OnTimeStats

Historical on-time performance

Seattle to Orlando

2,554 miData through Dec 2025Source: US DOT · BTS

Flights on SEA–MCO arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 1,842 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.

  • Alaska Airlines
    On-time77%
    Medianon time
    p9030 min
    Cancel0.3%
    Flights1,140
  • Delta Air Lines
    On-time76%
    Medianon time
    p9030 min
    Cancel0.7%
    Flights702

Why flights run late

Delay causes

  • Airline41%
  • Weather4%
  • Air traffic (NAS)35%
  • Late aircraft19%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SEA → MCO

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 79% on time.

  • Overnights79% on time · p90 25 min · 1,997 flights
  • Mornings78% on time · p90 35 min · 2,286 flights
  • Afternoons74% on time · p90 30 min · 1,006 flights
  • Middays74% on time · p90 35 min · 235 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 83% on time.

  • Tuesdays83% on time · p90 20 min · 757 flights
  • Wednesdays81% on time · p90 25 min · 767 flights
  • Saturdays77% on time · p90 30 min · 801 flights
  • Mondays77% on time · p90 30 min · 801 flights
  • Thursdays76% on time · p90 30 min · 794 flights
  • Fridays74% on time · p90 35 min · 802 flights
  • Sundays73% on time · p90 35 min · 802 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.