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Cheap flights from Ontario to Louisville from $182

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 4/8. 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

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Find the cheapest flights from Ontario to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:20 pm - 11:59 pm
YOW
-
SDF
6h 39m
1 stop
United Airlines Logo
6:00 am - 10:03 am
SDF
-
YOW
4h 03m
1 stop
$284United Airlines
Fri, May 22 - Tue, May 26
United Airlines Logo
9:45 am - 2:47 pm
YOW
-
SDF
5h 02m
1 stop
United Airlines Logo
7:20 am - 5:07 pm
SDF
-
YOW
9h 47m
1 stop
$285United Airlines
Wed, Mar 25 - Wed, Apr 1
United Airlines Logo
5:20 pm - 11:59 pm
YOW
-
SDF
6h 39m
1 stop
United Airlines Logo
6:00 am - 10:03 am
SDF
-
YOW
4h 03m
1 stop
$295United Airlines
Fri, May 22 - Tue, May 26
United Airlines Logo
5:20 pm - 11:59 pm
YOW
-
SDF
6h 39m
1 stop
United Airlines Logo
6:00 am - 10:03 am
SDF
-
YOW
4h 03m
1 stop
$303United Airlines
Fri, May 22 - Tue, May 26
American Airlines Logo
11:33 am - 11:48 pm
YYZ
-
SDF
12h 15m
1 stop
American Airlines Logo
6:00 am - 2:33 pm
SDF
-
YYZ
8h 33m
1 stop
$368American Airlines
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
7:10 am - 2:33 pm
YYZ
-
SDF
31h 23m
2 stops
Multiple Airlines Logo
12:09 pm - 12:14 am
SDF
-
YYZ
12h 05m
1 stop
$369Multiple Airlines
Wed, Mar 25 - Wed, Apr 1
American Airlines Logo
1:10 pm - 9:26 pm
YYZ
-
SDF
8h 16m
1 stop
American Airlines Logo
7:30 am - 4:03 pm
SDF
-
YYZ
8h 33m
1 stop
$371American Airlines
Thu, Mar 26 - Sat, Mar 28
Delta Logo
7:55 am - 4:27 pm
YYZ
-
SDF
8h 32m
1 stop
Delta Logo
6:55 am - 5:21 pm
SDF
-
YYZ
10h 26m
2 stops
$384Delta
Wed, Apr 22 - Wed, Apr 29
Delta Logo
7:44 pm - 7:03 pm
YUL
-
SDF
23h 19m
1 stop
Delta Logo
3:29 pm - 11:57 pm
SDF
-
YUL
8h 28m
1 stop
$427Delta
Fri, May 22 - Mon, May 25
Multiple Airlines Logo
8:00 am - 11:47 am
YUL
-
SDF
27h 47m
1 stop
Multiple Airlines Logo
9:13 pm - 12:30 am
SDF
-
YUL
27h 17m
2 stops
$440Multiple Airlines
Mon, Mar 23 - Mon, Mar 30

Delta flights from Region of Ontario to Louisville

Our best Delta deals on Region of Ontario to Louisville flight tickets
Delta
Apr 22
YYZ7:55 amToronto Pearson Intl
8h 32m
1 stop
SDF4:27 pmLouisville Intl
Apr 29
SDF6:55 amLouisville Intl
10h 26m
2 stops
YYZ5:21 pmToronto Pearson Intl
$384
Delta
May 22
YOW6:55 amOttawa
10h 17m
2 stops
SDF5:12 pmLouisville Intl
May 26
SDF7:50 amLouisville Intl
9h 45m
2 stops
YOW5:35 pmOttawa
$392
Delta
Apr 17
YYZ7:55 amToronto Pearson Intl
8h 32m
1 stop
SDF4:27 pmLouisville Intl
Apr 22
SDF6:55 amLouisville Intl
10h 26m
2 stops
YYZ5:21 pmToronto Pearson Intl
$423

WestJet flights from Region of Ontario to Louisville

Our best WestJet deals on Region of Ontario to Louisville flight tickets
WestJet
Jul 8
YUL8:00 pmMontreal Pierre Elliott Trudeau Intl
13h 55m
2 stops
SDF9:55 amLouisville Intl
Jul 12
SDF6:26 pmLouisville Intl
23h 54m
2 stops
YUL6:20 pmMontreal Pierre Elliott Trudeau Intl
$556
WestJet
Jul 8
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
6h 49m
1 stop
SDF1:49 pmLouisville Intl
Jul 12
SDF7:20 amLouisville Intl
11h 00m
2 stops
YUL6:20 pmMontreal Pierre Elliott Trudeau Intl
$559
WestJet
Jul 8
YUL6:15 pmMontreal Pierre Elliott Trudeau Intl
17h 21m
1 stop
SDF11:36 amLouisville Intl
Jul 12
SDF7:20 amLouisville Intl
11h 00m
2 stops
YUL6:20 pmMontreal Pierre Elliott Trudeau Intl
$560

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 832,500 searches. Data last updated February 25, 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

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 5/22

5:20 pm-11:59 pm

1 stop6h 39m

Louisville Intl

Tue 5/26

6:00 am-10:03 am

1 stop4h 03m

$284

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 3/25

9:45 am-2:47 pm

1 stop5h 02m

Louisville Intl

Wed 4/1

7:20 am-5:07 pm

1 stop9h 47m

$285

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 5/22

5:20 pm-11:59 pm

1 stop6h 39m

Louisville Intl

Tue 5/26

6:00 am-10:03 am

1 stop4h 03m

$295

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 5/22

5:20 pm-11:59 pm

1 stop6h 39m

Louisville Intl

Tue 5/26

6:00 am-10:03 am

1 stop4h 03m

$303

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Fri 4/24

11:33 am-11:48 pm

1 stop12h 15m

Louisville Intl

Fri 5/1

6:00 am-2:33 pm

1 stop8h 33m

$368

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Wed 3/25

7:10 am-2:33 pm

2 stops31h 23m

Louisville Intl

Wed 4/1

12:09 pm-12:14 am

1 stop12h 05m

$369

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 3/26

1:10 pm-9:26 pm

1 stop8h 16m

Louisville Intl

Sat 3/28

7:30 am-4:03 pm

1 stop8h 33m

$371

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Wed 4/22

7:55 am-4:27 pm

1 stop8h 32m

Louisville Intl

Wed 4/29

6:55 am-5:21 pm

2 stops10h 26m

$384

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Fri 5/22

7:44 pm-7:03 pm

1 stop23h 19m

Louisville Intl

Mon 5/25

3:29 pm-11:57 pm

1 stop8h 28m

$427

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Mon 3/23

8:00 am-11:47 am

1 stop27h 47m

Louisville Intl

Mon 3/30

9:13 pm-12:30 am

2 stops27h 17m

$440

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Can stopping save me money on Region of Ontario to Louisville flights?

You could potentially save up to 46% on your flight if you consider stops on a Region of Ontario to Louisville flight.

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 47m

Direct flights

None
The fastest flight from Region of Ontario to Louisville takes 4h 47m
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 refresh 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 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 Ontario to Louisville Intl Airport.

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

    The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,345 reviews
Search United Airlines flights

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
West Baden Springs
Bardstown
Jeffersonville
Shepherdsville
New Albany
Corydon
Elizabeth
Brandenburg
Charlestown
Springfield
Georgetown

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Louisville from Ontario.

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 simply researching potential flights to Louisville, momondo offers a useful price alert feature which will track prices for flights to Louisville from Ontario and alert you when they change.

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