$325 Cheap Flights from Ottawa (YOW) to Louisville (SDF)

View $325 flight on Thu, Oct 16, 2025Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Louisville Intl. Airport (SDF)

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Cheap Flights from Ottawa to Louisville (YOW-SDF)

Prices were available within the past 7 days and start at $325 for one-way flights and $636 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, Sep 16 - Wed, Sep 24
YOW
Ottawa
SDF
Louisville
$636 Roundtrip, found 7 hours ago
$636
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Tue, Sep 16 from Ottawa to Louisville, returning Wed, Sep 24, priced at $636 found 7 hours ago
Air Canada
Tue, Sep 16 - Tue, Sep 23
YOW
Ottawa
SDF
Louisville
$641 Roundtrip, found 7 hours ago
$641
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Tue, Sep 16 from Ottawa to Louisville, returning Tue, Sep 23, priced at $641 found 7 hours ago
United
Tue, Sep 16 - Tue, Oct 14
YOW
Ottawa
SDF
Louisville
$646 Roundtrip, found 5 days ago
$646
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 16 from Ottawa to Louisville, returning Tue, Oct 14, priced at $646 found 5 days ago
Air Canada
Tue, Sep 16 - Tue, Sep 23
YOW
Ottawa
SDF
Louisville
$648 Roundtrip, found 7 hours ago
$648
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Tue, Sep 16 from Ottawa to Louisville, returning Tue, Sep 23, priced at $648 found 7 hours ago
United
Tue, Sep 16 - Tue, Sep 23
YOW
Ottawa
SDF
Louisville
$663 Roundtrip, found 7 hours ago
$663
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Sep 16 from Ottawa to Louisville, returning Tue, Sep 23, priced at $663 found 7 hours ago
United
Sat, Sep 13 - Tue, Oct 14
YOW
Ottawa
SDF
Louisville
$671 Roundtrip, found 5 days ago
$671
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 13 from Ottawa to Louisville, returning Tue, Oct 14, priced at $671 found 5 days ago
Air Canada
Tue, Sep 16 - Tue, Sep 23
YOW
Ottawa
SDF
Louisville
$672 Roundtrip, found 7 hours ago
$672
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Tue, Sep 16 from Ottawa to Louisville, returning Tue, Sep 23, priced at $672 found 7 hours ago
United
Sat, Sep 13 - Sat, Oct 18
YOW
Ottawa
SDF
Louisville
$674 Roundtrip, found 5 days ago
$674
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 13 from Ottawa to Louisville, returning Sat, Oct 18, priced at $674 found 5 days ago
Delta
Tue, Sep 16 - Fri, Oct 17
YOW
Ottawa
SDF
Louisville
$782 Roundtrip, found 5 days ago
$782
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Sep 16 from Ottawa to Louisville, returning Fri, Oct 17, priced at $782 found 5 days ago
WestJet
Fri, Oct 3 - Sun, Oct 5
YOW
Ottawa
SDF
Louisville
$831 Roundtrip, found 16 hours ago
$831
Roundtrip
found 16 hours ago
Select WestJet flight, departing Fri, Oct 3 from Ottawa to Louisville, returning Sun, Oct 5, priced at $831 found 16 hours ago

Alternative airports near Louisville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Louisville Intl. SDF. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $636
SDF
Louisville Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $636
Flights from Ottawa (YOW) to Louisville (SDF)
Origin airport
Macdonald-Cartier Intl.
Destination airport
Louisville Intl.
Airlines serving
WestJet
Roundtrip price
$636
Distance
715 mi

Ottawa to Louisville Flights

The cheapest times to fly from Ottawa to Louisville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ottawa to Louisville are during the month of September. You can find some of the cheapest flights from Ottawa to Louisville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ottawa to Louisville

Sunday is one of the best days to book for cheap flights from Ottawa to Louisville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ottawa to Louisville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ottawa to Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from $325 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ottawa to Louisville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ottawa to Louisville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF) cost?
Grab a cheap one-way flight from $325 or cheap return flight from $636 from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF)?
September is the least expensive month to fly from YOW to SDF. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from YOW to SDF. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF)?
You'll have to hop on a flight with a layover if you're traveling from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from YOW to SDF?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF)?
To avoid potential delays on the Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF) route, aim to fly before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF) last-minute?
Last-minute fares from YOW to SDF are typically more expensive. To secure the lowest prices, start searching for flights as early as possible. That being said, if you can play around with your travel dates, you may land a cheap fare right before you leave.
Is it cheaper to book a YOW to SDF flight and hotel package?
Securing a YOW to SDF flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our extensive range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Macdonald-Cartier Intl. Airport (YOW) to Louisville Intl. Airport (SDF)?
Typically, it's possible to reschedule or cancel your YOW to SDF flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.