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Cheap flights from San Antonio to London from £151

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
5 Mar — 12 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Antonio to London

Enter your travel dates to find the best prices.

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 3 February 2026.

Tue 3/312:45
SAT
-
LHR
2 stops18h 15m
Lufthansa
Tue 10/306:30
LHR
-
SAT
2 stops22h 02m
Lufthansa
Deal found 3/2£454
Tue 3/317:25
SAT
-
LHR
1 stop11h 50m
United Airlines
Tue 10/306:50
LHR
-
SAT
2 stops19h 03m
United Airlines
Deal found 3/2£463
Mon 2/307:00
SAT
-
LHR
2 stops17h 20m
United Airlines
Mon 9/306:50
LHR
-
SAT
2 stops19h 03m
United Airlines
Deal found 1/2£464
Wed 18/316:10
SAT
-
LHR
2 stops13h 40m
United Airlines
Wed 25/306:35
LHR
-
SAT
2 stops19h 18m
United Airlines
Deal found 3/2£466
Fri 20/314:20
SAT
-
LHR
1 stop12h 10m
United Airlines
Mon 23/316:40
LHR
-
SAT
2 stops33h 13m
United Airlines
Deal found 3/2£471
Wed 19/807:30
SAT
-
LHR
2 stops18h 10m
Lufthansa
Thu 3/907:25
LHR
-
SAT
2 stops21h 43m
Lufthansa
Deal found 2/2£473
Thu 19/312:22
SAT
-
LHR
1 stop13h 28m
Air France
Thu 26/311:20
LHR
-
SAT
1 stop17h 09m
Air France
Deal found 2/2£473
Wed 1/412:22
SAT
-
LHR
1 stop16h 18m
Delta
Wed 8/408:40
LHR
-
SAT
2 stops19h 07m
Delta
Deal found 3/2£475
Tue 12/507:55
SAT
-
LHR
2 stops17h 15m
Delta
Wed 20/506:30
LHR
-
SAT
2 stops16h 50m
Delta
Deal found 3/2£478
Mon 2/313:52
SAT
-
LGW
1 stop14h 08m
Multiple Airlines
Mon 9/314:00
LGW
-
SAT
2 stops48h 30m
Multiple Airlines
Deal found 1/2£482
Thu 12/206:00
SAT
-
LGW
1 stop22h 00m
Multiple Airlines
Thu 19/214:00
LGW
-
SAT
1 stop15h 59m
Multiple Airlines
Deal found 2/2£497
Mon 2/314:10
SAT
-
LCY
2 stops21h 30m
Lufthansa
Mon 9/309:50
LCY
-
SAT
2 stops18h 07m
Lufthansa
Deal found 1/2£547

Find 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 3 February 2026.

Round-trip from

£454

One-way from

£151

Popular in

January

Cheapest in

September

Average price

£532
Lufthansa
  • Lufthansa
  • 3/3-10/3
  • 4 total stops
  • 40h 17m total
  • San Antonio to London
Search Deals
23/3
  • 23/3
  • 1 total stop
  • 15h 38m total
  • San Antonio to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£123 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£38 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 3 February 2026.
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 18/3

07:00-07:55

1 stop19h 55m

London Heathrow

Wed 25/3

06:35-20:53

2 stops19h 18m

£463

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 3/3

17:25-11:15

1 stop11h 50m

London Heathrow

Tue 10/3

06:50-20:53

2 stops19h 03m

£463

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 2/3

07:00-06:20

2 stops17h 20m

London Heathrow

Mon 9/3

06:50-20:53

2 stops19h 03m

£464

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 1/4

12:22-10:40

1 stop16h 18m

London Heathrow

Wed 8/4

08:40-21:47

2 stops19h 07m

£475

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 12/5

13:05-09:15

1 stop14h 10m

London Heathrow

Wed 20/5

06:30-17:20

2 stops16h 50m

£475

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Mon 2/3

13:52-10:00

1 stop14h 08m

London Gatwick

Mon 9/3

14:00-09:30

2 stops48h 30m

£482

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Mon 2/3

14:10-17:40

2 stops21h 30m

London City

Mon 9/3

09:50-22:57

2 stops18h 07m

£547

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Mon 13/4

16:17-17:55

2 stops19h 38m

London City

Tue 5/5

09:15-22:54

2 stops19h 39m

£625

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Sun 1/3

10:14-08:50

2 stops16h 36m

London City

Wed 18/3

07:50-23:56

2 stops21h 06m

£645

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Sun 15/2

06:00-10:55

2 stops22h 55m

London Gatwick

Mon 23/2

14:00-23:59

1 stop15h 59m

£649

Flights are sorted by cheapest return flights first.

Deals found on 2/2

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 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 30 January 2026.

The best time to book flights from San Antonio to London is 34 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, August is the cheapest month in which you can book a flight from San Antonio to London (average of £96). Flying from San Antonio to London in June is currently the most expensive (average of £613). 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.

How much does it cost for a return flight from San Antonio to London?

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 40% 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.

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of £407.

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 18m.

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 07m.

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 3 February 2026.
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.
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Boarding

7.7

Food

6.9

Comfort

7.3

Entertainment

7.6

Crew

8.2

Overall

7.5

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!
Virgin Atlantic
7.5
Good
678 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Boarding

7.7

Food

6.9

Comfort

7.3

Entertainment

7.6

Crew

8.2

Overall

7.5

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 11h 50m. Fly via United Airlines, 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?

    The most popular flight routes from San Antonio to London are San Antonio - London Heathrow, San Antonio - London Gatwick and San Antonio - London City.

  • 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, August is the cheapest month in which you can book a flight from San Antonio to London (average of £96). Flying from San Antonio to London in June is currently the most expensive (average of £613). 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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