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$335+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to London are usually found in February or November, booked 70 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from San Antonio to London

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$704
(Mytrip)

One-way from

$335
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$782
Provider with most accurate pricing for San Antonio-London (LON) flight deals.
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Provider most trusted by Cheapflights users for San Antonio-London (LON) flights.
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From San Antonio to London (LON)
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One-way flight from San Antonio to London (LON)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($132 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1512:15 pmSAT - LHR
2 stops21h 45mScandinavian Airlines
Wed 10/1510:20 amLHR - SAT
2 stops19h 01mScandinavian Airlines
Deal found 4/29$682
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:00 pmSAT - LHR
1 stop16h 15mDelta
Wed 12/311:30 amLHR - SAT
2 stops18h 55mDelta
Deal found 4/29$699
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:05 amSAT - LGW
3 stops25h 35mMultiple Airlines
Tue 5/207:50 pmLGW - SAT
3 stops46h 42mMultiple Airlines
Deal found 4/29$704
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:40 pmSAT - LHR
1 stop11h 35mAmerican Airlines
Wed 12/38:20 amLHR - SAT
1 stop13h 29mAmerican Airlines
Deal found 4/29$708
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:05 amSAT - LHR
3 stops31h 15mMultiple Airlines
Tue 5/209:25 pmLHR - SAT
3 stops31h 26mMultiple Airlines
Deal found 4/29$756
This Cheapflightsfares deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:30 pmSAT - LHR
1 stop11h 20mIberia
Mon 9/1512:00 pmLHR - SAT
1 stop17h 37mIberia
Deal found 4/29$775
This deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:22 pmSAT - LHR
1 stop13h 13mUnited Airlines
Tue 9/231:40 pmLHR - SAT
1 stop13h 37mUnited Airlines
Deal found 4/29$788
This Cheapflightsfares deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/195:30 pmSAT - LHR
1 stop11h 20mBritish Airways
Sun 10/262:55 pmLHR - SAT
1 stop12h 56mBritish Airways
Deal found 4/29$804
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:01 pmSAT - LCY
2 stops16h 49mMultiple Airlines
Wed 11/2610:00 amLCY - SAT
2 stops18h 33mMultiple Airlines
Deal found 4/27$819
This KLM deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:45 amSAT - LHR
1 stop14h 00mKLM
Wed 9/2412:45 pmLHR - SAT
1 stop14h 44mKLM
Deal found 4/29$829
This Cheapflightsfares deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:00 amSAT - LCY
2 stops27h 25mLufthansa
Thu 10/168:45 amLCY - SAT
2 stops18h 11mLufthansa
Deal found 4/28$839
This StudentUniverse deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/292:15 pmSAT - LHR
1 stop12h 45mFinnair
Mon 9/84:10 pmLHR - SAT
2 stops31h 32mFinnair
Deal found 4/29$840

Cheapflights Fare Finder

Customize your flight search to find flights from San Antonio to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from San Antonio to London that are best for you.

Fly from

San Antonio

Fly to

London

Route

Depart

Return

Price

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Tue 5/13

7:05 am-2:40 pm

3 stops25h 35m

London Gatwick

Tue 5/20

7:50 pm-12:32 pm

3 stops46h 42m

$704

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 5/13

7:05 am-8:20 pm

3 stops31h 15m

London Heathrow

Tue 5/20

9:25 pm-10:51 pm

3 stops31h 26m

$756

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Tue 10/7

7:00 am-4:25 pm

2 stops27h 25m

London City

Thu 10/16

8:45 am-8:56 pm

2 stops18h 11m

$839

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Sat 10/18

12:00 pm-1:45 pm

2 stops19h 45m

London City

Fri 10/31

10:00 am-10:33 pm

2 stops17h 33m

$869

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 5/6

12:13 pm-7:15 am

1 stop13h 02m

London Heathrow

Tue 5/13

6:15 am-5:20 pm

2 stops17h 05m

$874

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 5/13

6:34 pm-7:20 am

1 stop30h 46m

London Heathrow

Tue 5/20

8:20 am-7:42 pm

1 stop17h 22m

$877

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 5/12

11:59 am-5:40 pm

2 stops23h 41m

London Heathrow

Tue 8/19

6:40 am-11:26 pm

2 stops22h 46m

$899

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 5/12

6:06 pm-1:10 pm

1 stop13h 04m

London Heathrow

Tue 8/19

9:20 am-5:07 pm

1 stop13h 47m

$911

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Thu 5/8

3:15 pm-1:25 pm

2 stops16h 10m

London Heathrow

Tue 5/13

1:25 pm-11:50 pm

2 stops16h 25m

$937

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 5/5

12:19 pm-7:40 am

1 stop13h 21m

London Heathrow

Tue 5/13

2:05 pm-12:12 pm

2 stops28h 07m

$940

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 45 results
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Antonio-London flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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?

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 April 25, 2025.

Booking 70 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 $1,110). 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?

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 April 30, 2025.

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?

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.

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

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

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

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 April 30, 2025.
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
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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
1,333 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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
1,275 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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
642 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

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

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?

    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, Lufthansa ($839), Scandinavian Airlines ($850), and Delta ($874) offers the cheapest pricing from San Antonio to London. These flights start at 11% 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 United Airlines. According to our data, you can fly for as low as $494. Users have also found prices from $521 and $554 on British Airways and Virgin Atlantic, 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 $1,110). 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

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Horley
Canterbury
Harrow
Wembley
Dover
Gatwick
Orpington
Watford
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Sutton
Chelmsford
Brentwood

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Antonio to London

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Top 6 airlines flying from San Antonio to London

Discover the top 6 airlines that operate flights from San Antonio to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$615Average$902FlexibilityNo cancel feeOn-time71%
IberiaCheapest$672Average$923FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$692Average$909FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$702Average$916FlexibilityNo cancel feeOn-time70%
DeltaCheapest$703Average$1,067FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$715Average$1,066FlexibilityNo cancel feeOn-time72%

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