Direct (nonstop) flights from Ontario to Atlanta
1 airline flys nonstop from Ontario International Airport (ONT) to Hartsfield–Jackson Atlanta International Airport (ATL). It's 1,898 miles (3,055 km), about 4h 13m in the air. Operated by Delta Air Lines.
Delta Air Lines
Route data last updated: May 31, 2026
Airlines with non-stop flights
DL
Delta Air Lines
Alternative Routes
Other ways to fly from Ontario to Atlanta with one stop · direct emits 321 kg CO₂ per passenger
Looking for the return flight?
ATL → ONT: Flights from Atlanta to OntarioOther direct flights from Ontario
Direct flights from Atlanta (ATL)
Frequently Asked Questions
How long is the direct flight from Ontario to Atlanta?
A nonstop flight from Ontario (ONT) to Atlanta (ATL) takes approximately 4 hours and 13 minutes. The distance is 1,898 miles (3,055 km).
Which airlines fly nonstop from Ontario to Atlanta?
Just Delta Air Lines.
Is there a nonstop flight from Ontario to Atlanta?
Yes. 1 airline: Delta Air Lines.
How far is Ontario from Atlanta?
The flight distance from Ontario to Atlanta is 1,898 miles (3,055 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Los Angeles.
What type of aircraft flies from Ontario to Atlanta?
At 4h 13m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Ontario to Atlanta?
Roughly 321 kg CO2 per passenger one-way. That's about the same as driving 1,605 km.
Is the return flight from Atlanta to Ontario also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Ontario to Atlanta?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Ontario International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.