Route
BOI → PDX
Boise Air Terminal/Gowen Field Portland International Airport
How punctual is this route?
- On-time arrivals
- 91.7%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 75 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,067
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 61%
- Airline (crew, maintenance, cleaning) 29%
- Air traffic control & airport 7%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 95.0% | 120 |
| October 2025 | 96.6% | 119 |
| November 2025 | 90.4% | 108 |
| December 2025 | 84.8% | 105 |
| January 2026 | 93.2% | 103 |
| February 2026 | 94.7% | 95 |
| March 2026 | 89.3% | 84 |
| April 2026 | 94.7% | 57 |
| May 2026 | 86.7% | 76 |
| June 2026 | 93.0% | 57 |
| July 2026 | 84.5% | 58 |
| August 2026 | 94.0% | 85 |
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 | 721 | 92.1% | 0.1% | 74 min |
| SkyWest Airlines | 346 | 90.9% | 1.4% | 77 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
AS229
13% late · 203 flights
-
AS782
6% late · 153 flights
-
OO3358
7% late · 71 flights
-
AS1566
4% late · 70 flights
-
OO3495
9% late · 69 flights
-
AS1120
0% late · 55 flights
-
AS947
4% late · 51 flights
-
AS343
9% late · 43 flights
-
OO3486
13% late · 42 flights
-
AS362
14% late · 35 flights
-
OO3274
3% late · 35 flights
-
OO3004
15% late · 34 flights
-
OO3210
9% late · 33 flights
-
AS1472
0% late · 27 flights
-
AS564
15% late · 27 flights
-
OO3255
5% late · 22 flights
-
AS736
0% late · 21 flights
-
AS107
0% late · 20 flights
-
OO3104
0% late · 20 flights
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