Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Louisville from C$ 253

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Louisville departing on 18/2. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? 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 Ontario to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:40 p.m. - 2:41 p.m.
YYZ
-
SDF
23h 01m1 stop
Multiple Airlines Logo
6:54 p.m. - 11:20 p.m.
SDF
-
YYZ
28h 26m1 stop
C$ 346Multiple Airlines
Mon, 2 Feb - Mon, 9 Feb
Multiple Airlines Logo
5:15 p.m. - 1:00 p.m.
YYZ
-
SDF
19h 45m1 stop
Multiple Airlines Logo
6:54 p.m. - 11:20 p.m.
SDF
-
YYZ
28h 26m1 stop
C$ 370Multiple Airlines
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
5:48 p.m. - 11:59 p.m.
YOW
-
SDF
6h 11m1 stop
United Airlines Logo
5:35 a.m. - 10:26 a.m.
SDF
-
YOW
4h 51m1 stop
C$ 401United Airlines
Sat, 21 Feb - Sat, 28 Feb
Multiple Airlines Logo
3:40 p.m. - 2:41 p.m.
YYZ
-
SDF
23h 01m1 stop
Multiple Airlines Logo
6:54 p.m. - 8:11 p.m.
SDF
-
YYZ
25h 17m2 stops
C$ 401Multiple Airlines
Mon, 2 Feb - Mon, 9 Feb
United Airlines Logo
5:11 p.m. - 10:13 p.m.
YOW
-
SDF
5h 02m1 stop
United Airlines Logo
6:15 a.m. - 1:34 p.m.
SDF
-
YOW
7h 19m1 stop
C$ 402United Airlines
Fri, 20 Feb - Sun, 22 Feb
United Airlines Logo
10:00 a.m. - 7:42 p.m.
YOW
-
SDF
9h 42m1 stop
United Airlines Logo
7:20 a.m. - 1:59 p.m.
SDF
-
YOW
6h 39m1 stop
C$ 405United Airlines
Sat, 4 Apr - Wed, 8 Apr
United Airlines Logo
5:50 p.m. - 11:44 p.m.
YOW
-
SDF
5h 54m1 stop
United Airlines Logo
9:07 a.m. - 1:59 p.m.
SDF
-
YOW
4h 52m1 stop
C$ 406United Airlines
Sat, 4 Apr - Wed, 8 Apr
Multiple Airlines Logo
5:15 p.m. - 1:00 p.m.
YYZ
-
SDF
19h 45m1 stop
Multiple Airlines Logo
6:54 p.m. - 8:11 p.m.
SDF
-
YYZ
25h 17m2 stops
C$ 411Multiple Airlines
Thu, 5 Feb - Mon, 9 Feb
Multiple Airlines Logo
7:15 a.m. - 1:00 p.m.
YYZ
-
SDF
29h 45m1 stop
Multiple Airlines Logo
3:36 p.m. - 11:20 p.m.
SDF
-
YYZ
7h 44m1 stop
C$ 426Multiple Airlines
Tue, 27 Jan - Thu, 29 Jan
Delta Logo
7:00 a.m. - 2:36 p.m.
YUL
-
SDF
7h 36m1 stop
Delta Logo
3:32 p.m. - 11:59 p.m.
SDF
-
YUL
8h 27m1 stop
C$ 687Delta
Wed, 4 Feb - Thu, 5 Feb

WestJet flights from Region of Ontario to Louisville

Our best WestJet deals on Region of Ontario to Louisville flight tickets
WestJet
13 Feb
YYZ5:15 p.m.Toronto Pearson Intl
4h 03m
1 stop
SDF9:18 p.m.Louisville Intl
17 Feb
SDF7:50 a.m.Louisville Intl
3h 28m
1 stop
YYZ11:18 a.m.Toronto Pearson Intl
C$ 822
WestJet
16 Feb
YYZ6:30 p.m.Toronto Pearson Intl
24h 32m
2 stops
SDF7:02 p.m.Louisville Intl
22 Feb
SDF5:49 p.m.Louisville Intl
30h 06m
2 stops
YYZ11:55 p.m.Toronto Pearson Intl
C$ 937
WestJet
6 Feb
YYZ6:45 p.m.Toronto Pearson Intl
20h 00m
2 stops
SDF2:45 p.m.Louisville Intl
7 Feb
SDF5:47 p.m.Louisville Intl
27h 24m
2 stops
YYZ9:11 p.m.Toronto Pearson Intl
C$ 957

