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

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

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

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

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents you'll need for your trip to London 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 London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£240 Cheap Flights from Louisville to London in 2026/27

Find the cheapest flights from Louisville to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:39 - 07:10SDF Louisville Intl-LHR London Heathrow

15h 31m1 stop Detroit Metropolitan Wayne County

11:45 - 21:13LHR London Heathrow-SDF Louisville Intl

14h 28m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

£562Virgin Atlantic

Mon, 19 Oct - Tue, 10 Nov

13:59 - 07:50SDF Louisville Intl-LHR London Heathrow

12h 51m1 stop Atlanta Hartsfield-Jackson

10:00 - 23:13LHR London Heathrow-SDF Louisville Intl

18h 13m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

£564Delta

Wed, 4 Nov - Wed, 11 Nov

06:00 - 06:25SDF Louisville Intl-LHR London Heathrow

19h 25m1 stop Atlanta Hartsfield-Jackson

06:20 - 22:51LHR London Heathrow-SDF Louisville Intl

20h 31m2 stops Paris Charles de Gaulle Minneapolis St Paul

£565Delta

Mon, 19 Oct - Fri, 30 Oct

14:36 - 07:10SDF Louisville Intl-LHR London Heathrow

11h 34m1 stop Detroit Metropolitan Wayne County

10:50 - 19:14LHR London Heathrow-SDF Louisville Intl

13h 24m1 stop Atlanta Hartsfield-Jackson

£567Virgin Atlantic

Mon, 19 Oct - Tue, 10 Nov

11:06 - 07:45SDF Louisville Intl-LHR London Heathrow

15h 39m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

06:30 - 16:54LHR London Heathrow-SDF Louisville Intl

15h 24m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

£569Virgin Atlantic

Wed, 4 Nov - Wed, 11 Nov

13:15 - 07:15SDF Louisville Intl-LHR London Heathrow

13h 00m1 stop Atlanta Hartsfield-Jackson

12:25 - 22:51LHR London Heathrow-SDF Louisville Intl

15h 26m1 stop Minneapolis St Paul

£570Delta

Sun, 4 Oct - Tue, 13 Oct

17:57 - 11:40SDF Louisville Intl-LHR London Heathrow

12h 43m1 stop Atlanta Hartsfield-Jackson

09:50 - 18:11LHR London Heathrow-SDF Louisville Intl

13h 21m1 stop Minneapolis St Paul

£570Virgin Atlantic

Wed, 4 Nov - Wed, 11 Nov

15:02 - 11:40SDF Louisville Intl-LHR London Heathrow

15h 38m1 stop Atlanta Hartsfield-Jackson

13:20 - 00:09LHR London Heathrow-SDF Louisville Intl

15h 49m2 stops Washington, D.C. Dulles Intl Atlanta Hartsfield-Jackson

£573Virgin Atlantic

Wed, 9 Dec - Thu, 17 Dec

13:20 - 09:00SDF Louisville Intl-LGW London Gatwick

14h 40m2 stops Boston Logan Intl Paris Charles de Gaulle

10:00 - 23:13LGW London Gatwick-SDF Louisville Intl

18h 13m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

£579Delta

Tue, 3 Nov - Tue, 10 Nov

13:00 - 07:10SDF Louisville Intl-LHR London Heathrow

37h 10m2 stops Newark Montreal Pierre Elliott Trudeau Intl

06:50 - 17:30LHR London Heathrow-SDF Louisville Intl

15h 40m2 stops Brussels Bruxelles-National Newark

£592United Airlines

Tue, 2 Mar - Fri, 5 Mar

Cheap last-minute flights

Enter your travel dates to find the best prices.

