Route Reliability
San Jose → Portland
SJC–PDX · 569 miles · San José Mineta International Airport to Portland International Airport
- 87%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 0.4%
- Cancelled
- 2,553
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Alaska Airlines92%1,554 flights
- 2.Southwest Airlines80%999 flights
What the data says
Morning-you made the right choice.
SJC–PDX flights departing between 6–9 AM arrived on time 96% of the time, versus 65% between 9 PM–12 AM.
Friday is doing you no favors.
SJC–PDX flights arrived on time 93% of the time on Wednesdays. On Fridays: 81%.
Alaska Airlines runs this route best.
Alaska Airlines arrived on time 92% of the time on this route; Southwest Airlines managed 80%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon88%(401 flights)
- Tue90%(350 flights)
- Wed93%(343 flights)
- Thu86%(396 flights)
- Fri81%(393 flights)
- Sat91%(267 flights)
- Sun83%(391 flights)
- 6–9 AM96%(598 flights)
- 9 AM–12 PM93%(797 flights)
- 12–3 PM91%(305 flights)
- 3–6 PM69%(189 flights)
- 6–9 PM78%(550 flights)
- 9 PM–12 AM65%(102 flights)
Jun 85% → May 85% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 85% | 218 |
| July 2025 | 80% | 222 |
| August 2025 | 88% | 252 |
| September 2025 | 88% | 242 |
| October 2025 | 85% | 238 |
| November 2025 | 89% | 206 |
| December 2025 | 87% | 236 |
| January 2026 | 88% | 182 |
| February 2026 | 90% | 168 |
| March 2026 | 91% | 182 |
| April 2026 | 94% | 192 |
| May 2026 | 85% | 203 |
Same trip, other airports
Keep nerding
Based on 2,553 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.