Cheap flights from San Antonio to London from £166

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
7 Sep — 14 Sep1
1 adult

Cheapflights Tip: The best prices from San Antonio to London are usually found in August or February, booked 32 days in advance, depart on a Wednesday or Monday 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 2 September 2025.

Round-trip from

£378

One-way from

£166

Popular in

January

Cheapest in

August

Average price

£579
Iberia
  • Iberia
  • 11/2-18/2
  • 3 total stops
  • 32h 11m total
  • San Antonio to London
3/10
  • 3/10
  • 2 total stops
  • 30h 40m total
  • San Antonio to London
Highest demand for flights based on searches. 15% potential increase in price (£94 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in September 2025

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 2 September 2025.

Wed 10/911:25SAT - LGW
2 stops17h 15mAmerican Airlines
Wed 17/912:20LGW - SAT
2 stops16h 40mAmerican Airlines
Deal found 2/9£365
Tue 4/1112:55SAT - LHR
1 stop11h 55mIberia
Thu 20/1114:10LHR - SAT
1 stop13h 47mIberia
Deal found 2/9£383
Mon 22/906:35SAT - LHR
1 stop18h 40mDelta
Fri 3/1011:30LHR - SAT
2 stops16h 49mDelta
Deal found 2/9£387
Wed 24/912:15SAT - LHR
1 stop19h 15mDelta
Tue 30/911:45LHR - SAT
2 stops18h 14mDelta
Deal found 2/9£388
Tue 11/1112:55SAT - LHR
1 stop11h 55mBritish Airways
Thu 20/1108:20LHR - SAT
1 stop13h 17mBritish Airways
Deal found 1/9£392
Wed 24/909:21SAT - LHR
1 stop16h 19mBritish Airways
Tue 30/909:15LHR - SAT
1 stop18h 07mBritish Airways
Deal found 2/9£392
Sat 15/1118:05SAT - LHR
1 stop30h 45mBritish Airways
Tue 25/1109:55LHR - SAT
1 stop18h 49mBritish Airways
Deal found 1/9£396
Tue 11/1110:33SAT - LHR
2 stops16h 42mIberia
Thu 20/1114:10LHR - SAT
1 stop13h 47mIberia
Deal found 1/9£403
Fri 17/1018:21SAT - LHR
1 stop13h 09mVirgin Atlantic
Fri 24/1009:55LHR - SAT
1 stop19h 51mVirgin Atlantic
Deal found 2/9£405
Fri 12/913:44SAT - LHR
1 stop15h 06mIberia
Wed 24/911:30LHR - SAT
2 stops17h 30mIberia
Deal found 2/9£415
Tue 11/1110:33SAT - LHR
2 stops16h 42mIberia
Fri 21/1119:40LHR - SAT
2 stops18h 44mIberia
Deal found 1/9£424
Fri 17/1005:14SAT - LHR
1 stop19h 31mDelta
Fri 24/1009:55LHR - SAT
2 stops16h 33mDelta
Deal found 2/9£425

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 2 September 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 11/2

14:36-10:00

1 stop13h 24m

London Heathrow

Wed 18/2

19:40-08:27

2 stops18h 47m

£378

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 4/11

12:55-06:50

1 stop11h 55m

London Heathrow

Thu 20/11

14:10-21:57

1 stop13h 47m

£383

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 22/9

06:35-07:15

1 stop18h 40m

London Heathrow

Fri 3/10

11:30-22:19

2 stops16h 49m

£387

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 4/11

12:02-06:20

1 stop12h 18m

London Heathrow

Thu 20/11

06:20-17:20

2 stops17h 00m

£387

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 24/9

12:15-13:30

1 stop19h 15m

London Heathrow

Tue 30/9

11:45-23:59

2 stops18h 14m

£388

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 19/11

13:40-07:20

1 stop11h 40m

London Heathrow

Wed 3/12

14:10-22:00

1 stop13h 50m

£391

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 26/10

18:39-12:15

1 stop12h 36m

London Heathrow

Wed 5/11

10:05-18:58

1 stop14h 53m

£391

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 22/9

17:16-10:50

1 stop11h 34m

London Heathrow

Fri 3/10

12:00-23:00

1 stop17h 00m

£392

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 11/2

14:08-08:35

1 stop12h 27m

London Heathrow

Wed 18/2

08:20-16:41

1 stop14h 21m

£392

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 30/9

12:44-06:25

1 stop11h 41m

London Heathrow

Tue 7/10

08:20-19:43

1 stop17h 23m

£392

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 59 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 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?

Use this chart to determine the optimal time to book a return flight from San Antonio to London. Price data was last updated on 29 August 2025.

The best time to book flights from San Antonio to London is 32 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?

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 2 September 2025.

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.

What’s the top stopover airport for flights from San Antonio to London?

Share of one-stop return flights from San Antonio to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Dallas (DFW) – chosen by Cheapflights users on 52% of one-stop itineraries from San Antonio to London on Cheapflights.

What’s the cheapest stopover airport for flights from San Antonio to London?

Average return fare for one-stop flights from San Antonio to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £392.

What’s the fastest stopover option from San Antonio to London?

Shortest average travel time for one-stop one-way flights from San Antonio to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Houston (IAH) have the shortest average one-way travel time for one-stop routes: 11h 13m.

Which airport typically offers the quickest stopover for flights from San Antonio to London?

Average stopover duration for one-stop one-way flights from San Antonio to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 1h 23m.

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 2 September 2025.
Read reviews from past customers who have flown with Virgin Atlantic 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.

Crew

8.1

Entertainment

7.5

Overall

7.4

Food

6.9

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Crew

8.1

Entertainment

7.5

Overall

7.4

Food

6.9

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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 0 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 13h 24m. Fly via Iberia, Delta, or Lufthansa to get the fastest option. San Antonio and London are separated by a distance of 4967 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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?

    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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