Orlando (MCO) to Seattle (SEA): On-Time Performance
Data through July 2026
Orlando (MCO) to Seattle (SEA) effectively runs on two schedules. In September 2025, 89% of arrivals were on time; in August 2025 that fell to 64% — a 25-point seasonal swing. Across the full period the route averages 76% on-time against a national 78%. Morning departures also hold up better than evening ones (83% vs 68%), which matters most in the rough months.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 5.0
- last 12 months
- Duration
- 6h 23m
- scheduled
- Distance
- 2,554 mi
Best airline from MCO to SEA
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 77% | 19 min | 1.6% | 1,482 |
| Alaska Airlines | 76% | 15 min | 1.1% | 2,340 |
Monthly on-time trend
Best time to fly from MCO to SEA
Aim for departures around 9 a.m. (87% on-time); avoid 6 p.m. departures (65%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 18 min |
| Tuesdaybest | 81% | 13 min |
| Wednesday | 81% | 12 min |
| Thursday | 78% | 15 min |
| Friday | 74% | 20 min |
| Saturday | 74% | 17 min |
| Sunday | 73% | 21 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft34%
- Airline operations35%
- National airspace system21%
- Weather10%
- Security1%
Frequently asked questions
- How often are flights from MCO to SEA delayed?
- 24% of MCO–SEA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 17 minutes.
- Which airline is most reliable from MCO to SEA?
- Delta Air Lines has the best on-time record on this route at 77%, based on 1,482 flights. 2 airlines flew MCO–SEA frequently enough to compare in this period.
- What is the best time of day to fly from MCO to SEA?
- Departures around 9 a.m. have the best record (87% on-time), while departures around 6 p.m. have the worst (65%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MCO to SEA?
- The scheduled MCO–SEA flight time averages 6h 23m over 2,554 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are MCO to SEA flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from MCO to SEA?
- August 2025 was the roughest month in this dataset, with only 64% of arrivals on time. The best was September 2025 at 89%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 3,822 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.