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Cheap flights from Ottawa to Louisville from C$ 249

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 28/11. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SDF
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ottawa to Louisville

Enter your travel dates to find the best prices.

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 29 October 2025.

Wed 12/115:55 p.m.YOW - SDF
1 stop5h 59mUnited Airlines
Tue 18/118:30 a.m.SDF - YOW
1 stop5h 02mUnited Airlines
Deal found 28/10C$ 488
Thu 13/114:15 p.m.YOW - SDF
1 stop16h 49mMultiple Airlines
Mon 17/118:52 p.m.SDF - YOW
2 stops39h 43mMultiple Airlines
Deal found 27/10C$ 514
Wed 12/116:20 a.m.YOW - SDF
1 stop6h 57mMultiple Airlines
Tue 18/116:45 a.m.SDF - YOW
2 stops9h 33mMultiple Airlines
Deal found 28/10C$ 560
Fri 7/115:14 p.m.YOW - SDF
1 stop5h 15mUnited Airlines
Mon 10/119:55 a.m.SDF - YOW
1 stop4h 32mUnited Airlines
Deal found 27/10C$ 655
Fri 7/115:14 p.m.YOW - SDF
1 stop5h 15mAir Canada
Mon 10/116:25 a.m.SDF - YOW
2 stops9h 53mAir Canada
Deal found 27/10C$ 728

Cheap 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 29 October 2025.

Round-trip from

C$ 421

One-way from

C$ 249

Popular in

March

Cheapest in

November

Average price

C$ 862
United Airlines
  • United Airlines
  • 24/2-25/2
  • 2 total stops
  • 17h 45m total
  • Ottawa to Louisville
Search Deals
United Airlines
  • United Airlines
  • 28/11
  • 1 total stop
  • 6h 57m total
  • Ottawa to Louisville
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 629,999 searches. Data last updated 29 October 2025.
Use the filters below to find and compare flights from Ottawa to Louisville that are best for you.

Fly from

Ottawa

Fly to

Louisville

Route

Depart

Return

Price

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 24/2

9:45 a.m.-7:42 p.m.

1 stop9h 57m

Louisville Intl

Wed 25/2

5:35 a.m.-10:26 a.m.

1 stop4h 51m

C$ 421

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 30/3

7:25 p.m.-10:17 a.m.

1 stop14h 52m

Louisville Intl

Wed 8/4

7:30 a.m.-1:45 p.m.

1 stop6h 15m

C$ 421

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 12/11

5:55 p.m.-11:54 p.m.

1 stop5h 59m

Louisville Intl

Tue 18/11

8:30 a.m.-1:32 p.m.

1 stop5h 02m

C$ 488

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 24/2

2:50 p.m.-10:13 p.m.

2 stops7h 23m

Louisville Intl

Wed 25/2

9:50 a.m.-10:18 p.m.

2 stops12h 28m

C$ 493

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 30/3

1:30 p.m.-10:30 p.m.

1 stop9h 00m

Louisville Intl

Wed 8/4

6:00 a.m.-4:16 p.m.

2 stops10h 16m

C$ 503

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Thu 13/11

4:15 p.m.-9:04 a.m.

1 stop16h 49m

Louisville Intl

Mon 17/11

8:52 p.m.-12:35 p.m.

2 stops39h 43m

C$ 514

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 28/11

6:20 a.m.-1:17 p.m.

1 stop6h 57m

C$ 249

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 2/12

9:45 a.m.-8:42 p.m.

1 stop10h 57m

C$ 285

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 12/12

5:40 a.m.-5:36 p.m.

2 stops11h 56m

C$ 293

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 2/12

5:40 a.m.-5:36 p.m.

2 stops11h 56m

C$ 293

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

Showing 1-10 of 16 results
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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, February is the cheapest month in which you can book a flight from Ottawa to Louisville (average of C$ 383). Flying from Ottawa to Louisville in September is currently the most expensive (average of C$ 858). 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.

What is the cheapest time of day to fly from YOW to SDF?

Find hourly flight availability from Ottawa to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 October 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 7% on flights from Ottawa to Louisville by exploring options for tickets in the evening.

How much does it cost to fly round-trip from Ottawa to Louisville?

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?

    A quick flight from Ottawa to Louisville can take about 9h 57m. United Airlines provides one of the quickest options available for as low as C$ 421. The distance from Ottawa to Louisville is about 1151 km.

  • What are the cheapest airlines to fly from Ottawa to Louisville one-way?

    One-way options have recently been found by users for as low as C$ 249 on United Airlines. Other airlines that offer cheap prices include Air Canada from C$ 285 and Delta from C$ 293 one-way.

  • 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, February is the cheapest month in which you can book a flight from Ottawa to Louisville (average of C$ 383). Flying from Ottawa to Louisville in September is currently the most expensive (average of C$ 858). 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

Browse thousands of different options on Cheapflights for your next trip

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Fly with Cheapflights

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How does Cheapflights help users find flights from Ottawa to Louisville?

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Why should you use Cheapflights to find cheap flight tickets from Ottawa to Louisville?

Cheapflights helps you find that perfect flight to Louisville from Ottawa by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ottawa to Louisville with no change fees?

Yes! Cheapflights helps users easily find flights from Ottawa to Louisville with no change fees.

Can Cheapflights notify me if prices for flights from Ottawa to Louisville become cheaper?

Not ready to book yet? You can track prices for flights from Ottawa to Louisville on Cheapflights with our Price Alert feature and get notified when better prices are available.

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