What is the cheapest airline that flies from London to Louisville Intl?

United Airlines, Lufthansa, and Iberia are the most popular carriers operating from London to Louisville Intl

Which airlines fly to Louisville?

British Airways, Virgin Atlantic and American Airlines are the top three most popular airlines that fly to Louisville from London according to our data. British Airways is the first choice among our users, with 58% of people opting to fly with this airline when travelling to Louisville. Keep in mind that there are 10 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

Which stopover airport has the shortest travel time from London to Louisville?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 11h 58m.

Which stopover airport offers the lowest fares from London to Louisville?

Flights via Charlotte (CLT) offer the lowest average return price of £658.

Which airport is the most popular for stopovers for flights between London and Louisville?

Atlanta (ATL) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport has the shortest connection time from London to Louisville?

Charlotte (CLT) has the shortest average stopover time for this route: 1h 23m.

When did momondo last update prices for flights from London to Louisville Intl Airport?

Prices for flights from London to Louisville Intl Airport are updated daily.

How many operators does momondo search for flights from London to Louisville Intl Airport?

As of September 2026, there are 4 operators available to choose from for flights from London to Louisville Intl Airport.

How old do you have to be to fly from London to Louisville Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Louisville Intl Airport.

What documentation or ID do you need to fly to Louisville Intl Airport?

The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£357 Cheap Flights from London to Louisville in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London to Louisville

