Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Louisville from C$ 284

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 13/7. 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.
United Airlines Logo
6:00 a.m. - 8:36 p.m.
YOW
-
SDF
14h 36m
3 stops
United Airlines Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 440United Airlines
Wed, 19 Aug - Fri, 21 Aug
United Airlines Logo
3:10 p.m. - 10:59 p.m.
YOW
-
SDF
7h 49m
1 stop
United Airlines Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 441United Airlines
Wed, 19 Aug - Fri, 21 Aug
Multiple Airlines Logo
6:30 a.m. - 10:35 a.m.
YYZ
-
SDF
28h 05m
1 stop
Multiple Airlines Logo
11:15 a.m. - 8:55 p.m.
SDF
-
YYZ
9h 40m
1 stop
C$ 523Multiple Airlines
Thu, 17 Sep - Mon, 21 Sep
Multiple Airlines Logo
6:30 a.m. - 11:30 a.m.
YYZ
-
SDF
29h 00m
1 stop
Multiple Airlines Logo
9:09 p.m. - 11:35 p.m.
SDF
-
YYZ
26h 26m
1 stop
C$ 584Multiple Airlines
Tue, 16 Jun - Sat, 20 Jun
Air Canada Logo
5:20 p.m. - 11:59 p.m.
YOW
-
SDF
6h 39m
2 stops
Air Canada Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 590Air Canada
Wed, 19 Aug - Fri, 21 Aug
Air Canada Logo
12:15 p.m. - 7:05 p.m.
YOW
-
SDF
6h 50m
2 stops
Air Canada Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 592Air Canada
Wed, 19 Aug - Fri, 21 Aug
Delta Logo
1:40 p.m. - 7:24 p.m.
YYZ
-
SDF
5h 44m
1 stop
Delta Logo
7:05 a.m. - 12:25 p.m.
SDF
-
YYZ
5h 20m
1 stop
C$ 593Delta
Tue, 16 Jun - Wed, 1 Jul
Delta Logo
11:40 a.m. - 9:18 p.m.
YYZ
-
SDF
9h 38m
1 stop
Delta Logo
2:22 p.m. - 11:02 p.m.
SDF
-
YYZ
8h 40m
1 stop
C$ 595Delta
Wed, 8 Jul - Mon, 13 Jul
American Airlines Logo
11:52 a.m. - 12:28 a.m.
YYZ
-
SDF
12h 36m
1 stop
American Airlines Logo
7:14 a.m. - 2:34 p.m.
SDF
-
YYZ
7h 20m
1 stop
C$ 600American Airlines
Tue, 30 Jun - Sun, 5 Jul
American Airlines Logo
6:02 p.m. - 11:08 p.m.
YYZ
-
SDF
5h 06m
1 stop
American Airlines Logo
8:15 a.m. - 10:31 p.m.
SDF
-
YYZ
14h 16m
1 stop
C$ 601American Airlines
Tue, 30 Jun - Sun, 5 Jul

United Airlines flights from Region of Ontario to Louisville

Our best United Airlines deals on Region of Ontario to Louisville flight tickets
United Airlines
19 Aug
YOW6:00 a.m.Ottawa
14h 36m
3 stops
SDF8:36 p.m.Louisville Intl
21 Aug
SDF6:00 a.m.Louisville Intl
3h 56m
1 stop
YOW9:56 a.m.Ottawa
C$ 440
United Airlines
19 Aug
YOW3:10 p.m.Ottawa
7h 49m
1 stop
SDF10:59 p.m.Louisville Intl
21 Aug
SDF6:00 a.m.Louisville Intl
3h 56m
1 stop
YOW9:56 a.m.Ottawa
C$ 441
United Airlines
26 Jun
YOW6:00 a.m.Ottawa
4h 23m
1 stop
SDF10:23 a.m.Louisville Intl
29 Jun
SDF10:02 a.m.Louisville Intl
7h 05m
1 stop
YOW5:07 p.m.Ottawa
C$ 505

