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>

$155 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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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$292

United Airlines

Sat 4/4Wed 4/8

YOW - SDF • 1 stop

Cheapest one-way

$155

Overall average: $215

Multiple Airlines

Tue 2/24

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

Recent round-trip flight deals from Ontario to Louisville

Sat, Apr 4 - Wed, Apr 8

10:00 am - 2:47 pm

YOW

SDF

4h 47m

1 stop

7:20 am - 1:59 pm

SDF

YOW

6h 39m

1 stop

$292United Airlines

Sat, Apr 4 - Wed, Apr 8

5:50 pm - 11:44 pm

YOW

SDF

5h 54m

1 stop

9:07 am - 1:59 pm

SDF

YOW

4h 52m

1 stop

$293United Airlines

Mon, May 4 - Mon, May 11

5:25 pm - 10:09 pm

YOW

SDF

4h 44m

1 stop

7:20 pm - 1:10 pm

SDF

YOW

17h 50m

2 stops

$344United Airlines

Thu, Mar 5 - Mon, Mar 9

10:59 am - 9:39 pm

YYZ

SDF

10h 40m

1 stop

6:00 am - 4:41 pm

SDF

YYZ

10h 41m

1 stop

$391American Airlines

Thu, Mar 5 - Mon, Mar 9

10:59 am - 9:39 pm

YYZ

SDF

10h 40m

1 stop

6:00 am - 4:41 pm

SDF

YYZ

10h 41m

1 stop

$392American Airlines

Tue, Feb 10 - Fri, Feb 13

5:40 am - 4:11 pm

YOW

SDF

10h 31m

2 stops

10:46 am - 12:39 am

SDF

YOW

13h 53m

2 stops

$426Delta

Tue, Feb 10 - Fri, Feb 13

5:40 am - 4:11 pm

YOW

SDF

10h 31m

2 stops

10:46 am - 12:39 am

SDF

YOW

13h 53m

2 stops

$452Delta

Tue, Feb 10 - Fri, Feb 13

3:40 pm - 1:00 pm

YYZ

SDF

21h 20m

2 stops

1:19 pm - 12:14 am

SDF

YYZ

10h 55m

1 stop

$461Multiple Airlines

Tue, Feb 10 - Fri, Feb 13

4:15 pm - 1:00 pm

YOW

SDF

20h 45m

2 stops

1:19 pm - 11:58 pm

SDF

YOW

10h 39m

1 stop

$467Multiple Airlines

Sat, Jan 31 - Sat, Feb 7

12:30 am - 1:24 pm

YYZ

SDF

12h 54m

2 stops

5:35 am - 9:58 am

SDF

YYZ

4h 23m

1 stop

$618Air Canada

Useful Info

Low season	October
High season	February
Cheapest flight	$155

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

Most popular time to fly and prices are also 18% 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)

$155 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

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