Route reliability record
MCO→DCA
Orlando to Washington
- Flights
- 4,585
- Period
- June 2025 to May 2026
- Distance
- 759 mi
- Carriers
- 5
This route draws a C. About one flight in three arrive 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 4,585 flights, of which Delta Air Lines flew 711 at 72.0% on time.
Delta Air Lines is the most reliable of the four carriers covered here at 72.0% on time across 711 flights.
Key figures
On time
67.5%
Arrivals under 15 minutes late, of 4,474 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
2.01%
National rate is 1.80%
Best carrier
Delta
72.0% on time across 711 flights
These figures cover 4,585 flights between June 2025 and May 2026. Beyond the headline rate, 13.0% 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
Which airline is most reliable on MCO to DCA
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 72.0% of the time; JetBlue Airways manages 63.4%. Sample sizes sit next to every figure, because a two-point gap across 943 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 16 | 93.8% | 118 min | 0.00% | A+ |
| Delta Air Lines | 711 | 72.0% | 88 min | 3.80% | C− |
| American Airlines | 1,818 | 68.0% | 92 min | 2.37% | C |
| Southwest Airlines | 1,097 | 67.1% | 60 min | 1.09% | C |
| JetBlue Airways | 943 | 63.4% | 71 min | 1.06% | D |
Delta Air Lines cancels 3.8% 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.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 41 points, against 9 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am417 flights92.5%
- 8am–11am948 flights84.3%
- 11am–2pm970 flights70.4%
- 2pm–5pm859 flights52.6%
- 5pm–8pm412 flights51.8%
- 8pm–5am979 flights57.0%
Scale runs 45% to 100%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 51.8% 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.
Across the year
When delays peak on this route
This route's year swings by 23 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
July is the worst month at 54.9% on time, 23 points below May, the best at 77.4%. 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.
Across the week, Tuesday is the strongest day at 76.8% on time and Sunday the weakest at 60.6%. 16 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
One category carries most of the weight here. Late-arriving aircraft accounts for 46% of the 114,000 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.
- 46%Late-arriving aircraft
- 26%National Airspace System
- 22%Carrier
- 6%Extreme weather
- 0%Security
46% 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 114,000 reported delay minutes here, that single category outweighs weather by 7 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 practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 92.5% on time here.
Cancellations sit at 2.01% against a national 1.80%, which is ordinary. Diversions add another 0.41%.
Connections and stage length
What a delay here actually costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 13.0% of arrivals land a full hour or more behind schedule, against 8.2% 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 759 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 is a different operation and performs like one: it runs 74.4% on time across 4,586 flights, 7 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 7 points of difference.
The sample behind these figures is 4,585 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 this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. May runs 77.4% on time and July 54.9%, a swing of 23 points. If the dates move at all, move them out of July before you think about anything else.
Common questions
MCO to DCA questions
How often is MCO to DCA delayed?
About one flight in three arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 32.5% of the 4,585 flights in this analysis, against 22.6% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on MCO to DCA?
Delta Air Lines leads at 72.0% on time across 711 flights. JetBlue Airways is at the other end on 63.4%, a gap of 9 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on MCO to DCA?
The 5am–8am departure window is the strongest at 92.5% on time. The 5pm–8pm window is the weakest at 51.8%, 41 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on MCO to DCA?
July is the weakest month at 54.9% on time, compared with 77.4% in May. Across the year that is 23 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- DCA to MCO — the return legseparate record
- Orlando International (MCO) delay statistics
- Ronald Reagan Washington National (DCA) delay statistics
- Republic Airways on-time record93.8%
- Delta Air Lines on-time record72.0%
- American Airlines on-time record68.0%
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
Direction matters. MCO to DCA and DCA to MCO are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, June 2025 to May 2026. Updated monthly. How this data is collected.