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$859+ Cheap flights from Louisville (SDF) to London, ON (YXU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YXU
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
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 March 15, 2026.

This United Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/229:55 am
SDF
-
YXU
2 stops11h 24m
United Airlines
Sat 4/255:10 am
YXU
-
SDF
2 stops15h 06m
United Airlines
Deal found 3/11$859
This Air Canada deal was found by Cheapflights users on 3/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/309:00 am
SDF
-
YXU
2 stops12h 38m
Air Canada
Sun 6/75:40 am
YXU
-
SDF
2 stops7h 50m
Air Canada
Deal found 3/13$880

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 March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$859
(United Airlines)
Provider with most accurate pricing for Louisville Intl-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-London flights.
Search Deals
From Louisville Intl to London
Search Deals

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 March 15, 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

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Wed 4/22

10:00 am-9:19 pm

2 stops11h 19m

London

Sat 4/25

5:10 am-2:47 pm

2 stops9h 37m

$859

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Sun 4/26

5:00 am-5:04 pm

2 stops12h 04m

London

Sun 5/3

5:40 am-2:54 pm

2 stops9h 14m

$859
Quickest round-trip

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Sat 5/30

11:10 am-9:38 pm

2 stops10h 28m

London

Sun 6/7

12:20 pm-10:30 pm

2 stops10h 10m

$880

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Mon 4/27

9:07 am-9:19 pm

2 stops12h 12m

London

Mon 5/4

9:30 am-7:42 pm

2 stops10h 12m

$880

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

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.

Cheapflights Insights

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

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

Currently, November is the cheapest month in which you can book a flight from Louisville to London, Ontario (average of $205). Flying from Louisville to London, Ontario in February is currently the most expensive (average of $688). 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.

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 10h 28m. Fly via United Airlines or Air Canada to get the fastest option. Louisville and London, Ontario are separated by a distance of 412 mi. This flight may include one or multiple stops.

  • 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, Ontario?

    Currently, November is the cheapest month in which you can book a flight from Louisville to London, Ontario (average of $205). Flying from Louisville to London, Ontario in February is currently the most expensive (average of $688). 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?

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