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

Washington, D.C. (IAD) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 10h 30m.

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

Flights via Atlanta (ATL) offer the lowest average round-trip price of $771.

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

British Airways, United Airlines, and Air Canada are the most popular carriers operating from Louisville Intl to London

What airlines fly to London?

British Airways, American Airlines and Delta are the top three most popular airlines that fly to London from Louisville according to our data. British Airways is the first choice among our users, with 57% of people opting to fly with this airline when traveling to London. Keep in mind that there are 9 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

Washington, D.C. (IAD) has the shortest average layover time for this route: 2h 27m.

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

Prices for flights from Louisville Intl Airport to London refresh daily.

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

As of October 2026, there are 5 operators available to choose from for flights from Louisville Intl Airport to London.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to London.

What documentation or ID do you need to fly to London?

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$322 Cheap Flights from Louisville to London in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:50 pm - 7:40 amSDF Louisville Intl-LHR London Heathrow

34h 50m1 stop Houston George Bush Intcntl

6:50 am - 5:07 pmLHR London Heathrow-SDF Louisville Intl

15h 17m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$763United Airlines

Tue, Mar 2 - Fri, Mar 5

3:50 pm - 7:40 amSDF Louisville Intl-LHR London Heathrow

34h 50m1 stop Houston George Bush Intcntl

6:50 am - 5:07 pmLHR London Heathrow-SDF Louisville Intl

15h 17m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$768United Airlines

Tue, Mar 2 - Fri, Mar 5

10:13 am - 8:35 amSDF Louisville Intl-LHR London Heathrow

17h 22m1 stop Chicago O'Hare Intl

6:15 am - 9:37 pmLHR London Heathrow-SDF Louisville Intl

20h 22m2 stops Madrid Barajas Chicago O'Hare Intl

$884Iberia

Wed, Nov 18 - Wed, Nov 25

1:10 pm - 6:55 amSDF Louisville Intl-LHR London Heathrow

12h 45m1 stop Chicago O'Hare Intl

11:00 am - 9:28 pmLHR London Heathrow-SDF Louisville Intl

14h 28m1 stop Chicago O'Hare Intl

$900British Airways

Mon, Mar 8 - Thu, Mar 18

7:00 am - 7:10 amSDF Louisville Intl-LHR London Heathrow

19h 10m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

9:00 am - 11:44 pmLHR London Heathrow-SDF Louisville Intl

43h 44m2 stops Halifax Intl Newark

$904Air Canada

Tue, Jan 19 - Tue, Feb 2

6:29 pm - 11:35 amSDF Louisville Intl-LHR London Heathrow

12h 06m1 stop Chicago O'Hare Intl

11:00 am - 9:37 pmLHR London Heathrow-SDF Louisville Intl

15h 37m1 stop Chicago O'Hare Intl

$911British Airways

Tue, Jan 19 - Tue, Feb 2

5:46 pm - 11:40 amSDF Louisville Intl-LHR London Heathrow

12h 54m1 stop Charlotte Douglas

9:55 am - 11:27 pmLHR London Heathrow-SDF Louisville Intl

18h 32m1 stop Charlotte Douglas

$912American Airlines

Tue, Jan 19 - Tue, Feb 2

1:10 pm - 6:55 amSDF Louisville Intl-LHR London Heathrow

13h 45m1 stop Chicago O'Hare Intl

9:15 am - 7:02 pmLHR London Heathrow-SDF Louisville Intl

14h 47m1 stop Charlotte Douglas

$965American Airlines

Tue, Mar 16 - Sat, Apr 17

12:53 pm - 6:25 amSDF Louisville Intl-LHR London Heathrow

13h 32m1 stop Atlanta Hartsfield-Jackson

6:30 am - 5:40 pmLHR London Heathrow-SDF Louisville Intl

16h 10m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$966Delta

Thu, Mar 25 - Thu, Apr 8

12:50 pm - 7:05 amSDF Louisville Intl-LHR London Heathrow

13h 15m1 stop Minneapolis St Paul

6:30 am - 9:41 pmLHR London Heathrow-SDF Louisville Intl

20h 11m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$1,209Delta

Fri, Dec 18 - Wed, Feb 10

Cheap last minute flights

Enter your travel dates to find the best prices.

