Best Time to Fly MCO to SEA: On-Time Stats by Hour & Airline
Orlando International → Seattle/Tacoma International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.6% of Orlando (MCO) to Seattle (SEA) flights arrived on time (1,822 scheduled flights). That is 1.0 points below the national average of 77.6%.
Alaska Airlines was the most punctual of the 2 airlines on the route at 76.9%, while Delta Air Lines trailed at 76.2%.
April has been the best month (85% on time) and Sunday the weakest day of the week (73%).
1.0% of flights were cancelled, versus 1.8% nationally.
MCO to SEA 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 | 76.9% | 57 min | 0.7% | 1,103 |
| Delta Air Lines | 76.2% | 60 min | 1.4% | 719 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MCO to SEA
On-time arrival % by scheduled departure hour (local time), 3,667 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 79.0% | 1.2% | 729 |
| 8am–9am | 84.4% | 0.9% | 217 |
| 9am–10am | 87.3% | 0.6% | 854 |
| 10am–11am | 83.6% | 0.7% | 135 |
| 4pm–5pm | 72.9% | 0.5% | 402 |
| 5pm–6pm | 76.7% | 1.7% | 179 |
| 6pm–7pm | 67.0% | 1.5% | 990 |
| 7pm–8pm | 73.5% | 3.4% | 117 |
| 8pm–9pm | 73.8% | 4.5% | 44 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MCO to SEA
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) | 61.3% | -18.4 pts | 0.0% | 62 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.2% | -9.5 pts | 0.7% | 142 |
| Summer peak (Jun 15 - Aug 15) | 68.6% | -11.1 pts | 1.6% | 618 |
| All other days | 79.7% | — | 1.1% | 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).