How long is the flight from Region of Ontario to Louisville?

A quick flight from Region of Ontario to Louisville can take about 5h 28m. United Airlines provides one of the quickest options available for as low as $304. There are 715 mi between Region of Ontario and Louisville.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

When deciding which route to take from Region of Ontario to Louisville consider Montreal Pierre Elliott Trudeau Intl - Louisville Intl, Toronto Pearson Intl - Louisville Intl or Ottawa - Louisville Intl as they are the most popular.

What airport do you fly into for flights to Louisville from Ontario?

Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly into when you book flights from Ontario to Louisville.

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.

$168+ Flights from Ontario to Louisville

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Cheap 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 diciembre 15, 2025.

dom. 12/285:00 amYOW - SDF

2 stops17h 30mUnited Airlines

dom. 1/1811:10 amSDF - YOW

1 stop10h 08mUnited Airlines

Deal found 12/13

$486

dom. 12/289:10 amYOW - SDF

2 stops12h 44mAmerican Airlines

dom. 1/186:00 amSDF - YOW

2 stops10h 53mAmerican Airlines

Deal found 12/13

$551

sáb. 12/276:00 amYUL - SDF

1 stop16h 30mUnited Airlines

vie. 5/18:40 amSDF - YUL

1 stop4h 30mUnited Airlines

Deal found 12/13

$591

mar. 12/307:08 amYUL - SDF

1 stop17h 08mAmerican Airlines

vie. 5/18:15 pmSDF - YUL

1 stop17h 20mAmerican Airlines

Deal found 12/13

$607

mar. 12/2310:00 amYYZ - SDF

1 stop4h 44mUnited Airlines

mar. 1/68:29 amSDF - YYZ

1 stop11h 16mUnited Airlines

Deal found 12/14

$627

jue. 12/256:00 amYUL - SDF

1 stop14h 32mUnited Airlines

mié. 5/66:00 amSDF - YUL

1 stop7h 10mUnited Airlines

Deal found 12/13

$637

mar. 12/307:08 amYUL - SDF

1 stop11h 13mAmerican Airlines

vie. 1/28:05 amSDF - YUL

1 stop7h 05mAmerican Airlines

Deal found 12/14

$640

mar. 12/238:30 pmYYZ - SDF

1 stop27h 29mMultiple Airlines

mar. 1/65:05 amSDF - YYZ

2 stops43h 06mMultiple Airlines

Deal found 12/14

$646

sáb. 12/276:00 amYUL - SDF

1 stop11h 28mAir Canada

mar. 5/56:00 pmSDF - YUL

2 stops7h 51mAir Canada

Deal found 12/13

$651

mar. 12/239:15 amYUL - SDF

1 stop5h 29mUnited Airlines

dom. 1/45:40 amSDF - YUL

1 stop8h 20mUnited Airlines

Deal found 12/13

$661

mié. 12/318:00 amYUL - SDF

1 stop15h 59mMultiple Airlines

lun. 5/47:48 pmSDF - YUL

2 stops22h 07mMultiple Airlines

Deal found 12/13

$664

dom. 12/2111:38 amYYZ - SDF

1 stop11h 52mAmerican Airlines

dom. 12/287:00 amSDF - YYZ

1 stop10h 29mAmerican Airlines

Deal found 12/14

$673

Best flights from Ontario to Louisville
Discover carefully curated flight deals from Ontario to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 15, 2025.

