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>

$173 CHEAP FLIGHTS from Ontario to Louisville

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

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Flight Deals

Cheap Flights from Ontario to Louisville

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, Jun 1 - Thu, Jun 4

5:50 pm - 10:50 pm

YOW

SDF

5h 00m

1 stop

6:00 am - 10:03 am

SDF

YOW

4h 03m

1 stop

$304United Airlines

Thu, May 7 - Thu, May 14

1:30 pm - 9:28 am

YYZ

SDF

19h 58m

1 stop

10:33 am - 8:55 pm

SDF

YYZ

10h 22m

1 stop

$315Multiple Airlines

Tue, May 26 - Wed, May 27

5:20 pm - 11:59 pm

YOW

SDF

6h 39m

1 stop

6:00 am - 6:48 pm

SDF

YOW

12h 48m

1 stop

$316United Airlines

Mon, Jun 1 - Thu, Jun 4

5:50 pm - 10:50 pm

YOW

SDF

5h 00m

1 stop

6:00 am - 10:03 am

SDF

YOW

4h 03m

1 stop

$321United Airlines

Mon, Jun 1 - Thu, Jun 4

9:05 am - 10:50 pm

YOW

SDF

13h 45m

2 stops

6:00 am - 10:03 am

SDF

YOW

4h 03m

1 stop

$360Air Canada

Tue, May 26 - Fri, May 29

6:55 am - 1:51 pm

YOW

SDF

6h 56m

2 stops

7:50 am - 5:35 pm

SDF

YOW

9h 45m

2 stops

$382Delta

Mon, Jun 1 - Thu, Jun 4

9:00 am - 10:30 pm

YOW

SDF

13h 30m

2 stops

6:00 am - 10:03 am

SDF

YOW

4h 03m

1 stop

$402Air Canada

Tue, Sep 15 - Tue, Sep 22

6:15 pm - 11:59 pm

YUL

SDF

5h 44m

1 stop

5:45 pm - 11:56 pm

SDF

YUL

6h 11m

1 stop

$431Delta

Tue, Sep 15 - Tue, Sep 22

7:55 am - 12:45 pm

YUL

SDF

4h 50m

1 stop

8:55 am - 10:44 pm

SDF

YUL

13h 49m

1 stop

$441American Airlines

Sat, May 30 - Fri, Jul 3

7:51 am - 6:37 pm

YUL

SDF

10h 46m

1 stop

6:25 pm - 12:29 pm

SDF

YUL

18h 04m

1 stop

$454American Airlines

Useful Info

Low season	April
High season	July
Cheapest flight	$173

Best time to beat the crowds with an average 29% drop in price.

Most popular time to fly and prices are also 2% lower on average.

Flight from Ottawa 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)

$173 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.

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