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$285+ Cheap flights from Ottawa (YOW) to Louisville (SDF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SDF
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheap flight deals from Ottawa to Louisville

Cheapest flights from Ottawa to Louisville
Explore the most affordable flight options available from Ottawa to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.

This Air Canada deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:05 am
YOW
-
SDF
1 stop14h 08m
Air Canada
Sun 8/309:00 am
SDF
-
YOW
1 stop4h 59m
Air Canada
Deal found 7/24$512
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:57 pm
YOW
-
SDF
1 stop5h 02m
United Airlines
Sat 8/299:00 am
SDF
-
YOW
1 stop4h 59m
United Airlines
Deal found 7/21$520
This United Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:20 pm
YOW
-
SDF
1 stop6h 39m
United Airlines
Sun 10/186:00 am
SDF
-
YOW
1 stop3h 56m
United Airlines
Deal found 7/22$541
This Air Canada deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:00 am
YOW
-
SDF
1 stop9h 15m
Air Canada
Sat 8/2910:23 am
SDF
-
YOW
2 stops9h 29m
Air Canada
Deal found 7/25$580
This Air Canada deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:05 am
YOW
-
SDF
2 stops14h 44m
Air Canada
Sun 10/186:00 am
SDF
-
YOW
1 stop3h 56m
Air Canada
Deal found 7/22$583
This United deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:25 am
YOW
-
SDF
1 stop6h 46m
Multiple Airlines
Sun 8/306:00 am
SDF
-
YOW
2 stops7h 10m
Multiple Airlines
Deal found 7/24$588
This Air Canada deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:15 pm
YOW
-
SDF
2 stops6h 44m
Air Canada
Sun 10/186:00 am
SDF
-
YOW
1 stop3h 56m
Air Canada
Deal found 7/22$606
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:00 am
YOW
-
SDF
3 stops14h 31m
American Airlines
Tue 9/154:48 pm
SDF
-
YOW
2 stops22h 07m
American Airlines
Deal found 7/25$827
This Mytrip deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:25 pm
YOW
-
SDF
3 stops22h 19m
WestJet
Sun 8/3012:35 pm
SDF
-
YOW
3 stops23h 00m
WestJet
Deal found 7/24$1,424

Find flight deals from Ottawa to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$512
(Air Canada)

One-way from

$285
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$408
Provider with most accurate pricing for Ottawa-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-Louisville Intl flights.
Search Deals
From Ottawa to Louisville Intl
Search Deals
One-way flight from Ottawa to Louisville Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 26, 2026.
Use the filters below to find and compare flights from Ottawa to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 8/26

5:57 pm-10:59 pm

1 stop5h 02m

Louisville Intl

Sat 8/29

9:00 am-1:59 pm

1 stop4h 59m

$520

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 8/26

10:00 am-7:15 pm

1 stop9h 15m

Louisville Intl

Sat 8/29

10:23 am-7:52 pm

2 stops9h 29m

$580
Cheapest one-way

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sat 9/5

7:00 am-10:32 am

2 stops27h 32m

$285
Quickest one-way

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sat 9/5

10:00 am-2:37 pm

1 stop4h 37m

$289

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 8/11

8:40 am-6:00 pm

2 stops9h 20m

$322

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 8/12

6:05 am-8:13 pm

1 stop14h 08m

$326

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 8/12

7:00 am-9:25 pm

2 stops14h 25m

$327

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 8/12

6:00 am-8:36 pm

3 stops14h 36m

$337

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 8/11

6:05 am-8:13 pm

1 stop14h 08m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Ottawa-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ottawa-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ottawa to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to Louisville

Weekly flight availability from Ottawa to Louisville

Explore weekly flight availability from Ottawa to Louisville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 26, 2026.

The most flights from YOW to SDF are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ottawa to Louisville?

    There are many flights that can get you from Ottawa to Louisville in 5h 02m. Fly via United Airlines to get the fastest option. Ottawa and Louisville are separated by a distance of 715 mi.

  • Can I find deals for flights from Ottawa to Louisville that include hotel bookings?

    Yes. In addition to deals on Ottawa to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Louisville.

  • Can I find deals for business class flights from Ottawa to Louisville?

    Yes. Cheapflights offers flight deals from Ottawa to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Corydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown

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