14:47 - 07:10SDF Louisville Intl-LHR London Heathrow

11h 23m1 stop Detroit Metropolitan Wayne County

10:45 - 17:18LHR London Heathrow-SDF Louisville Intl

11h 33m1 stop Detroit Metropolitan Wayne County

£549Virgin Atlantic

Sun, 27 Sep - Tue, 13 Oct

15:43 - 07:15SDF Louisville Intl-LHR London Heathrow

10h 32m1 stop Atlanta Hartsfield-Jackson

06:15 - 16:49LHR London Heathrow-SDF Louisville Intl

15h 34m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

£564Virgin Atlantic

Sun, 27 Sep - Tue, 13 Oct

12:39 - 07:40SDF Louisville Intl-LHR London Heathrow

14h 01m2 stops Boston Logan Intl Amsterdam Schiphol

06:15 - 17:18LHR London Heathrow-SDF Louisville Intl

16h 03m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County

£587Delta

Sun, 27 Sep - Tue, 13 Oct

13:15 - 06:25SDF Louisville Intl-LHR London Heathrow

12h 10m1 stop Atlanta Hartsfield-Jackson

10:45 - 21:13LHR London Heathrow-SDF Louisville Intl

15h 28m1 stop Detroit Metropolitan Wayne County

£607KLM

Sun, 27 Sep - Sat, 10 Oct

18:00 - 13:15SDF Louisville Intl-LHR London Heathrow

14h 15m1 stop Atlanta Hartsfield-Jackson

11:15 - 20:35LHR London Heathrow-SDF Louisville Intl

14h 20m1 stop Atlanta Hartsfield-Jackson

£644KLM

Sat, 26 Sep - Sun, 11 Oct

08:09 - 07:10SDF Louisville Intl-LHR London Heathrow

18h 01m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

10:45 - 21:13LHR London Heathrow-SDF Louisville Intl

15h 28m1 stop Detroit Metropolitan Wayne County

£647Delta

Sat, 26 Sep - Sat, 10 Oct

06:15 - 21:20SDF Louisville Intl-LHR London Heathrow

10h 05m1 stop Newark

08:00 - 19:11LHR London Heathrow-SDF Louisville Intl

16h 11m1 stop Chicago O'Hare Intl

£667United Airlines

Sun, 27 Sep - Sun, 11 Oct

06:15 - 21:20SDF Louisville Intl-LHR London Heathrow

10h 05m1 stop Newark

07:45 - 23:41LHR London Heathrow-SDF Louisville Intl

20h 56m1 stop Newark

£682Lufthansa

Thu, 24 Sep - Sun, 27 Sep

13:25 - 07:15SDF Louisville Intl-LHR London Heathrow

12h 50m1 stop Newark

12:00 - 20:13LHR London Heathrow-SDF Louisville Intl

13h 13m1 stop Newark

£693Lufthansa

Sat, 26 Sep - Sat, 10 Oct

06:15 - 21:20SDF Louisville Intl-LHR London Heathrow

10h 05m1 stop Newark

10:00 - 19:55LHR London Heathrow-SDF Louisville Intl

14h 55m1 stop Houston George Bush Intcntl

£696Multiple Airlines

Sun, 27 Sep - Mon, 12 Oct

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Delta flights from Louisville to London