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

06:40 - 21:33LHR London Heathrow-SDF Louisville Intl

19h 53m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson

15:26 - 21:40SDF Louisville Intl-LHR London Heathrow

25h 14m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen

£609Scandinavian Airlines

Tue, 13 Oct - Tue, 20 Oct

18:40 - 22:37LHR London Heathrow-SDF Louisville Intl

32h 57m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson

15:26 - 17:40SDF Louisville Intl-LHR London Heathrow

21h 14m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen

£620Scandinavian Airlines

Wed, 7 Oct - Sat, 17 Oct

09:00 - 20:52LHR London Heathrow-SDF Louisville Intl

16h 52m2 stops Zurich Chicago O'Hare Intl

11:17 - 06:20SDF Louisville Intl-LHR London Heathrow

14h 03m1 stop Newark

£681United Airlines

Wed, 4 Nov - Wed, 11 Nov

09:00 - 20:52LHR London Heathrow-SDF Louisville Intl

16h 52m2 stops Zurich Chicago O'Hare Intl

11:17 - 06:20SDF Louisville Intl-LHR London Heathrow

14h 03m1 stop Newark

£681United Airlines

Wed, 4 Nov - Wed, 11 Nov

11:15 - 23:59LGW London Gatwick-SDF Louisville Intl

41h 44m2 stops Orlando Miami

06:02 - 07:30SDF Louisville Intl-LGW London Gatwick

44h 28m2 stops Miami Orlando

£685American Airlines

Tue, 3 Nov - Tue, 10 Nov

09:45 - 16:37LHR London Heathrow-SDF Louisville Intl

11h 52m1 stop Chicago O'Hare Intl

18:08 - 09:35SDF Louisville Intl-LHR London Heathrow

10h 27m1 stop Boston Logan Intl

£707British Airways

Wed, 14 Oct - Wed, 21 Oct

17:50 - 21:13LHR London Heathrow-SDF Louisville Intl

32h 23m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

17:57 - 10:40SDF Louisville Intl-LHR London Heathrow

35h 43m2 stops Atlanta Hartsfield-Jackson Tampa

£708Virgin Atlantic

Tue, 3 Nov - Sun, 8 Nov

10:50 - 00:23LHR London Heathrow-SDF Louisville Intl

18h 33m1 stop Atlanta Hartsfield-Jackson

17:45 - 06:25SDF Louisville Intl-LHR London Heathrow

31h 40m1 stop Atlanta Hartsfield-Jackson

£710Virgin Atlantic

Sun, 27 Dec - Sun, 10 Jan

14:10 - 23:38LHR London Heathrow-SDF Louisville Intl

14h 28m1 stop Charlotte Douglas

17:42 - 12:00SDF Louisville Intl-LHR London Heathrow

13h 18m1 stop Charlotte Douglas

£711British Airways

Tue, 3 Nov - Tue, 10 Nov

07:30 - 22:03LHR London Heathrow-SDF Louisville Intl

19h 33m2 stops Madrid Barajas Philadelphia

11:08 - 07:00SDF Louisville Intl-LHR London Heathrow

14h 52m2 stops Philadelphia Boston Logan Intl

£720American Airlines

Tue, 3 Nov - Mon, 9 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

07:30 - 22:33LHR London Heathrow-SDF Louisville Intl

20h 03m2 stops Helsinki-Vantaa Chicago O'Hare Intl

17:59 - 12:15SDF Louisville Intl-LHR London Heathrow

13h 16m1 stop Chicago O'Hare Intl

£873Finnair

Tue, 22 Sep - Tue, 29 Sep

14:25 - 22:33LHR London Heathrow-SDF Louisville Intl

13h 08m1 stop Chicago O'Hare Intl

17:59 - 07:40SDF Louisville Intl-LHR London Heathrow

32h 41m1 stop Chicago O'Hare Intl

£875Finnair

Tue, 22 Sep - Tue, 29 Sep

07:30 - 22:33LHR London Heathrow-SDF Louisville Intl

20h 03m2 stops Helsinki-Vantaa Chicago O'Hare Intl

14:47 - 10:35SDF Louisville Intl-LHR London Heathrow

14h 48m2 stops Chicago O'Hare Intl Madrid Barajas

£888Multiple Airlines

Tue, 22 Sep - Tue, 29 Sep

14:10 - 23:56LHR London Heathrow-SDF Louisville Intl

14h 46m2 stops Toronto Pearson Intl Chicago O'Hare Intl

13:25 - 09:35SDF Louisville Intl-LHR London Heathrow

15h 10m2 stops Newark Toronto Pearson Intl

£904Air Canada

Tue, 22 Sep - Tue, 29 Sep

06:15 - 22:33LHR London Heathrow-SDF Louisville Intl

21h 18m2 stops Madrid Barajas Chicago O'Hare Intl

17:59 - 10:50SDF Louisville Intl-LHR London Heathrow

11h 51m1 stop Chicago O'Hare Intl

£943Iberia

Tue, 22 Sep - Tue, 29 Sep

09:45 - 22:33LHR London Heathrow-SDF Louisville Intl

17h 48m1 stop Chicago O'Hare Intl

17:59 - 07:40SDF Louisville Intl-LHR London Heathrow

32h 41m1 stop Chicago O'Hare Intl

£950Multiple Airlines

Tue, 22 Sep - Tue, 29 Sep

07:45 - 20:13LHR London Heathrow-SDF Louisville Intl

17h 28m1 stop Newark

18:16 - 11:55SDF Louisville Intl-LHR London Heathrow

12h 39m1 stop Chicago O'Hare Intl

£976Lufthansa

Thu, 24 Sep - Sun, 4 Oct

06:50 - 17:40LHR London Heathrow-SDF Louisville Intl

15h 50m2 stops Brussels Bruxelles-National Newark

15:37 - 07:45SDF Louisville Intl-LHR London Heathrow

35h 08m1 stop Houston George Bush Intcntl

£998United Airlines

Thu, 24 Sep - Sun, 4 Oct

12:40 - 23:41LHR London Heathrow-SDF Louisville Intl

40h 01m2 stops Halifax Intl Newark

06:15 - 21:00SDF Louisville Intl-LHR London Heathrow

33h 45m2 stops Newark Halifax Intl

£999Air Canada

Thu, 24 Sep - Sun, 4 Oct

08:50 - 22:33LHR London Heathrow-SDF Louisville Intl

18h 43m2 stops Dublin Chicago O'Hare Intl

10:29 - 08:05SDF Louisville Intl-LHR London Heathrow

16h 36m2 stops Chicago O'Hare Intl Dublin

£1,005Aer Lingus

Tue, 22 Sep - Thu, 24 Sep

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Finnair flights from London to Louisville