mar. 1/137:15 amYYZ - SDF

1 stop29h 45mMultiple Airlines

mar. 1/203:36 pmSDF - YYZ

2 stops28h 35mMultiple Airlines

Deal found 12/15

$282

dom. 1/115:55 pmYOW - SDF

1 stop5h 28mUnited Airlines

dom. 1/188:29 amSDF - YOW

1 stop8h 43mUnited Airlines

Deal found 12/13

$304

vie. 2/2711:38 amYYZ - SDF

1 stop9h 45mAmerican Airlines

sáb. 2/286:32 amSDF - YYZ

1 stop9h 30mAmerican Airlines

Deal found 12/14

$402

lun. 3/235:40 amYOW - SDF

2 stops11h 31mDelta

vie. 3/2712:03 pmSDF - YOW

2 stops12h 36mDelta

Deal found 12/13

$443

dom. 1/2512:15 pmYYZ - SDF

3 stops29h 49mMultiple Airlines

vie. 1/301:55 pmSDF - YYZ

1 stop10h 16mMultiple Airlines

Deal found 12/14

$321

jue. 1/296:45 amYUL - SDF

2 stops30h 15mMultiple Airlines

jue. 2/53:36 pmSDF - YUL

1 stop24h 46mMultiple Airlines

Deal found 12/15

$332

lun. 3/235:55 pmYOW - SDF

1 stop6h 04mUnited Airlines

vie. 3/275:35 amSDF - YOW

2 stops11h 43mUnited Airlines

Deal found 12/12

$401

lun. 1/1910:59 amYYZ - SDF

1 stop11h 06mAmerican Airlines

sáb. 1/246:03 amSDF - YYZ

1 stop10h 32mAmerican Airlines

Deal found 12/13

$414

sáb. 1/248:55 pmYYZ - SDF

1 stop17h 46mMultiple Airlines

lun. 2/26:54 pmSDF - YYZ

1 stop15h 47mMultiple Airlines

Deal found 12/15

$344

dom. 12/285:00 amYOW - SDF

2 stops17h 30mUnited Airlines

dom. 1/1811:10 amSDF - YOW

1 stop10h 08mUnited Airlines

Deal found 12/13

$486

dom. 1/114:20 pmYOW - SDF

3 stops25h 44mMultiple Airlines

dom. 1/183:36 pmSDF - YOW

3 stops25h 17mMultiple Airlines

Deal found 12/13

$411

dom. 1/182:15 pmYUL - SDF

1 stop6h 50mDelta

mié. 1/2112:25 pmSDF - YUL

1 stop6h 12mDelta

Deal found 12/12

$561

vie. 3/68:30 pmYYZ - SDF

1 stop14h 35mMultiple Airlines

mié. 3/111:19 pmSDF - YYZ

1 stop10h 55mMultiple Airlines

Deal found 12/13

$414

lun. 1/53:00 pmYUL - SDF

1 stop8h 22mUnited Airlines

jue. 1/89:50 amSDF - YUL

1 stop5h 26mUnited Airlines

Deal found 12/14

$584

lun. 1/54:00 pmYUL - SDF

3 stops30h 49mMultiple Airlines

mié. 1/75:05 amSDF - YUL

2 stops19h 25mMultiple Airlines

Deal found 12/14

$558

lun. 1/56:45 amYUL - SDF

2 stops17h 14mMultiple Airlines

jue. 1/88:14 pmSDF - YUL

1 stop18h 40mMultiple Airlines

Deal found 12/14

$560

Last-minute flights from Ontario to Louisville
Discover last-minute flight deals from Ontario to Louisville. Data last updated diciembre 15, 2025 and is based on user searches.

