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Route Reliability

Philadelphia → Portland

PHL–PWM · 364 miles · Philadelphia International Airport to Portland International Jetport

76
Usually Fine
WanderNerd Reliability Score
79%
Arrive within 15 minutes
9 min
Average arrival delay
2.4%
Cancelled
1,310
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 79% of the time across 1,310 flights. No comparison to make.

What the data says

Morning-you made the right choice.

PHL–PWM flights departing between 6–9 AM arrived on time 93% of the time, versus 65% between 6–9 PM.

Skip Thursday if you can.

PHL–PWM flights arrived on time 86% of the time on Tuesdays. On Thursdays: 73%.

Ticking up lately.

PHL–PWM flights arrived on time 85% of the time over the last three months in the data, compared with 79% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon78%(183 flights)
  • Tue86%(179 flights)
  • Wed83%(180 flights)
  • Thu73%(185 flights)
  • Fri80%(181 flights)
  • Sat77%(183 flights)
  • Sun73%(184 flights)
On-time by departure window
  • 6–9 AM93%(54 flights)
  • 9 AM–12 PM84%(305 flights)
  • 12–3 PM81%(274 flights)
  • 3–6 PM79%(187 flights)
  • 6–9 PM65%(142 flights)
  • 9 PM–12 AM75%(313 flights)
On-time trend by month
87%
May

Jun 64% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%119
July 202570%123
August 202574%121
September 202585%102
October 202571%112
November 202588%115
December 202574%90
January 202682%82
February 202681%79
March 202676%88
April 202691%114
May 202687%130

Keep nerding

Based on 1,310 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.