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$330+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to London are usually found in August or September, booked 34 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 September 16, 2025.

Round-trip from

$509
(Air Canada)

One-way from

$330
(Norse)

Popular in

January

Cheapest in

August

Average price

$739
From San Antonio to London (LON)
Search Deals
One-way flight from San Antonio to London (LON)
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Highest demand for flights based on searches. 19% potential increase in price ($234 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($69 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:45 amSAT - LHR
2 stops17h 45mAir Canada
Tue 10/212:05 pmLHR - SAT
2 stops31h 28mAir Canada
Deal found 9/15$509
This United Airlines deal was found by Cheapflights users on 9/16. 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 11/1911:40 amSAT - LHR
2 stops17h 10mUnited Airlines
Wed 12/31:25 pmLHR - SAT
2 stops31h 43mUnited Airlines
Deal found 9/16$514
This Air Canada deal was found by Cheapflights users on 9/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:38 pmSAT - LHR
2 stops28h 52mAir Canada
Tue 10/212:05 pmLHR - SAT
2 stops27h 53mAir Canada
Deal found 9/16$515
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:45 amSAT - LHR
2 stops17h 45mAir Canada
Fri 10/244:00 pmLHR - SAT
2 stops29h 25mAir Canada
Deal found 9/15$516
This eDestinos deal was found by Cheapflights users on 9/15. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/43:00 pmSAT - LHR
1 stop11h 35mIberia
Thu 11/202:10 pmLHR - SAT
1 stop13h 39mIberia
Deal found 9/15$519
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:38 pmSAT - LHR
2 stops28h 52mAir Canada
Fri 10/244:00 pmLHR - SAT
2 stops29h 25mAir Canada
Deal found 9/15$521
This Delta deal was found by Cheapflights users on 9/16. 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 10/86:41 amSAT - LHR
1 stop18h 04mDelta
Wed 10/2211:30 amLHR - SAT
2 stops18h 50mDelta
Deal found 9/16$524
This Delta deal was found by Cheapflights users on 9/16. 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 10/712:02 pmSAT - LHR
1 stop13h 13mDelta
Tue 10/2111:30 amLHR - SAT
2 stops17h 12mDelta
Deal found 9/16$525
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/42:14 pmSAT - LHR
2 stops14h 51mUnited Airlines
Thu 11/2012:00 pmLHR - SAT
2 stops16h 56mUnited Airlines
Deal found 9/15$526
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 10/86:40 pmSAT - LHR
1 stop13h 45mIberia
Wed 10/2210:30 amLHR - SAT
1 stop15h 13mIberia
Deal found 9/15$527
This Delta deal was found by Cheapflights users on 9/15. 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 10/111:26 amSAT - LHR
2 stops15h 24mDelta
Wed 10/811:30 amLHR - SAT
2 stops18h 50mDelta
Deal found 9/15$528
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 11/42:14 pmSAT - LCY
2 stops20h 26mLufthansa
Thu 11/209:40 amLCY - SAT
2 stops18h 47mLufthansa
Deal found 9/14$605

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 September 16, 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

Mon 1/12

11:43 am-10:25 am

2 stops16h 42m

London Heathrow

Tue 1/20

6:50 am-8:56 pm

2 stops20h 06m

$526

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 2/18

2:10 pm-7:30 am

1 stop11h 20m

London Heathrow

Mon 2/23

1:50 pm-8:53 pm

2 stops37h 03m

$527

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 10/7

12:23 pm-6:45 am

1 stop12h 22m

London Heathrow

Thu 10/23

3:15 pm-12:20 am

1 stop15h 05m

$532

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 11/3

11:35 am-8:45 am

1 stop15h 10m

London Heathrow

Thu 11/13

3:50 pm-12:33 am

1 stop14h 43m

$532

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 10/8

11:55 am-6:55 am

1 stop13h 00m

London Heathrow

Tue 10/21

9:30 am-10:35 pm

2 stops19h 05m

$532

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 10/5

4:21 pm-11:35 am

1 stop13h 14m

London Heathrow

Tue 10/21

9:30 am-10:35 pm

2 stops19h 05m

$532

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 11/3

4:24 pm-10:15 am

1 stop11h 51m

London Heathrow

Tue 11/11

12:05 pm-7:37 pm

1 stop13h 32m

$532

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 10/6

2:25 pm-7:40 am

1 stop11h 15m

London Heathrow

Thu 10/23

1:40 pm-9:29 pm

1 stop13h 49m

$532

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Wed 2/11

2:36 pm-2:05 pm

2 stops17h 29m

London City

Wed 2/18

7:50 am-8:00 pm

2 stops18h 10m

$549

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 11/9

9:45 am-10:15 am

1 stop18h 30m

London Heathrow

Mon 11/17

1:25 pm-3:18 pm

2 stops31h 53m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
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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 September 12, 2025.

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 $1,097). 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 September 16, 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.

How much does it cost to fly round-trip from San Antonio to London?

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 September 16, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines 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
7,957 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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
7,957 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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!
Iberia
7.0
Good
2,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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!
British Airways
6.7
Okay
7,363 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

8.0

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.

  • How long is the flight from San Antonio to London?

    There are many flights that can get you from San Antonio to London in 12h 22m. Fly via United Airlines, KLM, or Iberia to get the fastest option. The distance from San Antonio to London is about 4967 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Delta ($530), British Airways ($570), and American Airlines ($571) offers the cheapest pricing from San Antonio to London. These flights start at 44% 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 Scandinavian Airlines. According to our data, you can fly for as low as $350. Users have also found prices from $480 and $489 on United Airlines and Iberia, 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 $1,097). 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
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Wembley
Folkestone
Chichester
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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$530Average$1,032FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$570Average$912FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$571Average$845FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$580Average$939FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$645Average$1,077FlexibilityNo cancel feeOn-time72%
IberiaCheapest$672Average$1,070FlexibilityNo cancel feeOn-time77%

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