What is the cheapest airline that flies from Louisville Intl to Ontario?

American Airlines and United Airlines are the most popular carriers operating from Louisville Intl to Ontario

When did momondo last update prices for flights from Louisville Intl Airport to Ontario?

Prices for flights from Louisville Intl Airport to Ontario are updated daily.

How old do you have to be to fly from Louisville Intl Airport to Ontario?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Louisville Intl Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 216 Cheap Flights from Louisville to Ontario in 2025/26

1 adult

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Find the cheapest flights from Louisville to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:05 p.m. - 9:18 p.m.

SDF

YOW

7h 13m1 stop

9:45 a.m. - 7:43 p.m.

YOW

SDF

9h 58m1 stop

C$ 476United Airlines

Mon, 26 Jan - Thu, 29 Jan

9:50 a.m. - 6:52 p.m.

SDF

YOW

9h 02m1 stop

6:00 a.m. - 1:24 p.m.

YOW

SDF

7h 24m2 stops

C$ 492United Airlines

Mon, 26 Jan - Thu, 29 Jan

3:33 p.m. - 12:45 a.m.

SDF

YUL

9h 12m1 stop

5:25 p.m. - 8:40 a.m.

YUL

SDF

15h 15m2 stops

C$ 502Multiple Airlines

Thu, 19 Feb - Sun, 22 Feb

2:05 p.m. - 9:18 p.m.

SDF

YOW

7h 13m1 stop

5:11 p.m. - 10:30 p.m.

YOW

SDF

5h 19m1 stop

C$ 526United Airlines

Thu, 5 Feb - Sun, 8 Feb

3:33 p.m. - 12:45 a.m.

SDF

YUL

9h 12m1 stop

4:35 p.m. - 12:21 p.m.

YUL

SDF

19h 46m1 stop

C$ 541Multiple Airlines

Thu, 19 Feb - Sun, 22 Feb

6:54 p.m. - 12:43 a.m.

SDF

YUL

53h 49m2 stops

8:00 a.m. - 2:41 p.m.

YUL

SDF

30h 41m1 stop

C$ 552Multiple Airlines

Mon, 19 Jan - Wed, 28 Jan

6:03 a.m. - 4:35 p.m.

SDF

YYZ

10h 32m1 stop

10:59 a.m. - 10:05 p.m.

YYZ

SDF

11h 06m1 stop

C$ 562American Airlines

Sat, 17 Jan - Sun, 18 Jan

2:05 p.m. - 9:18 p.m.

SDF

YOW

7h 13m2 stops

7:15 a.m. - 5:37 p.m.

YOW

SDF

10h 22m2 stops

C$ 611Air Canada

Mon, 26 Jan - Thu, 29 Jan

6:00 a.m. - 4:35 p.m.

SDF

YYZ

10h 35m2 stops

10:59 a.m. - 10:05 p.m.

YYZ

SDF

11h 06m1 stop

C$ 614American Airlines

Sat, 17 Jan - Sun, 18 Jan

6:28 a.m. - 4:23 p.m.

SDF

YOW

9h 55m2 stops

3:10 p.m. - 11:23 p.m.

YOW

SDF

8h 13m1 stop

C$ 640Air Canada

Thu, 5 Feb - Sun, 8 Feb

American Airlines flights from Louisville to Region of Ontario

Our best American Airlines deals on Louisville to Region of Ontario flight tickets

