Carrier route record

AAMCO→BOS

American Airlines · Orlando to Boston

Flights: 284
Period: September 2025 to August 2026
Share of route: 6%
Carriers: 6

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

American on MCO to BOS draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 284 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 1,257 at 77.0% on time.

Delta Air Lines is the most reliable of the three carriers covered here at 77.0% on time across 1,257 flights.

On time

66.8%

Arrivals under 15 minutes late, of 274 completed flights

Avg delay

80 min

Across delayed arrivals only, not all flights

Cancelled

3.17%

National rate is 1.89%

Whole route

71.1%

Every carrier on MCO to BOS, 4,614 flights

These figures cover 284 flights between September 2025 and August 2026. Beyond the headline rate, 11.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Carrier by carrier

American against every carrier on MCO to BOS

American flew 284 of the 4,614 flights on MCO to BOS, about 6% of it. Its 66.8% on time is 4 points worse than the route as a whole, which runs 71.1%. Ranked by on-time rate it is last of six carriers on the route, where the range runs from Southwest at 100.0% to American at 66.8%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 77.0% of the time; JetBlue Airways manages 67.4%. Sample sizes sit next to every figure, because a two-point gap across 2,527 flights means less than a ten-point one.

On-time performance by carrier on MCO to BOS
Airline	Flights	On time	Avg delay	Cancelled	Grade
Southwest Airlinesthin sample	3	100.0%	—	0.00%	A+
Frontier Airlinesthin sample	151	90.7%	63 min	0.00%	A+
Delta Air Lines	1,257	77.0%	72 min	2.23%	B
Spirit Airlines	392	70.1%	54 min	4.59%	C−
JetBlue Airways	2,527	67.4%	80 min	3.72%	C−
American Airlines (this page)thin sample	284	66.8%	80 min	3.17%	C−

Spirit Airlines cancels 4.6% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

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Departure window

When American runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 284 flights.

There are not enough flights in each departure window to split American's MCO to BOS record by time of day without the percentages moving on noise. The headline rate of 66.8% is the reliable figure here.

Across the year

American on MCO to BOS through the year

Oct–Dec 202514 flights—
Jan–Mar 2026100 flights66.7%
Apr–Jun 202699 flights67.3%
Jul–Sep 202671 flights66.7%

Scale runs 60% to 75%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 66.8% on time across 284 flights.

Quarter by quarter American on MCO to BOS held fairly steady: 66.7% in Jan–Mar 2026, 67.3% in Apr–Jun 2026 and 66.7% in Jul–Sep 2026. A spread of half a point is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Across the week, Wednesday is the strongest day at 83.3% on time and Friday the weakest at 53.8%, a spread of 30 points.

Arrival by arrival

How late American on MCO to BOS runs when it is late

American on MCO to BOS often beats the schedule: 79 of 274 completed flights, 29%, arrived 15 minutes or more early. The 91 late arrivals split 31 under half an hour, 28 between 30 and 60 minutes, and 32 an hour or more.

15+ min early79 flights28.8%
Within 15 min104 flights38.0%
15–29 min late31 flights11.3%
30–59 min late28 flights10.2%
1–2 hours late18 flights6.6%
2+ hours late14 flights5.1%

Scale runs 0% to 100%.

Share of 274 completed flights by arrival against schedule.

11 of 73 late departures made up the time and arrived on time, 15% of them. In the other direction, 29 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 BOS.

The worst days

Worst days for American on MCO to BOS

The latest arrival of the period was on 27 December 2025, 10 hours 14 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in July 2026.

The latest arrivals of American on MCO to BOS in the period
Date	Arrived late by	Largest filed cause
27 December 2025	10 hours 14 minutes	Carrier
24 January 2026	8 hours 48 minutes	Late-arriving aircraft
2 July 2026	8 hours 6 minutes	Late-arriving aircraft
18 July 2026	7 hours 9 minutes	National Airspace System
26 July 2026	5 hours 4 minutes	Late-arriving aircraft

Delay causes

Why American runs late on this route

Late-arriving aircraft accounts for 48% of the 7,293 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
48%
National Airspace System
30%
Carrier
17%
Extreme weather
6%
Security
0%

48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,293 reported delay minutes here, that single category outweighs weather by 9 to one. The split is drawn from 7,293 reported delay minutes.

Cancellations run at 3.17%, against 1.89% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and stage length

What a delay here costs

11.7% 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.

The 1,121 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.

The return leg is a different operation and performs like one: it runs 80.7% on time across 284 flights, 14 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 14 points of difference.

One caution: this is a thin sample. 284 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 American on MCO to BOS

Put together: the delay figures matter less here than the 3.17% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 274 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures