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Cheap flights from Louisville to Ontario from C$ 174

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 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YYZ
13 Jan — 20 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Louisville to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Louisville to Ontario
Explore the most affordable flight options available from Louisville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 December 2025.

Wed 31/125:05 a.m.SDF - YYZ
1 stop9h 35mMultiple Airlines
Sun 4/18:20 p.m.YYZ - SDF
2 stops27h 39mMultiple Airlines
Deal found 13/12C$ 753
Tue 23/125:05 a.m.SDF - YYZ
1 stop30h 38mMultiple Airlines
Sun 28/1211:15 a.m.YYZ - SDF
1 stop12h 44mMultiple Airlines
Deal found 13/12C$ 810
Mon 22/125:05 a.m.SDF - YYZ
1 stop18h 15mMultiple Airlines
Fri 26/1210:15 a.m.YYZ - SDF
2 stops37h 44mMultiple Airlines
Deal found 11/12C$ 891
Wed 24/125:05 a.m.SDF - YYZ
1 stop9h 35mMultiple Airlines
Sun 28/127:10 a.m.YYZ - SDF
2 stops16h 49mMultiple Airlines
Deal found 13/12C$ 905
Sat 27/1210:50 a.m.SDF - YUL
1 stop10h 27mUnited Airlines
Wed 31/127:00 a.m.YUL - SDF
1 stop8h 03mUnited Airlines
Deal found 12/12C$ 1,113
Mon 22/122:00 p.m.SDF - YYZ
1 stop7h 21mUnited Airlines
Fri 26/123:30 p.m.YYZ - SDF
1 stop7h 00mUnited Airlines
Deal found 11/12C$ 1,198
Sat 27/122:00 p.m.SDF - YUL
1 stop7h 17mAir Canada
Wed 31/1210:30 a.m.YUL - SDF
2 stops8h 41mAir Canada
Deal found 12/12C$ 1,224
Tue 16/126:16 p.m.SDF - YUL
1 stop5h 16mWestJet
Thu 18/127:10 a.m.YUL - SDF
1 stop11h 35mWestJet
Deal found 12/12C$ 1,349
Tue 23/126:40 a.m.SDF - YYZ
2 stops16h 58mWestJet
Sun 28/125:15 p.m.YYZ - SDF
1 stop5h 43mWestJet
Deal found 14/12C$ 1,447
Wed 24/124:49 p.m.SDF - YYZ
2 stops29h 04mWestJet
Sun 28/126:45 p.m.YYZ - SDF
2 stops16h 41mWestJet
Deal found 13/12C$ 1,596

Find flight deals from Louisville to Ontario

Keep the following information in mind while searching for Louisville to Ontario flight deals. Data was last updated 14 December 2025.

Round-trip from

C$ 365

One-way from

C$ 174

Popular in

October

Cheapest in

February

Average price

C$ 968
27/1-3/2
  • 27/1-3/2
  • 2 total stops
  • 37h 29m total
  • Louisville to Ontario
Search Deals
27/1
  • 27/1
  • 1 total stop
  • 7h 44m total
  • Louisville to Ontario
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 265 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville 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 629,999 searches. Data last updated 14 December 2025.
Use the filters below to find and compare flights from Louisville to Ontario that are best for you.

Fly from

Louisville

Fly to

Ontario

Route

Depart

Return

Price

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 27/1

3:36 p.m.-11:20 p.m.

1 stop7h 44m

Toronto Pearson Intl

Tue 3/2

7:15 a.m.-1:00 p.m.

1 stop29h 45m

C$ 365

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 2/2

1:55 p.m.-12:50 a.m.

1 stop10h 55m

Toronto Pearson Intl

Sun 8/2

12:15 p.m.-6:04 p.m.

3 stops29h 49m

C$ 373

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Sun 11/1

3:36 p.m.-8:11 p.m.

2 stops28h 35m

Toronto Pearson Intl

Thu 15/1

7:10 a.m.-1:00 p.m.

1 stop29h 50m

C$ 399

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Sun 11/1

8:14 p.m.-11:54 p.m.

1 stop27h 40m

Toronto Pearson Intl

Wed 14/1

3:40 p.m.-2:41 p.m.

1 stop23h 01m

C$ 414

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 12/1

6:54 p.m.-9:19 p.m.

2 stops26h 25m

Toronto Pearson Intl

Thu 15/1

7:10 a.m.-3:49 p.m.

1 stop8h 39m

C$ 443

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 13/1

3:36 p.m.-11:20 p.m.

1 stop7h 44m

Toronto Pearson Intl

Thu 15/1

7:10 a.m.-1:00 p.m.

1 stop29h 50m

C$ 476

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 12/1

1:55 p.m.-12:25 a.m.

1 stop10h 30m

Toronto Pearson Intl

Wed 14/1

3:40 p.m.-2:41 p.m.

1 stop23h 01m

C$ 483

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 13/1

3:36 p.m.-11:20 p.m.

1 stop7h 44m

Toronto Pearson Intl

Wed 14/1

3:40 p.m.-2:41 p.m.

1 stop23h 01m

C$ 483

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Fri 13/2

1:19 p.m.-12:30 a.m.

1 stop11h 11m

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

5:25 p.m.-2:38 p.m.

2 stops21h 13m

C$ 490

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Mon 5/1

9:55 a.m.-11:54 p.m.

1 stop13h 59m

Ottawa

Fri 9/1

2:15 p.m.-7:43 p.m.

1 stop5h 28m

C$ 500

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/12

Showing 1-10 of 40 results
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Best time to book a flight from Louisville to Ontario

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

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

Currently, April is the cheapest month in which you can book a flight from Louisville to Region of Ontario (average of C$ 266). Flying from Louisville to Region of Ontario in September is currently the most expensive (average of C$ 449). 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 Ontario. 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 Ontario?

    Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Ontario. Louisville Intl is conveniently located just 8.5 km from Louisville’s city centre.

  • How long is the flight from Louisville to Region of Ontario?

    Airlines like United Airlines fly from Louisville to Region of Ontario in about 13h 59m. The time it takes to get you to your destination can typically vary by up to . Louisville and Region of Ontario are separated by a distance of 1151 km.

  • What are the most popular routes from Louisville to Region of Ontario?

    The most popular route from Louisville to Region of Ontario is Louisville Intl - Toronto Pearson Intl. You may also consider Louisville Intl - Montreal Pierre Elliott Trudeau Intl or Louisville Intl - Ottawa.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Louisville to Region of Ontario (average of C$ 266). Flying from Louisville to Region of Ontario in September is currently the most expensive (average of C$ 449). 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 Louisville to Ontario

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

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How does Cheapflights help users find flights from Louisville to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Louisville to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Louisville to Ontario?

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Yes! Cheapflights helps users easily find flights from Louisville to Ontario with no change fees.

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