Cheap Flight Tickets from Louisville (SDF) to Ontario (ONT), Starting at $497

Good to Know: Cheapest and Fastest SDF - ONT Flights

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

Cheapest Round Trip Flight

$497

DL Delta Airlines • 2 stops • 32h 23m

Jul 31 – Aug 05

The cheapest round trip flight from Louisville to Ontario (SDF-ONT-SDF) is currently $497

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Fastest Flight

9h 15m

The fastest nonstop flight from Louisville to Ontario (SDF-ONT) takes 9h 15m

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

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

Jul 31 - Aug 05, Economy
DL
Louisville → Ontario
32h 23m
7:05 AM - 11:48 PM • 2 stops
DL
Louisville → Ontario
15h 24m
12:00 PM - 12:24 AM • 1 stop
$497
Delta Airlines
Jul 31 - Aug 05, Economy
DL
Louisville → Ontario
27h 28m
10:00 AM - 11:48 PM • 2 stops
DL
Louisville → Ontario
15h 24m
12:00 PM - 12:24 AM • 1 stop
$574
Delta Airlines
Jul 31 - Aug 05, Economy
DL
Louisville → Ontario
13h 23m
4:47 PM - 9:50 PM • 1 stop
DL
Louisville → Ontario
25h 50m
5:05 PM - 11:55 AM • 2 stops
$621
Delta Airlines
Jul 31 - Aug 05, Economy
DL
Louisville → Ontario
20h 26m
2:22 PM - 11:48 PM • 2 stops
DL
Louisville → Ontario
15h 24m
12:00 PM - 12:24 AM • 1 stop
$709
Delta Airlines
Jul 31 - Aug 05, Economy
DL
Louisville → Ontario
22h
8:10 AM - 6:30 PM • 1 stop
DL
Louisville → Ontario
27h 31m
12:55 PM - 8:46 AM • 2 stops
$714
Delta Airlines
Jul 31 - Aug 05, Economy
DL
Louisville → Ontario
18h 50m
10:00 AM - 6:30 PM • 1 stop
DL
Louisville → Ontario
27h 31m
12:55 PM - 8:46 AM • 2 stops
$714
Delta Airlines

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

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

FAQs on Louisville to Ontario Flights

What are the airports in Louisville?
SDF
What’s the most popular airline flying from SDF to ONT?
The most popular airline flying from Louisville to Ontario are
Can I fly from SDF to ONT non-stop?
NO
Which airlines fly nonstop between Louisville and Ontario?
The non-stop flights between Louisville and Ontario are .
What’s the earliest departure time from SDF to ONT Airport?
The earliest flight leaves SDF at 6:00 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Louisville to Ontario 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 SDF to ONT?
Read the fare rules of the Louisville to Ontario 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 Louisville and Ontario?
operate flights between Louisville and Ontario
How long does a flight from Louisville to Ontario take?
It takes approximately 4 hour to fly non-stop from SDF to ONT, which is 1796.09 miles by air.
Which airlines provide the cheapest flights from Louisville (SDF) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from SDF were found on DL : USD 621
Do I need a passport to fly between SDF and ONT?
No
What’s the latest departure time from SDF to ONT ?
The last flight leaves SDF at 5:50 pm

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

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

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