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$66+ Cheap flights from Kentucky to Ontario

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YYZ
May 30 — Jun 61
Sat 5/30
Sat 6/6
1 adult, Economy
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Cheap flight deals from Kentucky to Ontario

Cheapest flights from Kentucky to Ontario
Explore the most affordable flight options available from Kentucky to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1912:55 pm
BNA
-
YTZ
Nonstop2h 05m
Porter Airlines
Mon 6/2210:50 am
YTZ
-
BNA
Nonstop2h 25m
Porter Airlines
Deal found 4/28$144
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:50 pm
BNA
-
YYZ
Nonstop2h 05m
WestJet
Sun 6/74:45 pm
YYZ
-
BNA
Nonstop2h 15m
WestJet
Deal found 4/26$145
This Trip.com deal was found by Cheapflights users on 4/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:50 pm
BNA
-
YYZ
Nonstop2h 05m
WestJet
Wed 5/204:45 pm
YYZ
-
BNA
Nonstop2h 15m
WestJet
Deal found 4/25$147
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 6/1212:55 pm
BNA
-
YTZ
Nonstop2h 05m
Porter Airlines
Mon 6/2210:50 am
YTZ
-
BNA
Nonstop2h 25m
Porter Airlines
Deal found 4/25$148
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:50 pm
BNA
-
YYZ
Nonstop2h 05m
WestJet
Mon 5/184:45 pm
YYZ
-
BNA
Nonstop2h 15m
WestJet
Deal found 4/26$149
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Sat 6/1312:55 pm
BNA
-
YTZ
Nonstop2h 05m
Porter Airlines
Wed 6/1710:50 am
YTZ
-
BNA
Nonstop2h 25m
Porter Airlines
Deal found 4/25$149
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:50 pm
BNA
-
YYZ
Nonstop2h 05m
WestJet
Sun 5/174:45 pm
YYZ
-
BNA
Nonstop2h 15m
WestJet
Deal found 4/27$150
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/131:35 pm
BNA
-
YTZ
Nonstop2h 05m
Porter Airlines
Sun 5/1710:50 am
YTZ
-
BNA
Nonstop2h 25m
Porter Airlines
Deal found 4/27$150
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Sat 6/2012:55 pm
BNA
-
YTZ
Nonstop2h 05m
Porter Airlines
Mon 6/2210:50 am
YTZ
-
BNA
Nonstop2h 25m
Porter Airlines
Deal found 4/29$151
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 6/156:50 pm
BNA
-
YYZ
Nonstop2h 05m
WestJet
Thu 6/184:45 pm
YYZ
-
BNA
Nonstop2h 15m
WestJet
Deal found 4/25$152
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Thu 6/116:50 pm
BNA
-
YYZ
Nonstop2h 05m
WestJet
Sun 6/144:45 pm
YYZ
-
BNA
Nonstop2h 15m
WestJet
Deal found 4/29$153
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1612:55 pm
BNA
-
YTZ
Nonstop2h 05m
Porter Airlines
Sun 5/1710:50 am
YTZ
-
BNA
Nonstop2h 25m
Porter Airlines
Deal found 4/26$153

Find flight deals from Kentucky to Ontario

Keep the following information in mind while searching for Kentucky to Ontario flight deals. Data was last updated April 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$144
(Kiwi.com)

One-way from

$66
(Mytrip)

Popular in

December

Cheapest in

May

Average price

$524
Provider with most accurate pricing for Louisville Intl-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Toronto (YTO) flights.
Search Deals
From Kentucky to Ontario
Search Deals
One-way flight from Kentucky to Ontario
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($309 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky to Ontario 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 30, 2026.
Use the filters below to find and compare flights from Kentucky to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

