Seattle (SEA) to Orlando (MCO): On-Time Performance
Data through July 2026
When you fly SEA to MCO matters as much as anything else about the booking: the route swung from 92% on-time in February 2026 to just 60% in July 2025. Across the full period the route averages 78% on-time against a national 78%.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 5.0
- last 12 months
- Duration
- 5h 34m
- scheduled
- Distance
- 2,554 mi
Best airline from SEA to MCO
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Alaska Airlinesmost reliable | 78% | 11 min | 0.8% | 2,338 |
| Delta Air Lines | 78% | 13 min | 1.6% | 1,482 |
Monthly on-time trend
Best time to fly from SEA to MCO
Aim for departures around 9 p.m. (84% on-time); avoid 10 p.m. departures (75%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 13 min |
| Tuesdaybest | 84% | 7 min |
| Wednesday | 82% | 9 min |
| Thursday | 78% | 14 min |
| Friday | 75% | 15 min |
| Saturday | 78% | 11 min |
| Sunday | 75% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft19%
- Airline operations41%
- National airspace system36%
- Weather4%
Frequently asked questions
- How often are flights from SEA to MCO delayed?
- 22% of SEA–MCO 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 12 minutes.
- Which airline is most reliable from SEA to MCO?
- Alaska Airlines has the best on-time record on this route at 78%, based on 2,338 flights. 2 airlines flew SEA–MCO frequently enough to compare in this period.
- What is the best time of day to fly from SEA to MCO?
- Departures around 9 p.m. have the best record (84% on-time), while departures around 10 p.m. have the worst (75%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SEA to MCO?
- The scheduled SEA–MCO flight time averages 5h 34m over 2,554 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are SEA to MCO flights cancelled?
- 1.1% 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 SEA to MCO?
- July 2025 was the roughest month in this dataset, with only 60% of arrivals on time. The best was February 2026 at 92%. If your dates are flexible, that 32-point gap is worth planning around.
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Based on 3,820 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.