Which airlines fly to London?

British Airways, Iberia and Virgin Atlantic 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 64% of people opting to fly with this airline when travelling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

Aer Lingus and Finnair 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.

£150 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 £555 to £848. The lowest price recently found on this route was £430.

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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.

16:59 - 12:00

SDF

LHR

14h 01m

1 stop

06:15 - 21:26

LHR

SDF

19h 11m

2 stops

£430British Airways

Wed, 4 Mar - Wed, 11 Mar

06:10 - 06:55

SDF

LHR

19h 45m

1 stop

16:30 - 21:11

LHR

SDF

33h 41m

2 stops

£438British Airways

Mon, 16 Feb - Mon, 23 Feb

12:15 - 11:15

SDF

LHR

18h 00m

1 stop

19:25 - 21:28

LHR

SDF

31h 03m

2 stops

£440British Airways

Wed, 8 Apr - Mon, 13 Apr

14:11 - 10:00

SDF

LHR

14h 49m

1 stop

08:20 - 20:14

LHR

SDF

16h 54m

1 stop

£445Finnair

Tue, 17 Feb - Tue, 24 Feb

14:01 - 10:00

SDF

LHR

14h 59m

1 stop

08:55 - 20:14

LHR

SDF

16h 19m

1 stop

£445Finnair

Wed, 18 Feb - Tue, 31 Mar

05:00 - 07:30

SDF

LGW

21h 30m

2 stops

11:20 - 10:58

LGW

SDF

27h 38m

2 stops

£462American Airlines

Fri, 6 Mar - Fri, 13 Mar

14:35 - 09:15

SDF

LCY

13h 40m

2 stops

09:50 - 19:56

LCY

SDF

15h 06m

2 stops

£484Lufthansa

Tue, 17 Feb - Tue, 24 Feb

14:26 - 10:00

SDF

LGW

38h 34m

2 stops

14:00 - 11:08

LGW

SDF

25h 08m

1 stop

£494Multiple Airlines

Thu, 5 Mar - Thu, 12 Mar

13:50 - 09:05

SDF

LCY

14h 15m

2 stops

09:50 - 19:55

LCY

SDF

15h 05m

2 stops

£509Lufthansa

Wed, 18 Feb - Wed, 25 Feb

20:31 - 10:00

SDF

LGW

32h 29m

1 stop

14:00 - 11:38

LGW

SDF

26h 38m

1 stop

£522Multiple Airlines

Sat, 9 May - Tue, 12 May

Finnair flights from Louisville to London

Our best Finnair deals on Louisville to London flight tickets

Finnair

17 Feb

SDF14:11Louisville Intl

14h 49m

1 stop

LHR10:00London Heathrow

24 Feb

LHR08:20London Heathrow

16h 54m

1 stop

SDF20:14Louisville Intl

£445

Finnair

18 Feb

SDF14:01Louisville Intl

14h 59m

1 stop

LHR10:00London Heathrow

31 Mar

LHR08:55London Heathrow

16h 19m

1 stop

SDF20:14Louisville Intl

£445

Finnair

19 Apr

SDF19:05Louisville Intl

10h 25m

1 stop

LHR10:30London Heathrow

27 Apr

LHR09:45London Heathrow

18h 42m

1 stop

SDF23:27Louisville Intl

£494

United Airlines flights from Louisville to London

Our best United Airlines deals on Louisville to London flight tickets

United Airlines

17 Feb

SDF09:00Louisville Intl

15h 55m

1 stop

LHR05:55London Heathrow

24 Feb

LHR06:50London Heathrow

18h 19m

2 stops

SDF20:09Louisville Intl

£468

United Airlines

3 Feb

SDF18:12Louisville Intl

12h 03m

1 stop

LHR11:15London Heathrow

9 Feb

LHR12:05London Heathrow

37h 23m

2 stops

SDF20:28Louisville Intl

£468

United Airlines

18 Feb

SDF10:45Louisville Intl

15h 25m

2 stops

LHR07:10London Heathrow

25 Feb

LHR06:50London Heathrow

17h 52m

2 stops

SDF19:42Louisville Intl

£471

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/3

16:59-12:00

1 stop14h 01m

London Heathrow

Wed 11/3

06:15-21:26

2 stops19h 11m

£430

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 16/2

06:10-06:55

1 stop19h 45m

London Heathrow

Mon 23/2

16:30-21:11

2 stops33h 41m

£438

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 8/4

12:15-11:15

1 stop18h 00m

London Heathrow

Mon 13/4

19:25-21:28

2 stops31h 03m

£440

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 17/2

14:11-10:00

1 stop14h 49m

London Heathrow

Tue 24/2

08:20-20:14

1 stop16h 54m

£445

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/2

14:01-10:00

1 stop14h 59m

London Heathrow

Tue 31/3

08:55-20:14

1 stop16h 19m

£445

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Fri 6/3

05:00-07:30

2 stops21h 30m

London Gatwick

Fri 13/3

11:20-10:58

2 stops27h 38m

£462

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Tue 17/2

14:35-09:15

2 stops13h 40m

London City

Tue 24/2

09:50-19:56

2 stops15h 06m

£484

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Thu 5/3

14:26-10:00

2 stops38h 34m

London Gatwick

Thu 12/3

14:00-11:08

1 stop25h 08m

£494

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Wed 18/2

13:50-09:05

2 stops14h 15m

London City

Wed 25/2

09:50-19:55

2 stops15h 05m

£509

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Sat 9/5

20:31-10:00

1 stop32h 29m

London Gatwick

Tue 12/5

14:00-11:38

1 stop26h 38m

£522

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 October. Flight prices, which tend to average around £520, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Louisville averaging around £522.

How far in advance should I book a flight 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 £667 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 £511 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	10h 27m
Direct flights	None

The fastest flight from Louisville to London takes 10h 27m

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

Search flight deals

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 27m.
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.

Eastbourne

Luton

Milton Keynes

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

Dover

Bedford

Worthing

Ramsgate

Colchester

Folkestone

Winchester

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.