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Cheap flights from Louisville to Ontario from C$ 177
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — YYZ
4 Aug — 11 Aug1
Round-trip
1 adult
Economy
Cheap flight deals from Louisville to Ontario
Keep the following information in mind while searching for Louisville to Ontario flight deals. Data was last updated 30 July 2025.
Find flight deals from Louisville to Ontario
Cheapest flights from Louisville to OntarioExplore the most affordable flight options available from Louisville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.
Explore the most affordable flight options available from Louisville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.
Mon 22/911:17 a.m.SDF - YYZ
1 stop12h 35mMultiple Airlines
Sun 28/96:30 a.m.YYZ - SDF
1 stop15h 58mMultiple Airlines
Deal found 29/7C$ 403
Sat 8/115:20 p.m.SDF - YUL
1 stop21h 51mAmerican Airlines
Tue 11/117:14 a.m.YUL - SDF
2 stops13h 05mAmerican Airlines
Deal found 29/7C$ 483
Fri 12/99:47 a.m.SDF - YOW
1 stop7h 33mMultiple Airlines
Tue 16/94:25 p.m.YOW - SDF
1 stop16h 54mMultiple Airlines
Deal found 29/7C$ 487
Sat 13/99:09 p.m.SDF - YUL
2 stops20h 46mMultiple Airlines
Sat 20/96:45 a.m.YUL - SDF
2 stops15h 43mMultiple Airlines
Deal found 29/7C$ 575
Wed 10/99:05 a.m.SDF - YYZ
1 stop9h 28mUnited Airlines
Wed 17/912:20 p.m.YYZ - SDF
1 stop10h 04mUnited Airlines
Deal found 30/7C$ 618
Sun 24/86:00 a.m.SDF - YUL
1 stop10h 07mDelta
Tue 2/96:00 a.m.YUL - SDF
1 stop14h 55mDelta
Deal found 28/7C$ 715
Wed 8/1010:55 a.m.SDF - YUL
1 stop7h 55mUnited Airlines
Sat 18/108:20 a.m.YUL - SDF
1 stop14h 10mUnited Airlines
Deal found 30/7C$ 720
Sat 13/97:00 a.m.SDF - YYZ
1 stop10h 43mAmerican Airlines
Sun 14/96:30 a.m.YYZ - SDF
1 stop7h 50mAmerican Airlines
Deal found 29/7C$ 726
Tue 2/96:00 a.m.SDF - YYZ
1 stop11h 59mDelta
Mon 8/96:07 p.m.YYZ - SDF
1 stop5h 49mDelta
Deal found 29/7C$ 854
Thu 7/86:00 a.m.SDF - YYZ
2 stops14h 54mWestJet
Fri 8/86:15 a.m.YYZ - SDF
1 stop5h 22mWestJet
Deal found 28/7C$ 952
Thu 18/97:20 a.m.SDF - YOW
1 stop9h 46mUnited Airlines
Sun 21/97:29 p.m.YOW - SDF
1 stop19h 21mUnited Airlines
Deal found 29/7C$ 971
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to 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, Cheapflights users made 629,999 searches. Data last updated 30 July 2025.
Use the filters below to find and compare flights from Louisville to Ontario that are best for you.
Fly from
Louisville
Fly to
Ontario
Route
Depart
Return
Price
LouisvilleToronto
SDF - YYZ
SDFYYZ
Louisville Intl
Mon 22/9
11:17 a.m.-11:52 p.m.
1 stop12h 35m
Toronto Pearson Intl
Sun 28/9
6:30 a.m.-10:28 p.m.
1 stop15h 58m
C$ 403
LouisvilleOttawa
SDF - YOW
SDFYOW
Louisville Intl
Fri 12/9
9:47 a.m.-5:20 p.m.
1 stop7h 33m
Ottawa
Tue 16/9
4:25 p.m.-9:19 a.m.
1 stop16h 54m
C$ 487
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Sat 13/9
9:09 p.m.-5:55 p.m.
2 stops20h 46m
Montreal Pierre Elliott Trudeau Intl
Sat 20/9
6:45 a.m.-10:28 p.m.
2 stops15h 43m
C$ 575
LouisvilleToronto
SDF - YYZ
SDFYYZ
Louisville Intl
Wed 10/9
9:05 a.m.-6:33 p.m.
1 stop9h 28m
Toronto Pearson Intl
Wed 17/9
12:20 p.m.-10:24 p.m.
1 stop10h 04m
C$ 618
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Sat 30/8
1:43 p.m.-11:36 a.m.
1 stop21h 53m
Montreal Pierre Elliott Trudeau Intl
Fri 5/9
12:30 p.m.-2:03 p.m.
1 stop25h 33m
C$ 629
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Sun 24/8
6:00 a.m.-4:07 p.m.
1 stop10h 07m
Montreal Pierre Elliott Trudeau Intl
Tue 2/9
6:00 a.m.-8:55 p.m.
1 stop14h 55m
C$ 715
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Wed 8/10
10:55 a.m.-6:50 p.m.
1 stop7h 55m
Montreal Pierre Elliott Trudeau Intl
Sat 18/10
8:20 a.m.-10:30 p.m.
1 stop14h 10m
C$ 720
LouisvilleToronto
SDF - YYZ
SDFYYZ
Louisville Intl
Sat 13/9
7:00 a.m.-5:43 p.m.
1 stop10h 43m
Toronto Pearson Intl
Sun 14/9
6:30 a.m.-2:20 p.m.
1 stop7h 50m
C$ 726
LouisvilleToronto
SDF - YYZ
SDFYYZ
Louisville Intl
Tue 2/9
6:00 a.m.-5:59 p.m.
1 stop11h 59m
Toronto Pearson Intl
Mon 8/9
6:07 p.m.-11:56 p.m.
1 stop5h 49m
C$ 854
LouisvilleOttawa
SDF - YOW
SDFYOW
Louisville Intl
Thu 18/9
7:20 a.m.-5:06 p.m.
1 stop9h 46m
Ottawa
Sun 21/9
7:29 p.m.-2:50 p.m.
1 stop19h 21m
C$ 971
Showing 1-10 of 18 results
Best time to book a flight from Louisville to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Louisville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Louisville to Ontario
What is the cheapest month to book a flight from Louisville to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from Louisville to Region of Ontario (average of C$ 167). Flying from Louisville to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Louisville to Region of Ontario?
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 30 July 2025.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Louisville to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.9
Food
7.3
Overall
8.0
Boarding
8.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Entertainment
7.9
Food
7.3
Overall
8.0
Boarding
8.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Entertainment
7.9
Food
7.3
Overall
8.0
Boarding
8.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Entertainment
7.9
Food
7.3
Overall
8.0
Boarding
8.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Entertainment
7.9
Food
7.3
Overall
8.0
Boarding
8.2
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Louisville to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Louisville to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Louisville to Ontario
Discover the top airline that operate flights from Louisville to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 30 July 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Louisville to Ontario?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Louisville to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Louisville to Ontario?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Louisville to Ontario.
Can Cheapflights find flights from Louisville to Ontario with no change fees?
Yes! Cheapflights helps users easily find flights from Louisville to Ontario with no change fees.
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