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Cheap flights from Louisville to Ontario from $153

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Ontario departing on 2/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Louisville to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:33 pm - 11:55 pm
SDF
-
YYZ
8h 22m1 stop
Multiple Airlines Logo
6:30 am - 2:38 pm
YYZ
-
SDF
8h 08m1 stop
$314Multiple Airlines
Tue, May 26 - Thu, May 28
American Airlines Logo
8:07 am - 9:23 pm
SDF
-
YYZ
13h 16m1 stop
American Airlines Logo
11:30 am - 11:19 pm
YYZ
-
SDF
11h 49m1 stop
$316American Airlines
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
1:55 pm - 4:22 pm
SDF
-
YUL
26h 27m2 stops
Multiple Airlines Logo
8:00 am - 2:38 pm
YUL
-
SDF
30h 38m1 stop
$331Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
12:24 pm - 11:55 pm
SDF
-
YYZ
11h 31m1 stop
Multiple Airlines Logo
6:30 am - 2:38 pm
YYZ
-
SDF
8h 08m1 stop
$345Multiple Airlines
Wed, May 20 - Thu, May 28
Multiple Airlines Logo
12:24 pm - 11:55 pm
SDF
-
YYZ
11h 31m1 stop
Multiple Airlines Logo
9:35 am - 2:38 pm
YYZ
-
SDF
29h 03m1 stop
$352Multiple Airlines
Wed, May 20 - Wed, May 27
United Airlines Logo
6:28 am - 1:32 pm
SDF
-
YOW
7h 04m1 stop
United Airlines Logo
5:55 pm - 11:23 pm
YOW
-
SDF
5h 28m1 stop
$374United Airlines
Thu, Feb 5 - Sun, Feb 8
United Airlines Logo
2:05 pm - 9:18 pm
SDF
-
YOW
7h 13m1 stop
United Airlines Logo
5:11 pm - 10:30 pm
YOW
-
SDF
5h 19m1 stop
$385United Airlines
Thu, Feb 5 - Sun, Feb 8
Air Canada Logo
6:28 am - 4:23 pm
SDF
-
YOW
9h 55m2 stops
Air Canada Logo
5:11 pm - 10:30 pm
YOW
-
SDF
5h 19m1 stop
$458Air Canada
Thu, Feb 5 - Sun, Feb 8
Air Canada Logo
6:28 am - 4:23 pm
SDF
-
YOW
9h 55m2 stops
Air Canada Logo
3:10 pm - 11:23 pm
YOW
-
SDF
8h 13m1 stop
$468Air Canada
Thu, Feb 5 - Sun, Feb 8
WestJet Logo
7:50 am - 12:39 am
SDF
-
YOW
16h 49m2 stops
WestJet Logo
5:40 am - 6:13 pm
YOW
-
SDF
12h 33m2 stops
$1,023WestJet
Thu, Feb 5 - Sun, Feb 8

American Airlines flights from Louisville to Region of Ontario

Our best American Airlines deals on Louisville to Region of Ontario flight tickets
American Airlines
Feb 4
SDF8:07 amLouisville Intl
13h 16m
1 stop
YYZ9:23 pmToronto Pearson Intl
Feb 11
YYZ11:30 amToronto Pearson Intl
11h 49m
1 stop
SDF11:19 pmLouisville Intl
$316
Find similar
American Airlines
Feb 5
SDF8:07 amLouisville Intl
7h 56m
1 stop
YYZ4:03 pmToronto Pearson Intl
Feb 12
YYZ6:00 amToronto Pearson Intl
15h 30m
1 stop
SDF9:30 pmLouisville Intl
$416
Find similar
American Airlines
Jan 17
SDF6:03 amLouisville Intl
10h 32m
1 stop
YYZ4:35 pmToronto Pearson Intl
Jan 18
YYZ10:59 amToronto Pearson Intl
11h 06m
1 stop
SDF10:05 pmLouisville Intl
$458
Find similar