Delta flights from Region of Ontario to Louisville

Our best Delta deals on Region of Ontario to Louisville flight tickets
Delta
16 Jun
YYZ1:40 p.m.Toronto Pearson Intl
5h 44m
1 stop
SDF7:24 p.m.Louisville Intl
1 Jul
SDF7:05 a.m.Louisville Intl
5h 20m
1 stop
YYZ12:25 p.m.Toronto Pearson Intl
C$ 593
Delta
8 Jul
YYZ11:40 a.m.Toronto Pearson Intl
9h 38m
1 stop
SDF9:18 p.m.Louisville Intl
13 Jul
SDF2:22 p.m.Louisville Intl
8h 40m
1 stop
YYZ11:02 p.m.Toronto Pearson Intl
C$ 595
Delta
15 Sep
YUL5:10 p.m.Montreal Pierre Elliott Trudeau Intl
4h 02m
1 stop
SDF9:12 p.m.Louisville Intl
22 Sep
SDF11:45 a.m.Louisville Intl
7h 08m
1 stop
YUL6:53 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 619

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 30 May 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

Cheapest round-trip

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 19/8

6:00 a.m.-8:36 p.m.

3 stops14h 36m

Louisville Intl

Fri 21/8

6:00 a.m.-9:56 a.m.

1 stop3h 56m

C$ 440

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 19/8

3:10 p.m.-10:59 p.m.

1 stop7h 49m

Louisville Intl

Fri 21/8

6:00 a.m.-9:56 a.m.

1 stop3h 56m

C$ 441

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 17/9

6:30 a.m.-10:35 a.m.

1 stop28h 05m

Louisville Intl

Mon 21/9

11:15 a.m.-8:55 p.m.

1 stop9h 40m

C$ 523

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Tue 16/6

6:30 a.m.-11:30 a.m.

1 stop29h 00m

Louisville Intl

Sat 20/6

9:09 p.m.-11:35 p.m.

1 stop26h 26m

C$ 584
Quickest round-trip

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 19/8

5:20 p.m.-11:59 p.m.

2 stops6h 39m

Louisville Intl

Fri 21/8

6:00 a.m.-9:56 a.m.

1 stop3h 56m

C$ 590

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 19/8

12:15 p.m.-7:05 p.m.

2 stops6h 50m

Louisville Intl

Fri 21/8

6:00 a.m.-9:56 a.m.

1 stop3h 56m

C$ 592

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Tue 16/6

1:40 p.m.-7:24 p.m.

1 stop5h 44m

Louisville Intl

Wed 1/7

7:05 a.m.-12:25 p.m.

1 stop5h 20m

C$ 593

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Wed 8/7

11:40 a.m.-9:18 p.m.

1 stop9h 38m

Louisville Intl

Mon 13/7

2:22 p.m.-11:02 p.m.

1 stop8h 40m

C$ 595

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Tue 30/6

11:52 a.m.-12:28 a.m.

1 stop12h 36m

Louisville Intl

Sun 5/7

7:14 a.m.-2:34 p.m.

1 stop7h 20m

C$ 600

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Tue 30/6

6:02 p.m.-11:08 p.m.

1 stop5h 06m

Louisville Intl

Sun 5/7

8:15 a.m.-10:31 p.m.

1 stop14h 16m

C$ 601

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 month to fly to Louisville?

In general, December 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$ 408. The month of March is another great option to travel to Louisville, with average flight prices from Region of Ontario averaging around C$ 425.

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 02m

Direct flights

Tue

Airports in Louisville

1 airport
The fastest flight from Region of Ontario to Louisville takes 4h 02m
Direct flights go from Region of Ontario to Louisville on Tuesday. There are no airlines offering direct flights.
There is 1 airport in Louisville. From Region of Ontario there are direct flights to Louisville Intl (SDF).
Search flight deals

Frequently asked questions about flying from Ontario to Louisville

  • 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
United AirlinesPriceFrom C$ 496Free CancellationRating
7.4
9,766 reviews
Search United Airlines flights
American AirlinesPriceFrom C$ 538Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
WestJetPriceFrom C$ 675Free CancellationRating
7.2
3,350 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.

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
Mon 29/6
Mon 6/7
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