What are the cheapest airlines flying from Louisville to London round-trip?

According to our current data, Delta (£451), British Airways (£463), and KLM (£478) offers the cheapest pricing from Louisville to London. Delta is currently priced 38% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Louisville to London one-way?

The cheapest airline one-way is Finnair, with whom users have recently found tickets for as low as £313. However, be on the lookout for offers from United Airlines and Air Canada, as they are both options that can get you from Louisville to London for a low price.

What is the cheapest day to fly from Louisville to London?

Travellers seeking maximum savings on their Louisville to London flight should consider departing on Wednesday at midday when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Louisville to London?

The most popular route from Louisville to London is Louisville Intl - London Heathrow. You may also consider Louisville Intl - London Gatwick or Louisville Intl - London City.

What is the cheapest day to fly round-trip from Louisville to London?

Travelers have found that booking a Monday departure is the best way to save up to 63% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Louisville to London?

To save on the cost of your flight from Louisville to London, book at least 14 days before your planned departure. Booking around this time can save you about 89% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £469 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £887.

What is the cheapest month to fly from Louisville to London?

Our data shows that October tends to be the cheapest month to fly to London from Louisville. Users have commonly found prices around £728 for the month, but tickets can be as low as £443. Due to multiple factors, prepare for potentially higher prices in December.

What airport do you fly from for flights from Louisville to London?

For a flight from Louisville to London, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 outbound flights to London per day. 2 airlines have flights to London from Louisville Intl on a regular basis.

Can I find deals for flights from Louisville to London that include hotel bookings?

Yes. In addition to deals on Louisville to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Louisville to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to London.

Can I find deals for business class flights from Louisville to London?

Yes. Cheapflights offers flight deals from Louisville to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£313+ Flights from Louisville to London

Cheapflights Tip: The best prices from Louisville Intl to London are usually found in October or September, booked 74 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Louisville to London

Round-trip from	£451
One-way from	£313
Popular in	December
Cheapest in	October
Average price	£813

Delta
19/8-26/8
4 total stops
33h 11m total
Louisville to London

Search Deals

Finnair
23/8
1 total stop
13h 42m total
Louisville to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£116 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

Find flight deals from Louisville to London

Cheapest flights from Louisville to London
Explore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 May 2025.

Tue 19/812:45SDF - LGW

2 stops16h 15mDelta

Tue 26/812:00LGW - SDF

2 stops16h 56mDelta

Deal found 27/5£451

Tue 2/914:46SDF - LHR

1 stop15h 09mBritish Airways

Thu 11/911:30LHR - SDF

2 stops16h 33mBritish Airways

Deal found 27/5£463

Sat 18/1009:06SDF - LGW

1 stop19h 54mMultiple Airlines

Fri 31/1014:00LGW - SDF

1 stop22h 11mMultiple Airlines

Deal found 26/5£467

Tue 2/908:10SDF - LHR

1 stop17h 35mDelta

Thu 11/906:15LHR - SDF

2 stops16h 24mDelta

Deal found 26/5£471

Tue 2/913:59SDF - LHR

2 stops14h 36mUnited Airlines

Thu 11/908:30LHR - SDF

2 stops17h 32mUnited Airlines

Deal found 26/5£495

Tue 2/909:05SDF - LHR

2 stops19h 30mAir Canada

Fri 12/914:05LHR - SDF

2 stops29h 45mAir Canada

Deal found 26/5£498

Mon 8/912:25SDF - LGW

2 stops16h 45mBritish Airways

Sun 28/910:40LGW - SDF

2 stops17h 23mBritish Airways

Deal found 26/5£505

Sat 16/818:10SDF - LHR

2 stops18h 05mIberia

Tue 26/818:45LHR - SDF

2 stops33h 16mIberia

Deal found 27/5£518

Mon 13/1014:59SDF - LHR

2 stops20h 01mScandinavian Airlines

Wed 22/1006:40LHR - SDF

2 stops22h 16mScandinavian Airlines

Deal found 28/5£524

Tue 10/612:58SDF - LHR

2 stops26h 22mMultiple Airlines

Sun 15/615:05LHR - SDF

2 stops30h 27mMultiple Airlines

Deal found 27/5£544

Tue 14/1009:55SDF - LCY

2 stops17h 15mLufthansa

Tue 21/1008:45LCY - SDF

2 stops19h 15mLufthansa

Deal found 27/5£544

Mon 18/812:48SDF - LHR

2 stops15h 52mLufthansa

Mon 25/809:30LHR - SDF

2 stops16h 32mLufthansa

Deal found 27/5£563

Best flights from Louisville to London
Discover carefully curated flight deals from Louisville to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 May 2025.

Tue 19/812:45SDF - LGW

2 stops16h 15mDelta

Tue 26/812:00LGW - SDF

2 stops16h 56mDelta

Deal found 27/5£451

Tue 2/914:46SDF - LHR

1 stop15h 09mBritish Airways

Thu 11/911:30LHR - SDF

2 stops16h 33mBritish Airways

Deal found 27/5£463

Sat 18/1009:06SDF - LGW

1 stop19h 54mMultiple Airlines

Fri 31/1014:00LGW - SDF

1 stop22h 11mMultiple Airlines

Deal found 26/5£467

Mon 1/918:00SDF - LHR

1 stop14h 30mKLM

Wed 10/909:20LHR - SDF

1 stop12h 30mKLM

Deal found 26/5£478

Tue 2/913:59SDF - LHR

2 stops14h 36mUnited Airlines

Thu 11/908:30LHR - SDF

2 stops17h 32mUnited Airlines

Deal found 26/5£495

Tue 2/909:05SDF - LHR

2 stops19h 30mAir Canada

Fri 12/914:05LHR - SDF

2 stops29h 45mAir Canada

Deal found 26/5£498

Sat 16/818:10SDF - LHR

2 stops18h 05mIberia

Tue 26/818:45LHR - SDF

2 stops33h 16mIberia

Deal found 27/5£518

Mon 13/1014:59SDF - LHR

2 stops20h 01mScandinavian Airlines

Wed 22/1006:40LHR - SDF

2 stops22h 16mScandinavian Airlines

Deal found 28/5£524

Tue 14/1009:55SDF - LCY

2 stops17h 15mLufthansa

Tue 21/1008:45LCY - SDF

2 stops19h 15mLufthansa

Deal found 27/5£544

Sat 30/814:18SDF - LHR

1 stop35h 07mFinnair

Thu 11/908:20LHR - SDF

1 stop17h 29mFinnair

Deal found 26/5£733

Mon 21/718:50SDF - LCY

2 stops21h 50mAer Lingus

Mon 28/720:30LCY - SDF

2 stops26h 50mAer Lingus

Deal found 27/5£768

Thu 24/716:00SDF - LHR

1 stop10h 20mAmerican Airlines

Sat 2/815:00LHR - SDF

1 stop12h 06mAmerican Airlines

Deal found 28/5£800

Last-minute flights from Louisville to London
Discover last-minute flight deals from Louisville to London. Data last updated 29 May 2025 and is based on user searches.

