Route · PDX → BOS · 2020–2025 BTS data
Portland to Boston
The PDX–BOS corridor (Portland, OR → Boston, MA) runs behind the national average, served by 3 carriers across roughly 2,537 miles.
Data updated 2026-06-13
- 74.1%
- On-time
- -4.9 pts
- vs US avg
- 78 min
- Delay when late
- 2,333
- Flights
Cancelled
0.4%
Best Month
Oct 2024 89%
Worst Month
May 2025 56%
Distance
2,537 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 39 | 8 | 0 | 0 | AS |
| Nov 2025 | 38 | 4 | 0 | 1 | AS |
| Oct 2025 | 48 | 16 | 1 | 0 | AS |
| Sep 2025 | 49 | 13 | 0 | 0 | AS,B6 |
| Aug 2025 | 88 | 20 | 0 | 0 | AS,B6 |
| Jul 2025 | 92 | 28 | 1 | 0 | AS,B6 |
| Jun 2025 | 90 | 18 | 0 | 0 | AS,B6 |
| May 2025 | 80 | 35 | 0 | 0 | AS,B6 |
| Apr 2025 | 31 | 1 | 0 | 0 | AS,B6 |
| Dec 2024 | 45 | 5 | 0 | 0 | AS |
| Nov 2024 | 36 | 4 | 0 | 0 | AS |
| Oct 2024 | 72 | 8 | 0 | 0 | AS,B6 |
| Sep 2024 | 78 | 23 | 1 | 0 | AS,B6 |
| Aug 2024 | 87 | 29 | 0 | 1 | AS,B6 |
| Jul 2024 | 93 | 38 | 0 | 0 | AS,B6 |
| Jun 2024 | 88 | 15 | 2 | 0 | AS,B6 |
| May 2024 | 77 | 19 | 0 | 0 | AS,B6 |
| Apr 2024 | 30 | 9 | 0 | 0 | AS |
| Dec 2023 | 31 | 6 | 0 | 0 | AS |
| Nov 2023 | 30 | 3 | 0 | 0 | AS |
| Oct 2023 | 59 | 11 | 0 | 1 | AS,B6 |
| Sep 2023 | 63 | 27 | 1 | 0 | AS,B6 |
| Aug 2023 | 84 | 26 | 0 | 0 | AS,B6 |
| Jul 2023 | 84 | 22 | 0 | 2 | AS,B6 |
Cancellation Rate
0.4%
6 of 1,512 flights
Diversion Rate
0.3%
5 of 1,512 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 →BOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
Destination airport →Compare the two airports
See PDX and BOS 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–BOS.
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What the Data Says About PDX to BOS
On-time performance on the PDX to BOS pairing (Portland to Boston) trails a chunk of the network: 74.1% of 2,333 tracked flights arrived on schedule, with a 78.1-minute average delay on the ones that ran late. The route spans about 2,537 miles across 3 carriers. Cancellations over the trailing 24 months hit 0.4% (6 of 1,512 flights), with 0.3% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 89% on-time, while May 2025 came in at just 56% - a 33-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.