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Route Reliability

Washington → Portland

DCA–PWM · 482 miles · Ronald Reagan Washington National Airport to Portland International Jetport

58
A Little Dicey
WanderNerd Reliability Score
69%
Arrive within 15 minutes
15 min
Average arrival delay
4.0%
Cancelled
1,148
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 69% of the time across 1,148 flights. No comparison to make.

What the data says

The late departure is the smart one here.

DCA–PWM flights departing between 6–9 PM arrived on time 90% of the time, versus 60% between 9 PM–12 AM.

Skip Thursday if you can.

DCA–PWM flights arrived on time 79% of the time on Saturdays. On Thursdays: 64%.

Keep a backup plan handy.

This route was cancelled 4.0% of the time. Typical for U.S. flights is around 1–2%.

Flights on this route

The breakdown

On-time by weekday
  • Mon65%(159 flights)
  • Tue76%(160 flights)
  • Wed71%(163 flights)
  • Thu64%(158 flights)
  • Fri66%(160 flights)
  • Sat79%(137 flights)
  • Sun65%(162 flights)
On-time by departure window
  • 6–9 AM74%(96 flights)
  • 9 AM–12 PM75%(329 flights)
  • 12–3 PM70%(309 flights)
  • 3–6 PM69%(54 flights)
  • 6–9 PM90%(20 flights)
  • 9 PM–12 AM60%(291 flights)
On-time trend by month
66%
May

Jun 68% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%83
July 202567%72
August 202575%114
September 202573%116
October 202568%119
November 202586%86
December 202569%88
January 202667%86
February 202656%77
March 202668%81
April 202662%85
May 202666%92

Same trip, other airports

Keep nerding

Based on 1,148 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.