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Cheap flights from Louisville to Ontario from C$ 210

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 22/3. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YYZ
26 Feb — 5 Mar1
1 adult

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 21 February 2025.

Round-trip from

C$ 385

One-way from

C$ 210

Popular in

December

Cheapest in

October

Average price

C$ 560
6/4-13/4
  • 6/4-13/4
  • 2 total stops
  • 46h 09m total
  • Louisville to Ontario
Search Deals
22/3
  • 22/3
  • 1 total stop
  • 10h 46m total
  • Louisville to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 21 February 2025.

Sun 6/412:48 p.m.SDF - YYZ
1 stop25h 07mMultiple Airlines
Sun 13/48:15 p.m.YYZ - SDF
1 stop21h 02mMultiple Airlines
Deal found 20/2C$ 385
Mon 3/39:30 p.m.SDF - YUL
2 stops21h 30mMultiple Airlines
Sat 22/36:35 p.m.YUL - SDF
1 stop28h 23mMultiple Airlines
Deal found 20/2C$ 470
Thu 13/32:46 p.m.SDF - YYZ
1 stop9h 12mDelta
Sun 16/36:15 a.m.YYZ - SDF
1 stop9h 39mDelta
Deal found 20/2C$ 499
Thu 27/312:56 p.m.SDF - YYZ
1 stop6h 04mAmerican Airlines
Sun 30/311:49 a.m.YYZ - SDF
1 stop12h 45mAmerican Airlines
Deal found 20/2C$ 501
Sun 9/310:15 a.m.SDF - YYZ
1 stop5h 30mAir Canada
Sat 15/311:00 a.m.YYZ - SDF
1 stop6h 02mAir Canada
Deal found 20/2C$ 506
Wed 5/310:05 a.m.SDF - YUL
1 stop7h 45mAir Canada
Wed 26/39:15 a.m.YUL - SDF
1 stop13h 16mAir Canada
Deal found 20/2C$ 553
Wed 5/36:17 a.m.SDF - YUL
2 stops10h 38mAmerican Airlines
Wed 26/310:54 a.m.YUL - SDF
2 stops10h 03mAmerican Airlines
Deal found 20/2C$ 574
Fri 16/58:20 a.m.SDF - YUL
1 stop8h 49mDelta
Sun 18/56:00 a.m.YUL - SDF
1 stop7h 38mDelta
Deal found 20/2C$ 621
Mon 31/32:46 p.m.SDF - YUL
1 stop9h 13mWestJet
Sat 5/47:05 a.m.YUL - SDF
1 stop10h 14mWestJet
Deal found 20/2C$ 665
Sun 6/45:12 p.m.SDF - YXU
1 stop18h 08mMultiple Airlines
Sun 13/48:00 p.m.YXU - SDF
3 stops22h 31mMultiple Airlines
Deal found 20/2C$ 678
Thu 13/36:42 a.m.SDF - YYZ
2 stops23h 35mWestJet
Sun 16/36:30 a.m.YYZ - SDF
1 stop16h 45mWestJet
Deal found 20/2C$ 693
Thu 27/211:21 a.m.SDF - YUL
1 stop4h 37mUnited Airlines
Mon 10/311:08 a.m.YUL - SDF
1 stop8h 23mUnited Airlines
Deal found 20/2C$ 761

Find flights from Louisville to Ontario within your budget

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 21 February 2025.

Fly from

Louisville

Fly to

Ontario

Route

Depart

Return

Price

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Sun 6/4

12:48 p.m.-1:55 p.m.

1 stop25h 07m

Toronto Pearson Intl

Sun 13/4

8:15 p.m.-5:17 p.m.

1 stop21h 02m

C$ 385

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Mon 3/3

9:30 p.m.-7:00 p.m.

2 stops21h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 22/3

6:35 p.m.-10:58 p.m.

1 stop28h 23m

C$ 470

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Thu 13/3

2:46 p.m.-11:58 p.m.

1 stop9h 12m

Toronto Pearson Intl

Sun 16/3

6:15 a.m.-3:54 p.m.

1 stop9h 39m

C$ 499

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Thu 27/3

12:56 p.m.-7:00 p.m.

1 stop6h 04m

Toronto Pearson Intl

Sun 30/3

11:49 a.m.-12:34 a.m.

1 stop12h 45m

C$ 501

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Sun 9/3

10:15 a.m.-3:45 p.m.

1 stop5h 30m

Toronto Pearson Intl

Sat 15/3

11:00 a.m.-5:02 p.m.

1 stop6h 02m

C$ 506

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Wed 5/3

10:05 a.m.-5:50 p.m.

1 stop7h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 26/3

9:15 a.m.-10:31 p.m.

1 stop13h 16m

C$ 553

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Wed 5/3

6:17 a.m.-4:55 p.m.

2 stops10h 38m

Montreal Pierre Elliott Trudeau Intl

Wed 26/3

10:54 a.m.-8:57 p.m.

2 stops10h 03m

C$ 574

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Mon 31/3

6:59 p.m.-11:59 p.m.

1 stop5h 00m

Montreal Pierre Elliott Trudeau Intl

Sat 5/4

7:05 a.m.-5:19 p.m.

1 stop10h 14m

C$ 615

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Fri 16/5

8:20 a.m.-5:09 p.m.

1 stop8h 49m

Montreal Pierre Elliott Trudeau Intl

Sun 18/5

6:00 a.m.-1:38 p.m.

1 stop7h 38m

C$ 621

LouisvilleLondon

SDF - YXU

SDFYXU

Louisville Intl

Sun 6/4

5:12 p.m.-11:20 a.m.

1 stop18h 08m

London

Sun 13/4

8:00 p.m.-6:31 p.m.

3 stops22h 31m

C$ 678

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

Showing 1-10 of 17 results
1
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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.

Travel insights for flights from Louisville to Ontario

Get recent, data-driven insights about flights from Louisville to Ontario including ideal travel times, pricing trends, and more.

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$ 167). 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.

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

Find hourly flight availability from Louisville to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Region of Ontario as you normally would.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 21 February 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Louisville to Ontario to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet
7.2
Good
2,801 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada
7.0
Good
8,748 reviews
Delta
8.0
Very good
8,220 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    C$ 401 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from C$ 436 and C$ 501, 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 - 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, January is the cheapest month in which you can book a flight from Louisville to Region of Ontario (average of C$ 167). 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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How does Cheapflights help users find flights from Louisville to Ontario?

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