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Cheap flights from Louisville 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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LON
19 Feb — 26 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Louisville to London

Enter your travel dates to find the best prices.

Cheapest flights from Louisville to London
Explore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 January 2026.

Wed 4/316:59
SDF
-
LHR
1 stop14h 01m
British Airways
Wed 11/306:15
LHR
-
SDF
2 stops19h 11m
British Airways
Deal found 18/1£431
Mon 16/206:10
SDF
-
LHR
1 stop19h 45m
British Airways
Mon 23/216:30
LHR
-
SDF
2 stops33h 41m
British Airways
Deal found 17/1£439
Wed 8/412:15
SDF
-
LHR
1 stop18h 00m
British Airways
Mon 13/419:25
LHR
-
SDF
2 stops31h 03m
British Airways
Deal found 20/1£441
Mon 17/818:11
SDF
-
LHR
1 stop11h 19m
Iberia
Tue 25/820:50
LHR
-
SDF
2 stops31h 11m
Iberia
Deal found 19/1£443
Tue 17/214:11
SDF
-
LHR
1 stop14h 49m
Finnair
Tue 24/208:20
LHR
-
SDF
1 stop16h 54m
Finnair
Deal found 18/1£446
Wed 18/214:01
SDF
-
LHR
1 stop14h 59m
Finnair
Tue 31/308:55
LHR
-
SDF
1 stop16h 19m
Finnair
Deal found 19/1£447
Sun 19/419:05
SDF
-
LHR
1 stop10h 25m
British Airways
Mon 27/420:00
LHR
-
SDF
2 stops30h 20m
British Airways
Deal found 19/1£448
Thu 26/207:40
SDF
-
LHR
1 stop18h 10m
British Airways
Tue 3/306:05
LHR
-
SDF
2 stops21h 58m
British Airways
Deal found 17/1£450
Wed 18/218:12
SDF
-
LHR
1 stop11h 13m
British Airways
Wed 25/215:45
LHR
-
SDF
1 stop12h 31m
British Airways
Deal found 19/1£450
Tue 3/211:14
SDF
-
LHR
1 stop15h 06m
British Airways
Mon 9/219:05
LHR
-
SDF
2 stops33h 14m
British Airways
Deal found 17/1£456
Fri 6/305:00
SDF
-
LGW
2 stops21h 30m
American Airlines
Fri 13/311:20
LGW
-
SDF
2 stops27h 38m
American Airlines
Deal found 20/1£464
Tue 17/214:35
SDF
-
LCY
2 stops13h 40m
Lufthansa
Tue 24/209:50
LCY
-
SDF
2 stops15h 06m
Lufthansa
Deal found 18/1£485

Find flight deals from Louisville to London

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) 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 20 January 2026.

Round-trip from

£431

One-way from

£151

Popular in

June

Cheapest in

October

Average price

£583
British Airways
  • British Airways
  • 4/3-11/3
  • 3 total stops
  • 33h 12m total
  • Louisville to London
Search Deals
25/3
  • 25/3
  • 1 total stop
  • 17h 57m total
  • Louisville to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£132 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 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 Louisville 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 20 January 2026.
Use the filters below to find and compare flights from Louisville to London that are best for you.

Fly from

Louisville

Fly to

London

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/2

14:01-10:00

1 stop14h 59m

London Heathrow

Tue 31/3

08:55-20:14

1 stop16h 19m

£447

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 20/4

16:33-08:00

1 stop10h 27m

London Heathrow

Thu 30/4

16:25-10:16

1 stop22h 51m

£462

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 17/2

09:00-05:55

1 stop15h 55m

London Heathrow

Tue 24/2

06:50-20:09

2 stops18h 19m

£469

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/3

10:45-09:20

2 stops17h 35m

London Heathrow

Wed 11/3

06:50-20:14

2 stops17h 24m

£469

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 3/2

18:12-11:15

1 stop12h 03m

London Heathrow

Mon 9/2

12:05-20:28

2 stops37h 23m

£470

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 17/2

06:15-20:35

2 stops33h 20m

London Heathrow

Tue 24/2

09:30-19:56

2 stops15h 26m

£470

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/2

10:45-07:10

2 stops15h 25m

London Heathrow

Wed 25/2

06:50-19:42

2 stops17h 52m

£472

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Thu 5/3

09:55-05:55

2 stops15h 00m

London Heathrow

Thu 12/3

06:50-19:31

2 stops16h 41m

£473

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 6/3

07:05-11:20

2 stops23h 15m

London Heathrow

Fri 13/3

06:50-19:31

2 stops16h 41m

£475

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Thu 26/2

14:35-09:20

2 stops13h 45m

London City

Tue 3/3

09:50-23:59

2 stops19h 09m

£485

Flights are sorted by cheapest return flights first.

Deals found on 18/1

Showing 1-10 of 56 results
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Best time to book a flight from Louisville to London

Have a flexible travel schedule? Discover the best time to fly to London from Louisville 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 Louisville to London

How far ahead should I book a flight from Louisville to London?

Use this chart to determine the optimal time to book a return flight from Louisville to London. Price data was last updated on 16 January 2026.

Booking 10 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Louisville to London?

Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of £386). Flying from Louisville to London in June is currently the most expensive (average of £684). 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 Louisville to London?

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

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

Chicago (ORD) – chosen by Cheapflights users on 60% of one-stop itineraries from Louisville to London on Cheapflights.

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

Average return fare for one-stop flights from Louisville 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 £438.

What’s the fastest stopover option from Louisville to London?

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

Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 10h 39m.

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

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

Flights via Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 1h 53m.

Related info for your journey

Find useful and relevant information for your journey from Louisville 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 Louisville to London?

    For a flight from Louisville to London, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Louisville Intl on a regular basis.

  • How long is the flight from Louisville to London?

    Departing from Louisville to London will take you 10h 27m. Airlines will cover a distance of 4033 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Louisville to London?

    The most popular route from Louisville to London is Louisville Intl - London Heathrow. You may also consider Louisville Intl - London Gatwick or Louisville Intl - London City.

  • Can I find deals for flights from Louisville to London that include hotel bookings?

    Yes. In addition to deals on Louisville to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Louisville to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to London.

  • Can I find deals for business class flights from Louisville to London?

    Yes. Cheapflights offers flight deals from Louisville 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 Louisville to London?

    Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of £386). Flying from Louisville to London in June is currently the most expensive (average of £684). 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?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Luton
Croydon
Wembley
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Colchester
Watford
Crawley
Bedford
Kingston upon Thames
Chelmsford
Eastbourne
Romford
Folkestone
Southend-on-Sea

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Louisville to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Louisville to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Louisville to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Louisville to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Louisville to London with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Louisville to London flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Louisville to London become cheaper?

Yes! Start tracking prices for Louisville to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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