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

Iberia, Delta, and Virgin Atlantic 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.

£171 Cheap Flights from Louisville to London in 2026

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.

18:30 - 11:05

SDF

LHR

11h 35m

1 stop

06:50 - 16:57

LHR

SDF

15h 07m

2 stops

£577United Airlines

Sun, 1 Nov - Tue, 3 Nov

05:15 - 07:10

SDF

LHR

20h 55m

2 stops

06:50 - 16:57

LHR

SDF

15h 07m

2 stops

£580United Airlines

Sun, 1 Nov - Tue, 3 Nov

18:14 - 12:15

SDF

LHR

13h 01m

1 stop

06:15 - 21:35

LHR

SDF

19h 20m

2 stops

£641Iberia

Mon, 19 Oct - Wed, 28 Oct

09:00 - 07:10

SDF

LHR

17h 10m

2 stops

11:10 - 22:09

LHR

SDF

15h 59m

2 stops

£642Multiple Airlines

Tue, 1 Dec - Wed, 9 Dec

18:14 - 12:15

SDF

LHR

13h 01m

1 stop

07:35 - 21:35

LHR

SDF

18h 00m

2 stops

£645Iberia

Mon, 19 Oct - Wed, 28 Oct

18:10 - 11:40

SDF

LHR

12h 30m

1 stop

11:45 - 19:13

LHR

SDF

12h 28m

1 stop

£646British Airways

Tue, 1 Dec - Wed, 9 Dec

18:14 - 17:15

SDF

LHR

18h 01m

2 stops

07:35 - 21:35

LHR

SDF

18h 00m

2 stops

£647Iberia

Mon, 19 Oct - Wed, 28 Oct

12:41 - 10:35

SDF

LHR

16h 54m

2 stops

07:35 - 21:35

LHR

SDF

18h 00m

2 stops

£651Iberia

Wed, 21 Oct - Wed, 28 Oct

16:10 - 10:00

SDF

LHR

12h 50m

1 stop

07:35 - 19:13

LHR

SDF

16h 38m

2 stops

£654British Airways

Tue, 1 Dec - Wed, 9 Dec

08:09 - 07:15

SDF

LHR

18h 06m

1 stop

08:40 - 20:33

LHR

SDF

16h 53m

2 stops

£659Delta

Mon, 21 Sep - Fri, 2 Oct

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Iberia flights from Louisville to London

Our best Iberia deals on Louisville to London flight tickets

Iberia

19 Oct

SDF18:14Louisville Intl

13h 01m

1 stop

LHR12:15London Heathrow

28 Oct

LHR06:15London Heathrow

19h 20m

2 stops

SDF21:35Louisville Intl

£641

Iberia

19 Oct

SDF18:14Louisville Intl

13h 01m

1 stop

LHR12:15London Heathrow

28 Oct

LHR07:35London Heathrow

18h 00m

2 stops

SDF21:35Louisville Intl

£645

Iberia

19 Oct

SDF18:14Louisville Intl

18h 01m

2 stops

LHR17:15London Heathrow

28 Oct

LHR07:35London Heathrow

18h 00m

2 stops

SDF21:35Louisville Intl

£647

British Airways flights from Louisville to London

Our best British Airways deals on Louisville to London flight tickets

British Airways

1 Dec

SDF18:10Louisville Intl

12h 30m

1 stop

LHR11:40London Heathrow

9 Dec

LHR11:45London Heathrow

12h 28m

1 stop

SDF19:13Louisville Intl

£646

British Airways

1 Dec

SDF16:10Louisville Intl

12h 50m

1 stop

LHR10:00London Heathrow

9 Dec

LHR07:35London Heathrow

16h 38m

2 stops

SDF19:13Louisville Intl

£654

British Airways

21 Sept

SDF17:59Louisville Intl

11h 51m

1 stop

LHR10:50London Heathrow

2 Oct

LHR14:25London Heathrow

13h 08m

1 stop

SDF22:33Louisville Intl

£666

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 1/11

18:30-11:05

1 stop11h 35m

London Heathrow

Tue 3/11

06:50-16:57

2 stops15h 07m

£577

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 1/11

05:15-07:10

2 stops20h 55m

London Heathrow

Tue 3/11

06:50-16:57

2 stops15h 07m

£580

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 19/10

18:14-12:15

1 stop13h 01m

London Heathrow

Wed 28/10

06:15-21:35

2 stops19h 20m

£641

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 1/12

09:00-07:10

2 stops17h 10m

London Heathrow

Wed 9/12

11:10-22:09

2 stops15h 59m

£642

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 19/10

18:14-12:15

1 stop13h 01m

London Heathrow

Wed 28/10

07:35-21:35

2 stops18h 00m

£645

Fastest return journey

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 1/12

18:10-11:40

1 stop12h 30m

London Heathrow

Wed 9/12

11:45-19:13

1 stop12h 28m

£646

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 19/10

18:14-17:15

2 stops18h 01m

London Heathrow

Wed 28/10

07:35-21:35

2 stops18h 00m

£647

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 21/10

12:41-10:35

2 stops16h 54m

London Heathrow

Wed 28/10

07:35-21:35

2 stops18h 00m

£651

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 1/12

16:10-10:00

1 stop12h 50m

London Heathrow

Wed 9/12

07:35-19:13

2 stops16h 38m

£654

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 21/9

08:09-07:15

1 stop18h 06m

London Heathrow

Fri 2/10

08:40-20:33

2 stops16h 53m

£659

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 £708 to £874.
The lowest price recently found on this route was £577.

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 £554, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Louisville averaging around £559.

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	10h 55m
Direct flights	None

The fastest flight from Louisville to London takes 10h 55m

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

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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 55m.
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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Gatwick

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Luton

Southend-on-Sea

Slough

Ipswich

Maidstone

Folkestone

Ilford

Hastings

Canterbury

Guildford

Chichester

Bedford

Hayes

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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Cheap flights from Louisville to London from £171

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 22/10. 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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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

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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

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.

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

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