OnTimeStats

Historical on-time performance

Philadelphia to Bangor

473 miData through Dec 2025Source: US DOT · BTS

Flights on PHL–BGR arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights

based on 401 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • PSA Airlinesbest
    On-time85%
    Medianon time
    p9035 min
    Cancel0.9%
    Flights110
  • American Airlines
    On-time68%
    Medianon time
    p9055 min
    Cancel1.4%
    Flights291

Why flights run late

Delay causes

  • Airline29%
  • Weather1%
  • Air traffic (NAS)10%
  • Late aircraft60%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly PHL → BGR

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Afternoons are the most reliable time of day to fly this route — 89% on time.

  • Afternoons89% on time · p90 5 min · 53 flights · limited
  • Middays78% on time · p90 35 min · 863 flights
  • Overnights66% on time · p90 70 min · 483 flights
  • Evenings65% on time · p90 60 min · 105 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 65% to 82% on time.

  • Wednesdays82% on time · p90 30 min · 211 flights
  • Tuesdays82% on time · p90 30 min · 192 flights · limited
  • Thursdays77% on time · p90 40 min · 221 flights
  • Fridays73% on time · p90 60 min · 222 flights
  • Mondays73% on time · p90 45 min · 207 flights
  • Sundays67% on time · p90 70 min · 233 flights
  • Saturdays65% on time · p90 70 min · 236 flights
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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.