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Home / Atlanta — Ontario

Cheap flights Atlanta — Ontario

Atlanta (ATL, US) Ontario (ONT, US)
from $108 3 055 km ~4h 6m 4 flights found 1 airlines cheapest on Wednesday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $108 on 17.11.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 3 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
18 Nov 2026, Wed
Frontier Airlines F9 3097
02:21
ATL Hartsfield-Jackson Atlanta International Airport
09:48
ONT Ontario International Airport
7h 27m 2 stops
Clickavia
$108
View this ticket
29 Dec 2026, Tue
Frontier Airlines F9 3923
04:40
ATL Hartsfield-Jackson Atlanta International Airport
10:24
ONT Ontario International Airport
5h 44m 1 stop
Trip.com
$202
View this ticket
Route characteristics
Distance
3 055 km
Flight time
4h 6m
Time difference
-3h
Minimum price
from $108 (17.11.2026)
Average price
$139
Maximum price
$202
Cheapest day
Wednesday
Departure airports (1)
ATL Hartsfield-Jackson Atlanta International Airport
Arrival airports (1)
ONT Ontario International Airport
Airlines (1)
F9 Frontier Airlines
Agencies (3)
Clickavia Trip.com Farera
Prices by day of week
Tuesday
$202
avg $202
Wednesday
$108
avg $108
Cheapest
Price trend by month
November 2026
from $108
avg $108
1 flights
December 2026
from $202
avg $202
1 flights
Airlines — cheapest prices 1
Frontier Airlines
Frontier Airlines
Low-cost 4 flights · 4 days
$108
Where to buy tickets 3
Clickavia
1 tickets · 1 days
from $108
Trip.com
2 tickets · 2 days
from $168
Farera
1 tickets · 1 days
from $250
Airports

From — Atlanta (1)

  • ATL Hartsfield-Jackson Atlanta International Airport

To — Ontario (1)

  • ONT Ontario International Airport
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Frequently asked questions about the route Atlanta — Ontario
How long is the flight from Atlanta to Ontario?
Approximate flight time — 4h 6m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Atlanta to Ontario?
The straight-line distance — 3 055 km.
How much do flights from Atlanta to Ontario cost?
The minimum price over 3 months — from $108 on 17.11.2026.
What is the average ticket price?
The average price — $139. Range: $108 — $202.
What is the time difference between Atlanta and Ontario?
The difference — -3h.
From which airports does Atlanta operate flights?
From Atlanta: ATL (Hartsfield-Jackson Atlanta International Airport).
To which airports in Ontario do flights arrive?
To Ontario: ONT (Ontario International Airport).
Which airlines fly this route?
This route is served by 1 airline: Frontier Airlines.
Which day of the week is cheapest?
The cheapest day of the week — Wednesday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Atlanta — Ontario

Flights Atlanta — Ontario is a popular route. The straight-line distance is 3 055 km. Flight time 4h 6m. Time difference -3h.

From Atlanta (ATL) flights depart from 1 airport: ATL. To Ontario (ONT) — 1 arrival airport: ONT.

1 airline operate on this route: Frontier Airlines.

The minimum price for the next 3 months — from $108 (17.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $139, ranging from $108 to $202. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Wednesday.

Other destinations in United States from Atlanta
Dallas
US
Miami
US
Portland
US
Seattle
US
Allentown
US
Albuquerque
US
Albany
US
Alexandria
US

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