Route reliability record
MCO→BWI
Orlando to Baltimore
- Flights
- 4,753
- Period
- June 2025 to May 2026
- Distance
- 787 mi
- Carriers
- 3
This route sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.4%. The late ones land about an hour behind schedule. That rests on 4,753 flights, of which Frontier Airlines flew 520 at 78.2% on time.
Frontier Airlines is the most reliable of the three carriers covered here at 78.2% on time across 520 flights.
Key figures
On time
75.4%
Arrivals under 15 minutes late, of 4,640 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
2.08%
National rate is 1.80%
Best carrier
Frontier
78.2% on time across 520 flights
These figures cover 4,753 flights between June 2025 and May 2026. Beyond the headline rate, 8.0% 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 BWI
The choice of carrier is not cosmetic here. Frontier Airlines arrives on time 78.2% of the time; Spirit Airlines manages 64.4%. Sample sizes sit next to every figure, because a two-point gap across 652 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Frontier Airlines | 520 | 78.2% | 76 min | 1.73% | B |
| Southwest Airlines | 3,581 | 76.9% | 59 min | 1.98% | B |
| Spirit Airlines | 652 | 64.4% | 64 min | 2.91% | D |
The spread between Frontier and Spirit is 14 points, wide enough that it should decide the booking. On a hundred trips that is 14 more arrivals inside the on-time window.
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 36 points, against 14 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am680 flights93.6%
- 8am–11am1,009 flights85.9%
- 11am–2pm670 flights76.6%
- 2pm–5pm701 flights72.2%
- 5pm–8pm1,042 flights64.9%
- 8pm–5am651 flights57.9%
Scale runs 50% to 100%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 57.9% on time, against 93.6% 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 26 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 64.1% on time, 26 points below September, the best at 90.3%. 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, Wednesday is the strongest day at 81.2% on time and Sunday the weakest at 64.8%. 16 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 70,000 reported delay minutes.
- 33%Late-arriving aircraft
- 32%Carrier
- 28%National Airspace System
- 6%Extreme weather
- 1%Security
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 93.6% on time here.
No single cause dominates. late-arriving aircraft at 33%, carrier at 32% and national airspace system at 28% split the 70,000 reported delay minutes between them. An even spread like this usually means the operation is running close to its designed capacity with no one obvious weak point, and it is the hardest pattern for a traveller to route around.
Cancellations sit at 2.08% against a national 1.80%, which is ordinary. Diversions add another 0.29%.
Connections and stage length
What a delay here actually costs
8.0% of arrivals land an hour or more late, close to the national 8.2%. 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 are the about an hour kind, which a normal layover absorbs.
The 787 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 75.2% on time across 4,747 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 4,753 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. September runs 90.3% on time and July 64.1%, a swing of 26 points. If the dates move at all, move them out of July before you think about anything else.
Common questions
MCO to BWI questions
How often is MCO to BWI delayed?
About one flight in four arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 24.6% of the 4,753 flights in this analysis, against 22.6% nationally. Delayed flights are late by about an hour on average.
Which airline is most reliable on MCO to BWI?
Frontier Airlines leads at 78.2% on time across 520 flights. Spirit Airlines is at the other end on 64.4%, a gap of 14 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 BWI?
The 5am–8am departure window is the strongest at 93.6% on time. The 8pm–5am window is the weakest at 57.9%, 36 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 BWI?
July is the weakest month at 64.1% on time, compared with 90.3% in September. Across the year that is 26 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
- BWI to MCO — the return legseparate record
- Orlando International (MCO) delay statistics
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Frontier Airlines on-time record78.2%
- Southwest Airlines on-time record76.9%
- Spirit Airlines on-time record64.4%
- 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 BWI and BWI 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.