Cheap flights from Ontario to Louisville from $151
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 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to Louisville
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
WestJet flights from Region of Ontario to Louisville
Our best WestJet deals on Region of Ontario to Louisville flight tickets
Delta flights from Region of Ontario to Louisville
Our best Delta deals on Region of Ontario to Louisville flight tickets
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 February, then departing from Region of Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $327.
What is the cheapest day to depart on your flight to Louisville?
On average, the least expensive day to fly to Louisville from Region of Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $271. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Region of Ontario to Louisville on a Monday will generally be more expensive and average around $503. 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 Louisville?
Our data shows that the cheapest Region of Ontario to Louisville flights are usually those with departure times in the afternoon. Our users have found flights to Louisville in the afternoon for as low as $327. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $473 per ticket.
How far in advance should I book a flight to Louisville?
You are more likely to see cheaper flights to Louisville from Region of Ontario when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $359 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Region of Ontario for as low as $309 on momondo.
What is the cheapest airline that flies from Ontario to Louisville Intl?
American Airlines, Delta, and United Airlines are the most popular carriers operating from Ontario to Louisville Intl
What airlines fly to Louisville?
Air Canada, American Airlines and WestJet are the top three most popular airlines that fly to Louisville from Region of Ontario according to our data. Air Canada is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 4 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.
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
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?
The number of operators available for flights from Ontario to Louisville Intl Airport is 4 as of June 2025.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $258 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $296 | Free Cancellation | Rating 7.2 2,873 reviews | |||
| PriceFrom $477 | Free Cancellation | Rating 7.4 8,801 reviews |
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsWhy 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.