$209 Find Cheap Flights from Ontario to Louisville - 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 to Louisville departing on 8/12. 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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Flight Deals

Cheap Flights from Ontario to Louisville

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Louisville 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 Ontario to Louisville

Thu, Sep 10 - Thu, Sep 24
Multiple Airlines Logo
1:30 pm - 10:35 am
YYZ
-
SDF
21h 05m
1 stop
Multiple Airlines Logo
9:09 pm - 2:55 pm
SDF
-
YYZ
17h 46m
1 stop
$354Multiple Airlines
Thu, Sep 10 - Thu, Sep 24
Multiple Airlines Logo
1:30 pm - 10:35 am
YYZ
-
SDF
21h 05m
1 stop
Multiple Airlines Logo
9:09 pm - 8:55 pm
SDF
-
YYZ
23h 46m
2 stops
$381Multiple Airlines
Thu, Aug 27 - Thu, Sep 3
Delta Logo
6:00 am - 1:51 pm
YUL
-
SDF
7h 51m
1 stop
Delta Logo
7:55 am - 4:20 pm
SDF
-
YUL
8h 25m
1 stop
$393Delta
Fri, Aug 21 - Thu, Sep 3
Delta Logo
6:00 am - 1:51 pm
YUL
-
SDF
7h 51m
1 stop
Delta Logo
7:55 am - 4:20 pm
SDF
-
YUL
8h 25m
1 stop
$400Delta
Tue, Nov 3 - Tue, Nov 24
American Airlines Logo
6:00 am - 5:42 pm
YYZ
-
SDF
11h 42m
1 stop
American Airlines Logo
3:38 pm - 10:32 pm
SDF
-
YYZ
6h 54m
1 stop
$401American Airlines
Thu, Jul 23 - Sun, Jul 26
American Airlines Logo
7:17 am - 12:34 am
YUL
-
SDF
17h 17m
1 stop
American Airlines Logo
7:37 am - 9:44 pm
SDF
-
YUL
14h 07m
1 stop
$401American Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
9:30 am - 7:34 pm
YUL
-
SDF
10h 04m
1 stop
United Airlines Logo
6:30 am - 4:21 pm
SDF
-
YUL
9h 51m
1 stop
$406United Airlines
Mon, Aug 24 - Sun, Sep 13
WestJet Logo
6:00 am - 5:19 pm
YUL
-
SDF
11h 19m
1 stop
WestJet Logo
7:25 am - 6:53 pm
SDF
-
YUL
11h 28m
1 stop
$417WestJet
Tue, Sep 15 - Tue, Sep 22
WestJet Logo
6:45 am - 11:59 pm
YUL
-
SDF
17h 14m
2 stops
WestJet Logo
7:05 am - 4:45 pm
SDF
-
YUL
9h 40m
2 stops
$418WestJet
Sat, Aug 22 - Tue, Sep 15
United Airlines Logo
6:10 am - 4:38 pm
YUL
-
SDF
10h 28m
1 stop
United Airlines Logo
1:56 pm - 7:45 pm
SDF
-
YUL
5h 49m
1 stop
$423United Airlines
Useful Info

Good to know

Low seasonApril
Cheapest flight$209
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Toronto to Louisville

FAQs for booking flights from Ontario to Louisville

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

    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 Ontario to Louisville.

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

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

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

    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 to Louisville with an airline and back to Ontario with another airline.

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

    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 to Louisville from 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 to Louisville

Information on the airport you'll fly into in Louisville

Louisville (SDF)