United Airlines flights from Louisville to Region of Ontario

Our best United Airlines deals on Louisville to Region of Ontario flight tickets
United Airlines
Feb 5
SDF6:28 amLouisville Intl
7h 04m
1 stop
YOW1:32 pmOttawa
Feb 8
YOW5:55 pmOttawa
5h 28m
1 stop
SDF11:23 pmLouisville Intl
$374
Find similar
United Airlines
Feb 5
SDF2:05 pmLouisville Intl
7h 13m
1 stop
YOW9:18 pmOttawa
Feb 8
YOW5:11 pmOttawa
5h 19m
1 stop
SDF10:30 pmLouisville Intl
$385
Find similar
United Airlines
Feb 5
SDF9:50 amLouisville Intl
7h 28m
2 stops
YOW5:18 pmOttawa
Feb 8
YOW5:00 amOttawa
8h 24m
2 stops
SDF1:24 pmLouisville Intl
$473
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Region of Ontario 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, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Louisville to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Tue 5/26

3:33 pm-11:55 pm

1 stop8h 22m

Toronto Pearson Intl

Thu 5/28

6:30 am-2:38 pm

1 stop8h 08m

$314

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Wed 2/4

8:07 am-9:23 pm

1 stop13h 16m

Toronto Pearson Intl

Wed 2/11

11:30 am-11:19 pm

1 stop11h 49m

$316

LouisvilleMontreal

SDF - YUL

SDFYUL

Louisville Intl

Wed 2/4

1:55 pm-4:22 pm

2 stops26h 27m

Montreal Pierre Elliott Trudeau Intl

Wed 2/11

8:00 am-2:38 pm

1 stop30h 38m

$331

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Wed 5/20

12:24 pm-11:55 pm

1 stop11h 31m

Toronto Pearson Intl

Thu 5/28

6:30 am-2:38 pm

1 stop8h 08m

$345

LouisvilleToronto

SDF - YYZ

SDFYYZ

Louisville Intl

Wed 5/20

12:24 pm-11:55 pm

1 stop11h 31m

Toronto Pearson Intl

Wed 5/27

9:35 am-2:38 pm

1 stop29h 03m

$352

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 2/5

6:28 am-1:32 pm

1 stop7h 04m

Ottawa

Sun 2/8

5:55 pm-11:23 pm

1 stop5h 28m

$374

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 2/5

2:05 pm-9:18 pm

1 stop7h 13m

Ottawa

Sun 2/8

5:11 pm-10:30 pm

1 stop5h 19m

$385

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 2/5

6:28 am-4:23 pm

2 stops9h 55m

Ottawa

Sun 2/8

5:11 pm-10:30 pm

1 stop5h 19m

$458

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 2/5

6:28 am-4:23 pm

2 stops9h 55m

Ottawa

Sun 2/8

3:10 pm-11:23 pm

1 stop8h 13m

$468

LouisvilleOttawa

SDF - YOW

SDFYOW

Louisville Intl

Thu 2/5

7:50 am-12:39 am

2 stops16h 49m

Ottawa

Sun 2/8

5:40 am-6:13 pm

2 stops12h 33m

$1,023

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Ontario from

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 day to depart on your flight to Region of Ontario?

According to our data, Tuesday is the cheapest day to fly to Region of Ontario from Louisville. The lowest ticket price found for a Tuesday departure recently was $340. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Louisville to Region of Ontario on a Thursday will generally be more expensive and average around $448. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Region of Ontario is at noon. momondo users have found flights departing from Louisville to Region of Ontario at noon for as low as $319. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $376.

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

3h 38m

Direct flights

None
The fastest flight from Louisville to Region of Ontario takes 3h 38m
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?

  • 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
DeltaPriceFrom $370Free CancellationRating
7.9
8,014 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.

An easier way to manage your Region of Ontario trip

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