Chicago (ORD) to Portland (PDX)
Flight time
≈ 4h 16m
Bearing
290° W
Chicago (ORD) to Portland (PDX) is 1,735 miles (2,792 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ORD–PDX
Filed traffic dataIn May 2026, United Airlines operated the most departures, one of 3 carriers flying nonstop ORD–PDX; the Boeing 737-800 was the most common aircraft at 33% of departures; flights ran 80% full.
Departures
568
May 2026
Seats
101,397
both directions
Passengers
81,452
both directions
Load factor
80.3%
RPM ÷ ASM
Who flies ORD–PDX?
United Airlines operated the most nonstop ORD–PDX departures in May 2026 (297), one of 3 carriers on the route.
- UA
297 departures · 52,671 seats
Share of departures52.3%80.6%
Load
- AA
208 departures · 37,954 seats
Share of departures36.6%78.3%
Load
- AS
63 departures · 10,772 seats
Share of departures11.1%86.2%
Load
What plane flies ORD–PDX?
In May 2026, the Boeing 737-800 flew 33% of ORD–PDX departures — more than any other aircraft type.
- Boeing 737-800
187 departures · 85.1% load
32.9% - Airbus A321
117 departures · 77.8% load
20.6% - Boeing 737-900ER
98 departures · 87.3% load
17.3% - Airbus A321neo
65 departures · 66.3% load
11.4% - Boeing 737 MAX 9
54 departures · 79.0% load
9.5% - Boeing 737 MAX 8
42 departures · 76.0% load
7.4% - Airbus A319
3 departures · 94.7% load
0.5% - Boeing 737-700
2 departures · 87.3% load
0.4%
How has ORD–PDX traffic changed?
Nonstop ORD–PDX departures fell from 577 in June 2025 to 568 in May 2026.
Monthly nonstop ORD–PDX traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
577 departures · 90,420 passengers
88.4%
Load
July 2025
579 departures · 95,849 passengers
91.0%
Load
August 2025
579 departures · 95,160 passengers
91.4%
Load
September 2025
510 departures · 80,064 passengers
87.5%
Load
October 2025
524 departures · 82,287 passengers
88.2%
Load
November 2025
341 departures · 50,453 passengers
85.5%
Load
December 2025
327 departures · 51,048 passengers
90.1%
Load
January 2026
276 departures · 38,474 passengers
81.5%
Load
February 2026
295 departures · 41,112 passengers
81.3%
Load
March 2026
354 departures · 52,794 passengers
86.1%
Load
April 2026
474 departures · 67,414 passengers
81.5%
Load
May 2026
568 departures · 81,452 passengers
80.3%
Load
By direction
Each direction is filed separately — they rarely match.
PDX → ORD
77.9% full
285 departures · 39,662 passengers
ORD → PDX
82.8% full
283 departures · 41,790 passengers
Nonstop ORD–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 Chicago (ORD) from Portland (PDX)?
ORD to PDX is 1,735 miles (2,792 km / 1,507 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ORD to PDX?
A nonstop covers the 1,735-mile great-circle distance in roughly 4h 16m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ORD–PDX?
In May 2026, the Boeing 737-800 flew the largest share of departures (32.9%), followed by the Airbus A321 (20.6%).
What mileage do I earn flying ORD–PDX?
Distance-based programs credit off the 1,735-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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