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Cheap flights from San Antonio to London from £175

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LON
12 Nov — 19 Nov1
1 adult
1 adult, Economy

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

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 13 October 2025.

Round-trip from

£433

One-way from

£175

Popular in

January

Cheapest in

August

Average price

£597
Scandinavian Airlines
  • Scandinavian Airlines
  • 2/2-6/2
  • 4 total stops
  • 42h 23m total
  • San Antonio to London
Search Deals
15/11
  • 15/11
  • 2 total stops
  • 33h 55m total
  • San Antonio to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£140 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 October 2025
Search Deals

Find 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 13 October 2025.

Tue 4/1112:23SAT - LHR
1 stop13h 27mAir France
Thu 20/1108:55LHR - SAT
1 stop14h 22mAir France
Deal found 13/10£437
Tue 4/1108:00SAT - LHR
1 stop17h 50mDelta
Thu 20/1106:20LHR - SAT
2 stops16h 58mDelta
Deal found 13/10£443
Thu 27/1114:46SAT - LHR
2 stops36h 34mScandinavian Airlines
Thu 4/1206:40LHR - SAT
2 stops22h 37mScandinavian Airlines
Deal found 13/10£455
Sat 8/1112:23SAT - LHR
2 stops24h 07mScandinavian Airlines
Sat 15/1106:40LHR - SAT
2 stops23h 28mScandinavian Airlines
Deal found 11/10£478
Thu 27/1119:37SAT - LGW
2 stops32h 23mMultiple Airlines
Thu 4/1214:00LGW - SAT
1 stop27h 50mMultiple Airlines
Deal found 13/10£499
Wed 19/1114:00SAT - LHR
1 stop15h 25mDelta
Sun 7/1206:30LHR - SAT
2 stops19h 53mDelta
Deal found 13/10£501
Fri 7/1110:54SAT - LHR
1 stop13h 31mDelta
Thu 20/1111:45LHR - SAT
2 stops17h 12mDelta
Deal found 10/10£502
Fri 28/1106:30SAT - LHR
2 stops18h 35mDelta
Sat 13/1206:30LHR - SAT
2 stops18h 02mDelta
Deal found 13/10£505
Sat 8/1110:54SAT - LHR
1 stop16h 06mDelta
Sat 15/1111:30LHR - SAT
2 stops18h 38mDelta
Deal found 11/10£506
Wed 26/1113:05SAT - LHR
2 stops13h 55mDelta
Wed 3/1206:30LHR - SAT
2 stops17h 56mDelta
Deal found 12/10£509
Thu 27/1112:10SAT - LHR
1 stop12h 10mDelta
Sun 21/1210:45LHR - SAT
1 stop19h 57mDelta
Deal found 13/10£510
Tue 11/1113:05SAT - LHR
1 stop12h 45mKLM
Tue 18/1112:30LHR - SAT
1 stop14h 32mKLM
Deal found 12/10£516

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 13 October 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 2/2

16:10-17:40

2 stops19h 30m

London Heathrow

Fri 6/2

07:05-23:33

3 stops22h 28m

£475

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 11/11

08:00-09:00

1 stop19h 00m

London Heathrow

Tue 18/11

06:30-18:16

2 stops17h 46m

£501

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 5/12

12:10-10:15

1 stop16h 05m

London Heathrow

Tue 16/12

08:40-21:03

2 stops18h 23m

£501

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Wed 19/11

14:00-11:25

1 stop15h 25m

London Heathrow

Wed 3/12

08:40-21:19

2 stops18h 39m

£501

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Fri 7/11

10:54-06:25

1 stop13h 31m

London Heathrow

Thu 20/11

11:45-22:57

2 stops17h 12m

£502

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Thu 15/1

16:25-11:40

1 stop13h 15m

London Heathrow

Mon 19/1

06:30-23:33

2 stops23h 03m

£507

San AntonioLondon

SAT - LHR

SATLHR

San Antonio

Tue 11/11

13:05-07:50

1 stop12h 45m

London Heathrow

Tue 18/11

12:30-21:02

1 stop14h 32m

£516

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Tue 25/11

12:50-12:50

2 stops18h 00m

London City

Thu 4/12

19:10-20:15

2 stops31h 05m

£563

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Sun 23/11

12:50-12:50

2 stops18h 00m

London City

Tue 2/12

19:10-20:15

2 stops31h 05m

£563

San AntonioLondon

SAT - LCY

SATLCY

San Antonio

Wed 19/11

16:24-16:40

2 stops18h 16m

London City

Wed 26/11

19:10-20:15

2 stops31h 05m

£571

Flights are sorted by cheapest return flights first.

Deals found on 12/10

Showing 1-10 of 57 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 10 October 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 £664). 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 13 October 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 46% 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 £397.

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 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 13 October 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
7.4
Good
667 reviews
Check prices

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

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
7.4
Good
667 reviews
Virgin Atlantic
7.4
Good
667 reviews
Check prices

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

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 19h. Fly via Scandinavian Airlines or Delta 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 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 £257. Users have also found prices from £406 and £479 on United Airlines and Lufthansa, respectively.

  • 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 £664). 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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