PDX to SJC flight delays & on-time performance
Nonstop flights from Portland International Airport to Mineta San Jose International Airport · 569 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PDX or SJC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Portland (PDX) to San Jose (SJC) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.2% were cancelled, and 5% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (89% on time); Southwest Airlines was the least (77%).
- Departures scheduled around 6am did best (99% on time); around 8pm did worst (55%).
- Saturday was the most reliable day to fly (87% on time) and Friday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (63%).
Which airline is most on time from PDX to SJC?
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 | 89% | 0.0% | 7 min | 1.8% | 226 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 88% | 0.0% | 8 min | 3.8% | 499 |
| Southwest Airlines | 77% | 0.4% | 13 min | 5.8% | 947 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am98%60 flights
- 6am99%102 flights
- 7am95%186 flights
- 8am91%34 flights
- 9am95%77 flights
- 10am81%77 flights
- 11am88%81 flights
- 12pm83%75 flights
- 2pm87%333 flights
- 3pm65%23 flights
- 4pm88%34 flights
- 5pm75%198 flights
- 6pm67%54 flights
- 7pm62%84 flights
- 8pm55%69 flights
- 9pm69%177 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%0.0% cancelled
- Tuesday82%0.0% cancelled
- Wednesday87%0.4% cancelled
- Thursday80%0.4% cancelled
- Friday77%0.8% cancelled
- Saturday87%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 aircraft63%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion5%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)75%
- Extreme weather25%
- Air traffic control & airport congestion0%
- Security0%
PDX to SJC: common questions
- How often are PDX to SJC flights on time?
- 82% 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 Portland to San Jose cancelled?
- 0.2% of scheduled flights were cancelled (4 of 1,672).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 52 min behind schedule on average, and 4.7% of flights were an hour or more late.
- How long is taxi time at PDX?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SJC to PDX — 86% on time
More flights from Portland
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PDX → SJC, nonstop flights by US airlines that report to the DOT. How we calculate this.