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Cheap flights from Louisville to London from $922

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to London departing on 9/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from Louisville to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:00 am - 9:40 pm
SDF
-
YXU
12h 40m
2 stops
United Airlines Logo
9:30 am - 7:19 pm
YXU
-
SDF
9h 49m
2 stops
$922United Airlines
Sun, Sep 20 - Tue, Sep 22
Multiple Airlines Logo
5:52 pm - 1:50 pm
SDF
-
YXU
19h 58m
3 stops
Multiple Airlines Logo
6:10 am - 9:55 am
YXU
-
SDF
27h 45m
3 stops
$1,266Multiple Airlines
Sat, May 30 - Sat, Jun 6
WestJet Logo
12:42 pm - 1:50 pm
SDF
-
YXU
25h 08m
2 stops
WestJet Logo
6:10 am - 9:55 am
YXU
-
SDF
27h 45m
3 stops
$1,454WestJet
Sat, May 30 - Sat, Jun 6

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momondo Fare Finder

 
Customize your flight search to find flights from Louisville to London, Ontario 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, momondo users made 832,500 searches. Data last updated April 15, 2026.
Use the filters below to find and compare flights from Louisville to London, Ontario 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

Sun 9/20

9:00 am-9:40 pm

2 stops12h 40m

London

Tue 9/22

9:30 am-7:19 pm

2 stops9h 49m

$922

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Sat 5/30

5:52 pm-1:50 pm

3 stops19h 58m

London

Sat 6/6

6:10 am-9:55 am

3 stops27h 45m

$1,266

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Sat 5/30

12:42 pm-1:50 pm

2 stops25h 08m

London

Sat 6/6

6:10 am-9:55 am

3 stops27h 45m

$1,454

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Louisville to London, Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to London, Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to London, Ontario (SDF to YXU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to London, Ontario

Fastest flight time

7h 33m

Direct flights

None
The fastest flight from Louisville to London, Ontario takes 7h 33m
There are no direct flights from Louisville to London, Ontario. There are no popular flight routes from Louisville to London, Ontario.
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Frequently asked questions about flying from Louisville to London, Ontario

  • How far is Louisville Intl to London by plane?

    The straight-line distance from Louisville Intl to London is 403.6 mi. Flights usually cover this in 7h 33m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Louisville Intl Airport to London Airport?

    Prices for flights from Louisville Intl Airport to London Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Louisville Intl Airport to London Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Louisville Intl Airport to London Airport.

  • What documentation or ID do you need to fly to London Airport?

    The required travel and health documents for your London Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Louisville to London, Ontario

  • How do I get Price Alerts for flights from Louisville to London, Ontario?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Louisville from London, Ontario. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Louisville to London, Ontario with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to London?

Finding the right flight to London from Louisville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Louisville to London with flexible booking policies on momondo?

All flight searches from Louisville to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Louisville to London.

I’m not ready to book a flight from Louisville to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Louisville to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London, Ontario trip

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