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Cheap flights from Ontario to Louisville from C$ 226

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SDF
25 Feb — 4 Mar1
1 adult

Cheap flight deals from Ontario to Louisville

Keep the following information in mind while searching for Ontario to Louisville flight deals. Data was last updated 20 February 2025.

Round-trip from

C$ 365

One-way from

C$ 226

Popular in

January

Cheapest in

February

Average price

C$ 443
Air Canada
  • Air Canada
  • 16/4-25/4
  • 2 total stops
  • 8h 55m total
  • Ontario to Louisville
Search Deals
10/5
  • 10/5
  • 1 total stop
  • 6h 22m total
  • Ontario to Louisville
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Ontario to Louisville

Cheapest flights from Ontario to Louisville
Explore the most affordable flight options available from Ontario to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2025.

Wed 16/410:05 a.m.YYZ - SDF
1 stop4h 35mAir Canada
Fri 25/47:29 a.m.SDF - YYZ
1 stop4h 20mAir Canada
Deal found 19/2C$ 365
Sun 6/48:15 p.m.YYZ - SDF
1 stop16h 12mMultiple Airlines
Sun 13/46:12 p.m.SDF - YYZ
1 stop19h 43mMultiple Airlines
Deal found 20/2C$ 375
Mon 10/37:55 a.m.YYZ - SDF
1 stop7h 35mDelta
Tue 18/311:05 a.m.SDF - YYZ
1 stop5h 59mDelta
Deal found 20/2C$ 416
Thu 13/36:35 p.m.YUL - SDF
1 stop23h 46mMultiple Airlines
Wed 19/35:33 p.m.SDF - YUL
2 stops30h 17mMultiple Airlines
Deal found 19/2C$ 423
Sun 9/34:30 p.m.YYZ - SDF
1 stop8h 04mAmerican Airlines
Sat 22/37:45 a.m.SDF - YYZ
1 stop7h 45mAmerican Airlines
Deal found 19/2C$ 429
Thu 13/37:55 a.m.YUL - SDF
1 stop15h 35mAir Canada
Wed 19/36:00 a.m.SDF - YUL
1 stop6h 50mAir Canada
Deal found 19/2C$ 440
Thu 13/31:15 p.m.YUL - SDF
1 stop10h 15mUnited Airlines
Wed 19/310:05 a.m.SDF - YUL
1 stop7h 45mUnited Airlines
Deal found 19/2C$ 446
Tue 1/41:30 p.m.YUL - SDF
2 stops9h 45mWestJet
Fri 4/46:00 a.m.SDF - YUL
1 stop10h 52mWestJet
Deal found 19/2C$ 491
Thu 8/512:15 p.m.YYZ - SDF
1 stop5h 25mWestJet
Sun 11/57:20 a.m.SDF - YYZ
1 stop4h 06mWestJet
Deal found 19/2C$ 501
Mon 3/312:20 p.m.YYZ - SDF
2 stops10h 06mUnited Airlines
Sat 8/36:00 a.m.SDF - YYZ
1 stop6h 06mUnited Airlines
Deal found 20/2C$ 504
Mon 3/35:35 p.m.YUL - SDF
2 stops16h 49mAmerican Airlines
Thu 6/35:00 a.m.SDF - YUL
1 stop8h 35mAmerican Airlines
Deal found 20/2C$ 540
Mon 3/312:55 p.m.YUL - SDF
1 stop21h 46mBritish Airways
Thu 6/35:00 a.m.SDF - YUL
1 stop8h 35mBritish Airways
Deal found 20/2C$ 547

Find flights from Ontario to Louisville within your budget

Customize your flight search to find flights from Ontario to Louisville 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 20 February 2025.

Fly from

Ontario

Fly to

Louisville

Route

Depart

Return

Price

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Wed 16/4

10:05 a.m.-2:40 p.m.

1 stop4h 35m

Louisville Intl

Fri 25/4

7:29 a.m.-11:49 a.m.

1 stop4h 20m

C$ 365

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Sun 6/4

8:15 p.m.-12:27 p.m.

1 stop16h 12m

Louisville Intl

Sun 13/4

6:12 p.m.-1:55 p.m.

1 stop19h 43m

C$ 375

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Mon 10/3

7:55 a.m.-3:30 p.m.

1 stop7h 35m

Louisville Intl

Tue 18/3

11:05 a.m.-5:04 p.m.

1 stop5h 59m

C$ 416

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Thu 13/3

6:35 p.m.-6:21 p.m.

1 stop23h 46m

Louisville Intl

Wed 19/3

5:33 p.m.-11:50 p.m.

2 stops30h 17m

C$ 423

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Sun 9/3

4:30 p.m.-12:34 a.m.

1 stop8h 04m

Louisville Intl

Sat 22/3

7:45 a.m.-3:30 p.m.

1 stop7h 45m

C$ 429

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Thu 13/3

7:55 a.m.-11:30 p.m.

1 stop15h 35m

Louisville Intl

Wed 19/3

6:00 a.m.-12:50 p.m.

1 stop6h 50m

C$ 440

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Thu 13/3

1:15 p.m.-11:30 p.m.

1 stop10h 15m

Louisville Intl

Wed 19/3

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

1 stop7h 45m

C$ 446

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Tue 1/4

1:30 p.m.-11:15 p.m.

2 stops9h 45m

Louisville Intl

Fri 4/4

6:00 a.m.-4:52 p.m.

1 stop10h 52m

C$ 491

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 8/5

12:15 p.m.-5:40 p.m.

1 stop5h 25m

Louisville Intl

Sun 11/5

7:20 a.m.-11:26 a.m.

1 stop4h 06m

C$ 501

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Mon 3/3

12:20 p.m.-10:26 p.m.

2 stops10h 06m

Louisville Intl

Sat 8/3

6:00 a.m.-12:06 p.m.

1 stop6h 06m

C$ 504

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

Showing 1-10 of 18 results
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Best time to book a flight from Ontario to Louisville

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

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

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

Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Louisville (average of C$ 332). Flying from Region of Ontario to Louisville in September is currently the most expensive (average of C$ 487). 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 ON to SDF?

Find hourly flight availability from Ontario to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 February 2025.

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

Rainfall in Louisville by month

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

In terms of precipitation, rainfall in Louisville ranges from 79.0 - 135.0 mm per month. May is typically the wettest month, when rainfall can reach 135.0 mm. September is typically the driest time to visit Louisville when rainfall is around 79.0 mm.

Temperature in Louisville by month

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

If weather is an important factor for your trip to Louisville, 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 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated 20 February 2025.
Read reviews from past customers who have flown Delta, United Airlines and American Airlines from Ontario to Louisville. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Ontario to Louisville. 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 into for flights to Louisville from Ontario?

    Located just 8.5 km from the city centre, Louisville Intl (SDF) is the airport most travelers will use when flying to Louisville from Ontario.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 246. Users have also found prices from C$ 249 and C$ 268 on United Airlines and American Airlines, respectively.

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

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

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Louisville (average of C$ 332). Flying from Region of Ontario to Louisville in September is currently the most expensive (average of C$ 487). 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 Ontario to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Louisville

Discover the top 5 airlines that operate flights from Ontario to Louisville. 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 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 197AverageC$ 737FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 343AverageC$ 448FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 358AverageC$ 467FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 370AverageC$ 719FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 425AverageC$ 509FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Louisville flexibly with Cheapflights today.

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Not ready to book yet? You can track prices for flights from Ontario to Louisville on Cheapflights with our Price Alert feature and get notified when better prices are available.

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