OnTimeStats

Historical on-time performance

Seattle to Medford

352 miData through Dec 2025Source: US DOT · BTS

Flights on SEA–MFR arrive on time 89% of the time over the last 12 months.

On-time rate89%arrived within 15 min
p90 delay10 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights

based on 1,083 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time89%
    Medianon time
    p9010 min
    Cancel1.8%
    Flights1,083

Why flights run late

Delay causes

  • Airline41%
  • Weather44%
  • Air traffic (NAS)13%
  • Late aircraft2%
  • Security1%

Most delay minutes here are attributed to Weather.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SEA → MFR

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 — 92% on time.

  • Afternoons92% on time · p90 10 min · 906 flights
  • Mornings87% on time · p90 15 min · 880 flights
  • Overnights87% on time · p90 15 min · 1,026 flights
  • Middays84% on time · p90 20 min · 344 flights
  • Evenings83% on time · p90 20 min · 80 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 86% to 92% on time.

  • Tuesdays92% on time · p90 10 min · 482 flights
  • Thursdays90% on time · p90 10 min · 479 flights
  • Mondays87% on time · p90 20 min · 479 flights
  • Fridays87% on time · p90 15 min · 477 flights
  • Wednesdays87% on time · p90 15 min · 485 flights
  • Saturdays86% on time · p90 15 min · 370 flights
  • Sundays86% on time · p90 20 min · 464 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.