OnTimeStats

Airport on-time performance

PWM

Portland

Data through Dec 2025Source: US DOT · BTS
On-time rate76%flights departing here that arrived on time
Median delayon timetypical departure delay
p90 delay40 min1 in 10 departures is worsetail risk
Cancelled2.3%of scheduled departures
Left the gate on time82%departures that pushed back within 15 min of schedule (DepDel15)

based on 10,750 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

As a connection hub

Arriving here (inbound performance)

These figures reflect inbound flights arriving at this airport — relevant for connections and layovers.

76%arrived on time here
(within 15 min, inbound flights)
  • On time76%
  • 15–59 min late14%
  • 1–2 hr late5%
  • 2 hr+ late3%
  • Cancelled or diverted2%

Arrival outcomes for inbound flights. Last segment = cancelled or diverted.

Bad day: 1 in 10 flights arrives more than 45 min late.

By airline

Carriers departing here (last 12 months)

Delay = arrival delay (ArrDel15-based)

  • Southwest Airlinesbest
    On-time80%
    Medianon time
    p9025 min
    Cancel0.8%
    Flights1,588
  • Delta Air Lines
    On-time79%
    Medianon time
    p9040 min
    Cancel0.9%
    Flights1,058
  • Republic Airways
    On-time79%
    Medianon time
    p9040 min
    Cancel2.8%
    Flights2,945
  • JetBlue Airways
    On-time75%
    Medianon time
    p9060 min
    Cancel4.1%
    Flights390
  • American Airlines
    On-time75%
    Medianon time
    p9045 min
    Cancel1.4%
    Flights1,699
  • United Airlines
    On-time74%
    Medianon time
    p9045 min
    Cancel1.9%
    Flights775
  • PSA Airlines
    On-time69%
    Medianon time
    p9055 min
    Cancel6.6%
    Flights713
  • SkyWest Airlines
    On-time68%
    Medianon time
    p9050 min
    Cancel1.6%
    Flights311

Over time

Departure on-time trend

By season

On-time rate by month

Where flights go

Busiest routes

PWM → JFK→PWM → BWI→PWM → EWR→PWM → ATL→PWM → LGA→PWM → ORD→PWM → DTW→PWM → PHL→PWM → IAD→PWM → DCA→
Advertisement

Will you make a connection at PWM? →

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.