Best Time to Fly DCA to PWM: On-Time Stats by Hour & Airline
Ronald Reagan Washington National → Portland International Jetport
Data through July 2026 · Last updated October 18, 2026
1,159 flights were scheduled from Washington (DCA) to Portland (PWM) in the last 12 months, and 68.7% of those that flew arrived on time, 8.9 points below the US average of 77.6%.
Among 3 airlines, Republic Airways led with 72.9% on time and PSA Airlines was last with 65.3%.
Over 24 months, Saturday was the most reliable day (77% on time) and February the worst month (57%).
The cancellation rate was 3.5% (US average 1.8%).
DCA to PWM 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 |
|---|---|---|---|---|
| Republic Airways | 72.9% | 71 min | 10.5% | 95 |
| American Airlines | 70.2% | 66 min | 1.4% | 656 |
| PSA Airlines | 65.3% | 65 min | 5.2% | 408 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DCA to PWM
On-time arrival % by scheduled departure hour (local time), 2,479 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 3 | |
| 7am–8am | Limited data | 8 | |
| 8am–9am | 74.3% | 4.5% | 111 |
| 9am–10am | 82.5% | 1.2% | 162 |
| 10am–11am | 79.5% | 2.2% | 456 |
| 11am–12pm | 75.7% | 1.1% | 187 |
| 12pm–1pm | 68.5% | 4.7% | 150 |
| 1pm–2pm | Limited data | 3 | |
| 2pm–3pm | 72.1% | 3.9% | 622 |
| 3pm–4pm | 67.5% | 0.0% | 83 |
| 4pm–5pm | Limited data | 7 | |
| 5pm–6pm | Limited data | 6 | |
| 7pm–8pm | Limited data | 5 | |
| 8pm–9pm | 74.1% | 3.6% | 56 |
| 9pm–10pm | Limited data | 1 | |
| 10pm–11pm | 60.1% | 8.4% | 619 |
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 PWM
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) | 79.1% | +6.8 pts | 0.0% | 43 |
| Christmas & New Year (Dec 20 - Jan 3) | 66.3% | -6.0 pts | 1.1% | 93 |
| Summer peak (Jun 15 - Aug 15) | 66.6% | -5.7 pts | 9.8% | 378 |
| All other days | 72.3% | — | 3.4% | 1,965 |
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).