dom. 12/285:00 amYOW - SDF

2 stops17h 30mUnited Airlines

dom. 1/1811:10 amSDF - YOW

1 stop10h 08mUnited Airlines

Deal found 12/13

$486

dom. 12/289:10 amYOW - SDF

2 stops12h 44mAmerican Airlines

dom. 1/186:00 amSDF - YOW

2 stops10h 53mAmerican Airlines

Deal found 12/13

$551

dom. 1/115:55 pmYOW - SDF

1 stop5h 28mUnited Airlines

dom. 1/188:29 amSDF - YOW

1 stop8h 43mUnited Airlines

Deal found 12/13

$304

dom. 1/117:00 amYOW - SDF

2 stops27h 07mMultiple Airlines

dom. 1/184:39 pmSDF - YOW

1 stop24h 34mMultiple Airlines

Deal found 12/13

$348

dom. 1/115:40 amYOW - SDF

2 stops11h 52mDelta

dom. 1/1810:55 amSDF - YOW

2 stops13h 47mDelta

Deal found 12/13

$371

mar. 1/137:15 amYYZ - SDF

1 stop29h 45mMultiple Airlines

mar. 1/203:36 pmSDF - YYZ

2 stops28h 35mMultiple Airlines

Deal found 12/15

$282

mié. 1/1410:59 amYYZ - SDF

1 stop11h 06mAmerican Airlines

lun. 1/266:00 amSDF - YYZ

1 stop10h 35mAmerican Airlines

Deal found 12/13

$423

mié. 1/1410:59 amYYZ - SDF

1 stop11h 06mAmerican Airlines

mié. 1/216:00 amSDF - YYZ

1 stop10h 35mAmerican Airlines

Deal found 12/14

$424

lun. 1/1910:59 amYYZ - SDF

1 stop11h 06mAmerican Airlines

sáb. 1/246:03 amSDF - YYZ

1 stop10h 32mAmerican Airlines

Deal found 12/13

$414

sáb. 1/248:55 pmYYZ - SDF

1 stop17h 46mMultiple Airlines

lun. 2/26:54 pmSDF - YYZ

1 stop15h 47mMultiple Airlines

Deal found 12/15

$344

dom. 1/2512:15 pmYYZ - SDF

3 stops29h 49mMultiple Airlines

vie. 1/306:54 pmSDF - YYZ

2 stops19h 26mMultiple Airlines

Deal found 12/14

$309

jue. 1/296:45 amYUL - SDF

2 stops30h 15mMultiple Airlines

jue. 2/53:36 pmSDF - YUL

1 stop24h 46mMultiple Airlines

Deal found 12/15

$332

One-way flights from Ontario to Louisville
Search for one-way flight options from Ontario to Louisville. Find affordable one-way fares based on user searches. Data last updated diciembre 15, 2025.

jue. 1/293:40 pmYYZ - SDF

1 stop26h 24mMultiple Airlines

Deal found 12/15

$168

mié. 1/288:00 amYUL - SDF

1 stop30h 41mMultiple Airlines

Deal found 12/13

$178

mié. 1/710:45 amYUL - SDF

3 stops27h 56mMultiple Airlines

Deal found 12/14

$180

mar. 1/65:25 pmYUL - SDF

2 stops30h 34mMultiple Airlines

Deal found 12/14

$200

mar. 1/276:45 amYUL - SDF

3 stops30h 15mMultiple Airlines

Deal found 12/13

$202

jue. 1/86:45 amYUL - SDF

2 stops30h 15mMultiple Airlines

Deal found 12/14

$220

vie. 1/96:45 amYUL - SDF

1 stop11h 19mMultiple Airlines

Deal found 12/14

$231

mar. 1/273:50 pmYUL - SDF

1 stop20h 42mAmerican Airlines

Deal found 12/13

$256

lun. 1/55:25 pmYUL - SDF

2 stops29h 24mMultiple Airlines

Deal found 12/14

$304

Find flight deals from Ontario to Louisville

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$282 (Kiwi.com)
One-way from	$168 (Kiwi.com)
Popular in	October
Cheapest in	February
Average price	$538

Provider with most accurate pricing for Toronto (YTO)-Louisville Intl flight deals.

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Provider most trusted by Cheapflights users for Toronto (YTO)-Louisville Intl flights.

