Route on-time record
DCA to PDX: most on-time flights and the best time to fly
Washington (Ronald Reagan Washington National Airport) to Portland (Portland International Airport). 364 nonstop flights in Jun 2025 to May 2026, 68% arrived within 15 minutes and 0.8% were cancelled. The most reliable flight number was Alaska 9 at 5:28 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
DCA → PDX
Washington to Portland: 364 nonstop flights a year
On time (12 months)
68%
Cancelled
0.8%
avg delay 24 min
Best time to leave
No clear winner
Most reliable airline
Alaska
67% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Alaska 9
5:28 PM → 8:17 PM5h 57m nonstop
Local times, typical schedule. Last flown 2026-05-31.
67%
chance on time
- On time (history)
- 68%
- Cancelled
- 0.8%
- Avg arrival delay
- 24 min
- Arrived on time 68% of the time (360 flights, Jun 2025 to May 2026).
- Departs inside DCA's trouble window: 63% of its 194 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 360 flights
Find Alaska 9 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Alaska Airlines67%
364 flights · 68% on time as flown · 0.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 3 to 6 PM68%
364 flights · avg delay 24 min
Best day: Saturday (80%). Worst: Wednesday (71%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft46%
- Air traffic control and airport volume26%
- Airline (crew, maintenance, boarding)20%
- Severe weather8%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
DCA to PDX questions
- Which airline is most on time from DCA to PDX?
- Alaska, with a season-adjusted 67% chance of operating and arriving on time over 364 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on DCA to PDX?
- July (62% on time); the best was October (85%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from DCA
- PDX to DCA (return)
- DCA to BOS 71%
- DCA to ORD 74%
- DCA to ATL 78%
- DCA to LGA 67%
- DCA to MCO 74%
- DCA to BNA 77%
- DCA to MIA 75%
- DCA to DFW 77%
- DCA to IAH 81%
- DCA to DTW 76%
- DCA to CLT 78%
- DCA to MSP 78%
Most on-time flights from DCA on every route →
Live status: FAA delays and ground stops