Boise (BOI) – Portland (PDX)
- Distance
- 554 km
- 344 mi · 299 nm
- Flight time
- 1 h 20 min / 1 h 13 min
- Average gate to gate: BOI → PDX / back
- Time difference
- 1 h
- CO2 per passenger
- 69 kg
- One way, economy, incl. RF (41 kg CO2 only)
- Passengers / year
- 295,945
- Aug 2025 – Jul 2026 · +18.1%
- Flights / week
- 67
- Both directions, average
- Seats filled
- 75%
- 395,077 seats a year
- Airlines nonstop
- 3
- AS, QX, OO
Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources
The way there
- Heading from BOI
- 296°
- Heading from PDX
- 112°
- Halfway point
- 44.62, -119.36
- Great-circle km
- 553 km (sphere, for EU261)
- In the air BOI → PDX
- 59 min
- In the air PDX → BOI
- 53 min
- Clocks
- Portland is 1 h behind Boise
The estimate for a route without real times is 1 h 25 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 24,438 |
| Sep 2025 | 24,592 |
| Oct 2025 | 26,461 |
| Nov 2025 | 22,528 |
| Dec 2025 | 26,494 |
| Jan 2026 | 24,666 |
| Feb 2026 | 23,086 |
| Mar 2026 | 23,874 |
| Apr 2026 | 21,770 |
| May 2026 | 26,567 |
| Jun 2026 | 25,441 |
| Jul 2026 | 26,028 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 302 |
| Sep 2025 | 290 |
| Oct 2025 | 302 |
| Nov 2025 | 272 |
| Dec 2025 | 305 |
| Jan 2026 | 280 |
| Feb 2026 | 255 |
| Mar 2026 | 300 |
| Apr 2026 | 293 |
| May 2026 | 294 |
| Jun 2026 | 290 |
| Jul 2026 | 301 |
Airlines flying BOI–PDX nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| ASAlaska Airlines | 26 | 53% |
| QXHorizon Air | 29 | 33% |
| OOSkyWest Airlines | 12 | 14% |
Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources
Aircraft on this route
- Embraer ERJ-175 · 2,104 flights
- Boeing 737-800 · 505 flights
- Boeing 737-900ER · 413 flights
- Boeing B737 Max 900 · 380 flights
- Boeing B737 Max 800 · 75 flights
- Boeing 737-900 · 4 flights
- Boeing 737-700/700LR/Max 7 · 3 flights
Also carried: 45 tonnes of freight and 0 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 89.1%
- Arrived within 15 min of schedule
- Average delay
- 7 min
- Late arrivals count, early ones as 0
- Cancelled
- 0.7%
- Flights counted
- 1,992
- Aug 2025 – Jul 2026
| Airline | On time | Average delay |
|---|---|---|
| ASAlaska Airlines | 88.4% | 7 min |
| OOSkyWest Airlines | 90.7% | 7 min |
Delay minutes by cause: airline 28% · aircraft arriving late 58% · air traffic system 11% · weather 2% · security 0%.
Both directions, Aug 2025 – Jul 2026. BTS Reporting Carrier On-Time Performance (US domestic flights of the larger US airlines). Sources
What passengers paid
- Average fare, Q1 2026
- $202
- One way, all cabins
- Average over a year
- $198
- Q2 2025 – Q1 2026
- Largest airline
- Alaska Airlines
- 96% of passengers · $201
- Lowest-fare airline
- Alaska Airlines
- 96% of passengers · $201
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $197 · Q3 2025 $193 · Q4 2025 $201 · Q1 2026 $202).
Fare outlook, Q1 2027: about $206, likely $178–$235
The average fare paid we expect a year after Q1 2026, the newest DOT quarter. On this route, past forecasts made this way fell inside the range 90% of the time over 21 quarters (median error 4.2%). An estimate from US DOT data: not a price you can book, not a guarantee, not advice on when to buy. How the outlook works
U.S. DOT Consumer Airfare Report, Table 6 (airline ticket sample, US domestic city pairs; each city here has this one airport). Sources
Delay compensation (EU261 / UK261)
Measured by great-circle distance: 553 km.
Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).
Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.