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Cheap flights from San Antonio to London from £163

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

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 Monday and return on a Wednesday

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 5 December 2025.

Wed 3/1212:08SAT - LHR
1 stop16h 42mLufthansa
Wed 10/1209:30LHR - SAT
2 stops18h 02mLufthansa
Deal found 2/12£558
Wed 3/1215:00SAT - LHR
1 stop11h 35mBritish Airways
Wed 10/1210:15LHR - SAT
1 stop14h 41mBritish Airways
Deal found 2/12£593
Tue 30/1208:43SAT - LHR
1 stop18h 32mMultiple Airlines
Tue 24/306:00LHR - SAT
2 stops21h 54mMultiple Airlines
Deal found 4/12£598
Tue 30/1208:43SAT - LHR
1 stop18h 32mBritish Airways
Tue 24/309:55LHR - SAT
1 stop15h 01mBritish Airways
Deal found 4/12£603
Thu 4/1214:22SAT - LHR
1 stop11h 08mLufthansa
Mon 8/1219:30LHR - SAT
2 stops32h 02mLufthansa
Deal found 2/12£606
Sun 7/1214:22SAT - LHR
1 stop13h 53mLufthansa
Sun 14/1211:35LHR - SAT
1 stop15h 18mLufthansa
Deal found 3/12£607
Tue 16/1207:21SAT - LGW
2 stops18h 09mAmerican Airlines
Tue 31/310:40LGW - SAT
2 stops19h 13mAmerican Airlines
Deal found 4/12£612
Sat 27/1219:04SAT - LHR
1 stop30h 26mUnited Airlines
Thu 8/113:25LHR - SAT
2 stops39h 50mUnited Airlines
Deal found 3/12£614
Sun 7/1208:00SAT - LHR
1 stop17h 50mDelta
Sun 14/1206:30LHR - SAT
2 stops19h 53mDelta
Deal found 4/12£623
Sun 7/1213:34SAT - LHR
1 stop14h 06mUnited Airlines
Sun 14/1213:25LHR - SAT
2 stops31h 43mUnited Airlines
Deal found 3/12£629
Wed 3/1217:20SAT - LCY
2 stops17h 20mLufthansa
Wed 10/1218:10LCY - SAT
2 stops32h 05mLufthansa
Deal found 2/12£681
Wed 3/1212:55SAT - LGW
2 stops39h 55mIberia
Wed 10/1211:45LGW - SAT
2 stops26h 37mIberia
Deal found 2/12£783

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 5 December 2025.

Round-trip from

£380

One-way from

£163

Popular in

January

Cheapest in

August

Average price

£908
22/1-23/1
  • 22/1-23/1
  • 2 total stops
  • 37h 22m total
  • San Antonio to London
Search Deals
British Airways
  • British Airways
  • 5/4
  • 1 total stop
  • 13h 47m total
  • San Antonio to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£148 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£39 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 5 December 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 - LGW

SATLGW

San Antonio

Fri 23/1

06:30-10:00

1 stop21h 30m

London Gatwick

Sat 24/1

14:00-23:52

1 stop15h 52m

£381

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Thu 15/1

06:30-10:00

1 stop21h 30m

London Gatwick

Thu 22/1

14:00-23:52

1 stop15h 52m

£393

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Thu 22/1

06:30-10:00

1 stop21h 30m

London Gatwick

Sat 24/1

14:00-17:03

2 stops33h 03m

£426

San AntonioLondon

SAT - LGW

SATLGW

San Antonio

Mon 19/1

06:30-10:00

1 stop21h 30m

London Gatwick

Fri 30/1

14:00-23:52

1 stop15h 52m

£426

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Mon 9/2

13:40-21:35

3 stops25h 55m

London Heathrow

Tue 17/2

10:20-23:43

2 stops19h 23m

£447

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 11/2

13:40-07:50

1 stop12h 10m

London Heathrow

Wed 18/2

08:55-22:28

2 stops19h 33m

£448

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Sun 18/1

18:22-11:40

1 stop11h 18m

London Heathrow

Sun 25/1

11:45-22:55

2 stops17h 10m

£452

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Thu 29/1

06:30-07:50

1 stop19h 20m

London Heathrow

Wed 4/2

11:30-00:38

2 stops19h 08m

£467

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 9/1

12:25-06:50

1 stop12h 25m

London Heathrow

Fri 23/1

11:30-00:38

2 stops19h 08m

£467

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 15/4

14:10-10:50

2 stops14h 40m

London Heathrow

Tue 21/4

12:55-00:14

2 stops17h 19m

£468

Flights are sorted by cheapest return flights first.

Deals found on 4/12

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 28 November 2025.

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 £98). Flying from San Antonio to London in June is currently the most expensive (average of £631). 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 5 December 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 18% 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.

Houston (IAH) – chosen by Cheapflights users on 44% 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 £418.

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 15m.

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 22m.

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 5 December 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.
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Entertainment

7.5

Overall

7.5

Crew

8.2

Food

6.9

Comfort

7.3

Boarding

7.7

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
675 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Entertainment

7.5

Overall

7.5

Crew

8.2

Food

6.9

Comfort

7.3

Boarding

7.7

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 12h 10m. Fly via Scandinavian Airlines, Delta, 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 £98). Flying from San Antonio to London in June is currently the most expensive (average of £631). 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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