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Cheap flights from Ontario to Louisville from C$ 242

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 13/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SDF
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Ontario to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 396

One-way from

C$ 242
Air Canada
  • Air Canada
  • 15/2-18/2
  • 2 total stops
  • 15h 04m total
  • Ontario to Louisville
Search Deals
United Airlines
  • United Airlines
  • 13/2
  • 1 total stop
  • 6h 12m total
  • Ontario to Louisville
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 21 January 2025.

Sun 16/27:45 a.m.YYZ - SDF
1 stop5h 32mUnited Airlines
Fri 21/210:05 a.m.SDF - YYZ
1 stop6h 41mUnited Airlines
Deal found 20/1C$ 402
Thu 13/211:30 a.m.YYZ - SDF
1 stop7h 27mAir Canada
Sun 16/210:05 a.m.SDF - YYZ
1 stop4h 13mAir Canada
Deal found 20/1C$ 404
Mon 17/36:45 a.m.YUL - SDF
1 stop11h 23mMultiple Airlines
Wed 26/36:00 a.m.SDF - YUL
1 stop11h 35mMultiple Airlines
Deal found 21/1C$ 416
Mon 3/37:05 a.m.YYZ - SDF
1 stop13h 20mMultiple Airlines
Mon 10/37:03 p.m.SDF - YYZ
2 stops24h 27mMultiple Airlines
Deal found 20/1C$ 422
Fri 14/211:08 a.m.YUL - SDF
1 stop7h 49mUnited Airlines
Mon 17/210:05 a.m.SDF - YUL
1 stop8h 42mUnited Airlines
Deal found 21/1C$ 430
Wed 19/311:25 a.m.YUL - SDF
1 stop9h 33mDelta
Sun 23/37:35 a.m.SDF - YUL
1 stop8h 25mDelta
Deal found 21/1C$ 448
Wed 19/37:14 a.m.YUL - SDF
1 stop17h 20mAmerican Airlines
Sat 22/35:00 a.m.SDF - YUL
1 stop17h 50mAmerican Airlines
Deal found 21/1C$ 473
Fri 4/46:30 a.m.YYZ - SDF
1 stop16h 41mWestJet
Fri 11/411:09 a.m.SDF - YYZ
1 stop8h 57mWestJet
Deal found 21/1C$ 475
Thu 17/47:00 a.m.YUL - SDF
1 stop14h 38mWestJet
Mon 21/46:26 p.m.SDF - YUL
1 stop21h 36mWestJet
Deal found 21/1C$ 489
Wed 2/73:59 p.m.YYZ - SDF
1 stop5h 37mDelta
Mon 21/76:26 p.m.SDF - YYZ
1 stop4h 29mDelta
Deal found 20/1C$ 748

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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Sun 16/2

7:55 a.m.-1:56 p.m.

1 stop6h 01m

Louisville Intl

Fri 21/2

6:50 a.m.-1:44 p.m.

1 stop6h 54m

C$ 402

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Thu 13/2

11:30 a.m.-6:57 p.m.

1 stop7h 27m

Louisville Intl

Sun 16/2

10:05 a.m.-2:18 p.m.

1 stop4h 13m

C$ 404

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Wed 26/2

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

2 stops10h 06m

Louisville Intl

Mon 3/3

10:05 a.m.-3:45 p.m.

1 stop5h 40m

C$ 407

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Mon 17/3

6:45 a.m.-6:08 p.m.

1 stop11h 23m

Louisville Intl

Wed 26/3

6:00 a.m.-5:35 p.m.

1 stop11h 35m

C$ 416

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Mon 3/3

7:05 a.m.-8:25 p.m.

1 stop13h 20m

Louisville Intl

Mon 10/3

7:03 p.m.-7:30 p.m.

2 stops24h 27m

C$ 422

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Fri 14/2

11:08 a.m.-6:57 p.m.

1 stop7h 49m

Louisville Intl

Mon 17/2

10:05 a.m.-6:47 p.m.

1 stop8h 42m

C$ 430

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Wed 19/3

11:25 a.m.-8:58 p.m.

1 stop9h 33m

Louisville Intl

Sun 23/3

7:35 a.m.-4:00 p.m.

1 stop8h 25m

C$ 448

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Wed 19/3

7:14 a.m.-12:34 a.m.

1 stop17h 20m

Louisville Intl

Sat 22/3

5:00 a.m.-10:50 p.m.

1 stop17h 50m

C$ 473

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Fri 4/4

6:30 a.m.-11:11 p.m.

1 stop16h 41m

Louisville Intl

Fri 11/4

11:09 a.m.-8:06 p.m.

1 stop8h 57m

C$ 475

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Thu 17/4

7:00 a.m.-9:38 p.m.

1 stop14h 38m

Louisville Intl

Mon 21/4

6:26 p.m.-4:02 p.m.

1 stop21h 36m

C$ 489

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Showing 1-10 of 17 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, November is the cheapest month in which you can book a flight from Region of Ontario to Louisville (average of C$ 337). 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 21 January 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 21 January 2025.
Read reviews from past customers who have flown United Airlines and WestJet 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
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

WestJet
7.2
Good
2,829 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Air Canada
7.0
Good
8,633 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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 United Airlines. According to our data, you can fly for as low as C$ 242. Users have also found prices from C$ 245 and C$ 284 on Delta and WestJet, 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, November is the cheapest month in which you can book a flight from Region of Ontario to Louisville (average of C$ 337). 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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Pierre Elliott Trudeau Intl to Nashville flights
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Windsor to Nashville flights
Saskatoon to Cincinnati flights
Grande Prairie to Nashville flights
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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 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 347AverageC$ 454FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 351AverageC$ 762FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 363AverageC$ 473FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 375AverageC$ 751FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 424AverageC$ 515FlexibilityNo 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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Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Louisville for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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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