Houston (IAH) to Portland (PDX)
Flight time
≈ 4h 27m
Bearing
314° NW
Houston (IAH) to Portland (PDX) is 1,823 miles (2,934 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAH–PDX
Filed traffic dataIn July 2026, United Airlines operated the most departures, one of 2 carriers flying nonstop IAH–PDX; the Boeing 737-900 was the most common aircraft at 39% of departures; flights ran 86% full.
Departures
233
July 2026
Seats
41,444
both directions
Passengers
35,708
both directions
Load factor
86.2%
RPM ÷ ASM
Who flies IAH–PDX?
United Airlines operated the most nonstop IAH–PDX departures in July 2026 (171), one of 2 carriers on the route.
- UA
171 departures · 30,544 seats
Share of departures73.4%90.6%
Load
- AS
62 departures · 10,900 seats
Share of departures26.6%73.7%
Load
What plane flies IAH–PDX?
In July 2026, the Boeing 737-900 flew 39% of IAH–PDX departures — more than any other aircraft type.
- Boeing 737-900
92 departures · 90.7% load
39.5% - Boeing 737 MAX 9
82 departures · 87.1% load
35.2% - Boeing 737-900ER
46 departures · 77.0% load
19.7% - Boeing 737-800
10 departures · 79.8% load
4.3% - Boeing 737 MAX 8
3 departures · 79.9% load
1.3%
How has IAH–PDX traffic changed?
Nonstop IAH–PDX departures rose from 220 in August 2025 to 233 in July 2026.
Monthly nonstop IAH–PDX traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
220 departures · 31,741 passengers
88.0%
Load
September 2025
192 departures · 24,021 passengers
79.0%
Load
October 2025
234 departures · 32,467 passengers
82.1%
Load
November 2025
180 departures · 25,504 passengers
83.0%
Load
December 2025
212 departures · 30,791 passengers
84.8%
Load
January 2026
186 departures · 24,723 passengers
78.0%
Load
February 2026
160 departures · 22,120 passengers
82.0%
Load
March 2026
178 departures · 24,872 passengers
82.5%
Load
April 2026
179 departures · 23,833 passengers
77.3%
Load
May 2026
237 departures · 31,446 passengers
76.1%
Load
June 2026
231 departures · 34,898 passengers
85.0%
Load
July 2026
233 departures · 35,708 passengers
86.2%
Load
By direction
Each direction is filed separately — they rarely match.
IAH → PDX
85.2% full
117 departures · 17,700 passengers
PDX → IAH
87.2% full
116 departures · 18,008 passengers
Nonstop IAH–PDX traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Houston (IAH) from Portland (PDX)?
IAH to PDX is 1,823 miles (2,934 km / 1,584 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAH to PDX?
A nonstop covers the 1,823-mile great-circle distance in roughly 4h 27m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAH–PDX?
In July 2026, the Boeing 737-900 flew the largest share of departures (39.5%), followed by the Boeing 737 MAX 9 (35.2%).
What mileage do I earn flying IAH–PDX?
Distance-based programs credit off the 1,823-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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