C$ 289 Find Cheap Flights from Louisville to Ontario – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Ontario departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Louisville to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Ontario

Fri, 6 Nov - Mon, 9 Nov
Multiple Airlines Logo
8:54 p.m. - 3:20 p.m.
SDF
-
YYZ
18h 26m
1 stop
Multiple Airlines Logo
7:25 a.m. - 6:03 p.m.
YYZ
-
SDF
10h 38m
1 stop
C$ 517Multiple Airlines
Fri, 14 Aug - Wed, 19 Aug
Multiple Airlines Logo
9:10 p.m. - 8:55 p.m.
SDF
-
YYZ
23h 45m
1 stop
Multiple Airlines Logo
4:45 p.m. - 6:15 p.m.
YYZ
-
SDF
25h 30m
2 stops
C$ 521Multiple Airlines
Tue, 3 Nov - Wed, 11 Nov
Delta Logo
10:39 a.m. - 4:16 p.m.
SDF
-
YUL
5h 37m
1 stop
Delta Logo
11:15 a.m. - 4:27 p.m.
YUL
-
SDF
5h 12m
1 stop
C$ 651Delta
Tue, 17 Nov - Tue, 24 Nov
Delta Logo
6:26 p.m. - 11:10 p.m.
SDF
-
YUL
4h 44m
1 stop
Delta Logo
4:55 p.m. - 9:41 p.m.
YUL
-
SDF
4h 46m
1 stop
C$ 660Delta
Wed, 2 Sep - Wed, 9 Sep
American Airlines Logo
6:05 a.m. - 11:10 a.m.
SDF
-
YYZ
5h 05m
1 stop
American Airlines Logo
5:45 p.m. - 11:22 p.m.
YYZ
-
SDF
5h 37m
1 stop
C$ 660American Airlines
Tue, 1 Sep - Tue, 8 Sep
American Airlines Logo
6:18 p.m. - 12:27 p.m.
SDF
-
YUL
18h 09m
1 stop
American Airlines Logo
7:55 a.m. - 10:59 p.m.
YUL
-
SDF
15h 04m
1 stop
C$ 661American Airlines
Fri, 28 Aug - Sun, 30 Aug
WestJet Logo
3:25 p.m. - 6:55 a.m.
SDF
-
YYZ
15h 30m
2 stops
WestJet Logo
6:00 a.m. - 12:21 p.m.
YYZ
-
SDF
6h 21m
1 stop
C$ 674WestJet
Fri, 11 Sep - Wed, 16 Sep
WestJet Logo
8:09 a.m. - 11:59 p.m.
SDF
-
YUL
15h 50m
1 stop
WestJet Logo
6:00 a.m. - 9:52 a.m.
YUL
-
SDF
3h 52m
1 stop
C$ 698WestJet
Tue, 29 Sep - Sat, 3 Oct
United Airlines Logo
5:15 a.m. - 5:16 p.m.
SDF
-
YOW
12h 01m
1 stop
United Airlines Logo
5:20 p.m. - 11:59 p.m.
YOW
-
SDF
6h 39m
1 stop
C$ 924United Airlines
Mon, 31 Aug - Wed, 30 Sep
United Airlines Logo
10:23 a.m. - 9:15 p.m.
SDF
-
YOW
10h 52m
2 stops
United Airlines Logo
3:10 p.m. - 11:49 p.m.
YOW
-
SDF
8h 39m
1 stop
C$ 1,053United Airlines
Booking Insights

KAYAK's insights & trends for Louisville to Ontario flights

Get data-powered insights and trends into flights from Louisville to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Louisville to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Ontario is January, when tickets cost C$ 724 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is C$ 1,289 and C$ 1,237 respectively.

Find deals

Good to know

Low season

March

Cheapest flight

C$ 289
Best time to beat the crowds (33% less expensive on average)
Most popular time to fly and prices are also 33% lower on average.
Flight from Louisville to Montreal

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Louisville to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Louisville to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Louisville to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Louisville to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Louisville to Ontario

Information on your arrival and departure airports

Louisville (SDF)