12:45 pm - 10:25 amSDF Louisville Intl-LHR London Heathrow

17h 40m1 stop Chicago O'Hare Intl

6:05 am - 9:36 pmLHR London Heathrow-SDF Louisville Intl

20h 31m2 stops Madrid Barajas Chicago O'Hare Intl

$935Iberia

Mon, Oct 26 - Tue, Nov 3

12:45 pm - 10:25 amSDF Louisville Intl-LHR London Heathrow

17h 40m1 stop Chicago O'Hare Intl

7:30 am - 9:36 pmLHR London Heathrow-SDF Louisville Intl

19h 06m2 stops Madrid Barajas Chicago O'Hare Intl

$935Iberia

Tue, Oct 27 - Tue, Nov 3

2:10 pm - 7:55 amSDF Louisville Intl-LHR London Heathrow

13h 45m1 stop Chicago O'Hare Intl

6:50 am - 8:34 pmLHR London Heathrow-SDF Louisville Intl

18h 44m2 stops Brussels Bruxelles-National Newark

$962United Airlines

Wed, Oct 28 - Fri, Nov 13

6:00 pm - 12:00 pmSDF Louisville Intl-LHR London Heathrow

14h 00m1 stop Charlotte Douglas

9:55 am - 5:25 pmLHR London Heathrow-SDF Louisville Intl

12h 30m1 stop Charlotte Douglas

$966American Airlines

Wed, Oct 28 - Fri, Nov 13

6:00 pm - 12:00 pmSDF Louisville Intl-LHR London Heathrow

14h 00m1 stop Charlotte Douglas

9:55 am - 5:25 pmLHR London Heathrow-SDF Louisville Intl

12h 30m1 stop Charlotte Douglas

$967American Airlines

Wed, Oct 28 - Fri, Nov 13

2:10 pm - 7:55 amSDF Louisville Intl-LHR London Heathrow

13h 45m1 stop Chicago O'Hare Intl

6:50 am - 8:34 pmLHR London Heathrow-SDF Louisville Intl

18h 44m2 stops Brussels Bruxelles-National Newark

$967United Airlines

Wed, Oct 28 - Fri, Nov 13

2:11 pm - 6:40 amSDF Louisville Intl-LHR London Heathrow

12h 29m1 stop Washington, D.C. Dulles Intl

6:50 am - 7:30 pmLHR London Heathrow-SDF Louisville Intl

17h 40m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

$968United Airlines

Wed, Oct 28 - Fri, Nov 13

6:00 am - 7:10 amSDF Louisville Intl-LHR London Heathrow

21h 10m2 stops Newark Montreal Pierre Elliott Trudeau Intl

9:00 am - 11:30 pmLHR London Heathrow-SDF Louisville Intl

43h 30m2 stops Halifax Intl Newark

$971Air Canada

Wed, Oct 28 - Fri, Nov 13

8:19 pm - 8:20 amSDF Louisville Intl-LHR London Heathrow

31h 01m1 stop Charlotte Douglas

9:55 am - 5:25 pmLHR London Heathrow-SDF Louisville Intl

12h 30m1 stop Charlotte Douglas

$1,038British Airways

Sat, Oct 24 - Sun, Nov 1

2:30 pm - 7:10 amSDF Louisville Intl-LHR London Heathrow

11h 40m1 stop Boston Logan Intl

3:40 pm - 10:38 amLHR London Heathrow-SDF Louisville Intl

22h 58m1 stop Chicago O'Hare Intl

$1,066British Airways

Sat, Oct 24 - Sat, Oct 31

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Iberia flights from Louisville to London

