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Cheap flights from Ontario to Louisville from $211

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Louisville departing on 7/28. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:00 pm - 7:07 pm
YYZ
-
SDF
6h 07m
1 stop
United Airlines Logo
7:10 am - 1:42 pm
SDF
-
YYZ
6h 32m
1 stop
$433United Airlines
Wed, Sep 16 - Wed, Sep 23
Delta Logo
2:25 pm - 8:43 pm
YUL
-
SDF
6h 18m
1 stop
Delta Logo
7:55 am - 11:58 am
SDF
-
YUL
4h 03m
1 stop
$437Delta
Tue, Sep 15 - Tue, Sep 22
American Airlines Logo
7:24 pm - 12:34 am
YYZ
-
SDF
5h 10m
1 stop
American Airlines Logo
6:00 am - 4:45 pm
SDF
-
YYZ
10h 45m
1 stop
$438American Airlines
Sat, Jul 18 - Sat, Jul 25
Delta Logo
9:30 am - 4:53 pm
YUL
-
SDF
7h 23m
1 stop
Delta Logo
11:45 am - 6:53 pm
SDF
-
YUL
7h 08m
1 stop
$438Delta
Tue, Sep 15 - Tue, Sep 22
Delta Logo
6:00 am - 12:55 pm
YYZ
-
SDF
6h 55m
1 stop
Delta Logo
8:05 am - 5:19 pm
SDF
-
YYZ
9h 14m
1 stop
$439Delta
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
7:24 pm - 12:34 am
YYZ
-
SDF
5h 10m
1 stop
American Airlines Logo
6:00 am - 4:45 pm
SDF
-
YYZ
10h 45m
1 stop
$440American Airlines
Sat, Jul 18 - Sat, Jul 25
WestJet Logo
2:25 pm - 8:43 pm
YUL
-
SDF
6h 18m
1 stop
WestJet Logo
6:30 am - 4:45 pm
SDF
-
YUL
10h 15m
2 stops
$454WestJet
Tue, Sep 15 - Tue, Sep 22
WestJet Logo
6:45 am - 9:16 pm
YUL
-
SDF
14h 31m
2 stops
WestJet Logo
7:55 am - 11:27 pm
SDF
-
YUL
15h 32m
1 stop
$455WestJet
Tue, Sep 15 - Tue, Sep 22
Air Canada Logo
3:00 pm - 10:09 pm
YUL
-
SDF
7h 09m
2 stops
Air Canada Logo
10:00 am - 3:02 pm
SDF
-
YUL
5h 02m
1 stop
$496Air Canada
Wed, Dec 2 - Sat, Dec 5
Air Canada Logo
3:00 pm - 10:09 pm
YUL
-
SDF
7h 09m
2 stops
Air Canada Logo
10:00 am - 3:02 pm
SDF
-
YUL
5h 02m
1 stop
$497Air Canada
Wed, Dec 2 - Sat, Dec 5

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United Airlines flights from Region of Ontario to Louisville

Our best United Airlines deals on Region of Ontario to Louisville flight tickets
United Airlines
Sep 16
YYZ1:00 pmToronto Pearson Intl
6h 07m
1 stop
SDF7:07 pmLouisville Intl
Sep 23
SDF7:10 amLouisville Intl
6h 32m
1 stop
YYZ1:42 pmToronto Pearson Intl
$433
United Airlines
Aug 13
YYZ1:00 pmToronto Pearson Intl
6h 07m
1 stop
SDF7:07 pmLouisville Intl
Aug 15
SDF9:00 amLouisville Intl
14h 59m
1 stop
YYZ11:59 pmToronto Pearson Intl
$448
United Airlines
Jul 30
YYZ11:00 amToronto Pearson Intl
6h 03m
1 stop
SDF5:03 pmLouisville Intl
Aug 1
SDF1:48 pmLouisville Intl
5h 14m
1 stop
YYZ7:02 pmToronto Pearson Intl
$453

