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$345+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YOW
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
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 March 15, 2026.

This United Airlines deal was found by Cheapflights users on 3/13. 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 4/11:55 pm
SDF
-
YOW
1 stop7h 40m
United Airlines
Sat 5/26:25 am
YOW
-
SDF
1 stop7h 42m
United Airlines
Deal found 3/13$345
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 4/2110:00 am
SDF
-
YOW
1 stop7h 07m
United Airlines
Wed 4/2210:00 am
YOW
-
SDF
1 stop4h 47m
United Airlines
Deal found 3/10$414
This United Airlines deal was found by Cheapflights users on 3/11. 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 10/269:00 am
SDF
-
YOW
1 stop8h 14m
United Airlines
Fri 10/305:20 pm
YOW
-
SDF
1 stop6h 45m
United Airlines
Deal found 3/11$466
This Air Canada deal was found by Cheapflights users on 3/10. 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.
Tue 4/217:20 am
SDF
-
YOW
1 stop9h 47m
Air Canada
Wed 4/2210:55 am
YOW
-
SDF
2 stops8h 47m
Air Canada
Deal found 3/10$487
This Air Canada deal was found by Cheapflights users on 3/13. 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.
Wed 4/19:55 am
SDF
-
YOW
1 stop4h 27m
Air Canada
Sat 5/29:05 am
YOW
-
SDF
2 stops10h 17m
Air Canada
Deal found 3/13$508
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:05 pm
SDF
-
YOW
2 stops9h 34m
Delta
Sat 5/26:55 am
YOW
-
SDF
2 stops11h 28m
Delta
Deal found 3/11$516

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 March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$345
(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.
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From Louisville Intl to Ottawa
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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 March 15, 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

Wed 4/1

1:55 pm-9:35 pm

1 stop7h 40m

Ottawa

Sat 5/2

6:25 am-2:07 pm

1 stop7h 42m

$345

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Tue 4/21

9:55 am-2:22 pm

1 stop4h 27m

Ottawa

Wed 4/22

6:00 am-2:47 pm

1 stop8h 47m

$366
Quickest round-trip

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Wed 4/8

9:07 am-1:59 pm

1 stop4h 52m

Ottawa

Wed 4/15

5:25 pm-11:59 pm

1 stop6h 34m

$476

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

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.

Cheapflights Insights

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

What is the cheapest month to book a flight from Louisville to Ottawa?

Currently, October is the cheapest month in which you can book a flight from Louisville to Ottawa (average of $184). Flying from Louisville to Ottawa in August is currently the most expensive (average of $521). 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.

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 7h 40m. 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.

  • What is the cheapest month to book a flight from Louisville to Ottawa?

    Currently, October is the cheapest month in which you can book a flight from Louisville to Ottawa (average of $184). Flying from Louisville to Ottawa in August is currently the most expensive (average of $521). 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

Traveling to a place near Ottawa?

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

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