United Airlines flights from Region of Ontario to Louisville

Our best United Airlines deals on Region of Ontario to Louisville flight tickets
United Airlines
21 Feb
YOW5:48 p.m.Ottawa
6h 11m
1 stop
SDF11:59 p.m.Louisville Intl
28 Feb
SDF5:35 a.m.Louisville Intl
4h 51m
1 stop
YOW10:26 a.m.Ottawa
C$ 401
United Airlines
20 Feb
YOW5:11 p.m.Ottawa
5h 02m
1 stop
SDF10:13 p.m.Louisville Intl
22 Feb
SDF6:15 a.m.Louisville Intl
7h 19m
1 stop
YOW1:34 p.m.Ottawa
C$ 402
United Airlines
4 Apr
YOW10:00 a.m.Ottawa
9h 42m
1 stop
SDF7:42 p.m.Louisville Intl
8 Apr
SDF7:20 a.m.Louisville Intl
6h 39m
1 stop
YOW1:59 p.m.Ottawa
C$ 405

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Louisville 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 96,600 searches. Data last updated 8 January 2026.
Use the filters below to find and compare flights from Ontario to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Mon 2/2

3:40 p.m.-2:41 p.m.

1 stop23h 01m

Louisville Intl

Mon 9/2

6:54 p.m.-11:20 p.m.

1 stop28h 26m

C$ 346

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 5/2

5:15 p.m.-1:00 p.m.

1 stop19h 45m

Louisville Intl

Mon 9/2

6:54 p.m.-11:20 p.m.

1 stop28h 26m

C$ 370

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sat 21/2

5:48 p.m.-11:59 p.m.

1 stop6h 11m

Louisville Intl

Sat 28/2

5:35 a.m.-10:26 a.m.

1 stop4h 51m

C$ 401

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Mon 2/2

3:40 p.m.-2:41 p.m.

1 stop23h 01m

Louisville Intl

Mon 9/2

6:54 p.m.-8:11 p.m.

2 stops25h 17m

C$ 401

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 20/2

5:11 p.m.-10:13 p.m.

1 stop5h 02m

Louisville Intl

Sun 22/2

6:15 a.m.-1:34 p.m.

1 stop7h 19m

C$ 402

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sat 4/4

10:00 a.m.-7:42 p.m.

1 stop9h 42m

Louisville Intl

Wed 8/4

7:20 a.m.-1:59 p.m.

1 stop6h 39m

C$ 405

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sat 4/4

5:50 p.m.-11:44 p.m.

1 stop5h 54m

Louisville Intl

Wed 8/4

9:07 a.m.-1:59 p.m.

1 stop4h 52m

C$ 406

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 5/2

5:15 p.m.-1:00 p.m.

1 stop19h 45m

Louisville Intl

Mon 9/2

6:54 p.m.-8:11 p.m.

2 stops25h 17m

C$ 411

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Tue 27/1

7:15 a.m.-1:00 p.m.

1 stop29h 45m

Louisville Intl

Thu 29/1

3:36 p.m.-11:20 p.m.

1 stop7h 44m

C$ 426

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

7:00 a.m.-2:36 p.m.

1 stop7h 36m

Louisville Intl

Thu 5/2

3:32 p.m.-11:59 p.m.

1 stop8h 27m

C$ 687

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Louisville from

How to get the cheapest flight ticket from Region of Ontario to Louisville

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 Ontario to Louisville Intl?

American Airlines is the most popular carrier operating from Ontario to Louisville Intl

Which airlines fly to Louisville?

Air Canada, WestJet and United Airlines are the top three most popular airlines that fly to Louisville from Region of Ontario according to our data. Air Canada is the first choice among our users, with 44% of people opting to fly with this airline when travelling to Louisville. Keep in mind that there are 5 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

Cheap Region of Ontario to Louisville flight deals and tips

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

Fastest flight time

4h 37m

Direct flights

None
The fastest flight from Region of Ontario to Louisville takes 4h 37m
There are no direct flights from Region of Ontario to Louisville. There are no popular flight routes from Region of Ontario to Louisville.
Search flight deals

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

    Prices for flights from Ontario to Louisville Intl Airport are updated daily.

  • How many operators does momondo search for flights from Ontario to Louisville Intl Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to Louisville Intl Airport.

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

    The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Region of Ontario to Louisville

Compare and see reviews for airlines that fly from Region of Ontario to Louisville with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 192Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 388Free CancellationRating
7.4
9,141 reviews
Search United Airlines flights
WestJetPriceFrom C$ 441Free CancellationRating
7.2
3,235 reviews
Search WestJet flights
American AirlinesPriceFrom C$ 574Free CancellationRating
7.2
11,095 reviews
Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Louisville . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Louisville from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Louisville from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Ontario to Louisville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Louisville and let you know when they change.

An easier way to manage your Louisville 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 7/2
Sat 14/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing Kentucky

Lexington Blue Grass Airport