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$311+ Cheap flights from Louisville (SDF) to London (LON)

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LON
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to London are usually found in August or October, booked 74 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Louisville to London

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 18, 2025.

Round-trip from

$524
(Norse)

One-way from

$311
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$702
From Louisville Intl to London (LON)
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One-way flight from Louisville Intl to London (LON)
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Highest demand for flights based on searches. 18% potential increase in price ($224 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 agosto 18, 2025.

This Norse deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1010:14 amSDF - LGW
1 stop18h 46mMultiple Airlines
lun. 9/152:00 pmLGW - SDF
1 stop24h 19mMultiple Airlines
Deal found 8/18$533
This Norse deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1710:14 amSDF - LGW
1 stop18h 46mMultiple Airlines
mié. 9/242:00 pmLGW - SDF
1 stop24h 19mMultiple Airlines
Deal found 8/18$557
This Norse deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/910:14 amSDF - LGW
1 stop18h 46mMultiple Airlines
jue. 9/112:00 pmLGW - SDF
1 stop24h 19mMultiple Airlines
Deal found 8/18$568
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/216:34 pmSDF - LGW
1 stop33h 56mMultiple Airlines
mié. 9/242:00 pmLGW - SDF
1 stop24h 19mMultiple Airlines
Deal found 8/17$592
This Norse deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1710:14 amSDF - LGW
1 stop18h 46mMultiple Airlines
vie. 9/262:00 pmLGW - SDF
1 stop24h 19mMultiple Airlines
Deal found 8/18$597
This Norse deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/2110:14 amSDF - LGW
1 stop18h 56mMultiple Airlines
vie. 9/262:00 pmLGW - SDF
1 stop24h 19mMultiple Airlines
Deal found 8/16$621
This Norse deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/1510:14 amSDF - LGW
1 stop18h 46mMultiple Airlines
lun. 9/222:00 pmLGW - SDF
1 stop24h 19mMultiple Airlines
Deal found 8/16$623
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/2010:14 amSDF - LGW
1 stop18h 46mMultiple Airlines
mié. 9/242:00 pmLGW - SDF
1 stop24h 19mMultiple Airlines
Deal found 8/16$650
This Mytrip deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/2310:14 amSDF - LGW
3 stops24h 21mMultiple Airlines
mié. 10/82:00 pmLGW - SDF
1 stop13h 47mMultiple Airlines
Deal found 8/17$653
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/229:05 amSDF - LHR
1 stop16h 15mUnited Airlines
mié. 10/12:05 pmLHR - SDF
2 stops32h 08mUnited Airlines
Deal found 8/18$673
This Mytrip deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/1410:55 amSDF - LHR
2 stops19h 55mAir Canada
vie. 9/269:30 amLHR - SDF
2 stops43h 00mAir Canada
Deal found 8/17$680
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/239:05 amSDF - LHR
2 stops16h 25mUnited Airlines
mié. 10/87:25 amLHR - SDF
2 stops16h 08mUnited Airlines
Deal found 8/17$681

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 18, 2025.
Use the filters below to find and compare flights from Louisville to London that are best for you.

Fly from

Louisville

Fly to

London

Route

Depart

Return

Price

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

mié. 9/10

10:14 am-10:00 am

1 stop18h 46m

London Gatwick

lun. 9/15

2:00 pm-9:19 am

1 stop24h 19m

$533

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

mié. 9/17

10:14 am-10:00 am

1 stop18h 46m

London Gatwick

mié. 9/24

2:00 pm-9:19 am

1 stop24h 19m

$557

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

mar. 9/9

10:14 am-10:00 am

1 stop18h 46m

London Gatwick

jue. 9/11

2:00 pm-9:19 am

1 stop24h 19m

$568

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

dom. 9/21

6:34 pm-9:30 am

1 stop33h 56m

London Gatwick

mié. 9/24

2:00 pm-9:19 am

1 stop24h 19m

$592

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

mié. 9/17

10:14 am-10:00 am

1 stop18h 46m

London Gatwick

vie. 9/26

2:00 pm-9:19 am

1 stop24h 19m

$597

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

dom. 9/21

10:14 am-10:10 am

1 stop18h 56m

London Gatwick

vie. 9/26

2:00 pm-9:19 am

1 stop24h 19m

$621

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

lun. 9/15

10:14 am-10:00 am

1 stop18h 46m

London Gatwick

vie. 9/26

2:00 pm-9:19 am

1 stop24h 19m

$623

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

lun. 9/22

10:55 am-6:20 am

1 stop14h 25m

London Heathrow

mié. 10/1

12:40 pm-1:21 pm

2 stops29h 41m

$673

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mar. 9/23

6:15 am-6:30 am

2 stops19h 15m

London Heathrow

mar. 10/7

2:05 pm-6:33 pm

2 stops33h 28m

$673

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mié. 10/1

7:00 am-6:30 am

2 stops18h 30m

London Heathrow

vie. 10/24

2:05 pm-9:00 pm

2 stops35h 55m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 45 results
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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 round-trip 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?

Use this chart to determine the optimal time to book a round-trip flight from Louisville to London. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Louisville to London, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of $661). Flying from Louisville to London in June is currently the most expensive (average of $1,097). 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?

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 agosto 18, 2025.

It’s typically best to fly out from Louisville to London in the afternoon. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Louisville to London?

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 agosto 18, 2025.
Read through reviews of airlines operating flights from Louisville to London, such as Delta, United Airlines, and Virgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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!
Virgin Atlantic
7.4
Good
657 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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!
British Airways
6.7
Okay
7,277 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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

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?

    Louisville Intl (SDF) is the airport you will fly out of if you book a flight from Louisville to London. You should not have trouble finding flights to London from Louisville Intl; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the Louisville airport to London. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

  • How long is the flight from Louisville to London?

    Departing from Louisville to London will take you 14h 25m. Airlines will cover a distance of 4033 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Currently priced at $580, Virgin Atlantic will fly you from Louisville to London and back. In addition to Virgin Atlantic, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and United Airlines - these airlines can fly you to your destination from $598 and $684, respectively. These flights start at 40% lower than the current average price 3 months from now.

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

    $453 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Iberia and Lufthansa, with prices starting from $518 and $542, respectively.

  • What are the most popular routes from Louisville to London?

    When deciding which route to take from Louisville to London consider Louisville Intl - London Heathrow, Louisville Intl - London City or Louisville Intl - London Gatwick as they are the most popular.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Louisville to London (average of $661). Flying from Louisville to London in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Orpington
Watford
Gatwick
Borehamwood
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Arundel
Eastbourne
Milton Keynes
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Louisville to London

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Top 5 airlines flying from Louisville to London

Discover the top 5 airlines that operate flights from Louisville to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$580Average$1,242FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$598Average$787FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$684Average$878FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$692Average$978FlexibilityNo cancel feeOn-time71%
DeltaCheapest$700Average$1,056FlexibilityNo cancel feeOn-timeN/A

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