OnTimeStats

Historical on-time performance

Phoenix to Spokane

1,020 miData through May 2026Source: US DOT · BTS

Flights on PHX–GEG arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights

based on 1,136 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • American Airlines
    On-time77%
    Medianon time
    p9060 min
    Cancel0.0%
    Flights543
  • Southwest Airlines
    On-time77%
    Medianon time
    p9030 min
    Cancel0.3%
    Flights593

Why flights run late

Delay causes

  • Airline39%
  • Weather1%
  • Air traffic (NAS)7%
  • Late aircraft52%
  • Security1%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather100%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 2 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly PHX → GEG

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 91% on time.

  • Mornings91% on time · p90 10 min · 433 flights
  • Afternoons79% on time · p90 30 min · 328 flights
  • Middays78% on time · p90 40 min · 1,630 flights
  • Overnights72% on time · p90 55 min · 967 flights
  • Evenings69% on time · p90 50 min · 157 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.

  • Wednesdays82% on time · p90 25 min · 465 flights
  • Tuesdays81% on time · p90 35 min · 452 flights
  • Saturdays79% on time · p90 35 min · 513 flights
  • Sundays78% on time · p90 50 min · 575 flights
  • Thursdays78% on time · p90 40 min · 524 flights
  • Mondays74% on time · p90 45 min · 484 flights
  • Fridays73% on time · p90 45 min · 502 flights

Keep exploring

Related pages

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.