Best Time to Fly DCA to PDX: On-Time Stats by Hour & Airline
Ronald Reagan Washington National → Portland International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 71.6% of Washington (DCA) to Portland (PDX) flights arrived on time (363 scheduled flights). That is 6.0 points below the national average of 77.6%.
Alaska Airlines was the only reporting airline with regular flights on this route.
April has been the best month (87% on time) and Thursday the weakest day of the week (69%).
0.6% of flights were cancelled, versus 1.8% nationally.
DCA to PDX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Alaska Airlines | 71.6% | 63 min | 0.6% | 363 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DCA to PDX
On-time arrival % by scheduled departure hour (local time), 725 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5pm–6pm | 70.1% | 0.7% | 464 |
| 6pm–7pm | 79.6% | 0.4% | 261 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DCA to PDX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 66.7% | -9.8 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 63.3% | -13.1 pts | 0.8% | 123 |
| All other days | 76.4% | — | 0.5% | 560 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).