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

Prices for flights from Louisville Intl Airport to Ontario are refreshed on a daily basis.

How many operators does momondo search for flights from Louisville Intl Airport to Ontario?

The number of operators available for flights from Louisville Intl Airport to Ontario is 1 as of February 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Ontario.

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

The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$183 Cheap Flights from Louisville to Ontario in 2026

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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.

7:48 pm - 2:05 pm

SDF

YYZ

18h 17m

1 stop

9:30 am - 6:58 pm

YYZ

SDF

9h 28m

1 stop

$365Multiple Airlines

Mon, Apr 27 - Mon, May 4

7:48 pm - 2:05 pm

SDF

YYZ

18h 17m

1 stop

4:50 pm - 8:36 am

YYZ

SDF

39h 46m

2 stops

$370Multiple Airlines

Mon, Apr 27 - Mon, May 4

1:19 pm - 8:10 pm

SDF

YYZ

30h 51m

2 stops

8:30 pm - 11:47 am

YYZ

SDF

15h 17m

1 stop

$380Multiple Airlines

Mon, Mar 9 - Mon, Mar 16

5:50 am - 2:22 pm

SDF

YOW

8h 32m

1 stop

7:37 pm - 11:59 pm

YOW

SDF

4h 22m

1 stop

$381United Airlines

Thu, Apr 30 - Tue, May 5

1:19 pm - 12:29 am

SDF

YYZ

11h 10m

1 stop

8:30 pm - 11:47 am

YYZ

SDF

15h 17m

1 stop

$399Multiple Airlines

Mon, Mar 9 - Mon, Mar 16

9:10 am - 9:26 pm

SDF

YUL

12h 16m

1 stop

6:10 am - 8:17 pm

YUL

SDF

14h 07m

1 stop

$449United Airlines

Sat, May 9 - Sat, May 16

6:35 am - 6:35 pm

SDF

YUL

12h 00m

1 stop

9:20 am - 8:42 pm

YUL

SDF

11h 22m

1 stop

$455Delta

Mon, Mar 23 - Mon, Mar 30

7:07 pm - 11:44 am

SDF

YUL

16h 37m

1 stop

12:30 pm - 12:23 am

YUL

SDF

11h 53m

1 stop

$480American Airlines

Sat, May 9 - Sat, May 16

5:38 pm - 12:20 am

SDF

YOW

6h 42m

2 stops

5:55 am - 4:31 pm

YOW

SDF

10h 36m

2 stops

$483Delta

Thu, Apr 30 - Tue, May 5

7:07 pm - 3:27 pm

SDF

YUL

20h 20m

2 stops

12:30 pm - 12:23 am

YUL

SDF

11h 53m

1 stop

$490American Airlines

Sat, May 9 - Sat, May 16

WestJet flights from Louisville to Region of Ontario

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

WestJet

Jul 24

SDF1:20 pmLouisville Intl

5h 05m

1 stop

YYZ6:25 pmToronto Pearson Intl

Aug 1

YYZ3:55 pmToronto Pearson Intl

5h 42m

1 stop

SDF9:37 pmLouisville Intl

$596

WestJet

Jun 15

SDF3:24 pmLouisville Intl

6h 36m

1 stop

YYZ10:00 pmToronto Pearson Intl

Jun 26

YYZ6:15 amToronto Pearson Intl

5h 21m

1 stop

SDF11:36 amLouisville Intl

$599

WestJet

Apr 27

SDF6:00 amLouisville Intl

14h 50m

2 stops

YYZ8:50 pmToronto Pearson Intl

May 4

YYZ8:00 pmToronto Pearson Intl

14h 24m

2 stops

SDF10:24 amLouisville Intl

$635

Delta flights from Louisville to Region of Ontario

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

Delta

Mar 23

SDF6:35 amLouisville Intl

12h 00m

1 stop

YUL6:35 pmMontreal Pierre Elliott Trudeau Intl

Mar 30

YUL9:20 amMontreal Pierre Elliott Trudeau Intl

11h 22m

1 stop

SDF8:42 pmLouisville Intl

$455

Delta

Apr 30

SDF5:38 pmLouisville Intl

6h 42m

2 stops

YOW12:20 amOttawa

May 5

YOW5:55 amOttawa

10h 36m

2 stops

SDF4:31 pmLouisville Intl

$483

Delta

Mar 26

SDF6:35 amLouisville Intl

9h 39m

1 stop

YYZ4:14 pmToronto Pearson Intl

Apr 2

YYZ12:25 pmToronto Pearson Intl

6h 27m

1 stop

SDF6:52 pmLouisville Intl

$513

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 4/27

7:48 pm-2:05 pm

1 stop18h 17m

Toronto Pearson Intl

Mon 5/4

9:30 am-6:58 pm

1 stop9h 28m

$365

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 4/27

7:48 pm-2:05 pm

1 stop18h 17m

Toronto Pearson Intl

Mon 5/4

4:50 pm-8:36 am

2 stops39h 46m

$370

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 3/9

1:19 pm-8:10 pm

2 stops30h 51m

Toronto Pearson Intl

Mon 3/16

8:30 pm-11:47 am

1 stop15h 17m

$380

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 4/30

5:50 am-2:22 pm

1 stop8h 32m

Ottawa

Tue 5/5

7:37 pm-11:59 pm

1 stop4h 22m

$381

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Mon 3/9

1:19 pm-12:29 am

1 stop11h 10m

Toronto Pearson Intl

Mon 3/16

8:30 pm-11:47 am

1 stop15h 17m

$399

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Sat 5/9

9:10 am-9:26 pm

1 stop12h 16m

Montreal Pierre Elliott Trudeau Intl

Sat 5/16

6:10 am-8:17 pm

1 stop14h 07m

$449

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Mon 3/23

6:35 am-6:35 pm

1 stop12h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 3/30

9:20 am-8:42 pm

1 stop11h 22m

$455

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Sat 5/9

7:07 pm-11:44 am

1 stop16h 37m

Montreal Pierre Elliott Trudeau Intl

Sat 5/16

12:30 pm-12:23 am

1 stop11h 53m

$480

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 4/30

5:38 pm-12:20 am

2 stops6h 42m

Ottawa

Tue 5/5

5:55 am-4:31 pm

2 stops10h 36m

$483

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Sat 5/9

7:07 pm-3:27 pm

2 stops20h 20m

Montreal Pierre Elliott Trudeau Intl

Sat 5/16

12:30 pm-12:23 am

1 stop11h 53m

$490

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

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

United Airlines, Air Canada, and WestJet are the most popular carriers operating from Louisville Intl to Ontario

What airlines fly to Region of Ontario?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Region of Ontario from Louisville according to our data. Air Canada is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 3 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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	4h 18m
Direct flights	None

The fastest flight from Louisville to Region of Ontario takes 4h 18m

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 refreshed on a daily basis.
How many operators does momondo search for flights from Louisville Intl Airport to Ontario?
The number of operators available for flights from Louisville Intl Airport to Ontario is 1 as of February 2026.
How old do you have to be to fly from Louisville Intl Airport to Ontario?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Louisville to Region of Ontario

Compare and see reviews for airlines that fly from Louisville to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $370	Free Cancellation	Rating 7.9 8,176 reviews		Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Louisville.

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

Yes. momondo enables you to select and highlight flights to Ontario from Louisville with this policy.

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

Once you have performed a search for Louisville to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Louisville to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.