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$184+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SDF
May 28 — Jun 41
Thu 5/28
Thu 6/4
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 April 28, 2026.

This United Airlines deal was found by Cheapflights users on 4/24. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:30 pm
YOW
-
SDF
1 stop14h 44m
United Airlines
Mon 8/247:22 am
SDF
-
YOW
1 stop14h 13m
United Airlines
Deal found 4/24$324
This Air Canada deal was found by Cheapflights users on 4/26. 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 8/205:20 pm
YOW
-
SDF
2 stops6h 45m
Air Canada
Mon 8/246:00 am
SDF
-
YOW
1 stop3h 56m
Air Canada
Deal found 4/26$379
This Delta deal was found by Cheapflights users on 4/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:55 am
YOW
-
SDF
2 stops10h 32m
Delta
Sun 5/36:04 am
SDF
-
YOW
2 stops11h 31m
Delta
Deal found 4/24$671

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 April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$324
(United Airlines)

One-way from

$184
(United Airlines)

Popular in

January

Cheapest in

March

Average price

$344
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. 16% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 28, 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

Thu 8/20

7:30 pm-10:14 am

1 stop14h 44m

Louisville Intl

Mon 8/24

7:22 am-9:35 pm

1 stop14h 13m

$324
Quickest round-trip

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Thu 8/20

6:00 am-7:19 pm

2 stops13h 19m

Louisville Intl

Mon 8/24

6:00 am-9:56 am

1 stop3h 56m

$424
Cheapest one-way

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 6/12

7:30 pm-10:23 am

1 stop14h 53m

$184

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 6/8

7:30 pm-10:23 am

1 stop14h 53m

$192
Quickest one-way

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sun 5/10

6:55 am-5:12 pm

2 stops10h 17m

$222

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 5/6

6:00 am-7:42 pm

1 stop13h 42m

$245

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 6/8

5:55 pm-11:30 am

3 stops41h 35m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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.

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 April 28, 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
9,672 reviews

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,672 reviews
United Airlines
7.4
Good
9,672 reviews

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 14h 44m. 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 41% 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.

See more FAQs

Traveling to a place near Louisville?

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

Browse thousands of different options on Cheapflights for your next trip

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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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$296Average$468FlexibilityNo cancel feeOn-time69%

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