What is the cheapest airline to fly from Louisville to Toronto round-trip?

Delta, at $370, was found to be the cheapest airline from Louisville to Toronto.. This flight start at 30% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Toronto ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto when rainfall is around 2.0 in.

If weather is an important factor for your trip to Toronto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest time of day to fly from SDF to YTO?

When flying from Louisville to Toronto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Louisville-Toronto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Toronto flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 1 airline has flights from the Louisville airport to Toronto. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

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.

$152+ Flights from Louisville to Toronto

Q: How much does it cost to fly round-trip from Louisville to Toronto?

Airfare is below average for this route at the moment. Louisville to Toronto flights typically cost between $675 and $730 in January. The cheapest round-trip price found within the last 3 days was $267 on Multiple Airlines (Jan 13-Jan 20).

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1. Tell us where you want to go

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2. Select your favorite providers

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3. Compare prices and book

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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 December 18, 2025.

Tue 12/235:05 amSDF - YYZ

1 stop30h 38mMultiple Airlines

Sun 12/287:10 amYYZ - SDF

2 stops16h 49mMultiple Airlines

Deal found 12/16

$591

Fri 12/195:05 amSDF - YYZ

2 stops33h 15mMultiple Airlines

Sun 1/48:30 pmYYZ - SDF

1 stop27h 29mMultiple Airlines

Deal found 12/17

$648

Tue 12/305:05 amSDF - YYZ

2 stops40h 14mMultiple Airlines

Thu 1/13:40 pmYYZ - SDF

1 stop8h 19mMultiple Airlines

Deal found 12/16

$741

Tue 12/309:55 amSDF - YYZ

1 stop13h 51mUnited Airlines

Thu 1/17:40 pmYYZ - SDF

1 stop23h 31mUnited Airlines

Deal found 12/16

$762

Tue 12/236:40 amSDF - YYZ

2 stops16h 59mWestJet

Sun 12/2810:15 pmYYZ - SDF

2 stops24h 48mWestJet

Deal found 12/16

$926

Mon 12/226:40 amSDF - YYZ

2 stops29h 43mWestJet

Fri 12/265:10 pmYYZ - SDF

1 stop5h 53mWestJet

Deal found 12/17

$945

Best flights from Louisville to Toronto
Discover carefully curated flight deals from Louisville to Toronto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Tue 1/133:36 pmSDF - YYZ

1 stop30h 36mMultiple Airlines

Tue 1/207:15 amYYZ - SDF

1 stop29h 45mMultiple Airlines

Deal found 12/16

$267

Mon 1/121:55 pmSDF - YYZ

1 stop24h 21mMultiple Airlines

Wed 1/143:40 pmYYZ - SDF

1 stop23h 01mMultiple Airlines

Deal found 12/16

$305

Mon 1/121:55 pmSDF - YYZ

1 stop10h 30mMultiple Airlines

Tue 1/133:40 pmYYZ - SDF

2 stops21h 20mMultiple Airlines

Deal found 12/16

$318

Fri 1/231:55 pmSDF - YYZ

1 stop10h 16mMultiple Airlines

Mon 1/265:15 pmYYZ - SDF

2 stops21h 26mMultiple Airlines

Deal found 12/16

$322

Mon 1/191:55 pmSDF - YYZ

1 stop10h 16mMultiple Airlines

Sat 2/75:15 pmYYZ - SDF

1 stop22h 34mMultiple Airlines

Deal found 12/17

$345

Fri 1/301:55 pmSDF - YYZ

1 stop10h 16mMultiple Airlines

Fri 2/67:40 amYYZ - SDF

1 stop10h 24mMultiple Airlines

Deal found 12/16

$352

Last-minute flights from Louisville to Toronto
Discover last-minute flight deals from Louisville to Toronto. Data last updated December 18, 2025 and is based on user searches.

Mon 1/121:55 pmSDF - YYZ

1 stop24h 21mMultiple Airlines

Wed 1/143:40 pmYYZ - SDF

1 stop23h 01mMultiple Airlines

Deal found 12/16

$305

Mon 1/121:55 pmSDF - YYZ

1 stop10h 30mMultiple Airlines

Tue 1/133:40 pmYYZ - SDF

2 stops21h 20mMultiple Airlines

Deal found 12/16

$318

Tue 1/133:36 pmSDF - YYZ

1 stop30h 36mMultiple Airlines

Tue 1/207:15 amYYZ - SDF

1 stop29h 45mMultiple Airlines

Deal found 12/16

$267

Mon 1/191:55 pmSDF - YYZ

1 stop10h 16mMultiple Airlines

Sat 2/75:15 pmYYZ - SDF

1 stop22h 34mMultiple Airlines

Deal found 12/17

$345

Fri 1/231:55 pmSDF - YYZ

1 stop10h 16mMultiple Airlines

Mon 1/263:40 pmYYZ - SDF

1 stop23h 01mMultiple Airlines

Deal found 12/16

$291

Fri 1/301:55 pmSDF - YYZ

1 stop10h 16mMultiple Airlines

Fri 2/67:40 amYYZ - SDF

1 stop10h 24mMultiple Airlines

Deal found 12/16

$352

One-way flights from Louisville to Toronto
Search for one-way flight options from Louisville to Toronto. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Thu 2/266:32 amSDF - YYZ

