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Route on-time record

PWM to DCA: most on-time flights and the best time to fly

Portland (Portland International Jetport) to Washington (Ronald Reagan Washington National Airport). 1,149 nonstop flights in Jun 2025 to May 2026, 73% arrived within 15 minutes and 3.6% were cancelled. The most reliable flight number was PSA 5034 at 6:00 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

Find me the most reliable flights fromtoonreturning(optional)

PWM → DCA

Portland to Washington: 1,149 nonstop flights a year

On time (12 months)

73%

Cancelled

3.6%

avg delay 29 min

Best time to leave

Before 9 AM

88% on time vs 62% 3 to 6 PM

Most reliable airline

American

73% chance on time

Check PWM to DCA fares

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. #1 · PSA 5034 · sold as American Eagle

    6:00 AM → 7:50 AM1h 50m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    78%

    chance on time

    On time (history)
    81%
    Cancelled
    0.0%
    Avg arrival delay
    56 min
    • Arrived on time 81% of the time (43 flights, Jun 2025 to May 2026).
    • Never cancelled in 43 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 62%).

    Limited track record · 43 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  2. #2 · American 2610

    10:47 AM → 12:36 PM1h 49m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    73%

    chance on time

    On time (history)
    71%
    Cancelled
    0.0%
    Avg arrival delay
    21 min
    • Arrived on time 71% of the time (35 flights, Jun 2025 to May 2026).
    • Never cancelled in 35 scheduled flights.
    • 53% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 35 flights

    Find American 2610 fares Opens this date on Aviasales

  3. #3 · American 2355

    5:17 PM → 7:12 PM1h 55m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    66%

    chance on time

    On time (history)
    70%
    Cancelled
    0.0%
    Avg arrival delay
    21 min
    • Arrived on time 70% of the time (10 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 62% on time; Before 9 AM: 88%).
    • 86% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 10 flights

    Find American 2355 fares Opens this date on Aviasales

  4. #4 · PSA 5366 · sold as American Eagle

    11:58 AM → 1:59 PM2h 01m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    62%

    chance on time

    On time (history)
    33%
    Cancelled
    0.0%
    Avg arrival delay
    52 min
    • Arrived on time 33% of the time (9 flights, Jun 2025 to May 2026).
    • Lands inside DCA's trouble window: 63% of its 194 ground stops and delay programs started between 1 PM and 7 PM.
    • 60% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 9 flights

    Find 11:58 AM flight fares Opens this date on Aviasales

  5. #5 · PSA 5400 · sold as American Eagle

    5:02 PM → 6:59 PM1h 57m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    59%

    chance on time

    On time (history)
    62%
    Cancelled
    2.6%
    Avg arrival delay
    38 min
    • Arrived on time 62% of the time (37 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 62% on time; Before 9 AM: 88%).
    • Lands inside DCA's trouble window: 63% of its 194 ground stops and delay programs started between 1 PM and 7 PM.
    • 71% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 37 flights

    Find 5:02 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines73%

    630 flights · 76% on time as flown · 2.6% cancel

  • PSA Airlines (sold as American Eagle)66%

    387 flights · 69% on time as flown · 4.9% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM88%

    364 flights · avg delay 24 min

  • 9 AM to noon78%

    136 flights · avg delay 20 min

  • Noon to 3 PM65%

    313 flights · avg delay 28 min

  • 3 to 6 PM62%

    336 flights · avg delay 39 min

Best day: Saturday (83%). Worst: Monday (73%).

Smarter routing

Nearby airports that run more on time

  • PWM → IAD 83% chance on time

    Portland International Jetport to Washington Dulles International Airport · 701 flights a year · 23 mi from your airports · yours: 71%

    Rank flightsFares

  • PWM → BWI 80% chance on time

    Portland International Jetport to Baltimore/Washington International Thurgood Marshall Airport · 1,343 flights a year · 30 mi from your airports · yours: 71%

    Rank flightsFares

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.

J
72
F
75
M
78
A
77
M
75
J
72
J
71
A
77
S
82
O
81
N
84
D
77

What delays this route

  • Late-arriving aircraft42%
  • Airline (crew, maintenance, boarding)30%
  • Air traffic control and airport volume18%
  • Severe weather9%

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

Finding the most reliable connections from PWM to DCA…

PWM to DCA questions

What time of day is best to fly PWM to DCA?
Before 9 AM: 88% of flights arrived on time, against 62% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from PWM to DCA?
American, with a season-adjusted 73% chance of operating and arriving on time over 630 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 PWM to DCA?
July (71% on time); the best was November (84%), 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 PWM

Live status: FAA delays and ground stops