YOW - SDF

C$ 251 Find Cheap Flights from Ottawa to Louisville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Louisville departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Louisville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Louisville, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 443
Typical prices: C$ 903-C$ 642
United Airlines
Thu 20/8Mon 24/8
YOW - SDF • 1 stop
Cheapest one-way flights
C$ 251
United Airlines
Fri 12/6
YOW - SDF • 1 stop
Top airlines
Cheapest • from C$ 421 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Ottawa and Louisville. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ottawa to Louisville (YOW-SDF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to Louisville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to Louisville

Thu, 20 Aug - Mon, 24 Aug
United Airlines Logo
7:30 p.m. - 10:14 a.m.
YOW
-
SDF
14h 44m
1 stop
United Airlines Logo
7:22 a.m. - 9:35 p.m.
SDF
-
YOW
14h 13m
1 stop
C$ 443United Airlines
Thu, 20 Aug - Mon, 24 Aug
United Airlines Logo
7:30 p.m. - 10:14 a.m.
YOW
-
SDF
14h 44m
1 stop
United Airlines Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 444United Airlines
Thu, 20 Aug - Mon, 24 Aug
United Airlines Logo
6:00 a.m. - 10:14 a.m.
YOW
-
SDF
4h 14m
1 stop
United Airlines Logo
9:00 a.m. - 9:35 p.m.
SDF
-
YOW
12h 35m
1 stop
C$ 445United Airlines
Mon, 11 May - Wed, 13 May
United Airlines Logo
6:00 a.m. - 7:42 p.m.
YOW
-
SDF
13h 42m
1 stop
United Airlines Logo
5:50 a.m. - 10:03 a.m.
SDF
-
YOW
4h 13m
1 stop
C$ 503United Airlines
Thu, 20 Aug - Mon, 24 Aug
Air Canada Logo
5:20 p.m. - 12:05 a.m.
YOW
-
SDF
6h 45m
2 stops
Air Canada Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 518Air Canada
Thu, 20 Aug - Mon, 24 Aug
Air Canada Logo
5:20 p.m. - 12:05 a.m.
YOW
-
SDF
6h 45m
2 stops
Air Canada Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 519Air Canada
Thu, 20 Aug - Mon, 24 Aug
United Airlines Logo
2:00 p.m. - 10:22 p.m.
YOW
-
SDF
8h 22m
2 stops
United Airlines Logo
7:22 a.m. - 5:10 p.m.
SDF
-
YOW
9h 48m
2 stops
C$ 540United Airlines
Thu, 20 Aug - Mon, 24 Aug
Air Canada Logo
6:00 a.m. - 7:19 p.m.
YOW
-
SDF
13h 19m
2 stops
Air Canada Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 579Air Canada
Thu, 20 Aug - Mon, 24 Aug
Air Canada Logo
6:00 a.m. - 7:19 p.m.
YOW
-
SDF
13h 19m
2 stops
Air Canada Logo
6:00 a.m. - 9:56 a.m.
SDF
-
YOW
3h 56m
1 stop
C$ 581Air Canada
Mon, 11 May - Wed, 13 May
United Airlines Logo
2:40 p.m. - 7:42 p.m.
YOW
-
SDF
5h 02m
1 stop
United Airlines Logo
10:06 a.m. - 9:16 p.m.
SDF
-
YOW
11h 10m
2 stops
C$ 587United Airlines
Booking Insights

KAYAK's insights & trends for Ottawa to Louisville flights

Get data-powered insights and trends into flights from Ottawa to Louisville to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ottawa to Louisville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to Louisville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ottawa to Louisville is February, where tickets cost C$ 0 (return) on average. On the other hand, the most expensive months are January and October, where the average cost of round-trip tickets is C$ 1,019 and C$ 818 respectively.

Good to know

Low seasonMarch
Cheapest flightC$ 251
Best time to beat the crowds (40% less expensive on average)
Most popular time to fly and prices are also 8% lower on average.
Flight from Ottawa to Louisville

When to book flights from Ottawa to Louisville

Are your dates flexible? Find out the best times to travel from Ottawa to Louisville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ottawa to Louisville

  • What is the cheapest flight from Ottawa to Louisville?

    In the last 3 days, the lowest price for a flight from Ottawa to Louisville was C$ 251 for a one-way ticket and C$ 421 for a round-trip.

  • Which airports will I be using when flying from Ottawa to Louisville?

    Ottawa airport is called Ottawa and the only airport in Louisville is Louisville Intl.

  • Which aircraft models fly most regularly from Ottawa to Louisville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ottawa to Louisville?

    Star Alliance is the only airline alliance operating flights between Ottawa and Louisville.

  • How does KAYAK find such low prices on flights from Ottawa to Louisville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ottawa to Louisville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to Louisville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Ottawa is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ottawa to Louisville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Louisville with an airline and back to Ottawa with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ottawa to Louisville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Louisville from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ottawa to Louisville

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Louisville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ottawa to Louisville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9680 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

8.0 ExcellentVolha, Apr 2026
YYZ - ORD
Read more United Airlines reviews

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

Good but airlines getting smaller. I didn't like the meal but the service was fine. Flight was fine and luggage arrived. So good.

They were fast and I like how they used to entertainment system to play video about the safety.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

Flight attendants had a little attitude. Food tastes no good.

From pre boarding to flight attendant, crew and baggage handler, excellent. Didn’t lost my luggage like West jet.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

Everything you need to know for your flight from Ottawa to Louisville

Information on your arrival and departure airports