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Cheap flights from Ontario to Louisville from C$ 248

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 31/12. 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

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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
5:11 p.m. - 10:30 p.m.YOW-SDF
5h 19m1 stop
United Airlines Logo
8:29 a.m. - 9:18 p.m.SDF-YOW
12h 49m1 stop
C$ 421United Airlines
Find Deal
Mon, 2 Feb - Wed, 4 Feb
Multiple Airlines Logo
7:00 a.m. - 10:31 a.m.YYZ-SDF
27h 31m1 stop
Multiple Airlines Logo
7:44 p.m. - 5:44 p.m.SDF-YYZ
22h 00m1 stop
C$ 422Multiple Airlines
Find Deal
Thu, 4 Dec - Sun, 7 Dec
Multiple Airlines Logo
8:30 p.m. - 10:31 a.m.YYZ-SDF
14h 01m1 stop
Multiple Airlines Logo
11:21 a.m. - 8:13 p.m.SDF-YYZ
32h 52m2 stops
C$ 424Multiple Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
Multiple Airlines Logo
8:20 p.m. - 1:00 p.m.YYZ-SDF
16h 40m1 stop
Multiple Airlines Logo
3:28 p.m. - 2:20 p.m.SDF-YYZ
22h 52m2 stops
C$ 428Multiple Airlines
Find Deal
Thu, 8 Jan - Sun, 11 Jan
Air Canada Logo
2:50 p.m. - 10:13 p.m.YOW-SDF
7h 23m2 stops
Air Canada Logo
6:15 a.m. - 4:23 p.m.SDF-YOW
10h 08m2 stops
C$ 494Air Canada
Find Deal
Tue, 24 Feb - Wed, 25 Feb
Air Canada Logo
2:50 p.m. - 10:30 p.m.YOW-SDF
7h 40m2 stops
Air Canada Logo
5:35 a.m. - 2:07 p.m.SDF-YOW
8h 32m2 stops
C$ 495Air Canada
Find Deal
Mon, 2 Feb - Wed, 4 Feb
Delta Logo
5:40 a.m. - 1:49 p.m.YOW-SDF
8h 09m2 stops
Delta Logo
3:16 p.m. - 12:42 a.m.SDF-YOW
9h 26m2 stops
C$ 579Delta
Find Deal
Wed, 3 Dec - Sun, 7 Dec
Delta Logo
7:00 a.m. - 1:12 p.m.YUL-SDF
6h 12m1 stop
Delta Logo
7:25 a.m. - 11:58 a.m.SDF-YUL
4h 33m1 stop
C$ 774Delta
Find Deal
Thu, 25 Dec - Thu, 1 Jan
American Airlines Logo
7:00 a.m. - 11:54 p.m.YUL-SDF
16h 54m1 stop
American Airlines Logo
7:53 a.m. - 10:39 p.m.SDF-YUL
14h 46m1 stop
C$ 795American Airlines
Find Deal
Mon, 15 Dec - Sat, 3 Jan
American Airlines Logo
2:26 p.m. - 8:50 a.m.YUL-SDF
18h 24m1 stop
American Airlines Logo
8:00 a.m. - 10:39 p.m.SDF-YUL
14h 39m1 stop
C$ 862American Airlines
Find Deal
Fri, 19 Dec - Sun, 28 Dec

United Airlines flights from Region of Ontario to Louisville

Our best United Airlines deals on Region of Ontario to Louisville flight tickets
United Airlines
2 Feb
YOW5:11 p.m.Ottawa
5h 19m
1 stop
SDF10:30 p.m.Louisville Intl
4 Feb
SDF8:29 a.m.Louisville Intl
12h 49m
1 stop
YOW9:18 p.m.Ottawa
C$ 421
Find similar
United Airlines
1 Jan
YOW6:15 a.m.Ottawa
14h 17m
1 stop
SDF8:32 p.m.Louisville Intl
8 Jan
SDF2:05 p.m.Louisville Intl
7h 13m
1 stop
YOW9:18 p.m.Ottawa
C$ 589
Find similar
United Airlines
15 Dec
YOW2:17 p.m.Ottawa
6h 25m
1 stop
SDF8:42 p.m.Louisville Intl
22 Dec
SDF9:55 a.m.Louisville Intl
13h 59m
1 stop
YOW11:54 p.m.Ottawa
C$ 620
Find similar

