Cheap flights from Ontario to Louisville from $172
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 5/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from 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 Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $396.
What is the cheapest day to depart on your flight to Louisville?
On average, the least expensive day to fly to Louisville from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $183. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Ontario to Louisville on a Friday will generally be more expensive and average around $222. 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 Ontario to Louisville flights are usually those with departure times in the morning. Our users have found flights to Louisville in the morning for as low as $207. In the evening is when there is more demand to fly to Louisville, so prices are often more expensive at around $366 per ticket.
How have Ontario to Louisville flight prices changed over time?
As of March 2025, prices for Ontario to Louisville flights are approximately 127% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Ontario to Louisville Intl?
American Airlines, United Airlines, and Alaska Airlines are the most popular carriers operating from Ontario to Louisville Intl
What airlines fly to Louisville?
American Airlines, Delta and Spirit Airlines are the top three most popular airlines that fly to Louisville from Ontario according to our data. American Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 8 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Louisville
Cheap Ontario to Louisville (ONT to SDF) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Louisville
How far is Ontario to Louisville Intl by plane?
The straight-line distance from Ontario to Louisville Intl is 1792.4 mi. Typically, this will take 5h 37m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to Louisville Intl Airport?
Prices for flights from Ontario Airport to Louisville Intl Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Louisville Intl Airport?
The number of operators available for flights from Ontario Airport to Louisville Intl Airport is 4 as of March 2025.
How old do you have to be to fly from Ontario Airport to Louisville Intl Airport?
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 Ontario Airport to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The necessary travel and health documents for your Louisville Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Louisville?
Based on momondo bookings for flights between Ontario and Louisville, the leading airline is American Airlines, making up 56% of the total bookings. Other popular airlines include Southwest with 23%, United Airlines with 12%, and Delta with 9%.
Best airlines flying from Ontario to Louisville
Compare and see reviews for airlines that fly from Ontario to Louisville with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $326 | Free Cancellation | Rating 8.0 7,895 reviews | |||
| PriceFrom $326 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $354 | Free Cancellation | Rating 7.4 8,603 reviews | |||
| PriceFrom $367 | Free Cancellation | Rating 8.0 4,273 reviews |
Traveling to a place near Louisville?
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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?
Flights from Ontario to Louisville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Ontario to Louisville?
momondo helps you find the best flight between Ontario and Louisville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Ontario to Louisville right now. Can momondo alert me if prices change?
Price alerts on flights to Louisville from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.