Cheap flights from Louisville to Ontario from C$ 178
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 13/7. Fares are subject to change and may not be available on all flights or dates of travel.
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 12 June 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 12 June 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 12 June 2025.
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 12 June 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
Wed 9/7
9:46 a.m.-2:05 p.m.
1 stop28h 19m
Toronto Pearson Intl
Wed 16/7
7:25 p.m.-11:27 a.m.
1 stop16h 02m
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Sat 26/7
7:13 p.m.-12:37 a.m.
2 stops29h 24m
Montreal Pierre Elliott Trudeau Intl
Sat 2/8
1:10 p.m.-11:27 a.m.
1 stop22h 17m
LouisvilleToronto
SDF - YYZ
SDFYYZ
Louisville Intl
Thu 9/10
10:55 a.m.-8:44 p.m.
1 stop9h 49m
Toronto Pearson Intl
Sun 12/10
2:10 p.m.-1:21 p.m.
1 stop23h 11m
LouisvilleOttawa
SDF - YOW
SDFYOW
Louisville Intl
Sat 26/7
3:36 p.m.-12:22 a.m.
3 stops32h 46m
Ottawa
Sat 2/8
12:00 p.m.-11:27 a.m.
1 stop23h 27m
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Mon 22/9
7:35 a.m.-12:28 p.m.
1 stop4h 53m
Montreal Pierre Elliott Trudeau Intl
Thu 25/9
12:30 p.m.-10:59 p.m.
1 stop10h 29m
LouisvilleToronto
SDF - YYZ
SDFYYZ
Louisville Intl
Mon 23/6
6:10 a.m.-11:59 a.m.
1 stop5h 49m
Toronto Pearson Intl
Wed 25/6
11:01 a.m.-9:50 p.m.
1 stop10h 49m
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Wed 8/10
10:45 a.m.-9:26 p.m.
2 stops10h 41m
Montreal Pierre Elliott Trudeau Intl
Sat 18/10
6:00 a.m.-1:39 p.m.
1 stop7h 39m
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Sun 17/8
6:00 a.m.-7:45 p.m.
1 stop13h 45m
Montreal Pierre Elliott Trudeau Intl
Sun 24/8
9:45 a.m.-10:02 a.m.
1 stop24h 17m
LouisvilleLondon
SDF - YXU
SDFYXU
Louisville Intl
Sun 27/7
4:31 p.m.-7:09 p.m.
3 stops26h 38m
London
Sun 3/8
6:00 a.m.-1:55 p.m.
3 stops31h 55m
LouisvilleMontreal
SDF - YUL
SDFYUL
Louisville Intl
Wed 26/11
7:20 a.m.-12:15 p.m.
1 stop4h 55m
Montreal Pierre Elliott Trudeau Intl
Sun 30/11
6:15 p.m.-11:56 p.m.
1 stop5h 41m
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.
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$ 255). 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.
Rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.
Temperature in Ontario by month
Plan your trip to Ontario by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).
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 12 June 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Louisville to Ontario to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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 12 June 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.
Can Cheapflights notify me if prices for flights from Louisville to Ontario become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!