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$209+ Cheap flights from Louisville (SDF) to Toronto (YTO)

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YTO
Sep 10 — Sep 171
Thu 9/10
Thu 9/17
1 adult, Economy
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Cheap flight deals from Louisville to Toronto

Cheapest flights from Louisville to Toronto
Explore the most affordable flight options available from Louisville to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:09 pm -
1 stop26h 41m
Sun 11/2210:15 am -
1 stop10h 14m
Deal found 8/8$377
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:09 pm -
1 stop20h 06m
Sun 11/1510:15 am -
1 stop10h 14m
Deal found 8/8$378
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 10/308:10 pm -
1 stop19h 10m
Sun 11/110:15 am -
1 stop10h 14m
Deal found 8/10$389
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:09 pm -
1 stop17h 46m
Tue 9/299:50 am -
2 stops34h 41m
Deal found 8/9$403
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:56 pm -
1 stop21h 34m
Wed 10/147:45 am -
2 stops12h 46m
Deal found 8/11$406
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 10/189:09 pm -
1 stop24h 10m
Sun 10/2510:15 am -
1 stop10h 14m
Deal found 8/10$407
This FlightHub deal was found by Cheapflights users on 8/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:04 am -
2 stops18h 41m
Sat 9/129:45 am -
1 stop11h 31m
Deal found 8/10$424
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
Thu 9/249:09 pm -
1 stop17h 46m
Thu 10/16:30 am -
2 stops13h 59m
Deal found 8/10$453

Find flight deals from Louisville to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Toronto (YTO). 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 August 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$377
(Kiwi.com)

One-way from

$209
(Kiwi.com)

Popular in

October

Cheapest in

March

Average price

$550
Provider with most accurate pricing for Louisville Intl-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Toronto (YTO) flights.
Search Deals
From Louisville Intl to Toronto (YTO)
Search Deals
One-way flight from Louisville Intl to Toronto (YTO)
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($346 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Toronto 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 August 11, 2026.
Use the filters below to find and compare flights from Louisville to Toronto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Thu 9/10

10:29 am-2:32 pm

1 stop4h 03m

Toronto Pearson Intl

Tue 9/15

1:15 pm-10:33 pm

1 stop9h 18m

$478

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Sat 9/5

10:34 am-3:20 pm

1 stop4h 46m

Toronto Pearson Intl

Sat 9/12

7:45 am-2:58 pm

1 stop7h 13m

$489

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Wed 9/16

9:47 am-5:00 pm

1 stop7h 13m

Toronto Pearson Intl

Wed 9/23

5:45 pm-11:22 pm

1 stop5h 37m

$489

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Thu 9/3

6:28 am-12:33 pm

1 stop6h 05m

Toronto Pearson Intl

Sun 9/6

1:15 pm-9:25 pm

1 stop8h 10m

$495
Quickest round-trip

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Wed 9/2

5:59 pm-11:41 pm

1 stop5h 42m

Toronto Pearson Intl

Fri 9/4

7:45 am-12:26 pm

1 stop4h 41m

$507

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Thu 9/10

5:59 pm-11:26 pm

1 stop5h 27m

Toronto Pearson Intl

Wed 9/16

4:15 pm-10:55 pm

1 stop6h 40m

$507

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Fri 8/21

1:17 pm-9:59 pm

1 stop8h 42m

Toronto Pearson Intl

Sun 8/23

6:10 am-1:51 pm

1 stop7h 41m

$512

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Thu 9/24

5:59 pm-11:39 pm

1 stop5h 40m

Toronto Pearson Intl

Thu 10/1

11:38 am-8:33 pm

1 stop8h 55m

$524

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Thu 9/24

7:55 am-1:34 pm

1 stop5h 39m

Toronto Pearson Intl

Sun 10/4

6:15 am-2:58 pm

1 stop8h 43m

$524

LouisvilleToronto

SDF Louisville Intl - YYZ Toronto Pearson Intl

SDFYYZ

Louisville Intl

Fri 10/16

8:34 am-2:56 pm

1 stop6h 22m

Toronto Pearson Intl

Fri 10/23

3:47 pm-10:05 pm

1 stop6h 18m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Louisville to Toronto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Toronto in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

Have a flexible travel schedule? Discover the best time to fly to Toronto 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 Toronto

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

Currently, January is the cheapest month in which you can book a flight from Louisville to Toronto (average of $516). Flying from Louisville to Toronto in December is currently the most expensive (average of $918). 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.

What’s the top layover airport for flights from Louisville to Toronto?

Share of 1-stop round-trip flights from Louisville to Toronto chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 40% of 1-stop itineraries from Louisville to Toronto on Cheapflights.

What’s the cheapest layover airport for flights from Louisville to Toronto?

Average round-trip fare for 1-stop flights from Louisville to Toronto, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Detroit (DTW) is the most affordable 1-stop option, with an average round-trip price of $496.

What’s the fastest layover option from Louisville to Toronto?

Shortest average travel time for 1-stop one-way flights from Louisville to Toronto, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Detroit (DTW) have the shortest average one-way travel time for 1-stop routes: 3h 24m.

Which airport typically offers the quickest layover for flights from Louisville to Toronto?

Average layover duration for 1-stop one-way flights from Louisville to Toronto, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Detroit (DTW) offer the fastest connection on this route, with an average layover time of 0h 45m.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Louisville to Toronto?

    Louisville Intl (SDF) is the airport you will fly out of if you book a flight from Louisville to Toronto. You should not have trouble finding flights to Toronto from Louisville Intl; the airport handles an average of 0 outbound flights to Toronto per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Louisville airport to Toronto. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

  • How long is the flight from Louisville to Toronto?

    Departing from Louisville to Toronto will take you 4h 03m. Airlines will cover a distance of 496 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Louisville to Toronto round-trip?

    Delta, at $240, was found to be the cheapest airline from Louisville to Toronto. An alternate airline flying to your destination would be American Airlines. These flights start at 65% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to Toronto 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 Toronto?

    Currently, January is the cheapest month in which you can book a flight from Louisville to Toronto (average of $516). Flying from Louisville to Toronto in December is currently the most expensive (average of $918). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Louisville to Toronto

Discover the top 2 airlines that operate flights from Louisville to Toronto. 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 August 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$240Average$592FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$446Average$608FlexibilityNo cancel feeOn-time71%

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