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Cheap flights from Louisville to Ontario from C$ 148

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 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YYZ
28 nov. — 5 dic.1
1 adult
1 adult, Economy, 0 bags

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 29 octubre 2025.

Round-trip from

C$ 402

One-way from

C$ 148

Popular in

October

Cheapest in

November

Average price

C$ 1,044
American Airlines
  • American Airlines
  • 27/11-4/12
  • 2 total stops
  • 35h 39m total
  • Louisville to Ontario
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26/2
  • 26/2
  • 1 total stop
  • 12h 25m total
  • Louisville to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 48 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 29 octubre 2025.

jue. 27/1112:44 p.m.SDF - YYZ
1 stop23h 48mAmerican Airlines
jue. 4/126:00 a.m.YYZ - SDF
1 stop11h 51mAmerican Airlines
Deal found 28/10C$ 402
jue. 27/112:55 p.m.SDF - YYZ
2 stops23h 10mMultiple Airlines
jue. 4/128:30 p.m.YYZ - SDF
1 stop14h 01mMultiple Airlines
Deal found 28/10C$ 468
vie. 14/117:11 p.m.SDF - YYZ
1 stop16h 32mMultiple Airlines
lun. 17/117:00 a.m.YYZ - SDF
1 stop11h 16mMultiple Airlines
Deal found 29/10C$ 502
mié. 26/119:11 p.m.SDF - YYZ
1 stop18h 06mMultiple Airlines
mié. 3/125:15 p.m.YYZ - SDF
2 stops41h 16mMultiple Airlines
Deal found 26/10C$ 553
mar. 25/116:48 p.m.SDF - YUL
2 stops22h 07mMultiple Airlines
mar. 2/126:45 a.m.YUL - SDF
2 stops11h 08mMultiple Airlines
Deal found 27/10C$ 592
vie. 14/117:11 p.m.SDF - YYZ
1 stop16h 32mMultiple Airlines
dom. 16/119:35 a.m.YYZ - SDF
1 stop8h 41mMultiple Airlines
Deal found 28/10C$ 608
jue. 13/117:11 p.m.SDF - YYZ
1 stop16h 32mMultiple Airlines
dom. 16/114:00 p.m.YYZ - SDF
2 stops26h 16mMultiple Airlines
Deal found 28/10C$ 630
vie. 14/117:11 p.m.SDF - YUL
1 stop19h 59mMultiple Airlines
dom. 23/118:00 a.m.YUL - SDF
1 stop11h 36mMultiple Airlines
Deal found 28/10C$ 637
lun. 24/119:23 a.m.SDF - YUL
2 stops22h 09mMultiple Airlines
mar. 2/126:45 a.m.YUL - SDF
2 stops11h 08mMultiple Airlines
Deal found 29/10C$ 641
vie. 31/1011:47 a.m.SDF - YYZ
1 stop23h 56mMultiple Airlines
dom. 2/114:00 p.m.YYZ - SDF
2 stops26h 16mMultiple Airlines
Deal found 27/10C$ 641
vie. 12/1211:55 a.m.SDF - YUL
3 stops36h 35mMultiple Airlines
dom. 14/125:25 p.m.YUL - SDF
2 stops17h 06mMultiple Airlines
Deal found 28/10C$ 743
lun. 24/112:02 p.m.SDF - YUL
1 stop23h 58mUnited Airlines
mar. 2/124:45 p.m.YUL - SDF
1 stop20h 27mUnited Airlines
Deal found 29/10C$ 757

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 29 octubre 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

dom. 18/1

6:00 a.m.-2:20 p.m.

1 stop8h 20m

Toronto Pearson Intl

dom. 25/1

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

3 stops29h 49m

C$ 485

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

vie. 14/11

7:11 p.m.-11:43 a.m.

1 stop16h 32m

Toronto Pearson Intl

lun. 17/11

7:00 a.m.-6:16 p.m.

1 stop11h 16m

C$ 502

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

mié. 18/2

10:45 a.m.-4:30 p.m.

1 stop5h 45m

Ottawa

dom. 22/2

5:48 p.m.-11:59 p.m.

1 stop6h 11m

C$ 507

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

mié. 26/11

9:11 p.m.-5:53 p.m.

2 stops20h 42m

Toronto Pearson Intl

mié. 3/12

5:15 p.m.-11:00 a.m.

2 stops17h 45m

C$ 588

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

mar. 25/11

6:48 p.m.-4:55 p.m.

2 stops22h 07m

Montreal Pierre Elliott Trudeau Intl

mar. 2/12

6:45 a.m.-5:53 p.m.

2 stops11h 08m

C$ 592

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

mié. 18/2

6:15 a.m.-4:18 p.m.

2 stops10h 03m

Ottawa

dom. 22/2

5:48 p.m.-11:59 p.m.

1 stop6h 11m

C$ 619

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

jue. 13/11

7:11 p.m.-11:43 a.m.

1 stop16h 32m

Toronto Pearson Intl

dom. 16/11

4:00 p.m.-6:16 p.m.

2 stops26h 16m

C$ 630

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

vie. 14/11

7:11 p.m.-3:10 p.m.

1 stop19h 59m

Montreal Pierre Elliott Trudeau Intl

dom. 23/11

8:00 a.m.-7:36 p.m.

1 stop11h 36m

C$ 637

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

lun. 24/11

9:23 a.m.-7:32 a.m.

2 stops22h 09m

Montreal Pierre Elliott Trudeau Intl

mar. 2/12

6:45 a.m.-5:53 p.m.

2 stops11h 08m

C$ 641

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

vie. 14/11

9:54 a.m.-8:08 p.m.

2 stops10h 14m

Toronto Pearson Intl

dom. 16/11

9:35 a.m.-6:16 p.m.

1 stop8h 41m

C$ 641

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 25 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, December is the cheapest month in which you can book a flight from Louisville to Region of Ontario (average of C$ 256). Flying from Louisville to Region of Ontario in September is currently the most expensive (average of C$ 456). 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 Region of Ontario?

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 and Air Canada fly from Louisville to Region of Ontario in about 5h 45m. The time it takes to get you to your destination can typically vary by up to 4h 18m. Louisville and Region of Ontario are separated by a distance of 1151 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Louisville to Region of Ontario one-way?

    C$ 163 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from C$ 464 and C$ 524, respectively.

  • 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, December is the cheapest month in which you can book a flight from Louisville to Region of Ontario (average of C$ 256). Flying from Louisville to Region of Ontario in September is currently the most expensive (average of C$ 456). 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

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

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