SJC to PDX flight delays & on-time performance
Nonstop flights from Mineta San Jose International Airport to Portland International Airport · 569 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SJC or PDX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Jose (SJC) to Portland (PDX) arrived on time 86% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0% were cancelled, and 4% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (95% on time); Southwest Airlines was the least (80%).
- Departures scheduled around 6am did best (98% on time); around 9pm did worst (55%).
- Tuesday was the most reliable day to fly (91% on time) and Friday the least (79%).
- The largest source of delay minutes was late-arriving aircraft (69%).
Which airline is most on time from SJC to PDX?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Alaska Airlines | 95% | 0.0% | 4 min | 2.2% | 226 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 92% | 0.0% | 5 min | 2.5% | 480 |
| Southwest Airlines | 80% | 0.0% | 10 min | 4.4% | 947 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am98%120 flights
- 7am96%139 flights
- 8am95%130 flights
- 9am94%119 flights
- 10am96%23 flights
- 11am93%314 flights
- 12pm94%34 flights
- 1pm89%90 flights
- 2pm88%106 flights
- 3pm65%46 flights
- 4pm59%73 flights
- 5pm67%39 flights
- 6pm83%198 flights
- 7pm57%21 flights
- 8pm79%115 flights
- 9pm55%86 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday86%0.0% cancelled
- Tuesday91%0.0% cancelled
- Wednesday91%0.0% cancelled
- Thursday86%0.0% cancelled
- Friday79%0.0% cancelled
- Saturday86%0.0% cancelled
- Sunday82%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft69%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion4%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
SJC to PDX: common questions
- How often are SJC to PDX flights on time?
- 86% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from San Jose to Portland cancelled?
- 0.0% of scheduled flights were cancelled (0 of 1,653).
- How long are typical delays?
- Across all flights the average arrival delay was 8 min (early arrivals count as zero). Flights that were late arrived 52 min behind schedule on average, and 3.6% of flights were an hour or more late.
- How long is taxi time at SJC?
- Flights on this route spent 12 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PDX to SJC — 82% on time
More flights from San Jose
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SJC → PDX, nonstop flights by US airlines that report to the DOT. How we calculate this.