American Airlines

17 Jan

SDF6:03 a.m.Louisville Intl

10h 32m

1 stop

YYZ4:35 p.m.Toronto Pearson Intl

18 Jan

YYZ10:59 a.m.Toronto Pearson Intl

11h 06m

1 stop

SDF10:05 p.m.Louisville Intl

C$ 562

Find similar

American Airlines

17 Jan

SDF6:00 a.m.Louisville Intl

10h 35m

2 stops

YYZ4:35 p.m.Toronto Pearson Intl

18 Jan

YYZ10:59 a.m.Toronto Pearson Intl

11h 06m

1 stop

SDF10:05 p.m.Louisville Intl

C$ 614

Find similar

American Airlines

19 Jan

SDF7:13 p.m.Louisville Intl

19h 55m

1 stop

YUL3:08 p.m.Montreal Pierre Elliott Trudeau Intl

28 Jan

YUL3:50 p.m.Montreal Pierre Elliott Trudeau Intl

20h 42m

1 stop

SDF12:32 p.m.Louisville Intl

C$ 640

Find similar

WestJet flights from Louisville to Region of Ontario

Our best WestJet deals on Louisville to Region of Ontario flight tickets

WestJet

28 May

SDF6:00 a.m.Louisville Intl

14h 52m

2 stops

YYZ8:52 p.m.Toronto Pearson Intl

29 May

YYZ2:15 p.m.Toronto Pearson Intl

3h 26m

1 stop

SDF5:41 p.m.Louisville Intl

C$ 900

Find similar

WestJet

1 Mar

SDF7:50 a.m.Louisville Intl

4h 09m

1 stop

YUL11:59 a.m.Montreal Pierre Elliott Trudeau Intl

21 Mar

YUL12:42 p.m.Montreal Pierre Elliott Trudeau Intl

6h 07m

1 stop

SDF6:49 p.m.Louisville Intl

C$ 927

Find similar

WestJet

28 May

SDF7:30 p.m.Louisville Intl

4h 34m

1 stop

YYZ12:04 a.m.Toronto Pearson Intl

29 May

YYZ6:15 a.m.Toronto Pearson Intl

6h 00m

1 stop

SDF12:15 p.m.Louisville Intl

C$ 974

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Mon 26/1

2:05 p.m.-9:18 p.m.

1 stop7h 13m

Ottawa

Thu 29/1

9:45 a.m.-7:43 p.m.

1 stop9h 58m

C$ 476

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Mon 26/1

9:50 a.m.-6:52 p.m.

1 stop9h 02m

Ottawa

Thu 29/1

6:00 a.m.-1:24 p.m.

2 stops7h 24m

C$ 492

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Thu 19/2

3:33 p.m.-12:45 a.m.

1 stop9h 12m

Montreal Pierre Elliott Trudeau Intl

Sun 22/2

5:25 p.m.-8:40 a.m.

2 stops15h 15m

C$ 502

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 5/2

2:05 p.m.-9:18 p.m.

1 stop7h 13m

Ottawa

Sun 8/2

5:11 p.m.-10:30 p.m.

1 stop5h 19m

C$ 526

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Thu 19/2

3:33 p.m.-12:45 a.m.

1 stop9h 12m

Montreal Pierre Elliott Trudeau Intl

Sun 22/2

4:35 p.m.-12:21 p.m.

1 stop19h 46m

C$ 541

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Mon 19/1

6:54 p.m.-12:43 a.m.

2 stops53h 49m

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

8:00 a.m.-2:41 p.m.

1 stop30h 41m

C$ 552

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Sat 17/1

6:03 a.m.-4:35 p.m.

1 stop10h 32m

Toronto Pearson Intl

Sun 18/1

10:59 a.m.-10:05 p.m.

1 stop11h 06m

C$ 562

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Mon 26/1

2:05 p.m.-9:18 p.m.

2 stops7h 13m

Ottawa

Thu 29/1

7:15 a.m.-5:37 p.m.

2 stops10h 22m

C$ 611

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Sat 17/1

6:00 a.m.-4:35 p.m.

2 stops10h 35m

Toronto Pearson Intl

Sun 18/1

10:59 a.m.-10:05 p.m.

1 stop11h 06m

C$ 614

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 5/2

6:28 a.m.-4:23 p.m.

2 stops9h 55m

Ottawa

Sun 8/2

3:10 p.m.-11:23 p.m.

1 stop8h 13m

C$ 640

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is in the afternoon. Flights from Louisville to Region of Ontario during this time can be as low as C$ 648. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 767 on average. Flights to Region of Ontario from Louisville in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Cheap Louisville to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Region of Ontario

Fastest flight time	6h 24m
Direct flights	None

The fastest flight from Louisville to Region of Ontario takes 6h 24m

There are no direct flights from Louisville to Region of Ontario. There are no popular flight routes from Louisville to Region of Ontario.

Search flight deals

When did momondo last update prices for flights from Louisville Intl Airport to Ontario?
Prices for flights from Louisville Intl Airport to Ontario are updated daily.
How old do you have to be to fly from Louisville Intl Airport to Ontario?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Louisville Intl Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Ontario?

Finding the right flight to Ontario from Louisville is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

Can I find flights from Louisville to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Louisville on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Louisville to Ontario?

momondo helps you find the best flight between Louisville and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Louisville to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Louisville to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.