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Home / Oakland — Ontario

Cheap flights Oakland — Ontario

from $160 590 km ~1h 12m 5 flights found 3 airlines cheapest on Friday
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $160 on 23.11.2026
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 2 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
23 Nov 2026, Mon
Frontier Airlines F9 4222
07:35
OAK Metropolitan Oakland International Airport
08:52
ONT Ontario International Airport
1h 17m Direct
View this ticket
26 Dec 2026, Sat
Alaska Airlines AS 2105
19:04
OAK Metropolitan Oakland International Airport
23:10
ONT Ontario International Airport
4h 6m 1 stop
View this ticket
Route characteristics
Distance
590 km
Flight time
1h 12m
Time difference
+0h
Minimum price
from $160 (23.11.2026)
Average price
$375
Maximum price
$590
Cheapest day
Friday
Departure airports (2)
OAK Metropolitan Oakland International Airport SFO San Francisco International Airport
Arrival airports (1)
ONT Ontario International Airport
Airlines (3)
F9 Frontier Airlines UA United Airlines AS Alaska Airlines
Agencies (5)
Kupi.com Farera Vayama City.Travel Flightnetwork
Prices by day of week
Price trend by month
Airlines — cheapest prices 3
Frontier Airlines
Frontier Airlines
Low-cost 3 flights · 3 days
$82
United Airlines
United Airlines
1 flights · 1 days
$235
Alaska Airlines
Alaska Airlines
1 flights · 1 days
$590
Where to buy tickets 5
Kupi.com
1 tickets · 1 days
from $82
Farera
1 tickets · 1 days
from $138
Vayama
1 tickets · 1 days
from $160
City.Travel
1 tickets · 1 days
from $235
Flightnetwork
1 tickets · 1 days
from $590
Airports

From — Oakland (2)

  • OAK Metropolitan Oakland International Airport
  • SFO San Francisco International Airport

To — Ontario (1)

  • ONT Ontario International Airport
Other destinations from Oakland
Frequently asked questions about the route Oakland — Ontario
How long is the flight from Oakland to Ontario?
Approximate flight time — 1h 12m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Oakland to Ontario?
The straight-line distance — 590 km.
How much do flights from Oakland to Ontario cost?
The minimum price over 3 months — from $160 on 23.11.2026.
What is the average ticket price?
The average price — $375. Range: $160 — $590.
What is the time difference between Oakland and Ontario?
The difference — +0h.
From which airports does Oakland operate flights?
From Oakland: OAK (Metropolitan Oakland International Airport), SFO (San Francisco 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 3 airlines: Frontier Airlines, United Airlines, Alaska Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $160. Total direct flights found: 1.
Which day of the week is cheapest?
The cheapest day of the week — Friday.
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 Oakland — Ontario

Flights Oakland — Ontario is a popular route. The straight-line distance is 590 km. Flight time 1h 12m. Time difference +0h.

From Oakland (OAK) flights depart from 2 airports: OAK, SFO. To Ontario (ONT) — 1 arrival airport: ONT.

3 airlines operate on this route: Frontier Airlines, United Airlines, Alaska Airlines.

The minimum price for the next 3 months — from $160 (23.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $375, ranging from $160 to $590. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Friday.

Other destinations in United States from Oakland