Carrier route record

DLMCO→DTW

Delta Air Lines · Orlando to Detroit

Flights: 2,170
Period: July 2025 to June 2026
Share of route: 59%
Carriers: 4

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Delta Air Lines.

Delta on MCO to DTW sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 2,170 flights. The strongest carrier on the route with a full sample, Frontier Airlines, flew 428 at 82.7% on time.

The US average over the same twelve months is 77.6%, so there is little to separate Delta on MCO to DTW from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

74.2%

Arrivals under 15 minutes late, of 2,147 completed flights

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

0.97%

National rate is 1.81%

Whole route

73.3%

Every carrier on MCO to DTW, 3,676 flights

These figures cover 2,170 flights between July 2025 and June 2026. Beyond the headline rate, 10.2% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

Delta against every carrier on MCO to DTW

Delta flew 2,170 of the 3,676 flights on MCO to DTW, most of the route. Its 74.2% on time is about level with the route as a whole at 73.3%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Frontier at 82.7% to Southwest at 55.1%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. Frontier Airlines arrives on time 82.7% of the time; Spirit Airlines manages 69.4%. Sample sizes sit next to every figure, because a two-point gap across 950 flights means less than a ten-point one.

On-time performance by carrier on MCO to DTW
Airline	Flights	On time	Avg delay	Cancelled	Grade
Frontier Airlines	428	82.7%	56 min	0.93%	B+
Delta Air Lines (this page)	2,170	74.2%	77 min	0.97%	C+
Spirit Airlines	950	69.4%	66 min	1.79%	C
Southwest Airlinesthin sample	128	55.1%	53 min	0.78%	D+

The spread between Frontier and Spirit is 13 points, wide enough that it should decide the booking. On a hundred trips that is 13 more arrivals inside the on-time window.

Flight by flight

Delta flight numbers on MCO to DTW

Departure window

When Delta runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 37 points, against 13 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am364 flights92.5%
8am–11am363 flights90.6%
11am–2pm364 flights74.0%
2pm–5pm485 flights68.3%
5pm–8pm325 flights59.5%
8pm–5am269 flights55.9%

Scale runs 45% to 100%. Rows with fewer than 30 flights show a dash.

The 8pm–5am window is where this operation falls apart: 55.9% on time, against 92.5% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 485 flights scheduled in it.

Across the year

Delta on MCO to DTW through the year

Darker means more delays. Figures are on-time percentages.September best, December worst

December is the weak month at 56.2% on time, against 88.7% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 210 flights.

Across the week, Wednesday is the strongest day at 81.0% on time and Sunday the weakest at 67.1%. 14 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Delta runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 43% of the 43,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
43%
Carrier
35%
National Airspace System
17%
Extreme weather
5%
Security
0%

43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 43,000 reported delay minutes here, that single category outweighs weather by 8 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 42,595 reported delay minutes.

The largest share of delay minutes, 35%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 15,000 of the 43,000 delay minutes reported here.

Cancellations sit at 0.97% against a national 1.81%, which is ordinary. Diversions add another 0.09%.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.2% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 957 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg runs 74.6% on time across 2,170 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

The sample behind these figures is 2,170 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 Delta on MCO to DTW

Put together: the calendar is the biggest lever here, not the carrier or the hour. September runs 88.7% on time and December 56.2%, a swing of 33 points. If the dates move at all, move them out of December before you think about anything else. 2,147 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures