Route · BOS → PDX · 2020–2025 BTS data
Boston to Portland
The BOS–PDX corridor (Boston, MA → Portland, OR) runs behind the national average, served by 3 carriers across roughly 2,537 miles.
Data updated 2026-06-13
- 76.3%
- On-time
- -2.7 pts
- vs US avg
- 68 min
- Delay when late
- 2,329
- Flights
Cancelled
0.9%
Best Month
Aug 2025 90%
Worst Month
Jun 2024 58%
Distance
2,537 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 39 | 17 | 1 | 0 | AS |
| Nov 2025 | 38 | 10 | 0 | 0 | AS |
| Oct 2025 | 48 | 11 | 2 | 0 | AS |
| Sep 2025 | 50 | 7 | 0 | 0 | AS,B6 |
| Aug 2025 | 87 | 9 | 0 | 0 | AS,B6 |
| Jul 2025 | 92 | 35 | 1 | 1 | AS,B6 |
| Jun 2025 | 90 | 18 | 0 | 0 | AS,B6 |
| May 2025 | 79 | 15 | 1 | 0 | AS,B6 |
| Apr 2025 | 31 | 3 | 0 | 0 | AS,B6 |
| Dec 2024 | 43 | 11 | 1 | 0 | AS |
| Nov 2024 | 36 | 6 | 0 | 0 | AS |
| Oct 2024 | 72 | 12 | 0 | 0 | AS,B6 |
| Sep 2024 | 77 | 14 | 0 | 0 | AS,B6 |
| Aug 2024 | 88 | 26 | 1 | 0 | AS,B6 |
| Jul 2024 | 93 | 31 | 0 | 1 | AS,B6 |
| Jun 2024 | 88 | 37 | 1 | 0 | AS,B6 |
| May 2024 | 76 | 18 | 3 | 0 | AS,B6 |
| Apr 2024 | 30 | 10 | 0 | 0 | AS |
| Dec 2023 | 31 | 5 | 0 | 0 | AS |
| Nov 2023 | 30 | 8 | 0 | 0 | AS |
| Oct 2023 | 59 | 11 | 1 | 2 | AS,B6 |
| Sep 2023 | 63 | 21 | 0 | 1 | AS,B6 |
| Aug 2023 | 84 | 20 | 1 | 1 | AS,B6 |
| Jul 2023 | 84 | 35 | 1 | 0 | AS,B6 |
Cancellation Rate
0.9%
14 of 1,508 flights
Diversion Rate
0.4%
6 of 1,508 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
Origin airport →PDX - Portland
Full on-time, delay-cause, and seasonal performance for Portland, OR.
Destination airport →Compare the two airports
See BOS 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 BOS–PDX.
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What the Data Says About BOS to PDX
The Boston to Portland corridor (BOS to PDX) posts a 76.3% on-time rate on the lower edge of the average band, based on 2,329 tracked flights. Late flights run 67.7 minutes behind on average. 3 carriers cover the 2,537-mile route; over the last 24 months, 14 of 1,508 flights were cancelled (0.9%) and 0.4% diverted.
The monthly split is wide on this route: Aug 2025 posted the strongest performance at 90% on-time, while Jun 2024 came in at just 58% - a 32-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.