amSAT - LHR

1 stop19h 45mDelta

Wed 10/1511:45 amLHR - SAT

2 stops18h 29mDelta

Deal found 3/27

$844

Tue 5/137:34 pmSAT - LHR

1 stop12h 51mIberia

Tue 5/2011:30 amLHR - SAT

2 stops17h 32mIberia

Deal found 3/27

$847

Tue 5/1312:40 pmSAT - LHR

1 stop15h 10mVirgin Atlantic

Tue 5/2011:20 amLHR - SAT

1 stop15h 06mVirgin Atlantic

Deal found 3/27

$853

Wed 5/712:10 pmSAT - LHR

2 stops15h 30mLufthansa

Tue 8/267:30 pmLHR - SAT

2 stops28h 12mLufthansa

Deal found 3/27

$895

Sun 5/116:19 pmSAT - LHR

1 stop13h 11mKLM

Fri 8/2212:25 pmLHR - SAT

1 stop14h 44mKLM

Deal found 3/27

$942

Fri 5/98:00 amSAT - LGW

2 stops18h 10mAmerican Airlines

Fri 8/2212:20 pmLGW - SAT

2 stops16h 49mAmerican Airlines

Deal found 3/27

$974

Thu 4/102:28 pmSAT - LHR

1 stop14h 22mFinnair

Thu 4/1710:30 amLHR - SAT

1 stop13h 48mFinnair

Deal found 3/27

$1,005

Last-minute flights from San Antonio to London
Discover last-minute flight deals from San Antonio to London. Data last updated March 28, 2025 and is based on user searches.

Tue 4/12:11 pmSAT - LHR

2 stops13h 49mAir Canada

Wed 4/169:30 amLHR - SAT

2 stops17h 04mAir Canada

Deal found 3/27

$813

Tue 4/11:52 pmSAT - LHR

1 stop15h 08mIberia

Wed 4/1610:30 amLHR - SAT

1 stop16h 25mIberia

Deal found 3/27

$939

Tue 4/12:32 pmSAT - LHR

1 stop17h 53mFinnair

Wed 4/168:20 amLHR - SAT

1 stop15h 58mFinnair

Deal found 3/26

$947

Tue 4/19:35 amSAT - LHR

3 stops18h 25mMultiple Airlines

Wed 4/169:30 amLHR - SAT

2 stops17h 04mMultiple Airlines

Deal found 3/27

$954

Tue 4/112:27 pmSAT - LHR

3 stops26h 53mScandinavian Airlines

Wed 4/166:40 amLHR - SAT

2 stops23h 50mScandinavian Airlines

Deal found 3/26

$983

Wed 4/25:20 pmSAT - LCY

2 stops17h 05mLufthansa

Tue 4/88:45 amLCY - SAT

2 stops17h 49mLufthansa

Deal found 3/25

$1,532

Thu 4/35:20 pmSAT - LGW

1 stop34h 40mMultiple Airlines

Thu 4/104:05 pmLGW - SAT

2 stops39h 05mMultiple Airlines

Deal found 3/27

$798

Thu 4/35:54 amSAT - LHR

2 stops21h 11mAer Lingus

Thu 4/1012:00 pmLHR - SAT

2 stops17h 58mAer Lingus

Deal found 3/27

$982

Thu 4/37:10 pmSAT - LHR

1 stop11h 20mBritish Airways

Thu 4/108:20 amLHR - SAT

1 stop14h 23mBritish Airways

Deal found 3/27

$996

Thu 4/310:58 amSAT - LCY

3 stops25h 57mMultiple Airlines

Thu 4/108:45 amLCY - SAT

3 stops25h 49mMultiple Airlines

Deal found 3/27

$1,279

Sat 4/56:06 pmSAT - LHR

2 stops30h 24mUnited Airlines

Fri 4/182:05 pmLHR - SAT

2 stops31h 36mUnited Airlines

Deal found 3/27

$940

Wed 4/238:56 pmSAT - LGW

2 stops31h 04mMultiple Airlines

Tue 4/292:00 pmLGW - SAT

1 stop26h 53mMultiple Airlines

Deal found 3/27

$702

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 March 28, 2025.

