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Cheap flights from Ottawa to Louisville from C$ 251

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 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SDF
22 Apr — 29 Apr1
1 adult

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 17 April 2025.

Round-trip from

C$ 749

One-way from

C$ 251

Popular in

October

Cheapest in

November

Average price

C$ 729
Air Canada
  • Air Canada
  • 29/5-31/5
  • 2 total stops
  • 21h 25m total
  • Ottawa to Louisville
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24/6
  • 24/6
  • 1 total stop
  • 16h 54m total
  • Ottawa to Louisville
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 64 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 48 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 17 April 2025.

Thu 29/56:12 a.m.YOW - SDF
1 stop6h 50mAir Canada
Sat 31/57:00 a.m.SDF - YOW
1 stop14h 35mAir Canada
Deal found 17/4C$ 749
Thu 29/55:55 a.m.YOW - SDF
2 stops28h 13mWestJet
Sat 31/52:59 p.m.SDF - YOW
2 stops15h 46mWestJet
Deal found 17/4C$ 770
Thu 29/56:30 a.m.YOW - SDF
2 stops8h 11mMultiple Airlines
Sat 31/58:55 a.m.SDF - YOW
1 stop12h 40mMultiple Airlines
Deal found 17/4C$ 792
Wed 20/85:15 a.m.YOW - SDF
2 stops9h 35mUnited Airlines
Wed 27/88:45 a.m.SDF - YOW
1 stop8h 21mUnited Airlines
Deal found 16/4C$ 825
Fri 9/55:55 a.m.YOW - SDF
2 stops8h 00mDelta
Sun 11/512:44 p.m.SDF - YOW
2 stops11h 38mDelta
Deal found 17/4C$ 840

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 17 April 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

Thu 29/5

6:12 a.m.-1:02 p.m.

1 stop6h 50m

Louisville Intl

Sat 31/5

7:00 a.m.-9:35 p.m.

1 stop14h 35m

C$ 749

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Thu 29/5

5:55 a.m.-10:08 a.m.

2 stops28h 13m

Louisville Intl

Sat 31/5

2:59 p.m.-6:45 a.m.

2 stops15h 46m

C$ 770

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Thu 29/5

6:30 a.m.-2:41 p.m.

2 stops8h 11m

Louisville Intl

Sat 31/5

8:55 a.m.-9:35 p.m.

1 stop12h 40m

C$ 792

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Wed 20/8

5:15 a.m.-2:50 p.m.

2 stops9h 35m

Louisville Intl

Wed 27/8

8:45 a.m.-5:06 p.m.

1 stop8h 21m

C$ 825

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Fri 9/5

5:55 a.m.-1:55 p.m.

2 stops8h 00m

Louisville Intl

Sun 11/5

12:44 p.m.-12:22 a.m.

2 stops11h 38m

C$ 840

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 24/6

3:50 p.m.-8:44 a.m.

1 stop16h 54m

C$ 251

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

Tue 24/6

9:20 a.m.-10:14 p.m.

2 stops12h 54m

C$ 440

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/4

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$ 332). Flying from Ottawa to Louisville in September is currently the most expensive (average of C$ 487). 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 17 April 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 8% on flights from Ottawa to Louisville by exploring options for tickets in the evening.

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 79.0 - 135.0 mm per month. May is typically the wettest month, when rainfall can reach 135.0 mm. September is typically the driest time to visit Louisville when rainfall is around 79.0 mm.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 17 April 2025.
Get a feel of what it's like to fly with Delta, United Airlines and WestJet from Ottawa to Louisville by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,809 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,142 reviews
Delta
8.0
Very good
7,917 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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$ 749. Additional round-trip tickets that might be worth considering are offered by WestJet and United Airlines, with the lowest prices starting at C$ 770 and C$ 825, respectively. These flights start at 13% 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$ 332). Flying from Ottawa to Louisville in September is currently the most expensive (average of C$ 487). 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 17 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 712AverageC$ 801FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 764AverageC$ 861FlexibilityNo cancel feeOn-time69%
Search United Airlines 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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