Best Time to Fly SEA to MCO: On-Time Stats by Hour & Airline
Seattle/Tacoma International → Orlando International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.8% of Seattle (SEA) to Orlando (MCO) flights arrived on time (1,820 scheduled flights). That is 4.2 points above the national average of 77.6%.
Among 2 airlines, Alaska Airlines led with 83.2% on time and Delta Air Lines was last with 79.8%.
Over 24 months, Tuesday was the most reliable day (85% on time) and July the worst month (66%).
The cancellation rate was 0.7% (US average 1.8%).
SEA to MCO on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Alaska Airlines | 83.2% | 44 min | 0.3% | 1,101 |
| Delta Air Lines | 79.8% | 59 min | 1.4% | 719 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SEA to MCO
On-time arrival % by scheduled departure hour (local time), 3,665 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 78.3% | 0.9% | 230 |
| 8am–9am | 78.5% | 1.4% | 1,072 |
| 9am–10am | 78.3% | 0.4% | 236 |
| 10am–11am | 80.0% | 1.7% | 240 |
| 11am–12pm | Limited data | 10 | |
| 3pm–4pm | 76.8% | 0.8% | 522 |
| 9pm–10pm | 84.2% | 0.0% | 242 |
| 10pm–11pm | 75.0% | 0.0% | 156 |
| 11pm–12am | 80.9% | 0.9% | 957 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SEA to MCO
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 78.3% | -3.7 pts | 0.0% | 60 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.2% | -6.9 pts | 0.7% | 142 |
| Summer peak (Jun 15 - Aug 15) | 67.1% | -15.0 pts | 1.1% | 618 |
| All other days | 82.1% | — | 0.9% | 2,845 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).