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Cheap flights from Louisville to Ontario from C$ 101

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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YYZ
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Louisville to Ontario

Keep the following information in mind while searching for Louisville to Ontario flight deals. Data was last updated 11 September 2025.

Round-trip from

C$ 396

One-way from

C$ 101

Popular in

December

Cheapest in

November

Average price

C$ 819
4/10-7/10
  • 4/10-7/10
  • 2 total stops
  • 39h 52m total
  • Louisville to Ontario
Search Deals
23/10
  • 23/10
  • 1 total stop
  • 19h 07m total
  • Louisville to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Louisville to Ontario

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 11 September 2025.

Sat 4/108:23 a.m.SDF - YYZ
1 stop13h 57mMultiple Airlines
Tue 7/104:00 p.m.YYZ - SDF
1 stop25h 55mMultiple Airlines
Deal found 9/9C$ 396
Wed 1/1010:14 a.m.SDF - YYZ
2 stops27h 51mMultiple Airlines
Tue 7/104:00 p.m.YYZ - SDF
1 stop25h 55mMultiple Airlines
Deal found 10/9C$ 437
Fri 3/108:23 a.m.SDF - YYZ
1 stop15h 29mMultiple Airlines
Tue 7/104:00 p.m.YYZ - SDF
1 stop25h 55mMultiple Airlines
Deal found 9/9C$ 443
Sat 25/107:15 a.m.SDF - YUL
1 stop7h 05mMultiple Airlines
Sat 1/118:00 a.m.YUL - SDF
1 stop10h 03mMultiple Airlines
Deal found 10/9C$ 457
Sun 26/107:15 a.m.SDF - YYZ
2 stops28h 28mMultiple Airlines
Sun 2/1111:15 a.m.YYZ - SDF
1 stop23h 37mMultiple Airlines
Deal found 11/9C$ 461
Thu 23/107:15 a.m.SDF - YUL
1 stop7h 05mMultiple Airlines
Wed 29/106:45 a.m.YUL - SDF
1 stop9h 51mMultiple Airlines
Deal found 10/9C$ 499
Wed 24/910:14 a.m.SDF - YYZ
2 stops27h 51mMultiple Airlines
Mon 29/99:35 a.m.YYZ - SDF
1 stop12h 29mMultiple Airlines
Deal found 11/9C$ 504
Sat 25/107:15 a.m.SDF - YUL
1 stop7h 05mMultiple Airlines
Sun 2/118:00 a.m.YUL - SDF
1 stop10h 03mMultiple Airlines
Deal found 10/9C$ 521
Tue 23/98:23 a.m.SDF - YYZ
1 stop8h 39mMultiple Airlines
Mon 29/94:00 p.m.YYZ - SDF
1 stop17h 19mMultiple Airlines
Deal found 10/9C$ 543
Fri 3/106:12 p.m.SDF - YUL
1 stop17h 33mAmerican Airlines
Tue 7/1012:30 p.m.YUL - SDF
1 stop10h 33mAmerican Airlines
Deal found 9/9C$ 545
Sat 25/107:15 a.m.SDF - YUL
1 stop7h 05mMultiple Airlines
Fri 31/106:45 a.m.YUL - SDF
2 stops16h 02mMultiple Airlines
Deal found 10/9C$ 553
Sat 18/106:45 a.m.SDF - YUL
1 stop9h 54mAmerican Airlines
Sat 25/1012:30 p.m.YUL - SDF
1 stop10h 33mAmerican Airlines
Deal found 11/9C$ 575

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 11 September 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

Sat 4/10

8:23 a.m.-10:20 p.m.

1 stop13h 57m

Toronto Pearson Intl

Tue 7/10

4:00 p.m.-5:55 p.m.

1 stop25h 55m

C$ 396

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Sun 26/10

7:15 a.m.-2:20 p.m.

1 stop7h 05m

Toronto Pearson Intl

Sun 2/11

7:10 a.m.-10:47 p.m.

1 stop15h 37m

C$ 443

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Fri 3/10

8:23 a.m.-11:52 p.m.

1 stop15h 29m

Toronto Pearson Intl

Tue 7/10

4:00 p.m.-5:55 p.m.

1 stop25h 55m

C$ 443

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Wed 24/9

10:14 a.m.-2:05 p.m.

2 stops27h 51m

Toronto Pearson Intl

Mon 29/9

9:35 a.m.-10:04 p.m.

1 stop12h 29m

C$ 504

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Wed 1/10

10:14 a.m.-2:05 p.m.

3 stops27h 51m

Toronto Pearson Intl

Tue 7/10

4:00 p.m.-4:36 p.m.

2 stops24h 36m

C$ 534

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 23/9

8:23 a.m.-5:02 p.m.

1 stop8h 39m

Toronto Pearson Intl

Mon 29/9

4:00 p.m.-9:19 a.m.

1 stop17h 19m

C$ 543

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Wed 1/10

10:14 a.m.-12:59 p.m.

3 stops26h 45m

Ottawa

Fri 3/10

4:25 p.m.-9:19 a.m.

1 stop16h 54m

C$ 697

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Tue 21/10

7:00 a.m.-5:26 p.m.

1 stop10h 26m

Montreal Pierre Elliott Trudeau Intl

Wed 29/10

6:00 a.m.-8:44 p.m.

1 stop14h 44m

C$ 711

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Tue 21/10

8:45 a.m.-5:26 p.m.

1 stop8h 41m

Montreal Pierre Elliott Trudeau Intl

Sat 25/10

8:20 a.m.-6:33 p.m.

1 stop10h 13m

C$ 711

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Sat 18/10

7:00 a.m.-5:26 p.m.

1 stop10h 26m

Montreal Pierre Elliott Trudeau Intl

Sat 25/10

8:20 a.m.-6:33 p.m.

1 stop10h 13m

C$ 711

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 35 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, January is the cheapest month in which you can book a flight from Louisville to Region of Ontario (average of C$ 168). Flying from Louisville to Region of Ontario in July is currently the most expensive (average of C$ 258). 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.

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 11 September 2025.
Read reviews from past customers who have flown WestJet from Louisville to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,091 reviews
Check prices

Entertainment

6.1

Food

6.2

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

7.9

Reviews

1 / 20
6.0
Good

Roger,Jun 2025

MSP - YXE

Everything was good except the actual equipment. The aircraft was old and definitely showed its age, as far the interior cabin was concerned. WestJet definitely needs tio update the interior.
WestJet
7.2
Good
3,091 reviews
WestJet
7.2
Good
3,091 reviews
Check prices

Entertainment

6.1

Food

6.2

Boarding

7.4

Comfort

7.1

Overall

7.2

Crew

7.9

Reviews

1 / 20
6.0
Good

Roger,Jun 2025

MSP - YXE

Everything was good except the actual equipment. The aircraft was old and definitely showed its age, as far the interior cabin was concerned. WestJet definitely needs tio update the interior.

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 10h 26m. 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 1278 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 - London.

  • 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, January is the cheapest month in which you can book a flight from Louisville to Region of Ontario (average of C$ 168). Flying from Louisville to Region of Ontario in July is currently the most expensive (average of C$ 258). 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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Nashville to Pierre Elliott Trudeau Intl flights
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Blountville to Pierre Elliott Trudeau Intl flights
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Evansville to Pearson Intl flights

Top airline flying from Louisville to Ontario

Discover the top airline that operate flights from Louisville 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 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 516AverageC$ 656FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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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?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Louisville to Ontario.

Can Cheapflights find flights from Louisville to Ontario with no change fees?

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

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