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$250+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
Aug 12 — Aug 191
Tue 8/12
Tue 8/19
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to London are usually found in February or August, booked 32 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 August 7, 2025.

Round-trip from

$480
(World Air Fares)

One-way from

$338
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$743
From San Antonio to London (LON)
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One-way flight from San Antonio to London (LON)
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Highest demand for flights based on searches. 13% potential increase in price ($144 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 7, 2025.

This Netflights deal was found by Cheapflights users on 8/7. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:04 pmSAT - LHR
1 stop13h 06mVirgin Atlantic
Wed 8/2711:45 amLHR - SAT
1 stop17h 49mVirgin Atlantic
Deal found 8/7$496
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Tue 9/22:25 pmSAT - LHR
1 stop15h 10mUnited Airlines
Tue 9/99:30 amLHR - SAT
2 stops32h 31mUnited Airlines
Deal found 8/7$505
This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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.
Wed 9/246:49 pmSAT - LHR
1 stop11h 56mBritish Airways
Tue 9/308:20 amLHR - SAT
1 stop14h 22mBritish Airways
Deal found 8/6$507
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sat 10/257:38 pmSAT - LHR
1 stop33h 37mUnited Airlines
Tue 11/41:25 pmLHR - SAT
2 stops39h 51mUnited Airlines
Deal found 8/5$510
This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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.
Wed 11/196:05 pmSAT - LHR
1 stop12h 10mBritish Airways
Wed 12/38:20 amLHR - SAT
1 stop15h 22mBritish Airways
Deal found 8/6$511
This United Airlines deal was found by Cheapflights users on 8/5. 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 10/155:30 amSAT - LHR
1 stop24h 05mUnited Airlines
Fri 10/244:00 pmLHR - SAT
2 stops25h 58mUnited Airlines
Deal found 8/5$513
This Cheapflightsfares deal was found by Cheapflights users on 8/5. 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 9/26:45 pmSAT - LHR
1 stop13h 40mBritish Airways
Tue 9/98:20 amLHR - SAT
1 stop14h 22mBritish Airways
Deal found 8/5$518
This Delta deal was found by Cheapflights users on 8/7. 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.
Sun 8/178:00 amSAT - LHR
1 stop16h 45mDelta
Fri 8/2911:30 amLHR - SAT
2 stops18h 27mDelta
Deal found 8/7$521
This Delta deal was found by Cheapflights users on 8/7. 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.
Tue 10/211:50 pmSAT - LHR
1 stop12h 15mDelta
Tue 10/2811:45 amLHR - SAT
2 stops15h 57mDelta
Deal found 8/7$522
This Ovago deal was found by Cheapflights users on 8/7. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:24 pmSAT - LHR
1 stop11h 51mBritish Airways
Tue 10/288:20 amLHR - SAT
1 stop14h 25mBritish Airways
Deal found 8/7$523
This oojo deal was found by Cheapflights users on 8/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/12:25 pmSAT - LHR
1 stop15h 10mUnited Airlines
Tue 9/92:10 pmLHR - SAT
1 stop14h 48mUnited Airlines
Deal found 8/6$524
This Delta deal was found by Cheapflights users on 8/7. 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 9/2411:26 amSAT - LHR
2 stops16h 49mDelta
Wed 10/811:30 amLHR - SAT
2 stops18h 50mDelta
Deal found 8/7$525

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 August 7, 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 - LHR

SATLHR

San Antonio

Wed 9/10

4:22 pm-11:35 am

1 stop13h 13m

London Heathrow

Wed 9/17

2:10 pm-10:58 pm

1 stop14h 48m

$480

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 9/10

5:16 pm-2:25 pm

1 stop15h 09m

London Heathrow

Wed 9/17

7:30 pm-5:49 pm

2 stops28h 19m

$495

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 11/19

11:40 am-7:30 am

1 stop13h 50m

London Heathrow

Wed 12/3

1:25 pm-11:00 pm

2 stops39h 35m

$505

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 10/1

4:49 pm-12:30 pm

1 stop13h 41m

London Heathrow

Wed 10/8

8:20 am-3:47 pm

1 stop13h 27m

$507

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sat 10/25

7:38 pm-11:15 am

1 stop33h 37m

London Heathrow

Tue 11/4

1:25 pm-11:16 pm

2 stops39h 51m

$510

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 11/19

6:05 pm-12:15 pm

1 stop12h 10m

London Heathrow

Wed 12/3

8:20 am-5:42 pm

1 stop15h 22m

$511

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 9/3

7:10 am-7:40 am

1 stop18h 30m

London Heathrow

Wed 9/10

7:25 am-8:33 pm

2 stops19h 08m

$513

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 9/9

9:50 am-7:40 am

1 stop15h 50m

London Heathrow

Tue 9/16

7:25 am-7:52 pm

2 stops18h 27m

$514

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 9/2

6:45 pm-2:25 pm

1 stop13h 40m

London Heathrow

Tue 9/9

8:20 am-4:42 pm

1 stop14h 22m

$518

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 10/1

6:00 am-6:30 am

2 stops18h 30m

London Heathrow

Wed 10/8

9:30 am-10:35 pm

2 stops19h 05m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 51 results
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6

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 August 1, 2025.

Booking 32 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 $1,097). 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 August 7, 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.

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 August 7, 2025.
See what other customers who have flown with Delta, United Airlines, and Virgin Atlantic from San Antonio to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,987 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8,916 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
657 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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
3,934 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,987 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

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

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 ($480), British Airways ($495), and United Airlines ($505) 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 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 $1,097). 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 London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Orpington
Dartford
Watford
Gatwick
Borehamwood
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Arundel
Milton Keynes
Eastbourne
Sutton

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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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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 August 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$649Average$1,070FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$662Average$891FlexibilityNo cancel feeOn-time71%
IberiaCheapest$668Average$943FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$688Average$1,207FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$689Average$914FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$701Average$989FlexibilityNo cancel feeOn-time69%

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