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Cheap flights from Ottawa to Louisville from C$ 366

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SDF
12 Jul — 19 Jul1
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 June 2026.

Wed 1/75:20 p.m.
YOW
-
SDF
1 stop6h 39m
United Airlines
Tue 7/76:00 a.m.
SDF
-
YOW
1 stop12h 48m
United Airlines
Deal found 12/6C$ 640
Tue 17/115:40 a.m.
YOW
-
SDF
2 stops7h 59m
Delta
Wed 18/113:24 p.m.
SDF
-
YOW
2 stops9h 18m
Delta
Deal found 7/6C$ 665
Tue 17/115:20 p.m.
YOW
-
SDF
1 stop6h 45m
United Airlines
Wed 18/118:45 a.m.
SDF
-
YOW
1 stop7h 30m
United Airlines
Deal found 8/6C$ 693
Wed 8/76:00 a.m.
YOW
-
SDF
1 stop4h 23m
United Airlines
Fri 17/76:00 a.m.
SDF
-
YOW
1 stop4h 03m
United Airlines
Deal found 9/6C$ 725
Wed 24/66:25 a.m.
YOW
-
SDF
1 stop12h 35m
United Airlines
Sun 12/76:00 a.m.
SDF
-
YOW
1 stop4h 03m
United Airlines
Deal found 12/6C$ 732
Sun 21/66:00 a.m.
YOW
-
SDF
1 stop4h 23m
United Airlines
Sun 28/66:00 a.m.
SDF
-
YOW
1 stop12h 48m
United Airlines
Deal found 10/6C$ 733
Sat 28/115:20 p.m.
YOW
-
SDF
1 stop6h 45m
United Airlines
Fri 4/126:30 a.m.
SDF
-
YOW
1 stop6h 56m
United Airlines
Deal found 12/6C$ 750
Tue 17/119:55 a.m.
YOW
-
SDF
2 stops10h 19m
Air Canada
Wed 18/115:35 a.m.
SDF
-
YOW
1 stop5h 04m
Air Canada
Deal found 11/6C$ 785

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 June 2026.

Round-trip from

C$ 640

One-way from

C$ 366

Popular in

January

Cheapest in

March

Average price

C$ 609
United Airlines
  • United Airlines
  • 1/7-7/7
  • 2 total stops
  • 19h 27m total
  • Ottawa to Louisville
Search Deals
United Airlines
  • United Airlines
  • 19/7
  • 1 total stop
  • 4h 23m total
  • Ottawa to Louisville
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 210 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 629,999 searches. Data last updated 12 June 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

Tue 17/11

5:40 a.m.-1:39 p.m.

2 stops7h 59m

Louisville Intl

Wed 18/11

3:24 p.m.-12:42 a.m.

2 stops9h 18m

C$ 665

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 17/11

5:20 p.m.-12:05 a.m.

1 stop6h 45m

Louisville Intl

Wed 18/11

5:35 a.m.-10:39 a.m.

1 stop5h 04m

C$ 693
Quickest round-trip

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 8/7

6:00 a.m.-10:23 a.m.

1 stop4h 23m

Louisville Intl

Fri 17/7

6:00 a.m.-10:03 a.m.

1 stop4h 03m

C$ 725

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 24/6

6:25 a.m.-7:00 p.m.

1 stop12h 35m

Louisville Intl

Sun 12/7

6:00 a.m.-10:03 a.m.

1 stop4h 03m

C$ 732

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 1/7

5:20 p.m.-11:59 p.m.

1 stop6h 39m

Louisville Intl

Tue 7/7

7:15 a.m.-5:10 p.m.

2 stops9h 55m

C$ 735

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sat 28/11

5:20 p.m.-12:05 a.m.

1 stop6h 45m

Louisville Intl

Fri 4/12

6:30 a.m.-1:26 p.m.

1 stop6h 56m

C$ 750

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 17/11

9:55 a.m.-8:14 p.m.

2 stops10h 19m

Louisville Intl

Wed 18/11

5:35 a.m.-10:39 a.m.

1 stop5h 04m

C$ 785
Cheapest one-way
Quickest one-way

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sun 19/7

6:00 a.m.-10:23 a.m.

1 stop4h 23m

C$ 366

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 24/7

3:10 p.m.-10:50 p.m.

1 stop7h 40m

C$ 366

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Sun 26/7

6:00 a.m.-10:23 a.m.

1 stop4h 23m

C$ 370

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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’s the top layover airport for flights from Ottawa to Louisville?

Share of one-stop round-trip flights from Ottawa to Louisville chosen by Cheapflights users in the past 12 months, using the same layover each way.

Washington, D.C. (IAD) – chosen by Cheapflights users on 80% of one-stop itineraries from Ottawa to Louisville on Cheapflights.

What’s the cheapest layover airport for flights from Ottawa to Louisville?

Average round-trip fare for 1-stop flights from Ottawa to Louisville, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Washington, D.C. (IAD) is the most affordable 1-stop option, with an average round-trip price of C$ 1,024.

What’s the fastest layover option from Ottawa to Louisville?

Shortest average travel time for 1-stop one-way flights from Ottawa to Louisville, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Washington, D.C. (IAD) have the shortest average one-way travel time for 1-stop routes: 4h 58m.

Which airport typically offers the quickest layover for flights from Ottawa to Louisville?

Average layover duration for 1-stop one-way flights from Ottawa to Louisville, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average layover time of 1h 05m.

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 June 2026.
See what other customers who have flown with United Airlines 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
9,810 reviews
Check prices

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,810 reviews
United Airlines
7.4
Good
9,810 reviews
Check prices

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 45m. Delta provides one of the quickest options available for as low as C$ 693. The distance from Ottawa to Louisville is about 1151 km. This flight may include one or multiple stops.

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

    Flying on United Airlines is currently your cheapest option to Louisville, with prices starting at C$ 502. This flight start at 27% 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.

See more FAQs

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 629,999 searches. Data last updated 12 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 502AverageC$ 646FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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