1 stop11h 09mAmerican Airlines

Deal found 12/16

$152

Fri 2/276:32 amSDF - YYZ

1 stop9h 30mAmerican Airlines

Deal found 12/16

$209

Sun 4/195:34 amSDF - YYZ

1 stop8h 41mAmerican Airlines

Deal found 12/16

$295

Mon 4/209:55 amSDF - YYZ

1 stop13h 59mUnited Airlines

Deal found 12/17

$315

Mon 4/2010:32 amSDF - YYZ

1 stop12h 38mAmerican Airlines

Deal found 12/16

$316

Mon 4/209:00 amSDF - YYZ

2 stops12h 37mAir Canada

Deal found 12/16

$322

Thu 2/265:35 amSDF - YYZ

2 stops8h 39mUnited Airlines

Deal found 12/17

$338

Find flight deals from Louisville to Toronto

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$267 (Kiwi.com)
One-way from	$152 (American Airlines)
Popular in	October
Cheapest in	February
Average price	$703

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 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. 21% potential increase in price ($140 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 1/13

3:36 pm-10:12 pm

1 stop30h 36m

Toronto Pearson Intl

Tue 1/20

7:15 am-1:00 pm

1 stop29h 45m

$267

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 1/12

1:55 pm-2:16 pm

1 stop24h 21m

Toronto Pearson Intl

Wed 1/14

3:40 pm-2:41 pm

1 stop23h 01m

$305

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 1/12

1:55 pm-12:25 am

1 stop10h 30m

Toronto Pearson Intl

Tue 1/13

3:40 pm-1:00 pm

2 stops21h 20m

$318

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Fri 1/23

1:55 pm-12:11 am

1 stop10h 16m

Toronto Pearson Intl

Mon 1/26

5:15 pm-2:41 pm

2 stops21h 26m

$322

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 1/19

1:55 pm-12:11 am

1 stop10h 16m

Toronto Pearson Intl

Sat 2/7

5:15 pm-3:49 pm

1 stop22h 34m

$345

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Fri 1/30

1:55 pm-12:11 am

1 stop10h 16m

Toronto Pearson Intl

Fri 2/6

7:40 am-6:04 pm

1 stop10h 24m

$352

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Thu 2/26

6:32 am-5:41 pm

1 stop11h 09m

$152

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Fri 2/27

6:32 am-4:02 pm

1 stop9h 30m

$209

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Sun 4/19

5:34 am-2:15 pm

1 stop8h 41m

$295

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 4/20

9:55 am-11:54 pm

1 stop13h 59m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 13 results

Compare providers for flights from Louisville to Toronto

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Toronto in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Toronto flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, April is the cheapest month in which you can book a flight from Louisville to Toronto (average of $193). Flying from Louisville to Toronto in September is currently the most expensive (average of $326). 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 Louisville to Toronto?

Reviews of airlines servicing Toronto

Peruse reviews from past customers who have flown with Delta and WestJet from Louisville to Toronto to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,008 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

WestJet

7.2

Good

3,204 reviews

Delta

7.9

Good

8,008 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

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 1 airline has flights from the Louisville airport to Toronto. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.
What is the cheapest airline to fly from Louisville to Toronto round-trip?
Delta, at $370, was found to be the cheapest airline from Louisville to Toronto.. This flight start at 30% 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, April is the cheapest month in which you can book a flight from Louisville to Toronto (average of $193). Flying from Louisville to Toronto in September is currently the most expensive (average of $326). 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

Top airline flying from Louisville to Toronto

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$370	Average$578	FlexibilityNo cancel fee	On-timeN/A

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$152+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to Toronto with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Louisville to Toronto

Cheapest flights from Louisville to TorontoExplore 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 December 18, 2025.

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 December 18, 2025.

Find flight deals from Louisville to Toronto

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Toronto that are best for you.

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 December.

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.

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?

How much does it cost to fly round-trip from Louisville to Toronto?

Reviews of airlines servicing Toronto

Peruse reviews from past customers who have flown with Delta and WestJet from Louisville to Toronto to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What is the cheapest airline to fly from Louisville to Toronto round-trip?

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

How can I find direct flights from Louisville to Toronto?

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

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

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.

Alternative routes for Louisville to Toronto

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Louisville to Toronto

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Travel Smart

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 December 18, 2025.