Route
PDX → BOS
Portland International Airport Boston Logan International Airport
2,537 miles
Return route BOS → PDX →
How punctual is this route?
- On-time arrivals
- 78.5%
- Less than 15 minutes late
- Cancelled
- 1.9%
- Of scheduled flights
- Average delay when late
- 67 min
- Flights arriving 15+ minutes late
- Flights tracked
- 699
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 36%
- Late-arriving aircraft 34%
- Air traffic control & airport 30%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 73.5% | 49 |
| October 2025 | 66.0% | 48 |
| November 2025 | 89.2% | 38 |
| December 2025 | 79.5% | 39 |
| January 2026 | 82.1% | 30 |
| February 2026 | 100.0% | 22 |
| March 2026 | 91.7% | 36 |
| April 2026 | 84.1% | 45 |
| May 2026 | 83.6% | 61 |
| June 2026 | 79.2% | 101 |
| July 2026 | 69.7% | 114 |
| August 2026 | 75.9% | 116 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Alaska Airlines | 538 | 82.7% | 0.7% | 47 min |
| JetBlue Airways | 161 | 63.8% | 5.6% | 101 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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