Our best Delta deals on Louisville to London flight tickets

Delta

4 Nov

SDF13:59Louisville Intl

12h 51m

1 stop

LHR07:50London Heathrow

11 Nov

LHR10:00London Heathrow

18h 13m

2 stops

SDF23:13Louisville Intl

£564

Delta

19 Oct

SDF06:00Louisville Intl

19h 25m

1 stop

LHR06:25London Heathrow

30 Oct

LHR06:20London Heathrow

20h 31m

2 stops

SDF22:51Louisville Intl

£565

Delta

4 Oct

SDF13:15Louisville Intl

13h 00m

1 stop

LHR07:15London Heathrow

13 Oct

LHR12:25London Heathrow

15h 26m

1 stop

SDF22:51Louisville Intl

£570

United Airlines flights from Louisville to London

Our best United Airlines deals on Louisville to London flight tickets

United Airlines

2 Mar

SDF13:00Louisville Intl

37h 10m

2 stops

LHR07:10London Heathrow

5 Mar

LHR06:50London Heathrow

15h 40m

2 stops

SDF17:30Louisville Intl

£592

United Airlines

2 Mar

SDF13:00Louisville Intl

37h 10m

2 stops

LHR07:10London Heathrow

5 Mar

LHR06:50London Heathrow

15h 40m

2 stops

SDF17:30Louisville Intl

£593

United Airlines

2 Mar

SDF15:50Louisville Intl

34h 50m

1 stop

LHR07:40London Heathrow

5 Mar

LHR06:50London Heathrow

17h 44m

2 stops

SDF19:34Louisville Intl

£593

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 19/10

10:39-07:10

1 stop15h 31m

London Heathrow

Tue 10/11

11:45-21:13

2 stops14h 28m

£562

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 4/11

13:59-07:50

1 stop12h 51m

London Heathrow

Wed 11/11

10:00-23:13

2 stops18h 13m

£564

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 19/10

06:00-06:25

1 stop19h 25m

London Heathrow

Fri 30/10

06:20-22:51

2 stops20h 31m

£565

Fastest return journey

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 19/10

14:36-07:10

1 stop11h 34m

London Heathrow

Tue 10/11

10:50-19:14

1 stop13h 24m

£567

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 4/11

11:06-07:45

2 stops15h 39m

London Heathrow

Wed 11/11

06:30-16:54

2 stops15h 24m

£569

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Sun 4/10

13:15-07:15

1 stop13h 00m

London Heathrow

Tue 13/10

12:25-22:51

1 stop15h 26m

£570

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 4/11

17:57-11:40

1 stop12h 43m

London Heathrow

Wed 11/11

09:50-18:11

1 stop13h 21m

£570

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 9/12

15:02-11:40

1 stop15h 38m

London Heathrow

Thu 17/12

13:20-00:09

2 stops15h 49m

£573

LouisvilleLondon

SDF Louisville Intl - LGW London Gatwick

SDFLGW

Louisville Intl

Tue 3/11

13:20-09:00

2 stops14h 40m

London Gatwick

Tue 10/11

10:00-23:13

2 stops18h 13m

£578

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 2/3

13:00-07:10

2 stops37h 10m

London Heathrow

Fri 5/3

06:50-17:30

2 stops15h 40m

£592

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 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

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 £620 to £958.
The lowest price recently found on this route was £562.

What is the cheapest month to fly to London?

The cheapest month to fly to London from Louisville is in November. Flight prices, which tend to average around £543, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Louisville averaging around £576.

How have Louisville to London flight prices changed over time?

As of September 2026, prices for Louisville to London flights are approximately 13% 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 return 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	£240
Fastest flight time	10h 56m
Direct flights	None

The best one-way flight to London from Louisville in the past 72 hours is £240. The best return flight deal from Louisville to London found on momondo in the last 72 hours is £562.

The fastest flight from Louisville to London takes 10h 56m

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?
There are 4042.6 mi between Louisville Intl and London. By plane, this route typically takes 10h 56m.
When did momondo last update prices for flights from Louisville Intl Airport to London?
Prices for flights from Louisville Intl Airport to London are updated daily.
How old do you have to be to fly from Louisville Intl Airport to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents you'll need for your trip to London 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 London. 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 Louisville to London?
Based on momondo bookings for flights between Louisville and London, the leading airline is British Airways, making up 100% of the total bookings.

Eastbourne

Wembley

Gatwick

Milton Keynes

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Bedford

Guildford

Colchester

Harlow

Chelmsford

Why use momondo?

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

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 London from Louisville.

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

momondo does allow users to show only those flights to London from Louisville which offer a flexible booking policy as well as other useful filters and features.

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?

Yes momondo offers price alerts on flights to London from Louisville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London 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.

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Fly into one of these airports located in London

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Cheap flights from Louisville to London from £240

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 10/1. 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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Delta flights from Louisville to London

Our best Delta deals on Louisville to London flight tickets

United Airlines flights from Louisville to London

Our best United Airlines deals on Louisville to London flight tickets

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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?

How have Louisville to London flight prices changed over time?

What is the cheapest airline that flies from Louisville Intl 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

Travelling to a place near London?

Why use momondo?

An easier way to manage your London 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 Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Fly your favourite 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

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