Route · BOI → PDX · 2020–2025 BTS data
Boise to Portland
The BOI–PDX corridor (Boise, ID → Portland, OR) runs ahead of the national average, served by 8 carriers across roughly 344 miles.
Data updated 2026-06-13
- 89.1%
- On-time
- +10.1 pts
- vs US avg
- 67 min
- Delay when late
- 5,804
- Flights
Cancelled
0.6%
Best Month
Jun 2024 98%
Worst Month
Feb 2025 79%
Distance
344 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 105 | 16 | 0 | 0 | AS,OO |
| Nov 2025 | 108 | 10 | 4 | 0 | OO,AS |
| Oct 2025 | 119 | 4 | 1 | 0 | AS,OO |
| Sep 2025 | 120 | 6 | 0 | 0 | OO,AS |
| Aug 2025 | 102 | 10 | 0 | 0 | OO,AS |
| Jul 2025 | 89 | 6 | 0 | 0 | AS,OO |
| Jun 2025 | 98 | 14 | 0 | 0 | AS,OO |
| May 2025 | 96 | 5 | 0 | 0 | AS,OO |
| Apr 2025 | 81 | 4 | 0 | 0 | OO |
| Mar 2025 | 100 | 19 | 0 | 0 | OO |
| Feb 2025 | 98 | 21 | 3 | 0 | OO |
| Jan 2025 | 103 | 14 | 0 | 0 | OO |
| Dec 2024 | 102 | 18 | 1 | 0 | OO |
| Nov 2024 | 97 | 9 | 1 | 0 | OO |
| Oct 2024 | 84 | 8 | 0 | 0 | OO |
| Sep 2024 | 144 | 19 | 0 | 0 | OO |
| Aug 2024 | 111 | 10 | 0 | 0 | OO |
| Jul 2024 | 88 | 8 | 0 | 0 | OO |
| Jun 2024 | 101 | 2 | 1 | 0 | OO |
| May 2024 | 113 | 9 | 0 | 0 | OO |
| Apr 2024 | 75 | 8 | 0 | 0 | OO |
| Mar 2024 | 51 | 7 | 0 | 0 | OO |
| Feb 2024 | 38 | 5 | 0 | 0 | OO |
| Jan 2024 | 36 | 11 | 3 | 0 | OO |
Cancellation Rate
0.6%
14 of 2,259 flights
Diversion Rate
0.0%
0 of 2,259 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BOI - Boise
Full on-time, delay-cause, and seasonal performance for Boise, ID.
Origin airport →PDX - Portland
Full on-time, delay-cause, and seasonal performance for Portland, OR.
Destination airport →Compare the two airports
See BOI and PDX side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to BOI–PDX.
Routes with a similar on-time rate
What the Data Says About BOI to PDX
Boise to Portland (BOI to PDX) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89.1% on-time rate across 5,804 flights, with delays that do happen averaging 67.2 minutes. The corridor runs roughly 344 miles and is served by 8 carriers. Over the most recent 24 months, 14 of 2,259 flights were cancelled (0.6%) and 0 diverted (0.0%).
The monthly split is wide on this route: Jun 2024 posted the strongest performance at 98% on-time, while Feb 2025 came in at just 79% - a 19-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from BOI to PDX? ▼
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Flight Guides
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.