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$327+ Cheap flights from Louisville (SDF) to London, ON (YXU)

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YXU
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
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Cheap 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 April 29, 2026.

This United Airlines deal was found by Cheapflights users on 4/26. 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.
Sat 12/51:55 pm
SDF
-
YXU
2 stops7h 51m
United Airlines
Wed 12/99:45 am
YXU
-
SDF
2 stops10h 15m
United Airlines
Deal found 4/26$888
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Mon 6/86:00 am
SDF
-
YXU
2 stops8h 58m
United Airlines
Mon 6/159:30 am
YXU
-
SDF
2 stops14h 29m
United Airlines
Deal found 4/24$923

Find 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 (YXU). 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 April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$923
(United Airlines)

One-way from

$327
(Kiwi.com)
Provider with most accurate pricing for Louisville Intl-London flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-London flights.
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From Louisville Intl to London
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One-way flight from Louisville Intl to London
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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 April 29, 2026.
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

Cheapest round-trip
Quickest round-trip

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Mon 6/8

6:00 am-2:58 pm

2 stops8h 58m

London

Mon 6/15

9:30 am-11:59 pm

2 stops14h 29m

$923
Cheapest one-way

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Fri 6/12

9:15 pm-1:50 pm

3 stops40h 35m

$327
Quickest one-way

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Fri 6/12

7:10 am-2:58 pm

2 stops7h 48m

$381

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Louisville-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-London, Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-London, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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.

  • How long is the flight from Louisville to London, Ontario?

    There are many flights that can get you from Louisville to London, Ontario in 8h 58m. Fly via United Airlines to get the fastest option. Louisville and London, Ontario are separated by a distance of 412 mi.

  • 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.

See more FAQs

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