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Home / Portland — Ontario

Cheap flights Portland — Ontario

Portland (PDX, US) Ontario (ONT, US)
from $114 1 344 km ~2h 5m 5 flights found 4 airlines cheapest on Tuesday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $114 on 16.11.2026
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 1 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
16 Nov 2026, Mon
Southwest Airlines WN 510
18:30
PDX Portland International Airport
21:40
ONT Ontario International Airport
3h 10m 1 stop
City.Travel
$114
View this ticket
Route characteristics
Distance
1 344 km
Flight time
2h 5m
Time difference
+0h
Minimum price
from $114 (16.11.2026)
Average price
$114
Maximum price
$114
Cheapest day
Tuesday
Departure airports (1)
PDX Portland International Airport
Arrival airports (1)
ONT Ontario International Airport
Airlines (4)
AA American Airlines WN Southwest Airlines F9 Frontier Airlines AS Alaska Airlines
Agencies (5)
Ubfly Trip.com City.Travel Farera Cheapfaremart
Airlines — cheapest prices 4
American Airlines
American Airlines
1 flights · 1 days
$87
Southwest Airlines
Southwest Airlines
Low-cost 2 flights · 2 days
$103
Frontier Airlines
Frontier Airlines
Low-cost 1 flights · 1 days
$122
Alaska Airlines
Alaska Airlines
1 flights · 1 days
$223
Where to buy tickets 5
Ubfly
1 tickets · 1 days
from $87
Trip.com
1 tickets · 1 days
from $103
City.Travel
1 tickets · 1 days
from $114
Farera
1 tickets · 1 days
from $122
Cheapfaremart
1 tickets · 1 days
from $223
Airports

From — Portland (1)

  • PDX Portland International Airport

To — Ontario (1)

  • ONT Ontario International Airport
Other destinations from Portland
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KZ
Amsterdam
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Anchorage
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Atlanta
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Billings
US
Bangkok
TH · Hub
Nashville
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Banja Luka
BA
Boise
US
Frequently asked questions about the route Portland — Ontario
How long is the flight from Portland to Ontario?
Approximate flight time — 2h 5m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Portland to Ontario?
The straight-line distance — 1 344 km.
How much do flights from Portland to Ontario cost?
The minimum price over 3 months — from $114 on 16.11.2026.
What is the average ticket price?
The average price — $114. Range: $114 — $114.
What is the time difference between Portland and Ontario?
The difference — +0h.
From which airports does Portland operate flights?
From Portland: PDX (Portland 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 4 airlines: American Airlines, Southwest Airlines, Frontier Airlines, Alaska Airlines.
Which day of the week is cheapest?
The cheapest day of the week — Tuesday.
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 Portland — Ontario

Flights Portland — Ontario is a popular route. The straight-line distance is 1 344 km. Flight time 2h 5m. Time difference +0h.

From Portland (PDX) flights depart from 1 airport: PDX. To Ontario (ONT) — 1 arrival airport: ONT.

4 airlines operate on this route: American Airlines, Southwest Airlines, Frontier Airlines, Alaska Airlines.

The minimum price for the next 3 months — from $114 (16.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $114, ranging from $114 to $114. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Tuesday.

Other destinations in United States from Portland
Pasco
US
Pendleton
US
Phoenix
US
Pierre
US
Redmond
US
Reno
US
Everett
US
Palm Springs
US

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