Cheap Flight Tickets from Ontario (ONT) to Louisville (SDF), Starting at $113

Good to Know: Cheapest and Fastest ONT - SDF Flights

Useful information for finding best airline tickets from Ontario International to Louisville International Standiford Field on your next trip.

Cheapest Round Trip Flight

$334

DL Delta Airlines • 1 stop • 15h 8m

Jul 29 – Aug 11

The cheapest round trip flight from Ontario to Louisville (ONT-SDF-ONT) is currently $334

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Cheapest One way Flight

$113

WN Southwest Airlines • 2 stops • 22h 25m

Aug 11

The cheapest one way flight from Ontario to Louisville (ONT-SDF) is currently $113

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Fastest Flight

10h 30m

The fastest nonstop flight from Ontario to Louisville (ONT-SDF) takes 10h 30m

Top Airlines Flying from Ontario to Louisville

Delta Airline, DL

Delta Airlines

American Airlines, AA

American Airlines

Southwest Airlines-WN

Southwest Airlines

Latest Flight Deals from Ontario (ONT) to Louisville (SDF)

Compare and book low fare round-trip air tickets from Ontario to Louisville. Ideal for travelers with confirmed return itineraries.

Jul 29 - Aug 11, Economy
DL
Ontario → Louisville
15h 8m
7:05 AM - 7:13 PM • 1 stop
DL
Ontario → Louisville
10h 50m
7:05 AM - 10:55 AM • 1 stop
$334
Delta Airlines
Jul 29 - Aug 11, Economy
DL
Ontario → Louisville
12h 24m
7:05 AM - 5:49 PM • 1 stop
DL
Ontario → Louisville
10h 50m
7:05 AM - 10:55 AM • 1 stop
$334
Delta Airlines
Jul 29 - Aug 11, Economy
AA
Ontario → Louisville
12h 20m
11:59 PM - 10:39 AM • 1 stop
AA
Ontario → Louisville
15h 28m
6:30 PM - 12:58 AM • 1 stop
$355
American Airlines
Jul 29 - Aug 11, Economy
AA
Ontario → Louisville
14h 18m
7:00 AM - 6:58 PM • 1 stop
AA
Ontario → Louisville
12h 35m
6:30 PM - 11:25 PM • 1 stop
$383
American Airlines
Jul 29 - Aug 11, Economy
AA
Ontario → Louisville
14h 16m
5:34 AM - 5:30 PM • 1 stop
AA
Ontario → Louisville
10h 42m
7:03 AM - 10:45 AM • 1 stop
$383
American Airlines
Jul 29 - Aug 11, Economy
DL
Ontario → Louisville
15h 29m
10:00 PM - 10:29 AM • 1 stop
DL
Ontario → Louisville
12h 35m
6:00 AM - 10:55 AM • 1 stop
$397
Delta Airlines

Fly from Ontario to Louisville with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to Louisville? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to Louisville Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to SDF?
The most popular airline flying from Ontario to Louisville are
Can I fly from ONT to SDF non-stop?
NO
Which airlines fly nonstop between Ontario and Louisville?
The non-stop flights between Ontario and Louisville are .
What’s the earliest departure time from ONT to SDF Airport?
The earliest flight leaves ONT at 5:15 am and lands in SDF - Louisville International Standiford Field
What are the airports in Louisville?
SDF
Can I make changes to my Ontario to Louisville flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to SDF?
Read the fare rules of the Ontario to Louisville air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and Louisville?
operate flights between Ontario and Louisville
How long does a flight from Ontario to Louisville take?
It takes approximately 4 hour to fly non-stop from ONT to SDF, which is 1796.09 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Louisville (SDF) ?
In the past couple of days, the cheapest tickets to SDF from ONT were found on WN : USD 113
Do I need a passport to fly between ONT and SDF?
No
What’s the latest departure time from ONT to SDF ?
The last flight leaves ONT at 11:59 pm

Ontario (ONT) to Louisville (SDF): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport Louisville International Standiford Field, Louisville, US
Distance 1796 miles

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