Delta flights from Region of Ontario to Louisville

Our best Delta deals on Region of Ontario to Louisville flight tickets
Delta
Sep 15
YUL2:25 pmMontreal Pierre Elliott Trudeau Intl
6h 18m
1 stop
SDF8:43 pmLouisville Intl
Sep 22
SDF7:55 amLouisville Intl
4h 03m
1 stop
YUL11:58 amMontreal Pierre Elliott Trudeau Intl
$437
Delta
Sep 15
YUL9:30 amMontreal Pierre Elliott Trudeau Intl
7h 23m
1 stop
SDF4:53 pmLouisville Intl
Sep 22
SDF11:45 amLouisville Intl
7h 08m
1 stop
YUL6:53 pmMontreal Pierre Elliott Trudeau Intl
$438
Delta
Aug 15
YYZ6:00 amToronto Pearson Intl
6h 55m
1 stop
SDF12:55 pmLouisville Intl
Aug 22
SDF8:05 amLouisville Intl
9h 14m
1 stop
YYZ5:19 pmToronto Pearson Intl
$439

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Louisville 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 July 7, 2026.
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

Cheapest round-trip

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Wed 9/16

1:00 pm-7:07 pm

1 stop6h 07m

Louisville Intl

Wed 9/23

7:10 am-1:42 pm

1 stop6h 32m

$433
Quickest round-trip

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Tue 9/15

2:25 pm-8:43 pm

1 stop6h 18m

Louisville Intl

Tue 9/22

7:55 am-11:58 am

1 stop4h 03m

$437

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Sat 7/18

7:24 pm-12:34 am

1 stop5h 10m

Louisville Intl

Sat 7/25

6:00 am-4:45 pm

1 stop10h 45m

$438

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Tue 9/15

9:30 am-4:53 pm

1 stop7h 23m

Louisville Intl

Tue 9/22

11:45 am-6:53 pm

1 stop7h 08m

$438

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Sat 8/15

6:00 am-12:55 pm

1 stop6h 55m

Louisville Intl

Sat 8/22

8:05 am-5:19 pm

1 stop9h 14m

$439

TorontoLouisville

YYZ - SDF

YYZSDF

Toronto Pearson Intl

Sat 7/18

7:24 pm-12:34 am

1 stop5h 10m

Louisville Intl

Sat 7/25

6:00 am-4:45 pm

1 stop10h 45m

$440

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Tue 9/15

2:25 pm-8:43 pm

1 stop6h 18m

Louisville Intl

Tue 9/22

6:30 am-4:45 pm

2 stops10h 15m

$454

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Tue 9/15

6:45 am-9:16 pm

2 stops14h 31m

Louisville Intl

Tue 9/22

7:55 am-11:27 pm

1 stop15h 32m

$455

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Wed 12/2

3:00 pm-10:09 pm

2 stops7h 09m

Louisville Intl

Sat 12/5

10:00 am-3:02 pm

1 stop5h 02m

$496

MontrealLouisville

YUL - SDF

YULSDF

Montreal Pierre Elliott Trudeau Intl

Wed 12/2

3:00 pm-10:09 pm

2 stops7h 09m

Louisville Intl

Sat 12/5

10:00 am-3:02 pm

1 stop5h 02m

$497

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Louisville from

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

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 month to fly to Louisville?

If you are unable to visit Louisville during the month of December, then departing from Region of Ontario during the month March is also very affordable. Most momondo users find prices during this month for around $308.

Cheap Region of Ontario to Louisville flight deals and tips

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

Fastest flight time

5h 23m

Direct flights

None
The fastest flight from Region of Ontario to Louisville takes 5h 23m
There are no direct flights from Region of Ontario to Louisville. There are no popular flight routes from Region of Ontario to Louisville.
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Frequently asked questions about flying from Ontario to Louisville

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

    Prices for flights from Ontario to Louisville Intl Airport refresh daily.

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

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

    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 Ontario to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents required for your trip to Louisville Intl Airport 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 Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Region of Ontario to Louisville

Compare and see reviews for airlines that fly from Region of Ontario to Louisville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $477Free CancellationRating
7.1
11,784 reviews
Search American Airlines flights

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
Jeffersonville
Bardstown
West Baden Springs
New Albany
Shepherdsville
Elizabeth
Charlestown
Corydon
Brandenburg
Georgetown
Springfield

Why use momondo?

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

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 Louisville from Ontario.

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

momondo does allow users to show only those flights to Louisville from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Louisville from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Louisville, momondo offers a useful price alert feature which will track prices for flights to Louisville from Ontario and alert you when they change.

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