Fri 6/609:55SDF - LGW

3 stops27h 05mMultiple Airlines

Fri 13/610:55LGW - SDF

1 stop33h 27mMultiple Airlines

Deal found 27/5£483

Fri 6/609:55SDF - LHR

2 stops15h 35mMultiple Airlines

Fri 13/612:10LHR - SDF

3 stops33h 29mMultiple Airlines

Deal found 27/5£606

Fri 6/608:55SDF - LHR

2 stops16h 35mUnited Airlines

Thu 19/608:30LHR - SDF

2 stops16h 16mUnited Airlines

Deal found 27/5£949

Fri 6/614:59SDF - LHR

2 stops37h 21mScandinavian Airlines

Thu 19/606:40LHR - SDF

2 stops19h 33mScandinavian Airlines

Deal found 28/5£956

Fri 6/614:34SDF - LHR

1 stop11h 46mBritish Airways

Fri 13/609:15LHR - SDF

1 stop13h 56mBritish Airways

Deal found 27/5£968

Fri 6/620:00SDF - LHR

1 stop12h 30mKLM

Thu 19/613:05LHR - SDF

1 stop13h 08mKLM

Deal found 27/5£969

Fri 6/612:40SDF - LGW

2 stops16h 20mDelta

Thu 19/612:00LGW - SDF

2 stops17h 31mDelta

Deal found 28/5£1,104

Tue 10/612:58SDF - LHR

2 stops26h 22mMultiple Airlines

Sun 15/615:05LHR - SDF

2 stops30h 27mMultiple Airlines

Deal found 27/5£544

Tue 10/619:14SDF - LGW

3 stops33h 11mWestJet

Thu 19/610:45LGW - SDF

3 stops33h 06mWestJet

Deal found 28/5£1,049

Wed 11/616:00SDF - LHR

1 stop16h 10mDelta

Thu 11/906:15LHR - SDF

2 stops16h 24mDelta

Deal found 27/5£860

Wed 11/614:05SDF - LHR

1 stop11h 15mUnited Airlines

Thu 11/907:30LHR - SDF

2 stops17h 43mUnited Airlines

Deal found 27/5£866

Wed 11/618:41SDF - LCY

2 stops33h 24mAer Lingus

Thu 11/906:45LCY - SDF

2 stops21h 18mAer Lingus

Deal found 27/5£1,030

One-way flights from Louisville to London
Search for one-way flight options from Louisville to London. Find affordable one-way fares based on user searches. Data last updated 29 May 2025.

Sat 23/814:18SDF - LHR

1 stop13h 42mFinnair

Deal found 27/5£313

Sat 23/814:20SDF - LHR

2 stops35h 10mUnited Airlines

Deal found 27/5£325

Sat 23/809:05SDF - LHR

3 stops16h 25mAir Canada

Deal found 27/5£358

Mon 2/609:55SDF - LGW

2 stops18h 50mMultiple Airlines

Deal found 27/5£358

Mon 2/609:55SDF - LHR

2 stops19h 25mMultiple Airlines

Deal found 27/5£359

Mon 2/609:55SDF - LCY

2 stops26h 20mMultiple Airlines

Deal found 27/5£517

Wed 4/611:51SDF - LHR

2 stops14h 59mBritish Airways

Deal found 27/5£573

Tue 17/612:53SDF - LGW

2 stops16h 07mDelta

Deal found 27/5£599

Tue 17/618:00SDF - LCY

2 stops17h 25mLufthansa

Deal found 27/5£630

Mon 2/609:55SDF - SEN

3 stops22h 35mMultiple Airlines

Deal found 27/5£658

Tue 17/607:00SDF - LCY

2 stops20h 30mAer Lingus

Deal found 28/5£759

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Tue 19/8

12:45-10:00

2 stops16h 15m

London Gatwick

Tue 26/8

12:00-23:56

2 stops16h 56m

£451

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 2/9

14:46-10:55

1 stop15h 09m

London Heathrow

Thu 11/9

11:30-23:03

2 stops16h 33m

£463

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Sat 18/10

09:06-10:00

1 stop19h 54m

London Gatwick

Fri 31/10

14:00-08:11

1 stop22h 11m

£467

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 2/9

08:10-06:45

1 stop17h 35m

London Heathrow

Thu 11/9

06:15-17:39

2 stops16h 24m

£471

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 2/9

13:59-09:35

2 stops14h 36m

London Heathrow

Thu 11/9

08:30-21:02

2 stops17h 32m

£495

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 2/9

09:05-09:35

2 stops19h 30m

London Heathrow

Fri 12/9

14:05-14:50

2 stops29h 45m

£498

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 8/9

12:25-10:10

2 stops16h 45m

London Gatwick

Sun 28/9

10:40-23:03

2 stops17h 23m

£505

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sat 16/8

18:10-17:15

2 stops18h 05m

London Heathrow

Tue 26/8

18:45-23:01

2 stops33h 16m

£518

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 13/10

14:59-16:00

2 stops20h 01m

London Heathrow

Wed 22/10

06:40-23:56

2 stops22h 16m

£524

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Tue 14/10

09:55-08:10

2 stops17h 15m

London City

Tue 21/10

08:45-23:00

2 stops19h 15m

£544

Flights are sorted by cheapest return flights first.

