PHL to PWM flight delays & on-time performance
Nonstop flights from Philadelphia International Airport to Portland International Jetport · 364 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PHL or PWM right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Philadelphia (PHL) to Portland (PWM) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3.3% were cancelled, and 10% arrived an hour or more late.
- American Airlines was the most punctual airline here (77% on time); PSA Airlines was the least (76%).
- Departures scheduled around 9am did best (92% on time); around 7pm did worst (72%).
- Tuesday was the most reliable day to fly (92% on time) and Thursday the least (67%).
- The largest source of delay minutes was late-arriving aircraft (54%).
Which airline is most on time from PHL to PWM?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 100% | 0.0% | 0 min | 0.0% | 1 |
| American Airlines | 77% | 1.2% | 18 min | 9.3% | 493 |
| PSA AirlinesRegional airline operating American Eagle flights. | 76% | 8.8% | 23 min | 12.1% | 181 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am92%38 flights
- 10am83%121 flights
- 12pm82%71 flights
- 1pm76%58 flights
- 2pm73%30 flights
- 4pm72%29 flights
- 6pm74%27 flights
- 7pm72%55 flights
- 8pm72%35 flights
- 9pm72%190 flights
- 10pm83%12 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday78%3.1% cancelled
- Tuesday92%4.4% cancelled
- Wednesday78%2.1% cancelled
- Thursday67%3.1% cancelled
- Friday79%2.0% cancelled
- Saturday76%2.1% cancelled
- Sunday70%6.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft54%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion11%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather73%
- Airline (crew, maintenance, cleaning, fueling)18%
- Air traffic control & airport congestion9%
- Security0%
PHL to PWM: common questions
- How often are PHL to PWM flights on time?
- 77% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Philadelphia to Portland cancelled?
- 3.3% of scheduled flights were cancelled (22 of 675).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 79 min behind schedule on average, and 10.0% of flights were an hour or more late.
- How long is taxi time at PHL?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PWM to PHL — 80% on time
More flights from Philadelphia
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PHL → PWM, nonstop flights by US airlines that report to the DOT. How we calculate this.