Mon 7/75:20 amSAT - LGW

1 stop22h 40mMultiple Airlines

Deal found 3/27

$327

Sun 4/277:00 amSAT - LHR

2 stops49h 15mMultiple Airlines

Deal found 3/27

$334

Sun 4/277:00 amSAT - STN

3 stops45h 40mMultiple Airlines

Deal found 3/27

$364

Sun 4/277:00 amSAT - SEN

3 stops33h 25mMultiple Airlines

Deal found 3/27

$422

Sun 4/277:00 amSAT - LCY

3 stops48h 10mMultiple Airlines

Deal found 3/27

$450

Sun 4/274:32 pmSAT - LHR

1 stop12h 38mKLM

Deal found 3/27

$488

Sun 5/112:34 pmSAT - LHR

1 stop14h 16mFinnair

Deal found 3/26

$501

Sun 5/1110:52 amSAT - LHR

2 stops14h 28mAmerican Airlines

Deal found 3/26

$504

Fri 5/164:00 pmSAT - LHR

2 stops35h 20mScandinavian Airlines

Deal found 3/27

$524

Sun 7/611:25 amSAT - LHR

2 stops15h 25mDelta

Deal found 3/27

$559

Sat 7/57:19 pmSAT - LHR

1 stop30h 21mUnited Airlines

Deal found 3/27

$571

Fri 8/112:07 pmSAT - LHR

2 stops50h 53mAir Canada

Deal found 3/27

$577

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 5/12

11:59 am-4:00 pm

2 stops22h 01m

London Heathrow

Tue 8/19

7:05 am-11:26 pm

3 stops22h 21m

$691

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Mon 5/12

10:01 am-10:00 am

1 stop17h 59m

London Gatwick

Mon 6/2

10:45 am-1:42 pm

1 stop32h 57m

$695

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 4/30

6:22 pm-2:25 pm

1 stop14h 03m

London Heathrow

Wed 5/7

11:30 am-11:02 pm

2 stops17h 32m

$751

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 5/13

6:45 am-6:30 pm

2 stops29h 45m

London Heathrow

Tue 5/20

10:20 am-1:42 pm

2 stops33h 22m

$757

San AntonioLondon

SAT - STN

SATSTN

San Antonio

Sun 4/27

7:25 pm-10:40 am

3 stops33h 15m

London Stansted

Sun 5/4

8:15 am-10:53 am

3 stops32h 38m

$759

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Thu 5/1

12:19 pm-7:40 am

1 stop13h 21m

London Heathrow

Tue 5/6

2:05 pm-12:12 pm

2 stops28h 07m

$809

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 4/25

5:20 pm-6:35 am

2 stops55h 15m

London Heathrow

Sun 5/4

9:30 am-3:19 pm

2 stops35h 49m

$822

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 9/15

5:30 am-7:15 am

1 stop19h 45m

London Heathrow

Wed 10/15

11:45 am-12:14 am

2 stops18h 29m

$844

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 5/13

7:34 pm-2:25 pm

1 stop12h 51m

London Heathrow

Tue 5/20

11:30 am-11:02 pm

2 stops17h 32m

$847

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 5/13

12:40 pm-9:50 am

1 stop15h 10m

London Heathrow

Tue 5/20

11:20 am-8:26 pm

1 stop15h 06m

$853

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 49 results

...

Compare providers for flights from San Antonio to London

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to London in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
ScholarTrip	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San Antonio-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-London flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Antonio-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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?

Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from San Antonio to London (average of $661). Flying from San Antonio to London in June is currently the most expensive (average of $1,115). 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?

A simple way to save on the total cost of your ticket is to fly from San Antonio to London in the evening. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the morning.

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

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

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London

Read through reviews of airlines operating flights from San Antonio to London, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,896 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,321 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,267 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,603 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.4

Good

634 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 6 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, Scandinavian Airlines ($691), British Airways ($751), and United Airlines ($809) offers the cheapest pricing from San Antonio to London. These flights start at 27% 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 KLM. According to our data, you can fly for as low as $488. Users have also found prices from $501 and $504 on Finnair and American Airlines, respectively.
What are the most popular routes from San Antonio to London?
When deciding which route to take from San Antonio to London consider San Antonio - London Heathrow, San Antonio - London Gatwick or San Antonio - London City as they are the most popular.
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 vacation 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, November is the cheapest month in which you can book a flight from San Antonio to London (average of $661). Flying from San Antonio to London in June is currently the most expensive (average of $1,115). 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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Thornton Heath

Luton

Wembley

Harrow

Horley

Canterbury

Gatwick

Dover

Orpington

Watford

Milton Keynes

Croydon

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Bromley

Folkestone

Ilford

Aylesbury

Sutton

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from San Antonio to London

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$669	Average$993	FlexibilityNo cancel fee	On-time71%
Iberia	Cheapest$675	Average$893	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$684	Average$986	FlexibilityNo cancel fee	On-time69%
British Airways	Cheapest$702	Average$910	FlexibilityNo cancel fee	On-time70%
Virgin Atlantic	Cheapest$745	Average$1,077	FlexibilityNo cancel fee	On-time72%
Delta	Cheapest$778	Average$1,107	FlexibilityNo cancel fee	On-timeN/A

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$327+ Cheap flights from San Antonio (SAT) to London (LON)

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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from San Antonio to London are usually found in February or April, booked 35 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from San Antonio to London

Most accurate provider

Most trusted provider

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 March 28, 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 March 28, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from San Antonio to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to London in March.

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 round-trip flight from San Antonio to London. Price data was last updated on March 21, 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 March 28, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from San Antonio to London. Price data was last updated on December 16, 2024.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Read through reviews of airlines operating flights from San Antonio to London, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's 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?

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Alternative routes for San Antonio to London

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Top 6 airlines flying from San Antonio to London

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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 March 28, 2025.