Deals found on 27/5

Showing 1-10 of 33 results

Best time to book a flight from Louisville to London

Have a flexible travel schedule? Discover the best time to fly to London from Louisville with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Louisville to London

How far ahead should I book a flight from Louisville to London?

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Louisville to London?

Currently, January is the cheapest month in which you can book a flight from Louisville to London (average of £112). Flying from Louisville to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SDF to LON?

It’s typically best to fly out from Louisville to London at midday. Doing so could potentially save you 34% on the flight price compared to flying in the afternoon, which is usually more expensive.

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Read through reviews of airlines operating flights from Louisville to London, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,957 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,957 reviews

Delta

8.0

Very Good

7,957 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,351 reviews

Delta

8.0

Very Good

7,957 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Finnair

7.6

Good

1,285 reviews

Delta

8.0

Very Good

7,957 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,756 reviews

Delta

8.0

Very Good

7,957 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Scandinavian Airlines

7.3

Good

1,375 reviews

Delta

8.0

Very Good

7,957 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Louisville to London?
For a flight from Louisville to London, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 outbound flights to London per day. 2 airlines have flights to London from Louisville Intl on a regular basis.
What are the cheapest airlines flying from Louisville to London round-trip?
According to our current data, Delta (£451), British Airways (£463), and KLM (£478) offers the cheapest pricing from Louisville to London. Delta is currently priced 38% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Louisville to London one-way?
The cheapest airline one-way is Finnair, with whom users have recently found tickets for as low as £313. However, be on the lookout for offers from United Airlines and Air Canada, as they are both options that can get you from Louisville to London for a low price.
What are the most popular routes from Louisville to London?
The most popular route from Louisville to London is Louisville Intl - London Heathrow. You may also consider Louisville Intl - London Gatwick or Louisville Intl - London City.
Can I find deals for flights from Louisville to London that include hotel bookings?
Yes. In addition to deals on Louisville to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Louisville to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to London.
Can I find deals for business class flights from Louisville to London?
Yes. Cheapflights offers flight deals from Louisville to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Louisville to London?
Currently, January is the cheapest month in which you can book a flight from Louisville to London (average of £112). Flying from Louisville to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Deal

Hounslow

Milton Keynes

Croydon

Luton

Gatwick

Slough

Wembley

Crawley

Eastbourne

Ilford

Southend-on-Sea

Watford

Hayes

Ipswich

Folkestone

Winchester

Maidstone

Dartford

Guildford

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Louisville to London

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£535	Average£760	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
American Airlines	Cheapest£727	Average£833	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Louisville to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Louisville to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Louisville to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Louisville to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Louisville to London with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Louisville to London flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Louisville to London become cheaper?

Yes! Start tracking prices for Louisville to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Louisville to London from £313

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Louisville Intl to London are usually found in October or September, booked 74 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Louisville to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Louisville to London

Cheapest flights from Louisville to LondonExplore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 May 2025.

Explore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 May 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to London that are best for you.

Best time to book a flight from Louisville to London

Have a flexible travel schedule? Discover the best time to fly to London from Louisville with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Louisville to London

How far ahead should I book a flight from Louisville to London?

Use this chart to determine the optimal time to book a return flight from Louisville to London. Price data was last updated on 23 May 2025.

What is the cheapest month to book a flight from Louisville to London?

What is the cheapest time of day to fly from SDF to LON?

Find hourly flight availability from Louisville to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 May 2025.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 29 May 2025.

Read through reviews of airlines operating flights from Louisville to London, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Louisville to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Louisville to London?

What are the cheapest airlines flying from Louisville to London round-trip?

What are the cheapest airlines to fly from Louisville to London one-way?

What are the most popular routes from Louisville to London?

Can I find deals for flights from Louisville to London that include hotel bookings?

How can I find direct flights from Louisville to London?

Can I find deals for business class flights from Louisville to London?

What is the cheapest month to book a flight from Louisville to London?

Travelling to a place near Louisville?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Louisville to London

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Louisville to London?

Why should you use Cheapflights to find cheap flight tickets from Louisville to London?

Can Cheapflights find flights from Louisville to London with no change fees?

Can Cheapflights notify me if prices for flights from Louisville to London become cheaper?

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Cheapest flights from Louisville to London
Explore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 May 2025.