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

United Airlines, British Airways, and Delta 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.

£244 Cheap Flights from Louisville to London in 2026

Q: 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 £865 to £578. The lowest price recently found on this route was £642.

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Find the cheapest flights from Louisville to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:07 - 12:15

SDF

LHR

12h 08m

1 stop

07:50 - 22:58

LHR

SDF

20h 08m

2 stops

£642Iberia

Wed, 9 Sep - Tue, 22 Sep

19:07 - 10:50

SDF

LHR

10h 43m

1 stop

07:50 - 22:58

LHR

SDF

20h 08m

2 stops

£642Iberia

Wed, 9 Sep - Tue, 22 Sep

12:53 - 07:15

SDF

LHR

13h 22m

1 stop

12:25 - 22:55

LHR

SDF

15h 30m

1 stop

£645Virgin Atlantic

Wed, 14 Oct - Wed, 21 Oct

15:31 - 10:00

SDF

LGW

13h 29m

1 stop

14:00 - 08:46

LGW

SDF

47h 46m

2 stops

£649Multiple Airlines

Fri, 17 Jul - Wed, 26 Aug

19:14 - 10:50

SDF

LHR

10h 36m

1 stop

19:40 - 22:55

LHR

SDF

31h 15m

2 stops

£650Iberia

Tue, 20 Oct - Mon, 26 Oct

16:55 - 09:05

SDF

LHR

11h 10m

1 stop

06:15 - 21:48

LHR

SDF

20h 33m

2 stops

£656British Airways

Sun, 23 Aug - Fri, 4 Dec

06:49 - 09:00

SDF

LHR

21h 11m

1 stop

19:25 - 21:26

LHR

SDF

31h 01m

2 stops

£660British Airways

Wed, 2 Sep - Mon, 7 Sep

12:53 - 21:40

SDF

LHR

27h 47m

2 stops

06:40 - 00:02

LHR

SDF

22h 22m

2 stops

£661Scandinavian Airlines

Tue, 20 Oct - Sat, 24 Oct

19:08 - 10:30

SDF

LHR

10h 22m

1 stop

07:50 - 23:17

LHR

SDF

20h 27m

2 stops

£662Multiple Airlines

Mon, 17 Aug - Tue, 25 Aug

19:08 - 10:30

SDF

LHR

10h 22m

1 stop

09:45 - 21:26

LHR

SDF

16h 41m

1 stop

£662British Airways

Mon, 17 Aug - Tue, 25 Aug

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Iberia flights from Louisville to London

Our best Iberia deals on Louisville to London flight tickets

Iberia

9 Sept

SDF19:07Louisville Intl

12h 08m

1 stop

LHR12:15London Heathrow

22 Sept

LHR07:50London Heathrow

20h 08m

2 stops

SDF22:58Louisville Intl

£642

Iberia

9 Sept

SDF19:07Louisville Intl

10h 43m

1 stop

LHR10:50London Heathrow

22 Sept

LHR07:50London Heathrow

20h 08m

2 stops

SDF22:58Louisville Intl

£642

Iberia

20 Oct

SDF19:14Louisville Intl

10h 36m

1 stop

LHR10:50London Heathrow

26 Oct

LHR19:40London Heathrow

31h 15m

2 stops

SDF22:55Louisville Intl

£650

Air Canada flights from Louisville to London

Our best Air Canada deals on Louisville to London flight tickets

Air Canada

9 Sept

SDF07:22Louisville Intl

18h 08m

2 stops

LHR06:30London Heathrow

22 Sept

LHR12:40London Heathrow

39h 17m

2 stops

SDF22:57Louisville Intl

£676

Air Canada

9 Sept

SDF06:15Louisville Intl

19h 15m

2 stops

LHR06:30London Heathrow

22 Sept

LHR12:40London Heathrow

39h 17m

2 stops

SDF22:57Louisville Intl

£677

Air Canada

9 Aug

SDF07:10Louisville Intl

18h 20m

2 stops

LHR06:30London Heathrow

21 Aug

LHR14:05London Heathrow

31h 46m

2 stops

SDF16:51Louisville Intl

£679

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 9/9

19:07-12:15

1 stop12h 08m

London Heathrow

Tue 22/9

07:50-22:58

2 stops20h 08m

£642

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 9/9

19:07-10:50

1 stop10h 43m

London Heathrow

Tue 22/9

07:50-22:58

2 stops20h 08m

£642

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 14/10

12:53-07:15

1 stop13h 22m

London Heathrow

Wed 21/10

12:25-22:55

1 stop15h 30m

£645

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Fri 17/7

15:31-10:00

1 stop13h 29m

London Gatwick

Wed 26/8

14:00-08:46

2 stops47h 46m

£649

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 20/10

19:14-10:50

1 stop10h 36m

London Heathrow

Mon 26/10

19:40-22:55

2 stops31h 15m

£650

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 23/8

16:55-09:05

1 stop11h 10m

London Heathrow

Fri 4/12

06:15-21:48

2 stops20h 33m

£656

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 2/9

06:49-09:00

1 stop21h 11m

London Heathrow

Mon 7/9

19:25-21:26

2 stops31h 01m

£660

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 20/10

12:53-21:40

2 stops27h 47m

London Heathrow

Sat 24/10

06:40-00:02

2 stops22h 22m

£661

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

19:08-10:30

1 stop10h 22m

London Heathrow

Tue 25/8

07:50-23:17

2 stops20h 27m

£662

Fastest return journey

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

19:08-10:30

1 stop10h 22m

London Heathrow

Tue 25/8

09:45-21:26

1 stop16h 41m

£662

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?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Louisville is in April. Flight prices, which tend to average around £334, 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 £396.

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

You are more likely to see cheaper flights to London from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £673 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Louisville for as low as £568 on momondo.

How have Louisville to London flight prices changed over time?

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

Fastest flight time	9h 52m
Direct flights	None

The fastest flight from Louisville to London takes 9h 52m

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 9h 52m.
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

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Luton

Gatwick

Slough

Wembley

Maidstone

Ipswich

Southend-on-Sea

Ilford

Canterbury

Guildford

Hayes

Chelmsford

Folkestone

Dover

Chichester

Bedford

Ramsgate

Harlow

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

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London Heathrow Airport

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Cheap flights from Louisville to London from £244

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 24/8. 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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Big names, great deals

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Iberia flights from Louisville to London

Our best Iberia deals on Louisville to London flight tickets

Air Canada flights from Louisville to London

Our best Air Canada 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 far in advance should I book a flight from Louisville 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

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

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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