Route
SJC → PDX
Mineta San Jose International Airport Portland International Airport
How punctual is this route?
- On-time arrivals
- 85.6%
- Less than 15 minutes late
- Cancelled
- 0.1%
- Of scheduled flights
- Average delay when late
- 57 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,684
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 67%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 4%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.2% | 150 |
| October 2025 | 80.9% | 162 |
| November 2025 | 83.8% | 117 |
| December 2025 | 87.0% | 184 |
| January 2026 | 89.0% | 127 |
| February 2026 | 89.1% | 110 |
| March 2026 | 88.6% | 105 |
| April 2026 | 90.4% | 115 |
| May 2026 | 90.5% | 116 |
| June 2026 | 80.3% | 157 |
| July 2026 | 85.7% | 168 |
| August 2026 | 83.6% | 173 |
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 |
|---|---|---|---|---|
| Southwest Airlines | 923 | 80.0% | 0.0% | 54 min |
| SkyWest Airlines | 473 | 91.1% | 0.0% | 65 min |
| Alaska Airlines | 288 | 94.4% | 0.7% | 75 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OO3313
7% late · 123 flights
-
AS1633
10% late · 70 flights
-
AS679
1% late · 69 flights
-
OO3030
26% late · 65 flights
-
OO3379
5% late · 59 flights
-
WN547
5% late · 58 flights
-
WN3693
0% late · 52 flights
-
WN1822
28% late · 46 flights
-
WN384
44% late · 43 flights
-
OO3044
2% late · 42 flights
-
WN4532
2% late · 41 flights
-
WN1891
2% late · 40 flights
-
WN2433
31% late · 36 flights
-
WN4603
14% late · 36 flights
-
OO3004
9% late · 35 flights
-
OO3017
15% late · 33 flights
-
WN985
33% late · 33 flights
-
AS520
10% late · 31 flights
-
WN2149
3% late · 31 flights
-
WN2461
23% late · 31 flights
-
AS550
3% late · 29 flights
-
AS1341
0% late · 28 flights
-
WN2549
11% late · 28 flights
-
WN4108
30% late · 27 flights
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