Which airlines fly to London?

British Airways, Virgin Atlantic and Iberia 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 38% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 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?

Air Canada, United Airlines, and KLM 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 many operators does momondo search for flights from Louisville Intl Airport to London?

There are 2 operators available for flights from Louisville Intl Airport to London as of August 2025.

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.

£177 Cheap Flights from Louisville to London (SDF-LON) in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Louisville to London (SDF-LON)

Round-trip

One-way

Last minute

Cheap return flights

12:45 - 13:30SDF-LHR

19h 45m1 stop

06:30 - 17:05LHR-SDF

15h 35m2 stops

£385Virgin Atlantic

Find Deal

Mon, 1 Sep - Tue, 16 Sep

12:45 - 13:30SDF-LHR

19h 45m1 stop

11:45 - 21:16LHR-SDF

14h 31m1 stop

£390Virgin Atlantic

Find Deal

Mon, 1 Sep - Tue, 16 Sep

16:20 - 10:30SDF-LHR

13h 10m1 stop

11:30 - 22:46LHR-SDF

16h 16m2 stops

£422Delta

Find Deal

Tue, 2 Sep - Thu, 11 Sep

09:34 - 06:45SDF-LHR

16h 11m1 stop

06:20 - 21:15LHR-SDF

18h 55m2 stops

£423Delta

Find Deal

Wed, 22 Oct - Fri, 31 Oct

19:15 - 13:10SDF-LHR

12h 55m1 stop

12:30 - 22:34LHR-SDF

14h 04m1 stop

£429KLM

Find Deal

Wed, 22 Oct - Fri, 31 Oct

07:49 - 10:00SDF-LGW

21h 11m1 stop

14:00 - 22:47LGW-SDF

36h 47m1 stop

£444

Find Deal

Thu, 23 Oct - Thu, 30 Oct

07:49 - 10:00SDF-LGW

21h 11m1 stop

14:00 - 22:47LGW-SDF

36h 47m1 stop

£461

Find Deal

Thu, 23 Oct - Fri, 31 Oct

17:51 - 11:10SDF-LHR

12h 19m1 stop

15:15 - 23:52LHR-SDF

13h 37m1 stop

£465KLM

Find Deal

Sun, 7 Sep - Mon, 15 Sep

15:09 - 21:40SDF-LHR

25h 31m2 stops

06:40 - 23:52LHR-SDF

22h 12m2 stops

£501Scandinavian Airlines

Find Deal

Mon, 22 Sep - Wed, 1 Oct

15:09 - 17:40SDF-LHR

21h 31m2 stops

06:40 - 23:52LHR-SDF

22h 12m2 stops

£501Scandinavian Airlines

Find Deal

Mon, 22 Sep - Wed, 1 Oct

Virgin Atlantic flights from Louisville to London

Our best Virgin Atlantic deals on Louisville to London flight tickets

Virgin Atlantic

1 Sept

SDF12:45Louisville Intl

19h 45m

1 stop

LHR13:30London Heathrow

16 Sept

LHR06:30London Heathrow

15h 35m

2 stops

SDF17:05Louisville Intl

£385

Find similar

Virgin Atlantic

1 Sept

SDF12:45Louisville Intl

19h 45m

1 stop

LHR13:30London Heathrow

16 Sept

LHR11:45London Heathrow

14h 31m

1 stop

SDF21:16Louisville Intl

£390

Find similar

Virgin Atlantic

17 Nov

SDF13:20Louisville Intl

12h 45m

1 stop

LHR07:05London Heathrow

24 Nov

LHR19:20London Heathrow

28h 41m

2 stops

SDF19:01Louisville Intl

£444

Find similar

Delta flights from Louisville to London

Our best Delta deals on Louisville to London flight tickets

Delta

2 Sept

SDF16:20Louisville Intl

13h 10m

1 stop

LHR10:30London Heathrow

11 Sept

LHR11:30London Heathrow

16h 16m

2 stops

SDF22:46Louisville Intl

£422

Find similar

Delta

22 Oct

SDF09:34Louisville Intl

16h 11m

1 stop

LHR06:45London Heathrow

31 Oct

LHR06:20London Heathrow

18h 55m

2 stops

SDF21:15Louisville Intl

£423

Find similar

Delta

22 Sept

SDF16:18Louisville Intl

10h 47m

1 stop

LHR08:05London Heathrow

1 Oct

LHR08:40London Heathrow

17h 33m

2 stops

SDF21:13Louisville Intl

£423

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 1/9

12:45-13:30

1 stop19h 45m

London Heathrow

Tue 16/9

06:30-17:05

2 stops15h 35m

£385

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 1/9

12:45-13:30

1 stop19h 45m

London Heathrow

Tue 16/9

11:45-21:16

1 stop14h 31m

£390

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 2/9

16:20-10:30

1 stop13h 10m

London Heathrow

Thu 11/9

11:30-22:46

2 stops16h 16m

£422

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 22/10

09:34-06:45

1 stop16h 11m

London Heathrow

Fri 31/10

06:20-21:15

2 stops18h 55m

£423

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 22/10

19:15-13:10

1 stop12h 55m

London Heathrow

Fri 31/10

12:30-22:34

1 stop14h 04m

£429

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Thu 23/10

07:49-10:00

1 stop21h 11m

London Gatwick

Thu 30/10

14:00-22:47

1 stop36h 47m

£444

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Thu 23/10

07:49-10:00

1 stop21h 11m

London Gatwick

Fri 31/10

14:00-22:47

1 stop36h 47m

£461

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 7/9

17:51-11:10

1 stop12h 19m

London Heathrow

Mon 15/9

15:15-23:52

1 stop13h 37m

£465

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 22/9

15:09-21:40

2 stops25h 31m

London Heathrow

Wed 1/10

06:40-23:52

2 stops22h 12m

£501

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 22/9

15:09-17:40

2 stops21h 31m

London Heathrow

Wed 1/10

06:40-23:52

2 stops22h 12m

£501

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 cheapest month to fly to London?

The cheapest month to fly to London from Louisville is in August. Flight prices, which tend to average around £522, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Louisville averaging around £525.

What is the cheapest day to depart on your flight to London?

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £509. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Louisville to London for around £832.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £555. Flights in the afternoon are often more expensive, with an average ticket price of £829.

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 £730 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 £609 on momondo.

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

Direct flights	None

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 9h 50m.
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 many operators does momondo search for flights from Louisville Intl Airport to London?
There are 2 operators available for flights from Louisville Intl Airport to London as of August 2025.
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 Virgin Atlantic, making up 100% of the total bookings.

Best airlines flying from Louisville to London

Compare and see reviews for airlines that fly from Louisville to London with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom £537	Free Cancellation	Rating 7.4 658 reviews		Search Virgin Atlantic flights
American Airlines	PriceFrom £554	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

Eastbourne

Milton Keynes

Luton

Maidstone

Slough

Gatwick

Canterbury

Southend-on-Sea

Ipswich

Ilford

Guildford

Colchester

Worthing

Dartford

Hounslow

Dover

Chelmsford

Hayes

Folkestone

Bedford

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.