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

British Airways, Iberia, and Aer Lingus are the most popular carriers operating from Louisville Intl to London

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.

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.

£185 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 £556 to £849. The lowest price recently found on this route was £441.

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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.

12:15 - 11:15

SDF

LHR

18h 00m

1 stop

19:25 - 21:28

LHR

SDF

31h 03m

2 stops

£441British Airways

Wed, 8 Apr - Mon, 13 Apr

16:33 - 08:00

SDF

LHR

10h 27m

1 stop

19:25 - 21:28

LHR

SDF

31h 03m

2 stops

£441British Airways

Wed, 8 Apr - Mon, 13 Apr

12:07 - 10:25

SDF

LHR

17h 18m

1 stop

06:15 - 23:16

LHR

SDF

22h 01m

2 stops

£447Multiple Airlines

Wed, 18 Feb - Wed, 25 Feb

18:12 - 11:35

SDF

LHR

12h 23m

1 stop

14:45 - 00:13

LHR

SDF

14h 28m

1 stop

£450British Airways

Wed, 18 Feb - Wed, 25 Feb

18:50 - 12:00

SDF

LHR

12h 10m

1 stop

11:45 - 22:40

LHR

SDF

14h 55m

1 stop

£450British Airways

Tue, 3 Mar - Thu, 12 Mar

14:01 - 10:00

SDF

LHR

14h 59m

1 stop

08:20 - 22:38

LHR

SDF

19h 18m

1 stop

£453Finnair

Wed, 18 Feb - Wed, 25 Feb

12:07 - 14:05

SDF

LCY

20h 58m

2 stops

07:50 - 21:26

LCY

SDF

17h 36m

2 stops

£461Iberia

Tue, 3 Mar - Thu, 12 Mar

12:07 - 12:05

SDF

LHR

18h 58m

2 stops

12:35 - 21:26

LHR

SDF

12h 51m

1 stop

£463Iberia

Tue, 3 Mar - Thu, 12 Mar

05:00 - 07:30

SDF

LGW

21h 30m

2 stops

11:20 - 10:58

LGW

SDF

27h 38m

2 stops

£463American Airlines

Fri, 6 Mar - Fri, 13 Mar

09:41 - 10:00

SDF

LGW

19h 19m

1 stop

14:00 - 15:36

LGW

SDF

30h 36m

1 stop

£664Multiple Airlines

Sun, 24 May - Wed, 3 Jun

British Airways flights from Louisville to London

Our best British Airways deals on Louisville to London flight tickets

British Airways

8 Apr

SDF12:15Louisville Intl

18h 00m

1 stop

LHR11:15London Heathrow

13 Apr

LHR19:25London Heathrow

31h 03m

2 stops

SDF21:28Louisville Intl

£441

British Airways

8 Apr

SDF16:33Louisville Intl

10h 27m

1 stop

LHR08:00London Heathrow

13 Apr

LHR19:25London Heathrow

31h 03m

2 stops

SDF21:28Louisville Intl

£441

British Airways

18 Feb

SDF18:12Louisville Intl

12h 23m

1 stop

LHR11:35London Heathrow

25 Feb

LHR14:45London Heathrow

14h 28m

1 stop

SDF00:13Louisville Intl

£450

United Airlines flights from Louisville to London

Our best United Airlines deals on Louisville to London flight tickets

United Airlines

3 Feb

SDF18:12Louisville Intl

12h 03m

1 stop

LHR11:15London Heathrow

9 Feb

LHR13:45London Heathrow

35h 43m

2 stops

SDF20:28Louisville Intl

£469

United Airlines

18 Feb

SDF10:45Louisville Intl

15h 25m

2 stops

LHR07:10London Heathrow

25 Feb

LHR06:50London Heathrow

18h 19m

2 stops

SDF20:09Louisville Intl

£471

United Airlines

6 Mar

SDF07:05Louisville Intl

23h 15m

2 stops

LHR11:20London Heathrow

13 Mar

LHR06:50London Heathrow

16h 41m

2 stops

SDF19:31Louisville Intl

£474

Fly from

Fly to

Route

Depart

Return

Price

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

£441

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 8/4

16:33-08:00

1 stop10h 27m

London Heathrow

Mon 13/4

19:25-21:28

2 stops31h 03m

£441

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/2

12:07-10:25

1 stop17h 18m

London Heathrow

Wed 25/2

06:15-23:16

2 stops22h 01m

£447

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/2

18:12-11:35

1 stop12h 23m

London Heathrow

Wed 25/2

14:45-00:13

1 stop14h 28m

£450

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 3/3

18:50-12:00

1 stop12h 10m

London Heathrow

Thu 12/3

11:45-22:40

1 stop14h 55m

£450

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/2

14:01-10:00

1 stop14h 59m

London Heathrow

Wed 25/2

08:20-22:38

1 stop19h 18m

£453

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Tue 3/3

12:07-14:05

2 stops20h 58m

London City

Thu 12/3

07:50-21:26

2 stops17h 36m

£461

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 3/3

12:07-12:05

2 stops18h 58m

London Heathrow

Thu 12/3

12:35-21:26

1 stop12h 51m

£463

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

£463

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Sun 24/5

09:41-10:00

1 stop19h 19m

London Gatwick

Wed 3/6

14:00-15:36

1 stop30h 36m

£664

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 £523.

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 £668 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 11m
Direct flights	None

The fastest flight from Louisville to London takes 10h 11m

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 11m.
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.