Ontario (ONT) to Portland (PDX)
Flight time
≈ 2h 29m
Bearing
343° N
Ontario (ONT) to Portland (PDX) is 839 miles (1,351 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ONT–PDX
Filed traffic dataIn May 2026, Horizon Air operated the most departures, one of 3 carriers flying nonstop ONT–PDX; the Embraer E175 was the most common aircraft at 67% of departures; flights ran 77% full.
Departures
180
May 2026
Seats
19,660
both directions
Passengers
15,050
both directions
Load factor
76.5%
RPM ÷ ASM
Who flies ONT–PDX?
Horizon Air operated the most nonstop ONT–PDX departures in May 2026 (106), one of 3 carriers on the route.
- QX
106 departures · 8,056 seats
Share of departures58.9%85.9%
Load
- AS
60 departures · 10,540 seats
Share of departures33.3%67.6%
Load
- OO
14 departures · 1,064 seats
Share of departures7.8%94.4%
Load
What plane flies ONT–PDX?
In May 2026, the Embraer E175 flew 67% of ONT–PDX departures — more than any other aircraft type.
- Embraer E175
120 departures · 86.9% load
66.7% - Boeing 737 MAX 9
31 departures · 65.7% load
17.2% - Boeing 737-900ER
21 departures · 66.3% load
11.7% - Boeing 737-800
6 departures · 78.2% load
3.3% - Boeing 737 MAX 8
2 departures · 84.9% load
1.1%
How has ONT–PDX traffic changed?
Nonstop ONT–PDX departures fell from 224 in June 2025 to 180 in May 2026.
Monthly nonstop ONT–PDX traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
224 departures · 21,356 passengers
87.7%
Load
July 2025
233 departures · 23,338 passengers
89.7%
Load
August 2025
215 departures · 21,280 passengers
88.7%
Load
September 2025
181 departures · 16,431 passengers
81.5%
Load
October 2025
191 departures · 18,354 passengers
83.5%
Load
November 2025
189 departures · 21,084 passengers
73.0%
Load
December 2025
153 departures · 16,964 passengers
83.5%
Load
January 2026
183 departures · 16,007 passengers
61.1%
Load
February 2026
147 departures · 14,091 passengers
68.6%
Load
March 2026
171 departures · 16,155 passengers
76.3%
Load
April 2026
177 departures · 16,249 passengers
83.2%
Load
May 2026
180 departures · 15,050 passengers
76.5%
Load
By direction
Each direction is filed separately — they rarely match.
ONT → PDX
80.1% full
91 departures · 8,017 passengers
PDX → ONT
72.9% full
89 departures · 7,033 passengers
Nonstop ONT–PDX traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Ontario (ONT) from Portland (PDX)?
ONT to PDX is 839 miles (1,351 km / 729 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ONT to PDX?
A nonstop covers the 839-mile great-circle distance in roughly 2h 29m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ONT–PDX?
In May 2026, the Embraer E175 flew the largest share of departures (66.7%), followed by the Boeing 737 MAX 9 (17.2%).
What mileage do I earn flying ONT–PDX?
Distance-based programs credit off the 839-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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