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DelayAtlas

Carrier route record

DLLAXMCO

Delta Air Lines · Los Angeles to Orlando

Flights
1,383
Period
July 2025 to June 2026
Share of route
40%
Carriers
5
BGRADE

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

Delta on LAX to MCO lands a B, about a point worse than the national rate of 77.6%. About one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 1,383 flights. The strongest carrier on the route with a full sample, United Airlines, flew 833 at 89.1% on time.

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

Key figures

On time

76.3%

Arrivals under 15 minutes late, of 1,360 completed flights

Avg delay

63 min

Across delayed arrivals only, not all flights

Cancelled

1.16%

National rate is 1.81%

Whole route

77.1%

Every carrier on LAX to MCO, 3,487 flights

These figures cover 1,383 flights between July 2025 and June 2026. Beyond the headline rate, 8.2% 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 LAX to MCO

Delta flew 1,383 of the 3,487 flights on LAX to MCO, about 40% of it. Its 76.3% on time is about level with the route as a whole at 77.1%. Ranked by on-time rate it is number three of five carriers on the route, where the range runs from United at 89.1% to Frontier at 47.1%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. United Airlines arrives on time 89.1% of the time; American Airlines manages 73.3%. Sample sizes sit next to every figure, because a two-point gap across 735 flights means less than a ten-point one.

On-time performance by carrier on LAX to MCO
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlines83389.1%61 min0.00%A+
Southwest Airlinesthin sample33077.3%32 min0.00%B+
Delta Air Lines (this page)1,38376.3%63 min1.16%B
American Airlines73573.3%76 min0.27%C+
Frontier Airlinesthin sample20647.1%103 min0.97%F+

The spread between United and American is 16 points, wide enough that it should decide the booking. On a hundred trips that is 16 more arrivals inside the on-time window.

Flight by flight

Delta flight numbers on LAX to MCO

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 25 points, against 16 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am271 flights87.6%
  • 8am–11am257 flights69.7%
  • 11am–2pm200 flights62.9%
  • 2pm–5pm363 flights77.2%
  • 5pm–8pm
  • 8pm–5am292 flights79.8%

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 62.9% on time against 87.6% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 2pm–5pm window is the busiest, with 363 flights scheduled in it.

Across the year

Delta on LAX to MCO through the year

On-time rate by calendar month74J75F56M74A78M78J72J82A94S83O80N74D
Darker means more delays. Figures are on-time percentages.September best, March worst

September is the best month on the calendar at 94.2% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. May was the busiest month here, with 124 flights.

Across the week, Tuesday is the strongest day at 81.4% on time and Sunday the weakest at 69.4%. 12 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week80.4Mon81.4Tue78.5Wed77.1Thu72.0Fri75.4Sat69.4Sun
Monday: 80.4 percent on time. Tuesday: 81.4 percent on time. Wednesday: 78.5 percent on time. Thursday: 77.1 percent on time. Friday: 72.0 percent on time. Saturday: 75.4 percent on time. Sunday: 69.4 percent on time

Delay causes

Why Delta runs late on this route

One category carries most of the weight here. Carrier accounts for 48% of the 20,000 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.

  • Carrier
    48%
  • National Airspace System
    25%
  • Late-arriving aircraft
    25%
  • Extreme weather
    1%

The largest share of delay minutes, 48%, 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 9,867 of the 20,000 delay minutes reported here. The split is drawn from 20,377 reported delay minutes.

Cancellations sit at 1.16% against a national 1.81%, which is ordinary. Diversions add another 0.51%.

Connections and stage length

What a delay here costs

8.2% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

At 2,218 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 83.8% on time across 1,383 flights, 8 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 8 points of difference.

The sample behind these figures is 1,383 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 LAX to MCO

Put together: the calendar is the biggest lever here, not the carrier or the hour. September runs 94.2% on time and March 55.9%, a swing of 38 points. If the dates move at all, move them out of March before you think about anything else. 1,360 completed flights over 12 months sit behind that.

Related

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.