Boise (BOI) to Portland (PDX)
Flight time
≈ 1h 29m
Bearing
296° NW
Boise (BOI) to Portland (PDX) is 343 miles (553 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOI–PDX
US DOT T-100 · filed dataIn April 2026, Horizon Air operated the most departures, one of 3 carriers flying nonstop BOI–PDX; the Embraer E175 was the most common aircraft at 76% of departures; flights ran 76% full.
Departures
293
April 2026
Seats
28,825
both directions
Passengers
21,770
both directions
Load factor
75.5%
passengers ÷ seats
Who flies BOI–PDX?
Horizon Air operated the most nonstop BOI–PDX departures in April 2026 (178), one of 3 carriers on the route.
- QX
Horizon Air
178 departures · 13,528 seats
Share of departures60.8%86.7%
Load
- AS
Alaska Airlines
70 departures · 11,883 seats
Share of departures23.9%65.1%
Load
- OO
SkyWest Airlines
45 departures · 3,414 seats
Share of departures15.4%67.5%
Load
What plane flies BOI–PDX?
In April 2026, the Embraer E175 flew 76% of BOI–PDX departures — more than any other aircraft type.
- Embraer E175
223 departures · 82.8% load
76.1% - Boeing 737-800
29 departures · 71.6% load
9.9% - Boeing 737-900ER
23 departures · 56.3% load
7.8% - Boeing 737 MAX 9
14 departures · 64.5% load
4.8% - Boeing 737 MAX 8
4 departures · 76.6% load
1.4%
How has BOI–PDX traffic changed?
Nonstop BOI–PDX departures fell from 312 in May 2025 to 293 in April 2026.
Monthly nonstop BOI–PDX traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
312 departures · 22,178 passengers
74.1%
Load
June 2025
299 departures · 24,006 passengers
80.4%
Load
July 2025
302 departures · 23,672 passengers
83.4%
Load
August 2025
302 departures · 24,438 passengers
79.0%
Load
September 2025
290 departures · 24,592 passengers
72.8%
Load
October 2025
302 departures · 26,461 passengers
77.8%
Load
November 2025
274 departures · 22,528 passengers
70.5%
Load
December 2025
305 departures · 26,494 passengers
77.5%
Load
January 2026
280 departures · 24,666 passengers
62.8%
Load
February 2026
255 departures · 23,086 passengers
71.7%
Load
March 2026
300 departures · 23,874 passengers
77.2%
Load
April 2026
293 departures · 21,770 passengers
75.5%
Load
By direction
The DOT files each direction separately — they rarely match.
PDX → BOI
76.1% full
147 departures · 11,008 passengers
BOI → PDX
75.0% full
146 departures · 10,762 passengers
Nonstop BOI–PDX traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Boise (BOI) from Portland (PDX)?
BOI to PDX is 343 miles (553 km / 298 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOI to PDX?
A nonstop covers the 343-mile great-circle distance in roughly 1h 29m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOI–PDX?
In April 2026, the Embraer E175 flew the largest share of departures (76.1%), followed by the Boeing 737-800 (9.9%).
What mileage do I earn flying BOI–PDX?
Distance-based programs credit off the 343-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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