Route · PDX → BOI · 2020–2025 BTS data
Portland to Boise
The PDX–BOI corridor (Portland, OR → Boise, ID) runs ahead of the national average, served by 8 carriers across roughly 344 miles.
Data updated 2026-06-13
- 87.3%
- On-time
- +8.3 pts
- vs US avg
- 64 min
- Delay when late
- 5,377
- Flights
Cancelled
0.5%
Best Month
Apr 2025 94%
Worst Month
Aug 2024 76%
Distance
344 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 75 | 14 | 0 | 0 | AS,OO |
| Nov 2025 | 79 | 11 | 5 | 0 | OO,AS |
| Oct 2025 | 89 | 12 | 1 | 0 | AS,OO |
| Sep 2025 | 90 | 11 | 0 | 0 | OO,AS |
| Aug 2025 | 71 | 7 | 0 | 0 | OO,AS |
| Jul 2025 | 58 | 8 | 0 | 0 | AS,OO |
| Jun 2025 | 68 | 10 | 0 | 0 | AS,OO |
| May 2025 | 78 | 6 | 0 | 0 | AS,OO |
| Apr 2025 | 81 | 5 | 0 | 0 | OO |
| Mar 2025 | 100 | 17 | 0 | 0 | OO |
| Feb 2025 | 98 | 15 | 2 | 0 | OO |
| Jan 2025 | 103 | 21 | 0 | 0 | OO |
| Dec 2024 | 102 | 19 | 1 | 0 | OO |
| Nov 2024 | 97 | 15 | 0 | 0 | OO |
| Oct 2024 | 85 | 12 | 0 | 0 | OO |
| Sep 2024 | 144 | 26 | 0 | 0 | OO |
| Aug 2024 | 111 | 27 | 0 | 0 | OO |
| Jul 2024 | 88 | 13 | 0 | 0 | OO |
| Jun 2024 | 101 | 15 | 0 | 0 | OO |
| May 2024 | 113 | 14 | 0 | 0 | OO |
| Apr 2024 | 75 | 10 | 0 | 0 | OO |
| Mar 2024 | 51 | 8 | 0 | 0 | OO |
| Feb 2024 | 38 | 6 | 0 | 0 | OO |
| Jan 2024 | 34 | 12 | 1 | 0 | OO |
Cancellation Rate
0.5%
10 of 2,029 flights
Diversion Rate
0.0%
0 of 2,029 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PDX - Portland
Full on-time, delay-cause, and seasonal performance for Portland, OR.
Origin airport →BOI - Boise
Full on-time, delay-cause, and seasonal performance for Boise, ID.
Destination airport →Compare the two airports
See PDX and BOI side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to PDX–BOI.
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What the Data Says About PDX to BOI
Portland to Boise (PDX to BOI) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 87.3% on-time rate across 5,377 flights, with delays that do happen averaging 63.7 minutes. The corridor runs roughly 344 miles and is served by 8 carriers. Over the most recent 24 months, 10 of 2,029 flights were cancelled (0.5%) and 0 diverted (0.0%).
The monthly split is wide on this route: Apr 2025 posted the strongest performance at 94% on-time, while Aug 2024 came in at just 76% - a 18-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.