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$225+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SDF
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
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 March 12, 2026.

This United Airlines deal was found by Cheapflights users on 3/7. 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 4/225:25 pm
YOW
-
SDF
1 stop6h 34m
United Airlines
Wed 4/299:07 am
SDF
-
YOW
1 stop4h 52m
United Airlines
Deal found 3/7$326
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 4/410:44 am
YOW
-
SDF
1 stop5h 57m
United Airlines
Wed 4/89:07 am
SDF
-
YOW
1 stop4h 52m
United Airlines
Deal found 3/9$330
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Mon 4/202:40 pm
YOW
-
SDF
1 stop5h 02m
United Airlines
Thu 4/2310:00 am
SDF
-
YOW
1 stop11h 35m
United Airlines
Deal found 3/9$338
This United Airlines deal was found by Cheapflights users on 3/11. 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 4/83:10 pm
YOW
-
SDF
1 stop4h 49m
United Airlines
Wed 4/159:07 am
SDF
-
YOW
1 stop4h 52m
United Airlines
Deal found 3/11$345
This Air Canada deal was found by Cheapflights users on 3/10. 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.
Mon 4/205:25 pm
YOW
-
SDF
1 stop5h 05m
Air Canada
Thu 4/238:47 am
SDF
-
YOW
1 stop7h 51m
Air Canada
Deal found 3/10$391
This Air Canada deal was found by Cheapflights users on 3/9. 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.
Sat 4/46:00 am
YOW
-
SDF
2 stops10h 41m
Air Canada
Wed 4/89:07 am
SDF
-
YOW
2 stops7h 59m
Air Canada
Deal found 3/9$401

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$326
(United Airlines)

Popular in

January

Cheapest in

March

Average price

$308
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
Highest demand for flights based on searches. 13% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 12, 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

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 4/22

6:00 am-10:30 pm

3 stops16h 30m

Louisville Intl

Wed 4/29

5:00 am-5:07 pm

1 stop12h 07m

$329

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sun 4/19

10:00 am-7:42 pm

1 stop9h 42m

Louisville Intl

Thu 4/23

9:07 am-9:35 pm

1 stop12h 28m

$330

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 4/7

5:25 pm-10:30 pm

1 stop5h 05m

Louisville Intl

Tue 4/14

9:07 am-5:07 pm

1 stop8h 00m

$330

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sat 4/4

10:00 am-7:42 pm

1 stop9h 42m

Louisville Intl

Wed 4/8

9:55 am-6:55 pm

1 stop9h 00m

$337

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 4/20

2:40 pm-7:42 pm

1 stop5h 02m

Louisville Intl

Thu 4/23

10:00 am-9:35 pm

1 stop11h 35m

$338

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 4/8

6:00 am-4:41 pm

3 stops10h 41m

Louisville Intl

Wed 4/15

2:20 pm-10:05 pm

1 stop7h 45m

$390
Quickest round-trip

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 4/20

5:25 pm-10:30 pm

1 stop5h 05m

Louisville Intl

Thu 4/23

8:47 am-4:38 pm

1 stop7h 51m

$391
Cheapest one-way
Quickest one-way

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sun 4/26

5:25 pm-10:30 pm

1 stop5h 05m

$225

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sun 4/26

4:45 pm-6:58 pm

3 stops26h 13m

$326

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 4/6

10:44 am-10:30 pm

1 stop11h 46m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 11 resultsSorted by cheapest first
1
2
  • 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

What is the cheapest month to book a flight from Ottawa to Louisville?

Currently, April is the cheapest month in which you can book a flight from Ottawa to Louisville (average of $263). Flying from Ottawa to Louisville in February is currently the most expensive (average of $887). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated March 12, 2026.
Get a feel of what it's like to fly with United Airlines from Ottawa to Louisville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,418 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 6h 34m. Fly via United Airlines to get the fastest option. Ottawa and Louisville are separated by a distance of 715 mi.

  • What is the cheapest airline to fly from Ottawa to Louisville round-trip?

    United Airlines, at $296, was found to be the cheapest airline from Ottawa to Louisville.. You may be able to fly from Ottawa to Louisville for 43% less than the average price by searching for this airline.

  • 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.

  • What is the cheapest month to book a flight from Ottawa to Louisville?

    Currently, April is the cheapest month in which you can book a flight from Ottawa to Louisville (average of $263). Flying from Ottawa to Louisville in February is currently the most expensive (average of $887). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Louisville?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Ottawa to Louisville

Discover the top airline that operate flights from Ottawa to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$296Average$468FlexibilityNo cancel feeOn-time69%

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