PDX to PHL flight delays & on-time performance
Nonstop flights from Portland International Airport to Philadelphia International Airport · 2,406 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PDX or PHL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Portland (PDX) to Philadelphia (PHL) arrived on time 86% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.9% were cancelled, and 4% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (91% on time); American Airlines was the least (84%).
- Departures scheduled around 7am did best (91% on time); around 12pm did worst (82%).
- Sunday was the most reliable day to fly (100% on time) and Tuesday the least (67%).
- The largest source of delay minutes was late-arriving aircraft (39%).
Which airline is most on time from PDX to PHL?
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 |
|---|---|---|---|---|---|
| Alaska Airlines | 91% | 0.0% | 5 min | 1.3% | 80 |
| American Airlines | 84% | 2.7% | 11 min | 4.5% | 182 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am91%80 flights
- 12pm82%68 flights
- 10pm82%71 flights
- 11pm90%43 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday92%2.7% cancelled
- Tuesday67%5.7% cancelled
- Wednesday89%0.0% cancelled
- Thursday90%0.0% cancelled
- Friday88%2.4% cancelled
- Saturday76%2.9% cancelled
- Sunday100%0.0% 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 aircraft39%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)25%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
PDX to PHL: common questions
- How often are PDX to PHL flights on time?
- 86% 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 Portland to Philadelphia cancelled?
- 1.9% of scheduled flights were cancelled (5 of 262).
- How long are typical delays?
- Across all flights the average arrival delay was 9 min (early arrivals count as zero). Flights that were late arrived 64 min behind schedule on average, and 3.5% of flights were an hour or more late.
- How long is taxi time at PDX?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PHL to PDX — 71% on time
More flights from Portland
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PDX → PHL, nonstop flights by US airlines that report to the DOT. How we calculate this.