Carrier route record
ASSEA→MCO
Alaska Airlines · Seattle to Orlando
- Flights
- 1,099
- Period
- September 2025 to August 2026
- Share of route
- 60%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on SEA to MCO lands a B+, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 40 minutes on average. That rests on 1,099 flights, with a median arrival 10 minutes early.
Set against the rest of the country, Alaska's SEA to MCO record is 6 points better than the US average of 77.3%. That gap is worth roughly 63 fewer late arrivals for every thousand flights.
Key figures
On time
83.6%
Arrivals under 15 minutes late, of 1,086 completed flights
Avg delay
41 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
Whole route
82.1%
Every carrier on SEA to MCO, 1,818 flights
These figures cover 1,099 flights between September 2025 and August 2026. The median arrival is 10 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Alaska against every carrier on SEA to MCO
Alaska flew 1,099 of the 1,818 flights on SEA to MCO, most of the route. Its 83.6% on time is 2 points better than the route as a whole, which runs 82.1%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Alaska at 83.6% to Delta at 79.7%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Alaska Airlines (this page) | 1,099 | 83.6% | 41 min | 0.27% | B+ |
| Delta Air Lines | 719 | 79.7% | 58 min | 1.39% | B |
Flight by flight
Alaska flight numbers on SEA to MCO
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Departure window
When Alaska runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 12 points, against half a point between the best and worst carrier.
- 5am–8am70 flights76.1%
- 8am–11am462 flights81.0%
- 11am–2pm—
- 2pm–5pm214 flights88.5%
- 5pm–8pm—
- 8pm–5am353 flights85.5%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 2pm–5pm slot at 88.5% on time, ahead of 5am–8am at 76.1%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8am–11am window is the busiest, with 462 flights scheduled in it.
Across the year
Alaska on SEA to MCO through the year
August is the worst month at 75.0% on time, 21 points below February, the best at 96.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 103 flights.
Across the week, Wednesday is the strongest day at 90.2% on time and Friday the weakest at 76.6%, a spread of 14 points.
Arrival by arrival
How late Alaska on SEA to MCO runs when it is late
Alaska on SEA to MCO often beats the schedule: 412 of 1,086 completed flights, 38%, arrived 15 minutes or more early. The 178 late arrivals split 85 under half an hour, 67 between 30 and 60 minutes, and 26 an hour or more.
- 15+ min early412 flights37.9%
- Within 15 min496 flights45.7%
- 15–29 min late85 flights7.8%
- 30–59 min late67 flights6.2%
- 1–2 hours late19 flights1.7%
- 2+ hours late7 flights0.6%
Scale runs 0% to 100%.
Share of 1,086 completed flights by arrival against schedule.
A late pushback is often recovered here: of 204 departures that left 15 minutes late or more, 104 still arrived on time. In the other direction, 78 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at MCO.
The worst days
Worst days for Alaska on SEA to MCO
The latest arrival of the period was on 13 March 2026, 4 hours 52 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across March, October, June and July, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 March 2026 | 4 hours 52 minutes | Extreme weather |
| 30 October 2025 | 4 hours 9 minutes | Extreme weather |
| 21 June 2026 | 3 hours 2 minutes | Carrier |
| 15 March 2026 | 2 hours 52 minutes | National Airspace System |
| 16 July 2026 | 2 hours 18 minutes | Late-arriving aircraft |
Delay causes
Why Alaska runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 7,281 reported delay minutes.
- 41%National Airspace System
- 30%Carrier
- 21%Late-arriving aircraft
- 9%Extreme weather
41% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,969 minutes out of 7,281, against a national NAS share of 21%. The split is drawn from 7,281 reported delay minutes.
Cancellations are rare at 0.27%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 2.4% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 2,554 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg is a different operation and performs like one: it runs 78.1% on time across 1,101 flights, 6 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 6 points of difference.
The sample behind these figures is 1,099 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking Alaska on SEA to MCO
Put together: the calendar is the biggest lever here, not the carrier or the hour. February runs 96.0% on time and August 75.0%, a swing of 21 points. If the dates move at all, move them out of August before you think about anything else. 1,086 completed flights over 12 months sit behind that.
Related
Where to go next
- SEA to MCO, every carrier
- Alaska on MCO to SEA, the return leg
- Delta Air Lines on SEA to MCO79.7%
- Alaska Airlines network-wide record
- Seattle-Tacoma International (SEA) delay statistics
- Orlando International (MCO) delay statistics
- The best time of day to fly, according to 7.05 million flight records
- Worst months to fly in the US, ranked by the data
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.