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

American Airlines, United Airlines, and Air Canada 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$ 168 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.

1:55 p.m. - 9:25 p.m.SDF-YUL

7h 30m1 stop

6:45 a.m. - 12:21 p.m.YUL-SDF

29h 36m3 stops

C$ 443Multiple Airlines

Find Deal

qua, 11 fev - dom, 22 fev

11:21 a.m. - 2:40 p.m.SDF-YYZ

27h 19m1 stop

3:40 p.m. - 11:00 a.m.YYZ-SDF

19h 20m1 stop

C$ 446Multiple Airlines

Find Deal

sex, 12 dez - dom, 14 dez

9:00 a.m. - 5:07 p.m.SDF-YOW

8h 07m1 stop

5:48 p.m. - 11:59 p.m.YOW-SDF

6h 11m1 stop

C$ 511United Airlines

Find Deal

qua, 18 fev - dom, 22 fev

9:00 a.m. - 9:18 p.m.SDF-YOW

12h 18m1 stop

5:48 p.m. - 11:59 p.m.YOW-SDF

6h 11m1 stop

C$ 512United Airlines

Find Deal

qua, 18 fev - dom, 22 fev

6:30 a.m. - 4:03 p.m.SDF-YYZ

9h 33m1 stop

6:00 a.m. - 5:51 p.m.YYZ-SDF

11h 51m1 stop

C$ 523American Airlines

Find Deal

sáb, 13 dez - dom, 14 dez

7:38 a.m. - 4:03 p.m.SDF-YYZ

8h 25m1 stop

6:00 a.m. - 5:51 p.m.YYZ-SDF

11h 51m1 stop

C$ 584American Airlines

Find Deal

sáb, 13 dez - dom, 14 dez

6:15 a.m. - 4:23 p.m.SDF-YOW

10h 08m2 stops

5:48 p.m. - 11:59 p.m.YOW-SDF

6h 11m1 stop

C$ 625Air Canada

Find Deal

qua, 18 fev - dom, 22 fev

12:51 p.m. - 12:39 a.m.SDF-YOW

11h 48m2 stops

5:40 a.m. - 5:55 p.m.YOW-SDF

12h 15m2 stops

C$ 734Delta

Find Deal

qua, 18 fev - dom, 22 fev

12:51 p.m. - 12:39 a.m.SDF-YOW

11h 48m2 stops

5:40 a.m. - 5:55 p.m.YOW-SDF

12h 15m2 stops

C$ 817Delta

Find Deal

qua, 18 fev - dom, 22 fev

10:50 a.m. - 7:22 p.m.SDF-YUL

8h 32m2 stops

8:00 a.m. - 11:37 p.m.YUL-SDF

15h 37m2 stops

C$ 1,098Air Canada

Find Deal

sex, 26 dez - sáb, 3 jan

American Airlines flights from Louisville to Region of Ontario

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

American Airlines

13 Dec

SDF6:30 a.m.Louisville Intl

9h 33m

1 stop

YYZ4:03 p.m.Toronto Pearson Intl

14 Dec

YYZ6:00 a.m.Toronto Pearson Intl

11h 51m

1 stop

SDF5:51 p.m.Louisville Intl

C$ 523

Find similar

American Airlines

13 Dec

SDF7:38 a.m.Louisville Intl

8h 25m

1 stop

YYZ4:03 p.m.Toronto Pearson Intl

14 Dec

YYZ6:00 a.m.Toronto Pearson Intl

11h 51m

1 stop

SDF5:51 p.m.Louisville Intl

C$ 584

Find similar

American Airlines

19 Nov

SDF6:01 a.m.Louisville Intl

10h 34m

1 stop

YYZ4:35 p.m.Toronto Pearson Intl

22 Nov

YYZ10:57 a.m.Toronto Pearson Intl

10h 36m

1 stop

SDF9:33 p.m.Louisville Intl

C$ 734

Find similar

WestJet flights from Louisville to Region of Ontario

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

WestJet

31 Dec

SDF6:40 a.m.Louisville Intl

16h 59m

2 stops

YYZ11:39 p.m.Toronto Pearson Intl

4 Jan

YYZ10:15 p.m.Toronto Pearson Intl

24h 51m

2 stops

SDF11:06 p.m.Louisville Intl

C$ 1,090

Find similar

WestJet

5 Apr

SDF7:20 a.m.Louisville Intl

4h 14m

1 stop

YYZ11:34 a.m.Toronto Pearson Intl

8 Apr

YYZ10:15 p.m.Toronto Pearson Intl

25h 41m

2 stops

SDF11:56 p.m.Louisville Intl

C$ 1,102

Find similar

WestJet

26 Dec

SDF6:51 p.m.Louisville Intl

5h 08m

1 stop

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

3 Jan

YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl

11h 21m

2 stops

SDF6:06 p.m.Louisville Intl

C$ 1,130

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

qua 11/2

1:55 p.m.-9:25 p.m.

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

dom 22/2

6:45 a.m.-12:21 p.m.

3 stops29h 36m

C$ 443

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

sex 12/12

11:21 a.m.-2:40 p.m.

1 stop27h 19m

Toronto Pearson Intl

dom 14/12

3:40 p.m.-11:00 a.m.

1 stop19h 20m

C$ 446

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

qua 18/2

9:00 a.m.-5:07 p.m.

1 stop8h 07m

Ottawa

dom 22/2

5:48 p.m.-11:59 p.m.

1 stop6h 11m

C$ 511

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

qua 18/2

9:00 a.m.-9:18 p.m.

1 stop12h 18m

Ottawa

dom 22/2

5:48 p.m.-11:59 p.m.

1 stop6h 11m

C$ 512

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

sáb 13/12

6:30 a.m.-4:03 p.m.

1 stop9h 33m

Toronto Pearson Intl

dom 14/12

6:00 a.m.-5:51 p.m.

1 stop11h 51m

C$ 523

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

sáb 13/12

7:38 a.m.-4:03 p.m.

1 stop8h 25m

Toronto Pearson Intl

dom 14/12

6:00 a.m.-5:51 p.m.

1 stop11h 51m

C$ 584

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

qua 18/2

6:15 a.m.-4:23 p.m.

2 stops10h 08m

Ottawa

dom 22/2

5:48 p.m.-11:59 p.m.

1 stop6h 11m

C$ 625

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

qua 18/2

12:51 p.m.-12:39 a.m.

2 stops11h 48m

Ottawa

dom 22/2

5:40 a.m.-5:55 p.m.

2 stops12h 15m

C$ 734

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

qua 18/2

12:51 p.m.-12:39 a.m.

2 stops11h 48m

Ottawa

dom 22/2

5:40 a.m.-5:55 p.m.

2 stops12h 15m

C$ 817

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

sex 26/12

10:50 a.m.-7:22 p.m.

2 stops8h 32m

Montreal Pierre Elliott Trudeau Intl

sáb 3/1

8:00 a.m.-11:37 p.m.

2 stops15h 37m

C$ 1,098

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$ 668. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 791 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

Direct flights	None

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.