NashvilleToronto

BNA - YTZ

BNAYTZ

Nashville Intl

Fri 6/19

12:55 pm-4:00 pm

Nonstop2h 05m

Toronto Island

Mon 6/22

10:50 am-12:15 pm

Nonstop2h 25m

$144

NashvilleToronto

BNA - YTZ

BNAYTZ

Nashville Intl

Wed 7/22

12:55 pm-4:00 pm

Nonstop2h 05m

Toronto Island

Sat 7/25

10:50 am-12:15 pm

Nonstop2h 25m

$192

NashvilleToronto

BNA - YYZ

BNAYYZ

Nashville Intl

Wed 5/13

6:00 am-11:49 am

1 stop4h 49m

Toronto Pearson Intl

Wed 5/20

1:00 pm-5:24 pm

1 stop5h 24m

$207

NashvilleToronto

BNA - YTZ

BNAYTZ

Nashville Intl

Tue 8/18

12:55 pm-4:00 pm

Nonstop2h 05m

Toronto Island

Sat 8/22

10:50 am-12:15 pm

Nonstop2h 25m

$220

NashvilleToronto

BNA - YYZ

BNAYYZ

Nashville Intl

Sun 6/7

7:30 am-5:19 pm

1 stop8h 49m

Toronto Pearson Intl

Thu 6/11

1:40 pm-9:48 pm

1 stop9h 08m

$237

NashvilleToronto

BNA - YYZ

BNAYYZ

Nashville Intl

Fri 6/12

8:30 am-5:19 pm

1 stop7h 49m

Toronto Pearson Intl

Sun 6/14

6:15 am-1:17 pm

1 stop8h 02m

$237

NashvilleToronto

BNA - YYZ

BNAYYZ

Nashville Intl

Mon 6/15

7:30 am-5:19 pm

1 stop8h 49m

Toronto Pearson Intl

Thu 6/18

2:29 pm-10:19 pm

1 stop8h 50m

$237

NashvilleToronto

BNA - YYZ

BNAYYZ

Nashville Intl

Fri 6/5

7:30 am-5:15 pm

1 stop8h 45m

Toronto Pearson Intl

Sun 6/7

6:15 am-1:17 pm

1 stop8h 02m

$237

NashvilleToronto

BNA - YYZ

BNAYYZ

Nashville Intl

Thu 5/28

6:43 pm-11:58 pm

1 stop4h 15m

Toronto Pearson Intl

Thu 6/4

7:45 am-4:07 pm

1 stop9h 22m

$237

NashvilleToronto

BNA - YYZ

BNAYYZ

Nashville Intl

Wed 5/27

5:14 pm-11:58 pm

1 stop5h 44m

Toronto Pearson Intl

Fri 5/29

6:12 pm-10:43 pm

1 stop5h 31m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from Kentucky to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kentucky 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 Kentucky to Ontario

What is the cheapest month to book a flight from Kentucky to Region of Ontario?

Currently, May is the cheapest month in which you can book a flight from Kentucky to Region of Ontario (average of $143). Flying from Kentucky to Region of Ontario in November is currently the most expensive (average of $842). 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.

How much does it cost to fly round-trip from Kentucky to Region of Ontario?

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 30, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Kentucky to Ontario. 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
9,677 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

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
9,677 reviews
United Airlines
7.4
Good
9,677 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

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.
American Airlines
7.1
Good
11,681 reviews
United Airlines
7.4
Good
9,677 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

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 Kentucky to Ontario. 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 Kentucky to Region of Ontario?

    Porter Airlines, United Airlines, and Delta can get you from Kentucky to Region of Ontario in just under 2h 05m. Your travel time can differ by up to 6h 44m. The distance from Kentucky to Region of Ontario is about 646 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Kentucky to Ontario that include hotel bookings?

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

  • How can I find direct flights from Kentucky to Ontario?

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

  • Can I find deals for business class flights from Kentucky to Ontario?

    Yes. Cheapflights offers flight deals from Kentucky to Ontario 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 Kentucky to Region of Ontario?

    Currently, May is the cheapest month in which you can book a flight from Kentucky to Region of Ontario (average of $143). Flying from Kentucky to Region of Ontario in November is currently the most expensive (average of $842). 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 Kentucky to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Kentucky to Ontario

Discover the top airline that operate flights from Kentucky to Ontario. 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 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$341Average$672FlexibilityNo cancel feeOn-time69%

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