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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$159 CHEAP FLIGHTS from Ontario to Louisville

KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights 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.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Louisville

Sun, Aug 24 - Sun, Aug 31

7:45 am - 6:17 pmYYZ-SDF

10h 32m1 stop

2:46 pm - 2:25 pmSDF-YYZ

23h 39m2 stops

$298

Find Deal

Sun, Aug 24 - Sun, Aug 31

7:45 am - 6:17 pmYYZ-SDF

10h 32m1 stop

6:57 pm - 2:25 pmSDF-YYZ

19h 28m1 stop

$317

Find Deal

Thu, Aug 7 - Wed, Aug 13

1:16 pm - 11:02 pmYYZ-SDF

9h 46m1 stop

6:44 am - 2:34 pmSDF-YYZ

7h 50m1 stop

$324American Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

8:15 am - 4:51 pmYYZ-SDF

8h 36m1 stop

7:00 am - 8:44 pmSDF-YYZ

13h 44m1 stop

$401United Airlines

Find Deal

Fri, Aug 1 - Mon, Aug 4

12:45 pm - 7:29 pmYYZ-SDF

6h 44m1 stop

2:33 pm - 11:29 pmSDF-YYZ

8h 56m1 stop

$412American Airlines

Find Deal

Wed, Sep 17 - Mon, Sep 22

10:00 am - 10:24 pmYYZ-SDF

12h 24m1 stop

7:36 pm - 11:49 amSDF-YYZ

16h 13m1 stop

$418United Airlines

Find Deal

Fri, Sep 12 - Sun, Sep 14

12:14 pm - 5:53 pmYYZ-SDF

5h 39m1 stop

6:00 am - 11:37 amSDF-YYZ

5h 37m1 stop

$443Delta

Find Deal

Fri, Sep 12 - Sun, Sep 14

6:13 pm - 10:39 pmYYZ-SDF

4h 26m1 stop

6:00 am - 10:21 amSDF-YYZ

4h 21m1 stop

$444Delta

Find Deal

Fri, Aug 1 - Mon, Aug 4

2:30 pm - 8:55 pmYYZ-SDF

6h 25m1 stop

6:00 am - 6:14 amSDF-YYZ

24h 14m2 stops

$559WestJet

Find Deal

Thu, Aug 14 - Mon, Aug 18

4:11 pm - 9:15 pmYYZ-SDF

5h 04m1 stop

3:11 pm - 6:14 amSDF-YYZ

15h 03m2 stops

$566WestJet

Find Deal

Useful Info

Low season	January
High season	February
Cheapest flight	$159

Best time to beat the crowds but there is an average 16% increase in price.

Most popular time to fly and prices are also 16% lower on average.

Flight from Toronto 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

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Louisville

Louisville (SDF)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$159 Find Cheap Flights from Ontario to Louisville

KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

Cheap Flights from Ontario to Louisville

Recent round-trip flight deals from Ontario to Louisville

Recent one-way flight deals from Ontario to Louisville

Recent last minute flight deals from Ontario to Louisville

Good to know

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

Cabin class types available on flights to Ontario

Complete your trip to Louisville with a hotel stay or car rental

Find direct flights for Louisville

Flights to other popular destinations

Flights from domestic origins to Louisville

Choose which airport to fly into in Louisville

Find deals for your return flight