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Cheap flights from Louisville to Ontario from C$ 202

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YYZ
5 Apr — 12 Apr1
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 31 March 2025.

Round-trip from

C$ 362

One-way from

C$ 202

Popular in

December

Cheapest in

November

Average price

C$ 572
12/5-19/5
  • 12/5-19/5
  • 2 total stops
  • 39h 20m total
  • Louisville to Ontario
Search Deals
Air Canada
  • Air Canada
  • 14/5
  • 1 total stop
  • 4h 46m total
  • Louisville to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 165 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 31 March 2025.

Mon 12/56:48 p.m.SDF - YYZ
1 stop19h 17mMultiple Airlines
Mon 19/54:00 p.m.YYZ - SDF
1 stop20h 03mMultiple Airlines
Deal found 30/3C$ 362
Fri 11/45:45 a.m.SDF - YUL
1 stop9h 10mMultiple Airlines
Sun 13/43:55 p.m.YUL - SDF
1 stop30h 22mMultiple Airlines
Deal found 30/3C$ 409
Fri 20/68:05 a.m.SDF - YYZ
1 stop9h 07mDelta
Mon 23/61:25 p.m.YYZ - SDF
1 stop7h 49mDelta
Deal found 31/3C$ 504
Wed 30/45:45 a.m.SDF - YUL
2 stops11h 00mAmerican Airlines
Sun 4/54:04 p.m.YUL - SDF
1 stop5h 23mAmerican Airlines
Deal found 30/3C$ 547
Thu 1/510:08 a.m.SDF - YUL
1 stop7h 07mAir Canada
Wed 7/51:15 p.m.YUL - SDF
1 stop7h 10mAir Canada
Deal found 31/3C$ 548
Wed 30/44:46 p.m.SDF - YUL
2 stops31h 51mWestJet
Sun 4/56:45 a.m.YUL - SDF
2 stops8h 49mWestJet
Deal found 30/3C$ 667
Thu 10/47:03 p.m.SDF - YYZ
2 stops26h 08mWestJet
Thu 24/46:20 p.m.YYZ - SDF
1 stop5h 39mWestJet
Deal found 30/3C$ 716
Fri 4/46:00 a.m.SDF - YOW
1 stop11h 40mMultiple Airlines
Mon 7/45:55 a.m.YOW - SDF
2 stops14h 42mMultiple Airlines
Deal found 29/3C$ 737
Wed 13/86:00 a.m.SDF - YYZ
1 stop4h 04mAir Canada
Wed 20/810:19 a.m.YYZ - SDF
1 stop4h 31mAir Canada
Deal found 31/3C$ 756
Mon 30/610:00 a.m.SDF - YYZ
1 stop4h 19mUnited Airlines
Wed 2/712:05 p.m.YYZ - SDF
2 stops7h 36mUnited Airlines
Deal found 30/3C$ 773
Sun 17/88:40 a.m.SDF - YUL
2 stops13h 04mUnited Airlines
Sun 24/88:05 a.m.YUL - SDF
2 stops12h 57mUnited Airlines
Deal found 30/3C$ 1,075
Thu 10/411:04 a.m.SDF - YOW
1 stop10h 31mAir Canada
Sun 13/411:35 a.m.YOW - SDF
2 stops10h 55mAir Canada
Deal found 30/3C$ 1,312

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 31 March 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

Mon 12/5

6:48 p.m.-2:05 p.m.

1 stop19h 17m

Toronto Pearson Intl

Mon 19/5

4:00 p.m.-12:03 p.m.

1 stop20h 03m

C$ 362

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Fri 11/4

5:45 a.m.-2:55 p.m.

1 stop9h 10m

Montreal Pierre Elliott Trudeau Intl

Sun 13/4

3:55 p.m.-10:17 p.m.

1 stop30h 22m

C$ 409

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Fri 20/6

8:05 a.m.-5:12 p.m.

1 stop9h 07m

Toronto Pearson Intl

Mon 23/6

1:25 p.m.-9:14 p.m.

1 stop7h 49m

C$ 504

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Wed 30/4

5:45 a.m.-4:45 p.m.

2 stops11h 00m

Montreal Pierre Elliott Trudeau Intl

Sun 4/5

4:04 p.m.-9:27 p.m.

1 stop5h 23m

C$ 547

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Thu 1/5

10:08 a.m.-5:15 p.m.

1 stop7h 07m

Montreal Pierre Elliott Trudeau Intl

Wed 7/5

1:15 p.m.-8:25 p.m.

1 stop7h 10m

C$ 548

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Wed 30/4

4:46 p.m.-12:37 a.m.

2 stops31h 51m

Montreal Pierre Elliott Trudeau Intl

Sun 4/5

6:45 a.m.-3:34 p.m.

2 stops8h 49m

C$ 667

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Thu 10/4

7:03 p.m.-9:11 p.m.

2 stops26h 08m

Toronto Pearson Intl

Thu 24/4

6:20 p.m.-11:59 p.m.

1 stop5h 39m

C$ 716

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Wed 13/8

6:00 a.m.-10:04 a.m.

1 stop4h 04m

Toronto Pearson Intl

Wed 20/8

10:19 a.m.-2:50 p.m.

1 stop4h 31m

C$ 756

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 30/6

10:00 a.m.-2:19 p.m.

1 stop4h 19m

Toronto Pearson Intl

Wed 2/7

12:05 p.m.-7:41 p.m.

2 stops7h 36m

C$ 773

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Sun 17/8

8:40 a.m.-9:44 p.m.

2 stops13h 04m

Montreal Pierre Elliott Trudeau Intl

Sun 24/8

8:05 a.m.-9:02 p.m.

2 stops12h 57m

C$ 1,075

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/3

Showing 1-10 of 21 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$ 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 31 March 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 31 March 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
7,899 reviews
Check prices

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
7,899 reviews
Delta
8.0
Very good
7,899 reviews
Check prices

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
8,614 reviews
Delta
8.0
Very good
7,899 reviews
Check prices

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
7,899 reviews
Check prices

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
2,789 reviews
Delta
8.0
Very good
7,899 reviews
Check prices

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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
9,004 reviews
Delta
8.0
Very good
7,899 reviews
Check prices

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

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$ 202 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from C$ 233 and C$ 238, 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 - Montreal Pierre Elliott Trudeau Intl. You may also consider Louisville Intl - Toronto Pearson 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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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 31 March 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 474AverageC$ 622FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

Can Cheapflights notify me if prices for flights from Louisville to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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