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

British Airways, Aer Lingus, and Iberia 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.

£161 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 £554 to £784. The lowest price recently found on this route was £456.

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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.

17:54 - 19:35

SDF

LHR

20h 41m

2 stops

09:30 - 23:59

LHR

SDF

18h 29m

2 stops

£456Lufthansa

Mon, 2 Mar - Mon, 9 Mar

07:40 - 08:35

SDF

LHR

19h 55m

1 stop

07:35 - 23:20

LHR

SDF

19h 45m

2 stops

£463British Airways

Tue, 3 Mar - Wed, 18 Mar

06:00 - 07:30

SDF

LHR

20h 30m

1 stop

06:50 - 19:14

LHR

SDF

17h 24m

2 stops

£464United Airlines

Sun, 1 Mar - Sun, 8 Mar

13:50 - 20:35

SDF

LHR

49h 45m

2 stops

08:30 - 23:59

LHR

SDF

19h 29m

2 stops

£465Multiple Airlines

Tue, 3 Mar - Wed, 18 Mar

10:45 - 07:10

SDF

LHR

15h 25m

2 stops

06:50 - 19:31

LHR

SDF

16h 41m

2 stops

£466United Airlines

Tue, 3 Mar - Wed, 18 Mar

08:15 - 20:35

SDF

LHR

32h 20m

2 stops

13:25 - 22:13

LHR

SDF

36h 48m

2 stops

£470Air Canada

Wed, 18 Mar - Wed, 25 Mar

09:00 - 05:55

SDF

LHR

16h 55m

1 stop

08:30 - 22:13

LHR

SDF

17h 43m

2 stops

£472United Airlines

Wed, 18 Mar - Wed, 25 Mar

07:37 - 06:20

SDF

LHR

17h 43m

1 stop

19:25 - 21:28

LHR

SDF

31h 03m

2 stops

£474British Airways

Wed, 8 Apr - Mon, 13 Apr

07:20 - 06:30

SDF

LHR

18h 10m

2 stops

19:10 - 22:30

LHR

SDF

32h 20m

2 stops

£480Multiple Airlines

Sun, 26 Apr - Mon, 18 May

12:07 - 14:05

SDF

LCY

20h 58m

2 stops

07:50 - 21:26

LCY

SDF

17h 36m

2 stops

£518Iberia

Tue, 3 Mar - Wed, 18 Mar

Delta flights from Louisville to London

Our best Delta deals on Louisville to London flight tickets

Delta

20 Apr

SDF15:17Louisville Intl

14h 03m

2 stops

LHR10:20London Heathrow

30 Apr

LHR15:15London Heathrow

24h 09m

1 stop

SDF10:24Louisville Intl

£504

Delta

8 Feb

SDF12:22Louisville Intl

13h 03m

1 stop

LHR06:25London Heathrow

24 Feb

LHR11:45London Heathrow

14h 33m

2 stops

SDF21:18Louisville Intl

£511

Delta

8 Feb

SDF15:32Louisville Intl

11h 18m

1 stop

LHR07:50London Heathrow

19 Feb

LHR10:45London Heathrow

14h 43m

1 stop

SDF20:28Louisville Intl

£532

Air Canada flights from Louisville to London

Our best Air Canada deals on Louisville to London flight tickets

Air Canada

18 Mar

SDF08:15Louisville Intl

32h 20m

2 stops

LHR20:35London Heathrow

25 Mar

LHR13:25London Heathrow

36h 48m

2 stops

SDF22:13Louisville Intl

£470

Air Canada

9 Feb

SDF08:30Louisville Intl

17h 40m

2 stops

LHR07:10London Heathrow

24 Feb

LHR13:25London Heathrow

35h 30m

2 stops

SDF19:55Louisville Intl

£519

Air Canada

8 Feb

SDF11:10Louisville Intl

17h 10m

2 stops

LHR09:20London Heathrow

19 Feb

LHR18:00London Heathrow

33h 13m

2 stops

SDF22:13Louisville Intl

£520

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 2/3

17:54-19:35

2 stops20h 41m

London Heathrow

Mon 9/3

09:30-23:59

2 stops18h 29m

£456

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 3/3

07:40-08:35

1 stop19h 55m

London Heathrow

Wed 18/3

07:35-23:20

2 stops19h 45m

£463

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 1/3

06:00-07:30

1 stop20h 30m

London Heathrow

Sun 8/3

06:50-19:14

2 stops17h 24m

£464

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 3/3

13:50-20:35

2 stops49h 45m

London Heathrow

Wed 18/3

08:30-23:59

2 stops19h 29m

£465

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 3/3

10:45-07:10

2 stops15h 25m

London Heathrow

Wed 18/3

06:50-19:31

2 stops16h 41m

£466

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/3

08:15-20:35

2 stops32h 20m

London Heathrow

Wed 25/3

13:25-22:13

2 stops36h 48m

£470

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/3

09:00-05:55

1 stop16h 55m

London Heathrow

Wed 25/3

08:30-22:13

2 stops17h 43m

£472

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 8/4

07:37-06:20

1 stop17h 43m

London Heathrow

Mon 13/4

19:25-21:28

2 stops31h 03m

£474

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 26/4

07:20-06:30

2 stops18h 10m

London Heathrow

Mon 18/5

19:10-22:30

2 stops32h 20m

£480

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Tue 3/3

12:07-14:05

2 stops20h 58m

London City

Wed 18/3

07:50-21:26

2 stops17h 36m

£518

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 £508, 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 £516.

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 £655 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 £501 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

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

Dover

Folkestone

Bedford

Colchester

Wembley

Worthing

Ramsgate

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.