Our best Iberia deals on Louisville to London flight tickets

Iberia

Nov 18

SDF10:13 amLouisville Intl

17h 22m

1 stop

LHR8:35 amLondon Heathrow

Nov 25

LHR6:15 amLondon Heathrow

20h 22m

2 stops

SDF9:37 pmLouisville Intl

$884

Iberia

Mar 16

SDF1:10 pmLouisville Intl

15h 25m

1 stop

LHR8:35 amLondon Heathrow

Apr 17

LHR7:35 amLondon Heathrow

18h 55m

2 stops

SDF9:30 pmLouisville Intl

$926

Iberia

Mar 16

SDF1:10 pmLouisville Intl

15h 25m

1 stop

LHR8:35 amLondon Heathrow

Apr 17

LHR7:35 amLondon Heathrow

18h 55m

2 stops

SDF9:30 pmLouisville Intl

$927

British Airways flights from Louisville to London

Our best British Airways deals on Louisville to London flight tickets

British Airways

Mar 8

SDF1:10 pmLouisville Intl

12h 45m

1 stop

LHR6:55 amLondon Heathrow

Mar 18

LHR11:00 amLondon Heathrow

14h 28m

1 stop

SDF9:28 pmLouisville Intl

$900

British Airways

Jan 19

SDF6:29 pmLouisville Intl

12h 06m

1 stop

LHR11:35 amLondon Heathrow

Feb 2

LHR11:00 amLondon Heathrow

15h 37m

1 stop

SDF9:37 pmLouisville Intl

$911

British Airways

Nov 18

SDF1:14 pmLouisville Intl

12h 41m

1 stop

LHR6:55 amLondon Heathrow

Nov 25

LHR11:00 amLondon Heathrow

15h 37m

1 stop

SDF9:37 pmLouisville Intl

$915

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 3/2

3:50 pm-7:40 am

1 stop34h 50m

London Heathrow

Fri 3/5

6:50 am-5:07 pm

2 stops15h 17m

$763

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 3/2

3:50 pm-7:40 am

1 stop34h 50m

London Heathrow

Fri 3/5

6:50 am-5:07 pm

2 stops15h 17m

$768

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 11/18

10:13 am-8:35 am

1 stop17h 22m

London Heathrow

Wed 11/25

6:15 am-9:37 pm

2 stops20h 22m

$884

Quickest round-trip

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 3/8

1:10 pm-6:55 am

1 stop12h 45m

London Heathrow

Thu 3/18

11:00 am-9:28 pm

1 stop14h 28m

$900

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 1/19

7:00 am-7:10 am

2 stops19h 10m

London Heathrow

Tue 2/2

9:00 am-11:44 pm

2 stops43h 44m

$904

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 1/19

6:29 pm-11:35 am

1 stop12h 06m

London Heathrow

Tue 2/2

11:00 am-9:37 pm

1 stop15h 37m

$911

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 1/19

5:46 pm-11:40 am

1 stop12h 54m

London Heathrow

Tue 2/2

9:55 am-11:27 pm

1 stop18h 32m

$912

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 3/16

1:10 pm-6:55 am

1 stop13h 45m

London Heathrow

Sat 4/17

9:15 am-7:02 pm

1 stop14h 47m

$965

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Thu 3/25

12:53 pm-6:25 am

1 stop13h 32m

London Heathrow

Thu 4/8

6:30 am-5:40 pm

2 stops16h 10m

$966

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Fri 12/18

12:50 pm-7:05 am

1 stop13h 15m

London Heathrow

Wed 2/10

6:30 am-9:41 pm

2 stops20h 11m

$1,209

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to London

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

Layovers

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

Prices are currently low for flights on this route.

Typical prices usually range from $1,014 to $1,276.
The lowest price recently found on this route was $763.

What is the cheapest month to fly to London?

The cheapest month to fly to London from Louisville is in January. Flight prices, which tend to average around $782, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Louisville averaging around $905.

Can stopping save me money on Louisville to London flights?

You could potentially save up to 18% on your flight if you consider stops on a Louisville to London flight.

How have Louisville to London flight prices changed over time?

As of October 2026, prices for Louisville to London flights are approximately 43% cheaper when compared to flights at the same time last year.

When to book flights from Louisville to London

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

Estimated round-trip price

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

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

Best Price Found	$322
Fastest flight time	10h 40m
Direct flights	None

The best one-way flight to London from Louisville in the past 72 hours is $322. The best round-trip flight deal from Louisville to London found on momondo in the last 72 hours is $763.

The fastest flight from Louisville to London takes 10h 40m

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

Search flight deals

Frequently asked questions about flying from Louisville to London

How far is Louisville Intl to London by plane?
The straight-line distance from Louisville Intl to London is 4042.6 mi. In terms of flight time, this usually takes a little over 10h 40m.
When did momondo last update prices for flights from Louisville Intl Airport to London?
Prices for flights from Louisville Intl Airport to London refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to London?
As of October 2026, there are 5 operators available to choose from for flights from Louisville Intl Airport to London.
How old do you have to be to fly from Louisville Intl Airport to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Louisville to London?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to London is British Airways (33% of total bookings). The next most popular airlines are American Airlines (22%), United Airlines (19%), and Delta (14%).

Best airlines flying from Louisville to London

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $450	Free Cancellation	Rating 7.8 8,666 reviews	Search Delta flights
Virgin Atlantic	PriceFrom $598	Free Cancellation	Rating 7.5 697 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom $606	Free Cancellation	Rating 6.7 8,267 reviews	Search British Airways flights
American Airlines	PriceFrom $676	Free Cancellation	Rating 7.0 12,188 reviews	Search American Airlines flights
United Airlines	PriceFrom $705	Free Cancellation	Rating 7.3 10,405 reviews	Search United Airlines flights

Hounslow

Gatwick

Croydon

Hayes

Milton Keynes

Luton

Stansted

Kingston upon Thames

Dover

Wembley

Richmond

Watford

Crawley

Worthing

Harrow

Slough

Hook

Ilford

Canterbury

Brentford

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to London for you.

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

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

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

Once all potential Louisville to London 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 Louisville to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Louisville and alert you when they change.

An easier way to manage your London trip

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

Start using Trips

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Nearby airports

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Other United Kingdom destinations

Other flights from Louisville

Complete your trip

Feeling lucky

Fly into one of these airports located in London

London City Airport

London Gatwick Airport

London Heathrow Airport

London Luton Airport

London Southend Airport

London Stansted Airport

Cheap flights from Louisville to London from $322

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to London departing on 1/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Louisville to London

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Big names and deals

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Iberia flights from Louisville to London

Our best Iberia deals on Louisville to London flight tickets

British Airways flights from Louisville to London

Our best British Airways deals on Louisville to London flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Louisville to London that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Louisville to London

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

What is the cheapest month to fly to London?

Can stopping save me money on Louisville to London flights?

How have Louisville to London flight prices changed over time?

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

What airlines fly to London?

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

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

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

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

When to book flights from Louisville to London

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Louisville to London

Best airlines flying from Louisville to London

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

Traveling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize 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 Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Louisville

According to popular flight searches on momondo this year

Complete your trip to London

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According to popular flight searches on momondo this year