$223+ Cheap flights from Ottawa (YOW) to Louisville (SDF)
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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SDF
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Find cheap flights from Ottawa to Louisville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ottawa to Louisville
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Last-minute
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Cheapest flights from Ottawa to LouisvilleExplore 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 September 11, 2026.
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 September 11, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:20 pm -
1 stop6h 39m
Thu 11/56:00 am -
1 stop13h 27m
Deal found 9/10![United Airlines logo]()
$578
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:15 am -
1 stop12h 17m
Mon 11/97:00 am -
1 stop7h 09m
Deal found 9/6![United Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:00 am -
1 stop4h 18m
Tue 10/206:30 pm -
1 stop14h 41m
Deal found 9/7![United Airlines logo]()
$582
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:01 pm -
1 stop5h 40m
Tue 11/310:37 am -
1 stop10h 39m
Deal found 9/10![Air Canada logo]()
$585
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:05 am -
1 stop6h 34m
Tue 11/39:17 am -
1 stop4h 52m
Deal found 9/10![United Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:20 pm -
1 stop6h 39m
Sun 10/185:15 am -
1 stop8h 44m
Deal found 9/10![United Airlines logo]()
$608
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:15 am -
1 stop11h 30m
Tue 11/37:55 am -
2 stops16h 49m
Deal found 9/10![Multiple Airlines logo]()
$612
This United deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:20 pm -
1 stop6h 39m
Thu 11/510:27 am -
2 stops9h 25m
Deal found 9/10![Multiple Airlines logo]()
$615
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:37 am -
1 stop9h 54m
Tue 10/207:00 am -
2 stops6h 54m
Deal found 9/9![Air Canada logo]()
$618
Best flights from Ottawa to LouisvilleDiscover carefully curated flight deals from Ottawa to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Ottawa to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:00 am -
1 stop4h 18m
Tue 10/206:30 pm -
1 stop14h 41m
Deal found 9/6![United Airlines logo]()
$581
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:00 am -
2 stops31h 26m
Mon 11/96:53 pm -
1 stop22h 27m
Deal found 9/6![Multiple Airlines logo]()
$615
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:37 am -
1 stop9h 54m
Tue 10/207:00 am -
2 stops6h 54m
Deal found 9/9![Air Canada logo]()
$618
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:10 pm -
1 stop5h 29m
Sun 11/89:02 am -
1 stop5h 07m
Deal found 9/8![United Airlines logo]()
$582
This United deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:20 pm -
1 stop6h 39m
Wed 11/410:37 am -
2 stops9h 15m
Deal found 9/10![Multiple Airlines logo]()
$615
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:01 pm -
1 stop5h 40m
Tue 11/32:11 pm -
1 stop5h 16m
Deal found 9/10![United Airlines logo]()
$584
This United deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:20 pm -
1 stop6h 39m
Sun 10/185:15 am -
2 stops8h 38m
Deal found 9/10![Multiple Airlines logo]()
$619
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:05 am -
1 stop6h 34m
Tue 11/39:17 am -
1 stop4h 52m
Deal found 9/10![United Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:10 pm -
1 stop5h 29m
Sun 11/89:55 am -
1 stop5h 12m
Deal found 9/8![United Airlines logo]()
$628
Last-minute flights from Ottawa to LouisvilleDiscover last-minute flight deals from Ottawa to Louisville. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ottawa to Louisville. Data last updated September 11, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:20 pm -
1 stop6h 39m
Sun 10/185:15 am -
1 stop8h 44m
Deal found 9/10![United Airlines logo]()
$608
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:00 am -
1 stop4h 18m
Tue 10/206:30 pm -
1 stop14h 41m
Deal found 9/6![United Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:05 am -
1 stop6h 34m
Tue 11/39:17 am -
1 stop4h 52m
Deal found 9/10![United Airlines logo]()
$607
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:37 am -
1 stop9h 54m
Tue 10/207:00 am -
2 stops6h 54m
Deal found 9/9![Air Canada logo]()
$618
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:01 pm -
1 stop5h 40m
Tue 11/310:37 am -
1 stop10h 39m
Deal found 9/10![Air Canada logo]()
$585
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:15 am -
1 stop11h 30m
Tue 11/37:55 am -
2 stops16h 49m
Deal found 9/10![Multiple Airlines logo]()
$612
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:20 pm -
1 stop6h 39m
Thu 11/56:00 am -
1 stop13h 27m
Deal found 9/10![United Airlines logo]()
$578
This United deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:20 pm -
1 stop6h 39m
Thu 11/510:27 am -
2 stops9h 25m
Deal found 9/10![Multiple Airlines logo]()
$615
One-way flights from Ottawa to LouisvilleSearch for one-way flight options from Ottawa to Louisville. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Ottawa to Louisville. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:00 am -
1 stop28h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:25 pm -
1 stop26h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$253
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $578 (United Airlines) |
One-way from | $223 (Kiwi.com) |
Popular in | January |
Cheapest in | March |
Average price | $414 |
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 7,457,451 searches. Data last updated September 11, 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
Cheapest round-trip
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Sun 10/25
3:25 pm-6:18 pm
1 stop26h 53m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$253
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Fri 9/25
7:00 am-10:11 am
2 stops27h 11m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$309
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Sun 10/18
6:00 am-10:18 am
1 stop4h 18m
Louisville Intl
Tue 10/20
6:30 pm-9:11 am
1 stop14h 41m
$581
Quickest round-trip
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Wed 11/4
3:10 pm-8:39 pm
1 stop5h 29m
Louisville Intl
Sun 11/8
9:02 am-2:09 pm
1 stop5h 07m
$582
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Mon 10/19
6:01 pm-11:41 pm
1 stop5h 40m
Louisville Intl
Tue 11/3
2:11 pm-7:27 pm
1 stop5h 16m
$584
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Sun 10/18
6:05 am-12:39 pm
1 stop6h 34m
Louisville Intl
Tue 11/3
9:17 am-2:09 pm
1 stop4h 52m
$607
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Tue 11/3
8:00 am-3:26 pm
2 stops31h 26m
Louisville Intl
Mon 11/9
6:53 pm-5:20 pm
1 stop22h 27m
$615
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Wed 10/21
5:20 pm-11:59 pm
1 stop6h 39m
Louisville Intl
Wed 11/4
10:37 am-7:52 pm
2 stops9h 15m
$615
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Sun 10/18
10:37 am-8:31 pm
1 stop9h 54m
Louisville Intl
Tue 10/20
7:00 am-1:54 pm
2 stops6h 54m
$618
OttawaLouisville
YOW Ottawa - SDF Louisville Intl
YOWSDF
Ottawa
Fri 10/16
5:20 pm-11:59 pm
1 stop6h 39m
Louisville Intl
Sun 10/18
5:15 am-1:53 pm
2 stops8h 38m
$619
Showing 1-10 of 11 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Ottawa-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Louisville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ottawa-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
YOW-SDF
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.
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.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Elizabethtown
Jeffersonville
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