Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Louisville to London from $399

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to London departing on 4/24. 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
1 adult, Economy, 0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Louisville to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:55 am - 5:04 pm
SDF
-
YXU
7h 09m
2 stops
United Airlines Logo
5:10 am - 2:47 pm
YXU
-
SDF
9h 37m
2 stops
$837United Airlines
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
8:47 am - 5:04 pm
SDF
-
YXU
8h 17m
2 stops
United Airlines Logo
5:10 am - 1:17 pm
YXU
-
SDF
8h 07m
2 stops
$848United Airlines
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
10:00 am - 9:19 pm
SDF
-
YXU
11h 19m
2 stops
United Airlines Logo
5:10 am - 2:47 pm
YXU
-
SDF
9h 37m
2 stops
$859United Airlines
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
6:00 am - 5:04 pm
SDF
-
YXU
11h 04m
2 stops
United Airlines Logo
5:10 am - 6:36 pm
YXU
-
SDF
13h 26m
2 stops
$905United Airlines
Thu, Apr 23 - Thu, Apr 30

United Airlines flights from Louisville to London, Ontario

Our best United Airlines deals on Louisville to London, Ontario flight tickets
United Airlines
Apr 22
SDF9:55 amLouisville Intl
7h 09m
2 stops
YXU5:04 pmLondon
Apr 25
YXU5:10 amLondon
9h 37m
2 stops
SDF2:47 pmLouisville Intl
$837
United Airlines
Apr 22
SDF8:47 amLouisville Intl
8h 17m
2 stops
YXU5:04 pmLondon
Apr 25
YXU5:10 amLondon
8h 07m
2 stops
SDF1:17 pmLouisville Intl
$848
United Airlines
Apr 22
SDF9:55 amLouisville Intl
11h 24m
2 stops
YXU9:19 pmLondon
Apr 25
YXU5:10 amLondon
15h 06m
2 stops
SDF8:16 pmLouisville Intl
$859

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 March 12, 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

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Wed 4/22

9:55 am-5:04 pm

2 stops7h 09m

London

Sat 4/25

5:10 am-2:47 pm

2 stops9h 37m

$837
Quickest round-trip

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Wed 4/22

8:47 am-5:04 pm

2 stops8h 17m

London

Sat 4/25

5:10 am-1:17 pm

2 stops8h 07m

$848

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

Thu 4/23

6:00 am-5:04 pm

2 stops11h 04m

London

Thu 4/30

5:10 am-6:36 pm

2 stops13h 26m

$905
Cheapest one-way
Quickest one-way

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Fri 4/24

5:00 am-9:19 pm

2 stops16h 19m

$399

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from Louisville to London, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Louisville Intl to London?

United Airlines is the most popular carrier operating from Louisville Intl to London

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

11h 24m

Direct flights

None
The fastest flight from Louisville to London, Ontario takes 11h 24m
There are no direct flights from Louisville to London, Ontario. There are no popular flight routes from Louisville to London, Ontario.
Search flight deals

  • 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 11h 24m, 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.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 4/11
Sat 4/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada