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Cheap flights from Ontario to Louisville from $154

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 3/18. 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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0 bags

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Find the cheapest flights from Ontario to Louisville

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to Louisville that have been recently found on momondo from popular airlines, departing in the coming months.
11:59 pm - 10:25 amONT-SDF
7h 26m1 stop
4:19 pm - 10:10 pmSDF-ONT
8h 51m1 stop
$295American Airlines
Find Deal
mar., abr. 22 - mié., abr. 30
12:50 pm - 11:56 pmONT-SDF
8h 06m2 stops
7:20 am - 1:49 pmSDF-ONT
9h 29m1 stop
$300American Airlines
Find Deal
mar., abr. 22 - mié., abr. 30
7:00 am - 9:34 pmONT-SDF
11h 34m2 stops
4:35 pm - 11:41 pmSDF-ONT
10h 06m2 stops
$305Delta
Find Deal
mar., abr. 22 - mié., abr. 30
10:59 pm - 9:51 amONT-SDF
7h 52m1 stop
2:59 pm - 7:29 pmSDF-ONT
7h 30m1 stop
$357Delta
Find Deal
mar., jun. 17 - mar., jun. 24
1:40 pm - 10:12 pmONT-SDF
5h 32m1 stop
8:53 am - 12:44 pmSDF-ONT
6h 51m1 stop
$397United Airlines
Find Deal
mar., mar. 25 - mié., mar. 26
1:40 pm - 10:12 pmONT-SDF
5h 32m1 stop
1:50 pm - 10:45 pmSDF-ONT
11h 55m2 stops
$402United Airlines
Find Deal
mar., mar. 25 - mié., mar. 26
1:20 pm - 12:05 amONT-SDF
7h 45m2 stops
1:20 pm - 5:30 pmSDF-ONT
7h 10m1 stop
$418Southwest
Find Deal
jue., abr. 3 - lun., abr. 7
1:20 pm - 12:05 amONT-SDF
7h 45m2 stops
1:40 pm - 8:05 pmSDF-ONT
9h 25m2 stops
$423Southwest
Find Deal
jue., abr. 3 - lun., abr. 7
6:00 am - 8:57 pmONT-SDF
11h 57m2 stops
11:02 am - 11:59 pmSDF-ONT
15h 57m2 stops
$512Alaska Airlines
Find Deal
mié., mar. 19 - mar., mar. 25
6:00 am - 8:57 pmONT-SDF
11h 57m2 stops
11:02 am - 11:59 pmSDF-ONT
15h 57m2 stops
$577Alaska Airlines
Find Deal
mar., mar. 25 - mié., mar. 26

American Airlines flights from Ontario to Louisville

Our best American Airlines deals on Ontario to Louisville flight tickets
American Airlines
Apr 22
ONT11:59 pmOntario
7h 26m
1 stop
SDF10:25 amLouisville Intl
Apr 30
SDF4:19 pmLouisville Intl
8h 51m
1 stop
ONT10:10 pmOntario
American Airlines
Apr 22
ONT12:50 pmOntario
8h 06m
2 stops
SDF11:56 pmLouisville Intl
Apr 30
SDF7:20 amLouisville Intl
9h 29m
1 stop
ONT1:49 pmOntario
American Airlines
Apr 2
ONT2:54 pmOntario
6h 14m
1 stop
SDF12:08 amLouisville Intl
Apr 6
SDF6:00 amLouisville Intl
6h 54m
1 stop
ONT9:54 amOntario

Delta flights from Ontario to Louisville

Our best Delta deals on Ontario to Louisville flight tickets
Delta
Apr 22
ONT7:00 amOntario
11h 34m
2 stops
SDF9:34 pmLouisville Intl
Apr 30
SDF4:35 pmLouisville Intl
10h 06m
2 stops
ONT11:41 pmOntario
Delta
Jun 17
ONT10:59 pmOntario
7h 52m
1 stop
SDF9:51 amLouisville Intl
Jun 24
SDF2:59 pmLouisville Intl
7h 30m
1 stop
ONT7:29 pmOntario
Delta
Apr 6
ONT12:42 pmOntario
8h 16m
1 stop
SDF11:58 pmLouisville Intl
Apr 7
SDF4:59 pmLouisville Intl
8h 37m
1 stop
ONT10:36 pmOntario

See travel insights to Louisville from

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 August, then departing from Ontario during the month February is also very affordable. Most momondo users find prices during this month for around $419.

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 Friday. momondo users have found tickets for Friday departures for as low as $128. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Ontario to Louisville on a Wednesday will generally be more expensive and average around $268. 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 $206. 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 February 2025, prices for Ontario to Louisville flights are approximately 39% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$154

Fastest flight time

5h 32m

Direct flights

None

Airports in Louisville

1 airport
The best one-way flight to Louisville from Ontario in the past 72 hours is $154. The best round-trip flight deal from Ontario to Louisville found on momondo in the last 72 hours is $295.
The fastest flight from Ontario to Louisville takes 5h 32m
There are no direct flights from Ontario to Louisville. Popular non-direct route for this connection is Ontario Airport - Louisville Intl Airport.
There is 1 airport near Louisville: Louisville Intl (SDF)

  • 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 32m 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?

  • 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?


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
DeltaPriceFrom $326Free CancellationRating
8.0
8,163 reviews
Search Delta flights
American AirlinesPriceFrom $326Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $354Free CancellationRating
7.4
8,734 reviews
Search United Airlines flights
SouthwestPriceFrom $367Free CancellationRating
8.1
4,369 reviews
Search Southwest flights

Traveling to a place near Louisville?

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

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?

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.


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