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$362+ Cheap flights from Louisville (SDF) to Ottawa (YOW)

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YOW
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
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Cheap flight deals from Louisville to Ottawa

Cheapest flights from Louisville to Ottawa
Explore the most affordable flight options available from Louisville to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.

This United Airlines deal was found by Cheapflights users on 4/26. 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.
Thu 5/145:50 am
SDF
-
YOW
1 stop4h 13m
United Airlines
Mon 5/1810:00 am
YOW
-
SDF
1 stop13h 59m
United Airlines
Deal found 4/26$362
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/125:50 am
SDF
-
YOW
1 stop4h 13m
United Airlines
Fri 5/152:40 pm
YOW
-
SDF
1 stop5h 02m
United Airlines
Deal found 4/28$372
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Sat 8/159:00 am
SDF
-
YOW
1 stop8h 07m
United Airlines
Wed 8/195:20 pm
YOW
-
SDF
1 stop6h 45m
United Airlines
Deal found 4/27$377
This United Airlines deal was found by Cheapflights users on 4/27. 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 8/25:20 am
SDF
-
YOW
1 stop8h 39m
United Airlines
Wed 8/122:48 pm
YOW
-
SDF
1 stop8h 09m
United Airlines
Deal found 4/27$387
This Air Canada deal was found by Cheapflights users on 4/26. 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.
Thu 5/145:50 am
SDF
-
YOW
1 stop4h 13m
Air Canada
Mon 5/189:05 am
YOW
-
SDF
2 stops13h 17m
Air Canada
Deal found 4/26$445
This United Airlines deal was found by Cheapflights users on 4/28. 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 10/145:35 am
SDF
-
YOW
2 stops11h 35m
United Airlines
Sat 10/175:25 pm
YOW
-
SDF
1 stop6h 40m
United Airlines
Deal found 4/28$466
This Air Canada deal was found by Cheapflights users on 4/27. 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.
Sat 8/159:00 am
SDF
-
YOW
1 stop4h 59m
Air Canada
Wed 8/1912:15 pm
YOW
-
SDF
2 stops7h 04m
Air Canada
Deal found 4/27$468

Find flight deals from Louisville to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Ottawa (YOW). 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 April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$362
(United Airlines)
Provider with most accurate pricing for Louisville Intl-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Ottawa flights.
Search Deals
From Louisville Intl to Ottawa
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Ottawa 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 2,558,603 searches. Data last updated April 29, 2026.
Use the filters below to find and compare flights from Louisville to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 5/14

5:50 am-10:03 am

1 stop4h 13m

Ottawa

Mon 5/18

10:00 am-11:59 pm

1 stop13h 59m

$362

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Sat 8/15

9:00 am-5:07 pm

1 stop8h 07m

Ottawa

Wed 8/19

5:20 pm-12:05 am

1 stop6h 45m

$377

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Wed 10/14

11:00 am-5:21 pm

1 stop6h 21m

Ottawa

Sat 10/17

5:25 pm-12:05 am

1 stop6h 40m

$377

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Tue 5/12

7:15 am-5:11 pm

2 stops9h 56m

Ottawa

Fri 5/15

5:05 am-8:17 pm

2 stops15h 12m

$464
Quickest round-trip

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Sat 8/15

9:00 am-1:59 pm

1 stop4h 59m

Ottawa

Wed 8/19

12:15 pm-7:19 pm

2 stops7h 04m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Louisville-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Ottawa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Ottawa 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 Louisville-Ottawa 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 Louisville to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Louisville 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.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated April 29, 2026.
See what other customers who have flown with United Airlines from Louisville to Ottawa 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
9,680 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,680 reviews
United Airlines
7.4
Good
9,680 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Ottawa. 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 Louisville to Ottawa?

    Airlines like United Airlines fly from Louisville to Ottawa in about 4h 13m. The time it takes to get you to your destination can typically vary by up to . The distance from Louisville to Ottawa is about 715 mi.

  • Can I find deals for flights from Louisville to Ottawa that include hotel bookings?

    Yes. In addition to deals on Louisville to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Ottawa.

  • Can I find deals for business class flights from Louisville to Ottawa?

    Yes. Cheapflights offers flight deals from Louisville to Ottawa 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

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Louisville to Ottawa

Discover the top airline that operate flights from Louisville to Ottawa. 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 2,558,603 searches. Data last updated April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$341Average$672FlexibilityNo cancel feeOn-time69%

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