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Cheap flights from San Antonio to London from £155

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 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
24 Feb — 3 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 25 January 2026.

Mon 5/1012:50
SAT
-
LHR
2 stops17h 00m
Multiple Airlines
Wed 7/1006:00
LHR
-
SAT
2 stops21h 00m
Multiple Airlines
Deal found 23/1£408
Mon 5/1010:00
SAT
-
LHR
3 stops18h 00m
Air Canada
Wed 7/1006:00
LHR
-
SAT
2 stops21h 00m
Air Canada
Deal found 23/1£410
Mon 2/313:40
SAT
-
LHR
1 stop14h 20m
Iberia
Thu 12/306:15
LHR
-
SAT
2 stops22h 41m
Iberia
Deal found 22/1£426
Mon 2/306:00
SAT
-
LGW
1 stop22h 00m
Multiple Airlines
Fri 6/314:00
LGW
-
SAT
1 stop15h 59m
Multiple Airlines
Deal found 23/1£439
Tue 8/916:45
SAT
-
LHR
1 stop13h 35m
United Airlines
Tue 15/914:05
LHR
-
SAT
2 stops31h 33m
United Airlines
Deal found 22/1£443
Wed 25/217:25
SAT
-
LHR
2 stops16h 25m
Lufthansa
Wed 4/311:10
LHR
-
SAT
2 stops18h 02m
Lufthansa
Deal found 24/1£446
Tue 31/313:22
SAT
-
LGW
1 stop14h 38m
Multiple Airlines
Fri 10/414:00
LGW
-
SAT
1 stop28h 27m
Multiple Airlines
Deal found 23/1£453
Mon 23/217:25
SAT
-
LHR
2 stops16h 25m
Lufthansa
Mon 2/306:30
LHR
-
SAT
2 stops19h 58m
Lufthansa
Deal found 24/1£454
Tue 14/417:30
SAT
-
LHR
2 stops16h 10m
Lufthansa
Tue 21/409:00
LHR
-
SAT
2 stops19h 53m
Lufthansa
Deal found 24/1£456
Tue 8/920:36
SAT
-
LHR
1 stop11h 49m
American Airlines
Tue 15/908:55
LHR
-
SAT
1 stop12h 52m
American Airlines
Deal found 22/1£458
Tue 10/317:30
SAT
-
LHR
1 stop13h 10m
KLM
Tue 17/310:00
LHR
-
SAT
2 stops30h 30m
KLM
Deal found 24/1£459
Mon 2/315:08
SAT
-
LHR
1 stop15h 07m
British Airways
Wed 11/306:15
LHR
-
SAT
2 stops17h 55m
British Airways
Deal found 24/1£461

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 25 January 2026.

Round-trip from

£426

One-way from

£155

Popular in

January

Cheapest in

September

Average price

£1,245
Iberia
  • Iberia
  • 2/3-12/3
  • 3 total stops
  • 37h 01m total
  • San Antonio to London
Search Deals
26/3
  • 26/3
  • 1 total stop
  • 15h 38m total
  • San Antonio to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£122 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 January 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 25 January 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 - LGW

SATLGW

San Antonio

Mon 2/3

06:00-10:00

1 stop22h 00m

London Gatwick

Fri 6/3

14:00-23:59

1 stop15h 59m

£439

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 2/3

14:10-10:15

1 stop14h 05m

London Heathrow

Thu 12/3

10:00-19:48

1 stop14h 48m

£446

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 23/2

17:25-15:50

2 stops16h 25m

London Heathrow

Mon 2/3

06:30-20:28

2 stops19h 58m

£454

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 6/3

07:30-09:20

2 stops19h 50m

London Heathrow

Thu 12/3

06:35-20:53

2 stops19h 18m

£462

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 23/2

14:10-10:15

1 stop14h 05m

London Heathrow

Mon 2/3

07:40-20:28

2 stops18h 48m

£462

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Mon 23/2

06:00-10:00

1 stop22h 00m

London Gatwick

Mon 2/3

14:00-23:59

1 stop15h 59m

£473

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 1/4

13:37-06:45

1 stop11h 08m

London Heathrow

Wed 8/4

08:40-22:42

2 stops20h 02m

£473

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 12/5

14:00-10:40

1 stop14h 40m

London Heathrow

Wed 20/5

08:40-21:28

2 stops18h 48m

£473

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 19/4

17:30-11:45

1 stop12h 15m

London Heathrow

Thu 30/4

14:05-16:19

2 stops32h 14m

£480

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 23/2

16:47-11:40

1 stop12h 53m

London Heathrow

Mon 2/3

14:45-22:55

1 stop14h 10m

£481

Flights are sorted by cheapest return flights first.

Deals found on 23/1

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 23 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.

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 £408.

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 25 January 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

Comfort

7.3

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.6

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

Comfort

7.3

Food

6.9

Overall

7.5

Crew

8.2

Entertainment

7.6

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 14h 05m. Fly via United Airlines, Lufthansa, or Iberia 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

Travelling to a place near London?

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Southend-on-Sea

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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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How does Cheapflights help users find flights from San Antonio to London?

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Yes! Cheapflights helps users easily find flights from San Antonio to London with no change fees.

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