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>

$152 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

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

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

Cheapest round-trip

$299

United Airlines

Mon 2/2Wed 2/4

YOW - SDF • 1 stop

Cheapest one-way

$152

Typical prices: $161-$381

Multiple Airlines

Thu 1/8

YYZ - SDF • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Louisville!

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.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Louisville

Mon, Feb 2 - Wed, Feb 4

2:15 pm - 7:43 pmYOW-SDF

5h 28m1 stop

2:10 pm - 6:52 pmSDF-YOW

4h 42m1 stop

$299United Airlines

Find Deal

Mon, Feb 2 - Wed, Feb 4

2:50 pm - 10:30 pmYOW-SDF

7h 40m2 stops

9:00 am - 4:30 pmSDF-YOW

7h 30m1 stop

$351Air Canada

Find Deal

Mon, Feb 2 - Wed, Feb 4

12:00 pm - 10:30 pmYOW-SDF

10h 30m2 stops

9:50 am - 6:52 pmSDF-YOW

9h 02m1 stop

$357United Airlines

Find Deal

Fri, Apr 10 - Mon, Apr 13

10:35 am - 4:51 pmYOW-SDF

6h 16m1 stop

9:00 am - 1:45 pmSDF-YOW

4h 45m1 stop

$360United Airlines

Find Deal

Mon, Dec 29 - Tue, Feb 10

8:20 pm - 10:49 pmYYZ-SDF

26h 29m2 stops

3:28 pm - 11:20 pmSDF-YYZ

7h 52m1 stop

$376Multiple Airlines

Find Deal

Mon, Jan 12 - Wed, Jan 14

8:00 am - 6:04 pmYUL-SDF

10h 04m1 stop

1:55 pm - 12:43 amSDF-YUL

34h 48m2 stops

$383Multiple Airlines

Find Deal

Fri, Apr 10 - Mon, Apr 13

5:40 am - 5:11 pmYOW-SDF

11h 31m2 stops

11:45 am - 12:39 amSDF-YOW

12h 54m2 stops

$405Delta

Find Deal

Thu, Mar 5 - Mon, Mar 9

10:57 am - 10:02 pmYYZ-SDF

11h 05m1 stop

6:06 am - 4:30 pmSDF-YYZ

10h 24m1 stop

$480American Airlines

Find Deal

Mon, Jan 5 - Fri, Jan 9

2:15 pm - 9:05 pmYUL-SDF

6h 50m1 stop

6:00 am - 1:32 pmSDF-YUL

7h 32m1 stop

$549Delta

Find Deal

Fri, Jan 9 - Fri, Jan 16

6:45 am - 10:05 pmYOW-SDF

15h 20m3 stops

8:06 am - 12:43 amSDF-YOW

16h 37m2 stops

$597American Airlines

Find Deal

Useful Info

Low season	October
High season	February
Cheapest flight	$152

Best time to beat the crowds but there is an average 35% increase in price.

Most popular time to fly and prices are also 21% 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.

French Lick

Jeffersonville

West Baden Springs

Elizabeth

Charlestown

Brandenburg

Georgetown

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)

$152 Find Cheap Flights from Ontario to Louisville

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

Everything you should know

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.

Traveling to a place near Louisville?

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