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>

$151 CHEAP FLIGHTS from Ontario to Louisville

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

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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

Mon, Jul 14 - Thu, Jul 17

9:35 am - 7:08 pmYYZ-SDF

9h 33m1 stop

6:57 pm - 9:23 pmSDF-YYZ

26h 26m1 stop

$337

Find Deal

Mon, Aug 11 - Thu, Aug 14

11:39 am - 11:13 pmYYZ-SDF

11h 34m1 stop

9:44 am - 5:41 pmSDF-YYZ

7h 57m1 stop

$342American Airlines

Find Deal

Mon, Jun 30 - Thu, Jul 10

6:55 am - 4:32 pmYUL-SDF

9h 37m2 stops

12:32 pm - 5:55 pmSDF-YUL

5h 23m1 stop

$360

Find Deal

Sat, Aug 9 - Thu, Aug 14

6:30 am - 5:38 pmYYZ-SDF

11h 08m1 stop

9:44 am - 5:41 pmSDF-YYZ

7h 57m1 stop

$372American Airlines

Find Deal

Tue, Oct 7 - Thu, Oct 9

12:20 pm - 10:01 amYYZ-SDF

21h 41m1 stop

7:00 am - 11:08 pmSDF-YYZ

16h 08m1 stop

$391United Airlines

Find Deal

Wed, Aug 13 - Thu, Aug 14

8:15 am - 10:14 pmYYZ-SDF

13h 59m1 stop

8:40 am - 11:58 pmSDF-YYZ

15h 18m1 stop

$405United Airlines

Find Deal

Tue, Jul 8 - Sat, Jul 19

6:15 am - 11:37 amYYZ-SDF

5h 22m1 stop

10:29 am - 2:45 pmSDF-YYZ

4h 16m1 stop

$471Delta

Find Deal

Fri, Sep 12 - Sun, Sep 14

6:45 pm - 5:17 pmYYZ-SDF

22h 32m1 stop

7:30 pm - 11:53 pmSDF-YYZ

4h 23m1 stop

$489Delta

Find Deal

Sun, Aug 3 - Mon, Aug 11

6:15 am - 4:48 pmYYZ-SDF

10h 33m1 stop

6:00 am - 8:54 pmSDF-YYZ

14h 54m2 stops

$548WestJet

Find Deal

Wed, Jul 9 - Sat, Jul 12

12:46 pm - 2:16 pmYUL-SDF

25h 30m1 stop

5:52 pm - 7:08 amSDF-YUL

37h 16m2 stops

$551WestJet

Find Deal

Useful Info

Low season	January
High season	February
Cheapest flight	$151

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.

$151 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