Search Deals

From Ontario to Louisville Intl

Search Deals

One-way flight from Ontario to Louisville Intl

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($140 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($33 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

mar. 1/13

7:15 am-1:00 pm

1 stop29h 45m

Louisville Intl

mar. 1/20

3:36 pm-8:11 pm

2 stops28h 35m

$282

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

dom. 1/11

5:55 pm-11:23 pm

1 stop5h 28m

Louisville Intl

dom. 1/18

8:29 am-5:12 pm

1 stop8h 43m

$304

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

dom. 1/25

12:15 pm-6:04 pm

3 stops29h 49m

Louisville Intl

vie. 1/30

1:55 pm-12:11 am

1 stop10h 16m

$321

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

jue. 1/29

6:45 am-1:00 pm

2 stops30h 15m

Louisville Intl

jue. 2/5

3:36 pm-4:22 pm

1 stop24h 46m

$332

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

sáb. 1/24

8:55 pm-2:41 pm

1 stop17h 46m

Louisville Intl

lun. 2/2

6:54 pm-10:41 am

1 stop15h 47m

$344

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

lun. 3/23

5:55 pm-11:59 pm

1 stop6h 04m

Louisville Intl

vie. 3/27

5:35 am-5:18 pm

2 stops11h 43m

$401

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

vie. 2/27

11:38 am-9:23 pm

1 stop9h 45m

Louisville Intl

sáb. 2/28

6:32 am-4:02 pm

1 stop9h 30m

$402

OttawaLouisville

YOW - SDF

YOWSDF

Ottawa

dom. 1/11

4:20 pm-6:04 pm

3 stops25h 44m

Louisville Intl

dom. 1/18

3:36 pm-4:53 pm

3 stops25h 17m

$411

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

lun. 1/19

10:59 am-10:05 pm

1 stop11h 06m

Louisville Intl

sáb. 1/24

6:03 am-4:35 pm

1 stop10h 32m

$414

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

vie. 3/6

8:30 pm-11:05 am

1 stop14h 35m

Louisville Intl

mié. 3/11

1:19 pm-12:14 am

1 stop10h 55m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 25 results

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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Louisville

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 $139). Flying from Region of Ontario to Louisville in October is currently the most expensive (average of $426). 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?

When flying from Region of Ontario to Louisville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 25% versus a flight in the morning.

Related info for your journey

What airport do you fly into for flights to Louisville from Ontario?
Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly into when you book flights from Ontario to Louisville.
How long is the flight from Region of Ontario to Louisville?
A quick flight from Region of Ontario to Louisville can take about 5h 28m. United Airlines provides one of the quickest options available for as low as $304. There are 715 mi between Region of Ontario and Louisville.
What are the most popular routes from Region of Ontario to Louisville?
When deciding which route to take from Region of Ontario to Louisville consider Montreal Pierre Elliott Trudeau Intl - Louisville Intl, Toronto Pearson Intl - Louisville Intl or Ottawa - Louisville Intl as they are the most popular.
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 $139). Flying from Region of Ontario to Louisville in October is currently the most expensive (average of $426). 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

Shepherdsville

Jeffersonville

Elizabethtown

Corydon

Bardstown

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Top 2 airlines flying from Ontario to Louisville

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$296	Average$468	FlexibilityNo cancel fee	On-time69%
WestJet	Cheapest$321	Average$556	FlexibilityNo cancel fee	On-time60%

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$168+ Cheap flights from Ontario to Louisville (SDF)

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Louisville with Cheapflights

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Cheap flight deals from Ontario to Louisville

Cheapest flights from Ontario to LouisvilleExplore 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 diciembre 15, 2025.

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 diciembre 15, 2025.

Find flight deals from Ontario to Louisville

Keep the following information in mind while searching for Ontario to Louisville flight deals. Data was last updated diciembre 15, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Louisville that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Louisville

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

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 diciembre 15, 2025.

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?

How long is the flight from Region of Ontario to Louisville?

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

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

How can I find direct flights from Ontario to Louisville?

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

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

Traveling to a place near Louisville?

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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.

Top 2 airlines flying from Ontario to Louisville

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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 diciembre 15, 2025.