Our best Finnair deals on London to Louisville flight tickets

Finnair

4 Nov

LHR10:05London Heathrow

15h 54m

1 stop

SDF20:59Louisville Intl

11 Nov

SDF13:25Louisville Intl

13h 50m

1 stop

LHR08:15London Heathrow

£657

Finnair

7 Oct

LHR14:25London Heathrow

36h 00m

1 stop

SDF21:25Louisville Intl

13 Oct

SDF18:07Louisville Intl

11h 43m

1 stop

LHR10:50London Heathrow

£663

Finnair

7 Oct

LHR16:25London Heathrow

34h 00m

1 stop

SDF21:25Louisville Intl

13 Oct

SDF18:07Louisville Intl

11h 43m

1 stop

LHR10:50London Heathrow

£677

United Airlines flights from London to Louisville

Our best United Airlines deals on London to Louisville flight tickets

United Airlines

3 Nov

LHR09:00London Heathrow

16h 52m

2 stops

SDF20:52Louisville Intl

10 Nov

SDF06:00Louisville Intl

10h 20m

1 stop

LHR21:20London Heathrow

£681

United Airlines

9 Nov

LHR09:00London Heathrow

16h 52m

2 stops

SDF20:52Louisville Intl

18 Nov

SDF14:11Louisville Intl

11h 29m

1 stop

LHR06:40London Heathrow

£687

United Airlines

2 Nov

LHR06:50London Heathrow

15h 12m

2 stops

SDF17:02Louisville Intl

9 Nov

SDF06:00Louisville Intl

10h 20m

1 stop

LHR21:20London Heathrow

£688

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Tue 13/10

06:40-21:33

2 stops19h 53m

Louisville Intl

Tue 20/10

15:26-21:40

2 stops25h 14m

£609

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Wed 7/10

18:40-22:37

2 stops32h 57m

Louisville Intl

Sat 17/10

15:26-17:40

2 stops21h 14m

£620

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Wed 4/11

09:00-20:52

2 stops16h 52m

Louisville Intl

Wed 11/11

11:17-06:20

1 stop14h 03m

£681

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Wed 4/11

09:00-20:52

2 stops16h 52m

Louisville Intl

Wed 11/11

11:17-06:20

1 stop14h 03m

£681

LondonLouisville

LGW London Gatwick - SDF Louisville Intl

LGWSDF

London Gatwick

Tue 3/11

11:15-23:59

2 stops41h 44m

Louisville Intl

Tue 10/11

06:02-07:30

2 stops44h 28m

£685

Fastest return journey

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Wed 14/10

09:45-16:37

1 stop11h 52m

Louisville Intl

Wed 21/10

18:08-09:35

1 stop10h 27m

£707

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Tue 3/11

17:50-21:13

2 stops32h 23m

Louisville Intl

Sun 8/11

17:57-10:40

2 stops35h 43m

£708

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Sun 27/12

10:50-00:23

1 stop18h 33m

Louisville Intl

Sun 10/1

17:45-06:25

1 stop31h 40m

£710

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Tue 3/11

14:10-23:38

1 stop14h 28m

Louisville Intl

Tue 10/11

17:42-12:00

1 stop13h 18m

£711

LondonLouisville

LHR London Heathrow - SDF Louisville Intl

LHRSDF

London Heathrow

Tue 3/11

07:30-22:03

2 stops19h 33m

Louisville Intl

Mon 9/11

11:08-07:00

2 stops14h 52m

£720

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Stopovers

What is the typical price of a round-trip flight between London and Louisville?

Prices are currently low for flights on this route.

Typical prices usually range from £631 to £801.
The lowest price recently found on this route was £609.

What is the cheapest month to fly to Louisville?

The month of February is, on average, the cheapest month to fly to Louisville from London, with most prices found around £631. If you aren’t able to travel to Louisville during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £647.

Can stopping save me money on London to Louisville flights?

You could potentially save up to 57% on your flight if you consider stops on a London to Louisville flight.

How have London to Louisville flight prices changed over time?

When to book flights from London to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from London to Louisville according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London to Louisville (LON to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Louisville

Best price found	£357
Fastest flight time	15h 54m
Direct flights	None

The best one-way flight to Louisville from London in the past 72 hours is £357. The best return flight deal from London to Louisville found on momondo in the last 72 hours is £609.

The fastest flight from London to Louisville takes 15h 54m

There are no direct flights from London to Louisville. There are no popular flight routes from London to Louisville.

Search flight deals

Frequently asked questions about flying from London to Louisville

How far is London to Louisville Intl by plane?
The straight-line distance from London to Louisville Intl is 4042.6 mi. By plane, this route typically takes 15h 54m.
When did momondo last update prices for flights from London to Louisville Intl Airport?
Prices for flights from London to Louisville Intl Airport are updated daily.
How many operators does momondo search for flights from London to Louisville Intl Airport?
As of September 2026, there are 4 operators available to choose from for flights from London to Louisville Intl Airport.
How old do you have to be to fly from London to Louisville Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London to Louisville?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London to Louisville is British Airways (46% of total bookings). The next most popular airlines are Virgin Atlantic (41%) and United Airlines (13%).

Best airlines flying from London to Louisville

Compare and see reviews for airlines that fly from London to Louisville with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £524	Free Cancellation	Rating 6.7 8,225 reviews	Search British Airways flights
United Airlines	PriceFrom £593	Free Cancellation	Rating 7.4 10,230 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom £657	Free Cancellation	Rating 7.4 694 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom £754	Free Cancellation	Rating 7.0 12,085 reviews	Search American Airlines flights

Charlestown

Why use momondo?

Why should I use momondo to find a flight deal from London to Louisville?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Louisville from London.

Can I find flights from London to Louisville with flexible booking policies on momondo?

Yes. All flights to Louisville from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Louisville?

Once all potential London to Louisville flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Louisville right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Louisville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from London to Louisville from £357

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Louisville departing on 4/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Finnair flights from London to Louisville

Our best Finnair deals on London to Louisville flight tickets

United Airlines flights from London to Louisville

Our best United Airlines deals on London to Louisville flight tickets

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See travel insights to Louisville from

How to get the cheapest flight ticket from London to Louisville

What is the typical price of a round-trip flight between London and Louisville?

What is the cheapest month to fly to Louisville?

Can stopping save me money on London to Louisville flights?

How have London to Louisville flight prices changed over time?

What is the cheapest airline that flies from London to Louisville Intl?

Which airlines fly to Louisville?

Which airport is the most popular for stopovers for flights between London and Louisville?

Which stopover airport offers the lowest fares from London to Louisville?

Which stopover airport has the shortest travel time from London to Louisville?

Which stopover airport has the shortest connection time from London to Louisville?

When to book flights from London to Louisville

Cheap London to Louisville (LON to SDF) flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from London to Louisville

Best airlines flying from London to Louisville

Compare and see reviews for airlines that fly from London to Louisville with momondo

Travelling to a place near Louisville?

Why use momondo?

An easier way to manage your Louisville trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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