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DelayAtlas

Carrier route record

ASMCO→SFO

Alaska Airlines · Orlando to San Francisco

Flights
278
Period
September 2025 to August 2026
Share of route
20%
Carriers
2
C+GRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Alaska Airlines.

Alaska on MCO to SFO sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 278 flights, with a median arrival 4 minutes early.

The national on-time rate over the same period is 77.3%, so Alaska on MCO to SFO runs 5 points behind the country as a whole. Across a thousand flights that is about 48 extra late arrivals.

Key figures

On time

72.5%

Arrivals under 15 minutes late, of 276 completed flights

Avg delay

62 min

Across delayed arrivals only, not all flights

Cancelled

0.72%

National rate is 1.89%

Whole route

79.7%

Every carrier on MCO to SFO, 1,378 flights

These figures cover 278 flights between September 2025 and August 2026. Beyond the headline rate, 10.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

Alaska against every carrier on MCO to SFO

Alaska flew 278 of the 1,378 flights on MCO to SFO, about 20% of it. Its 72.5% on time is 7 points worse than the route as a whole, which runs 79.7%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 81.6% to Alaska at 72.5%.

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.

On-time performance by carrier on MCO to SFO
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlines1,10081.6%64 min0.27%B+
Alaska Airlines (this page)thin sample27872.5%62 min0.72%C+

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

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 28 points, against half a point between the best and worst carrier.

  • 5am–8am—
  • 8am–11am30 flights53.3%
  • 11am–2pm—
  • 2pm–5pm—
  • 5pm–8pm96 flights64.6%
  • 8pm–5am152 flights81.3%

Scale runs 45% to 85%. Rows with fewer than 30 flights show a dash.

The 8pm–5am window is the strongest at 81.3% on time. The full set of windows spans 28 points.

Across the year

Alaska on MCO to SFO through the year

  • Jul–Sep 202530 flights83.3%
  • Oct–Dec 2025110 flights70.6%
  • Jan–Mar 202696 flights78.9%
  • Apr–Jun 202642 flights54.8%

Scale runs 45% to 90%.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 72.5% on time across 278 flights.

Alaska on MCO to SFO did not run the same all year. Its best quarter was Jul–Sep 2025 at 83.3% on time and its weakest Apr–Jun 2026 at 54.8%, a swing of 29 points on roughly 70 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Across the week, Wednesday is the strongest day at 76.3% on time and Sunday the weakest at 65.0%, a spread of 11 points.

On-time rate by day of the week71.4Mon72.5Tue76.3Wed73.7Thu74.4Fri74.4Sat65.0Sun
Monday: 71.4 percent on time. Tuesday: 72.5 percent on time. Wednesday: 76.3 percent on time. Thursday: 73.7 percent on time. Friday: 74.4 percent on time. Saturday: 74.4 percent on time. Sunday: 65.0 percent on time

Arrival by arrival

How late Alaska on MCO to SFO runs when it is late

Alaska on MCO to SFO often beats the schedule: 104 of 276 completed flights, 38%, arrived 15 minutes or more early. The 76 late arrivals split 25 under half an hour, 21 between 30 and 60 minutes, and 30 an hour or more.

  • 15+ min early104 flights37.7%
  • Within 15 min96 flights34.8%
  • 15–29 min late25 flights9.1%
  • 30–59 min late21 flights7.6%
  • 1–2 hours late19 flights6.9%
  • 2+ hours late11 flights4.0%

Scale runs 0% to 100%.

Share of 276 completed flights by arrival against schedule.

25 of 88 late departures made up the time and arrived on time, 28% of them. 13 flights left on time and still arrived late.

The worst days

Worst days for Alaska on MCO to SFO

The latest arrival of the period was on 15 March 2026, 3 hours 41 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On four of the five worst days the largest share was filed as a late-arriving aircraft.

The latest arrivals of Alaska on MCO to SFO in the period
DateArrived late byLargest filed cause
15 March 20263 hours 41 minutesNational Airspace System
27 October 20253 hours 24 minutesLate-arriving aircraft
2 January 20263 hours 11 minutesLate-arriving aircraft
8 March 20263 hours 2 minutesLate-arriving aircraft
4 January 20262 hours 55 minutesLate-arriving aircraft

Delay causes

Why Alaska runs late on this route

Late-arriving aircraft accounts for 60% of the 4,727 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    60%
  • National Airspace System
    30%
  • Carrier
    7%
  • Extreme weather
    2%
  • Security
    0%

60% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,727 reported delay minutes here, that single category outweighs weather by 28 to one. The split is drawn from 4,727 reported delay minutes.

Cancellations are rare at 0.72%, 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

10.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

At 2,446 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 83.6% on time across 278 flights, 11 points above 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 11 points of difference.

One caution: this is a thin sample. 278 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking Alaska on MCO to SFO

Put together: treat all of this as provisional. 278 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 72.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 276 completed flights over 12 months sit behind that.

Related

Where to go next

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.