OnTimeStats

Historical on-time performance

Oklahoma City to Seattle

1,519 miData through Dec 2025Source: US DOT · BTS

Flights on OKC–SEA arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 281 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time79%
    Medianon time
    p9025 min
    Cancel0.4%
    Flights281

Why flights run late

Delay causes

  • Airline22%
  • Weather7%
  • Air traffic (NAS)28%
  • Late aircraft42%
  • Security1%

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 OKC → SEA

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 74% to 78% on time.

  • Afternoons78% on time · p90 25 min · 968 flights
  • Evenings74% on time · p90 35 min · 53 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 83% on time.

  • Saturdays83% on time · p90 20 min · 126 flights · limited
  • Wednesdays82% on time · p90 20 min · 157 flights · limited
  • Mondays79% on time · p90 25 min · 162 flights · limited
  • Tuesdays78% on time · p90 25 min · 129 flights · limited
  • Fridays77% on time · p90 30 min · 161 flights · limited
  • Sundays75% on time · p90 25 min · 162 flights · limited
  • Thursdays74% on time · p90 30 min · 160 flights · limited
Advertisement

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.