Air Canada flights from Region of Ontario to Louisville

Our best Air Canada deals on Region of Ontario to Louisville flight tickets
Air Canada
24 Feb
YOW2:50 p.m.Ottawa
7h 23m
2 stops
SDF10:13 p.m.Louisville Intl
25 Feb
SDF6:15 a.m.Louisville Intl
10h 08m
2 stops
YOW4:23 p.m.Ottawa
C$ 494
Find similar
Air Canada
2 Feb
YOW10:50 a.m.Ottawa
12h 33m
2 stops
SDF11:23 p.m.Louisville Intl
4 Feb
SDF9:50 a.m.Louisville Intl
4h 37m
1 stop
YOW2:27 p.m.Ottawa
C$ 495
Find similar
Air Canada
25 Dec
YUL10:30 a.m.Montreal Pierre Elliott Trudeau Intl
8h 41m
2 stops
SDF7:11 p.m.Louisville Intl
1 Jan
SDF9:05 a.m.Louisville Intl
9h 18m
2 stops
YUL6:23 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 860
Find similar

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 17 November 2025.
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

Mon 2/2

5:11 p.m.-10:30 p.m.

1 stop5h 19m

Louisville Intl

Wed 4/2

8:29 a.m.-9:18 p.m.

1 stop12h 49m

C$ 421

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 4/12

7:00 a.m.-10:31 a.m.

1 stop27h 31m

Louisville Intl

Sun 7/12

7:44 p.m.-5:44 p.m.

1 stop22h 00m

C$ 422

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 4/12

8:30 p.m.-10:31 a.m.

1 stop14h 01m

Louisville Intl

Mon 8/12

11:21 a.m.-8:13 p.m.

2 stops32h 52m

C$ 424

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 8/1

8:20 p.m.-1:00 p.m.

1 stop16h 40m

Louisville Intl

Sun 11/1

3:28 p.m.-2:20 p.m.

2 stops22h 52m

C$ 428

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 24/2

2:50 p.m.-10:13 p.m.

2 stops7h 23m

Louisville Intl

Wed 25/2

6:15 a.m.-4:23 p.m.

2 stops10h 08m

C$ 494

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 2/2

2:50 p.m.-10:30 p.m.

2 stops7h 40m

Louisville Intl

Wed 4/2

5:35 a.m.-2:07 p.m.

2 stops8h 32m

C$ 495

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 3/12

5:40 a.m.-1:49 p.m.

2 stops8h 09m

Louisville Intl

Sun 7/12

3:16 p.m.-12:42 a.m.

2 stops9h 26m

C$ 579

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Thu 25/12

7:00 a.m.-1:12 p.m.

1 stop6h 12m

Louisville Intl

Thu 1/1

7:25 a.m.-11:58 a.m.

1 stop4h 33m

C$ 774

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Mon 15/12

7:00 a.m.-11:54 p.m.

1 stop16h 54m

Louisville Intl

Sat 3/1

7:53 a.m.-10:39 p.m.

1 stop14h 46m

C$ 795

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Fri 19/12

2:26 p.m.-8:50 a.m.

1 stop18h 24m

Louisville Intl

Sun 28/12

8:00 a.m.-10:39 p.m.

1 stop14h 39m

C$ 862

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

What is the cheapest month to fly to Louisville?

In general, February is the cheapest month to fly from Region of Ontario to Louisville. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 394. The month of April is another great option to travel to Louisville, with average flight prices from Region of Ontario averaging around C$ 460.

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Region of Ontario is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as C$ 474. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Region of Ontario because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 666.

What is the cheapest time of day to depart on your flight to Louisville?

Our most recent data shows that the best time of day to fly to Louisville is in the evening. Flights from Region of Ontario to Louisville during this time can be as low as C$ 478. Flights at noon are often more expensive with an average ticket price of C$ 516.

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

Direct flights

None
There are no direct flights from Region of Ontario to Louisville. There are no popular flight routes from Region of Ontario to Louisville.
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  • 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$ 195Free CancellationRating
7.1
10,459 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 365Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
WestJetPriceFrom C$ 436Free CancellationRating
7.2
3,163 reviews
Search WestJet 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.

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