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Cheap flights from Ontario to Louisville from $155

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 2/24. 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
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.
Multiple Airlines Logo
3:40 pm - 2:41 pm
YYZ
-
SDF
23h 01m1 stop
Multiple Airlines Logo
3:36 pm - 11:20 pm
SDF
-
YYZ
7h 44m1 stop
$261Multiple Airlines
Mon, Feb 2 - Thu, Feb 5
Multiple Airlines Logo
7:15 am - 1:00 pm
YYZ
-
SDF
29h 45m1 stop
Multiple Airlines Logo
3:36 pm - 11:20 pm
SDF
-
YYZ
7h 44m1 stop
$264Multiple Airlines
Tue, Feb 3 - Thu, Feb 5
Multiple Airlines Logo
3:40 pm - 2:41 pm
YYZ
-
SDF
23h 01m1 stop
Multiple Airlines Logo
6:54 pm - 11:20 pm
SDF
-
YYZ
28h 26m1 stop
$267Multiple Airlines
Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
7:15 am - 1:00 pm
YYZ
-
SDF
29h 45m1 stop
Multiple Airlines Logo
6:54 pm - 11:20 pm
SDF
-
YYZ
28h 26m1 stop
$269Multiple Airlines
Tue, Feb 3 - Mon, Feb 9
Multiple Airlines Logo
3:40 pm - 2:41 pm
YYZ
-
SDF
23h 01m1 stop
Multiple Airlines Logo
3:36 pm - 11:20 pm
SDF
-
YYZ
7h 44m1 stop
$276Multiple Airlines
Mon, Feb 2 - Tue, Feb 10
United Airlines Logo
5:50 pm - 11:44 pm
YOW
-
SDF
5h 54m1 stop
United Airlines Logo
7:20 am - 1:59 pm
SDF
-
YOW
6h 39m1 stop
$293United Airlines
Sat, Apr 4 - Wed, Apr 8
United Airlines Logo
5:25 pm - 10:09 pm
YOW
-
SDF
4h 44m1 stop
United Airlines Logo
7:20 pm - 1:10 pm
SDF
-
YOW
17h 50m2 stops
$344United Airlines
Mon, May 4 - Mon, May 11
Delta Logo
5:40 am - 4:11 pm
YOW
-
SDF
10h 31m2 stops
Delta Logo
10:46 am - 12:39 am
SDF
-
YOW
13h 53m2 stops
$411Delta
Tue, Feb 10 - Fri, Feb 13
Delta Logo
5:40 am - 4:11 pm
YOW
-
SDF
10h 31m2 stops
Delta Logo
10:46 am - 12:39 am
SDF
-
YOW
13h 53m2 stops
$412Delta
Tue, Feb 10 - Fri, Feb 13
WestJet Logo
6:45 am - 1:37 pm
YUL
-
SDF
30h 52m2 stops
WestJet Logo
5:36 pm - 12:38 am
SDF
-
YUL
7h 02m2 stops
$658WestJet
Sat, Apr 11 - Thu, Apr 16

United Airlines flights from Region of Ontario to Louisville

Our best United Airlines deals on Region of Ontario to Louisville flight tickets
United Airlines
Apr 4
YOW5:50 pmOttawa
5h 54m
1 stop
SDF11:44 pmLouisville Intl
Apr 8
SDF7:20 amLouisville Intl
6h 39m
1 stop
YOW1:59 pmOttawa
$293
United Airlines
May 4
YOW5:25 pmOttawa
4h 44m
1 stop
SDF10:09 pmLouisville Intl
May 11
SDF7:20 pmLouisville Intl
17h 50m
2 stops
YOW1:10 pmOttawa
$344
United Airlines
May 4
YOW12:00 pmOttawa
10h 09m
2 stops
SDF10:09 pmLouisville Intl
May 11
SDF7:20 pmLouisville Intl
17h 50m
2 stops
YOW1:10 pmOttawa
$353

American Airlines flights from Region of Ontario to Louisville

Our best American Airlines deals on Region of Ontario to Louisville flight tickets
American Airlines
Feb 4
YYZ1:14 pmToronto Pearson Intl
10h 05m
1 stop
SDF11:19 pmLouisville Intl
Feb 7
SDF8:07 amLouisville Intl
10h 13m
1 stop
YYZ6:20 pmToronto Pearson Intl
$347
American Airlines
Mar 5
YYZ10:59 amToronto Pearson Intl
10h 40m
1 stop
SDF9:39 pmLouisville Intl
Mar 9
SDF6:00 amLouisville Intl
10h 41m
1 stop
YYZ4:41 pmToronto Pearson Intl
$392
American Airlines
Apr 9
YYZ6:15 amToronto Pearson Intl
4h 32m
1 stop
SDF10:47 amLouisville Intl
Apr 11
SDF6:06 amLouisville Intl
10h 41m
1 stop
YYZ4:47 pmToronto Pearson Intl
$434

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 January 11, 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 pm-2:41 pm

1 stop23h 01m

Louisville Intl

Thu 2/5

3:36 pm-11:20 pm

1 stop7h 44m

$261

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Tue 2/3

7:15 am-1:00 pm

1 stop29h 45m

Louisville Intl

Thu 2/5

3:36 pm-11:20 pm

1 stop7h 44m

$264

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Mon 2/2

3:40 pm-2:41 pm

1 stop23h 01m

Louisville Intl

Mon 2/9

6:54 pm-11:20 pm

1 stop28h 26m

$267

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Tue 2/3

7:15 am-1:00 pm

1 stop29h 45m

Louisville Intl

Mon 2/9

6:54 pm-11:20 pm

1 stop28h 26m

$269

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Mon 2/2

3:40 pm-2:41 pm

1 stop23h 01m

Louisville Intl

Tue 2/10

3:36 pm-11:20 pm

1 stop7h 44m

$276

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sat 4/4

5:50 pm-11:44 pm

1 stop5h 54m

Louisville Intl

Wed 4/8

7:20 am-1:59 pm

1 stop6h 39m

$293

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 5/4

5:25 pm-10:09 pm

1 stop4h 44m

Louisville Intl

Mon 5/11

7:20 pm-1:10 pm

2 stops17h 50m

$344

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 2/10

5:40 am-4:11 pm

2 stops10h 31m

Louisville Intl

Fri 2/13

10:46 am-12:39 am

2 stops13h 53m

$411

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 2/10

5:40 am-4:11 pm

2 stops10h 31m

Louisville Intl

Fri 2/13

10:46 am-12:39 am

2 stops13h 53m

$412

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Sat 4/11

6:45 am-1:37 pm

2 stops30h 52m

Louisville Intl

Thu 4/16

5:36 pm-12:38 am

2 stops7h 02m

$658

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 48% 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

3h 50m

Direct flights

None
The fastest flight from Region of Ontario to Louisville takes 3h 50m
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
9,144 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
Charlestown
Brandenburg
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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