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>

$213 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

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, Jun 14 - Tue, Jun 30

6:00 am - 10:23 am

YOW

SDF

4h 23m

1 stop

1:48 pm - 11:54 pm

SDF

YOW

10h 06m

1 stop

$351United Airlines

Wed, Aug 19 - Fri, Aug 21

6:00 am - 8:36 pm

YOW

SDF

14h 36m

3 stops

6:00 am - 9:56 am

SDF

YOW

3h 56m

1 stop

$368United Airlines

Sun, Jun 14 - Tue, Jun 30

6:00 am - 10:23 am

YOW

SDF

4h 23m

1 stop

7:55 pm - 1:10 pm

SDF

YOW

17h 15m

2 stops

$420United Airlines

Wed, Aug 19 - Fri, Aug 21

9:55 am - 4:38 pm

YOW

SDF

6h 43m

2 stops

6:00 am - 9:56 am

SDF

YOW

3h 56m

1 stop

$428Air Canada

Wed, Aug 19 - Fri, Aug 21

9:55 am - 4:38 pm

YOW

SDF

6h 43m

2 stops

6:00 am - 9:56 am

SDF

YOW

3h 56m

1 stop

$429Air Canada

Tue, Aug 11 - Mon, Aug 17

6:00 am - 1:51 pm

YUL

SDF

7h 51m

1 stop

11:45 am - 6:54 pm

SDF

YUL

7h 09m

1 stop

$449Delta

Mon, Jun 22 - Mon, Jun 29

6:15 am - 11:53 am

YYZ

SDF

5h 38m

1 stop

5:26 pm - 11:02 pm

SDF

YYZ

5h 36m

1 stop

$482Delta

Tue, Jun 30 - Sat, Jul 4

6:34 pm - 12:32 am

YYZ

SDF

5h 58m

1 stop

5:26 pm - 11:02 pm

SDF

YYZ

5h 36m

1 stop

$489WestJet

Wed, Oct 7 - Mon, Oct 12

6:08 pm - 9:41 pm

YYZ

SDF

3h 33m

1 stop

6:26 pm - 9:01 am

SDF

YYZ

14h 35m

1 stop

$494WestJet

Tue, Jun 23 - Tue, Jun 30

4:00 pm - 5:18 pm

YOW

SDF

25h 18m

3 stops

5:26 pm - 11:34 am

SDF

YOW

18h 08m

2 stops

$828Multiple Airlines

Useful Info

Low season	April
High season	December
Cheapest flight	$213

Best time to beat the crowds with an average 40% drop in price.

Most popular time to fly and prices are also 19% 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

Georgetown

Brandenburg

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)

$213 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