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Cheap flights from Ottawa to Louisville from C$ 576

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SDF
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 12 December 2025.

Mon 15/122:17 p.m.YOW - SDF
1 stop6h 25mUnited Airlines
Wed 17/129:55 a.m.SDF - YOW
1 stop13h 59mUnited Airlines
Deal found 11/12C$ 912
Mon 15/126:45 a.m.YOW - SDF
2 stops15h 04mAmerican Airlines
Wed 17/1210:40 a.m.SDF - YOW
3 stops14h 01mAmerican Airlines
Deal found 11/12C$ 1,630

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 12 December 2025.

Round-trip from

C$ 576

Popular in

March

Cheapest in

December

Average price

C$ 641
Delta
  • Delta
  • 23/3-27/3
  • 4 total stops
  • 24h 07m total
  • Ottawa to Louisville
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 12 December 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

Mon 23/3

5:40 a.m.-5:11 p.m.

2 stops11h 31m

Louisville Intl

Fri 27/3

12:03 p.m.-12:39 a.m.

2 stops12h 36m

C$ 576

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 23/3

5:55 p.m.-11:59 p.m.

1 stop6h 04m

Louisville Intl

Fri 27/3

5:35 a.m.-9:18 p.m.

1 stop15h 43m

C$ 585

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Mon 23/3

5:55 p.m.-11:59 p.m.

1 stop6h 04m

Louisville Intl

Fri 27/3

5:35 a.m.-3:23 p.m.

2 stops9h 48m

C$ 720

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

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$ 378). Flying from Ottawa to Louisville in September is currently the most expensive (average of C$ 866). 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 12 December 2025.
See what other customers who have flown with United Airlines and Air Canada from Ottawa to Louisville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,095 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Air Canada
7.1
Good
10,516 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

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 6h 04m. Delta provides one of the quickest options available for as low as C$ 585. The distance from Ottawa to Louisville is about 1151 km. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Ottawa to Louisville round-trip?

    Flying on Air Canada is currently your cheapest option to Louisville, with prices starting at C$ 342. Another option worth looking into is United Airlines, starting at C$ 496 round trip. These flights start at 57% lower than the current average price 3 months from now.

  • 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$ 378). Flying from Ottawa to Louisville in September is currently the most expensive (average of C$ 866). 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

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Alternative routes for Ottawa to Louisville

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Top 2 airlines flying from Ottawa to Louisville

Discover the top 2 airlines 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 629,999 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 496AverageC$ 817FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 713AverageC$ 819FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Ottawa to Louisville via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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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