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Uncover the best deals on Ontario to Atlanta flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest ONT - ATL Flights
Useful information for finding best airline tickets from Ontario International to Hartsfield Jackson Atlanta International on your next trip.
Cheapest Round Trip Flight
$141
Frontier Airlines
• 1 stop
• 20h 39m
Jun 25 – Jun 28
The cheapest round trip flight from Ontario to Atlanta (ONT-ATL-ONT) is currently $141
Cheapest One way Flight
$235
United Airlines
• 1 stop
• 12h 28m
Jul 02
The cheapest one way flight from Ontario to Atlanta (ONT-ATL) is currently $235
Cheapest Direct Flight
$363
Alaska Airlines
• nonstop
•
Jun 30
The cheapest nonstop flight from Ontario to Atlanta (ONT-ATL) is currently $363
Fastest Flight
12h 13m
The fastest nonstop flight from Ontario to Atlanta (ONT-ATL) takes 12h 13m
Top Airlines Flying from Ontario to Atlanta
Latest Flight Deals from Ontario (ONT) to Atlanta (ATL)
Compare and book low fare round-trip air tickets from Ontario to Atlanta. Ideal for travelers with confirmed return itineraries.
Jun 25 - Jun 28, Economy
Ontario → Atlanta
20h 39m
5:43 PM - 9:22 AM • 1 stop
Ontario → Atlanta
14h 14m
10:54 AM - 4:48 PM • 1 stop
Frontier Airlines
Jun 25 - Jun 28, Economy
Ontario → Atlanta
20h 21m
3:34 PM - 6:55 AM • 1 stop
Ontario → Atlanta
14h 14m
10:54 AM - 4:48 PM • 1 stop
Frontier Airlines
Jun 25 - Jun 28, Economy
Ontario → Atlanta
20h 7m
6:47 PM - 9:54 AM • 1 stop
Ontario → Atlanta
10h 54m
11:14 AM - 3:08 PM • 1 stop
Frontier Airlines
Jun 26 - Jun 30, Economy
Ontario → Atlanta
20h 21m
3:34 PM - 6:55 AM • 1 stop
Ontario → Atlanta
10h 54m
11:14 AM - 3:08 PM • 1 stop
Frontier Airlines
Jun 26 - Jun 30, Economy
Ontario → Atlanta
32h 5m
3:34 PM - 1:59 PM • 1 stop
Ontario → Atlanta
27h 5m
8:40 PM - 10:05 AM • 1 stop
Frontier Airlines
Explore competitive one-way airfare options for ONT - ATL flights. Best suited for flexible or open-ended travel plans.
Flying to Atlanta soon? We've surfaced some of the most affordable last-minute flights from Ontario to Atlanta, ideal for urgent plans or spontaneous trips.
Jun 25 - Jun 28, Economy
Ontario → Atlanta
20h 39m
5:43 PM - 9:22 AM • 1 stop
Ontario → Atlanta
14h 14m
10:54 AM - 4:48 PM • 1 stop
Frontier Airlines
Jun 25 - Jun 28, Economy
Ontario → Atlanta
20h 21m
3:34 PM - 6:55 AM • 1 stop
Ontario → Atlanta
14h 14m
10:54 AM - 4:48 PM • 1 stop
Frontier Airlines
Jun 25 - Jun 28, Economy
Ontario → Atlanta
20h 7m
6:47 PM - 9:54 AM • 1 stop
Ontario → Atlanta
10h 54m
11:14 AM - 3:08 PM • 1 stop
Frontier Airlines
Jun 26 - Jun 30, Economy
Ontario → Atlanta
20h 21m
3:34 PM - 6:55 AM • 1 stop
Ontario → Atlanta
10h 54m
11:14 AM - 3:08 PM • 1 stop
Frontier Airlines
Jun 26 - Jun 30, Economy
Ontario → Atlanta
32h 5m
3:34 PM - 1:59 PM • 1 stop
Ontario → Atlanta
27h 5m
8:40 PM - 10:05 AM • 1 stop
Frontier Airlines
Looking for the fastest way to Atlanta? These direct flight options from ONT to ATL offer both convenience and value—no layovers, just straight to your destination.
Jun 30 - Jul 04, Economy
Ontario → Atlanta
- • nonstop
Ontario → Atlanta
- • nonstop
Alaska Airlines
Jun 30 - Jul 04, Economy
Ontario → Atlanta
- • nonstop
Ontario → Atlanta
- • nonstop
Delta Airlines
Jun 30 - Jul 04, Economy
Ontario → Atlanta
- • nonstop
Ontario → Atlanta
- • nonstop
Delta Airlines
Jun 30 - Jul 04, Economy
Ontario → Atlanta
- • nonstop
Ontario → Atlanta
- • nonstop
Delta Airlines
Jun 30 - Jul 04, Economy
Ontario → Atlanta
- • nonstop
Ontario → Atlanta
- • nonstop
Delta Airlines
FAQs on Ontario to Atlanta Flights
What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to ATL?
The most popular airline flying from Ontario to Atlanta are
Can I fly from ONT to ATL non-stop?
Yes, you can fly ONT to ATL non-stop on
Which airlines fly nonstop between Ontario and Atlanta?
The non-stop flights between Ontario and Atlanta are .
What’s the earliest departure time from ONT to ATL Airport?
The earliest flight leaves ONT at 5:45 am and lands in ATL - Hartsfield Jackson Atlanta International
What are the airports in Atlanta?
ATL
Can I make changes to my Ontario to Atlanta 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 ATL?
Read the fare rules of the Ontario to Atlanta 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 Atlanta?
operate flights between Ontario and Atlanta
How long does a flight from Ontario to Atlanta take?
It takes approximately 4 hour to fly non-stop from ONT to ATL, which is 1899.48 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Atlanta (ATL) ?
In the past couple of days, the cheapest tickets to ATL from ONT were found on DL : USD 524
Do I need a passport to fly between ONT and ATL?
No
What’s the latest departure time from ONT to ATL ?
The last flight leaves ONT at 10:4500 pm
Ontario (ONT) to Atlanta (ATL): Airport Information
| Origin Airport | Ontario International , Ontario, US |
| Destination Airport | Hartsfield Jackson Atlanta International , Atlanta, US |
| Distance | 1899 miles |
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