Orlando (MCO) to Washington (IAD): On-Time Performance
Data through May 2026
Orlando (MCO) to Washington (IAD) effectively runs on two schedules. In October 2024, 93% of arrivals were on time; in August 2024 that fell to 66% — a 27-point seasonal swing. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 69%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 6.0
- last 12 months
- Duration
- 2h 16m
- scheduled
- Distance
- 758 mi
Best airline from MCO to IAD
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 81% | 17 min | 0.9% | 3,719 |
| Frontier Airlines | 80% | 16 min | 2.0% | 444 |
Monthly on-time trend
Best time to fly from MCO to IAD
Aim for departures around 5 a.m. (99% on-time); avoid 6 p.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 17 min |
| Tuesdaybest | 88% | 10 min |
| Wednesday | 83% | 12 min |
| Thursday | 81% | 16 min |
| Friday | 79% | 15 min |
| Saturday | 81% | 17 min |
| Sunday | 72% | 28 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft47%
- Airline operations26%
- National airspace system21%
- Weather6%
Frequently asked questions
- How often are flights from MCO to IAD delayed?
- 20% of MCO–IAD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 17 minutes.
- Which airline is most reliable from MCO to IAD?
- United Airlines has the best on-time record on this route at 81%, based on 3,719 flights. 2 airlines flew MCO–IAD frequently enough to compare in this period.
- What is the best time of day to fly from MCO to IAD?
- Departures around 5 a.m. have the best record (99% on-time), while departures around 6 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MCO to IAD?
- The scheduled MCO–IAD flight time averages 2h 16m over 758 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are MCO to IAD flights cancelled?
- 1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from MCO to IAD?
- August 2024 was the roughest month in this dataset, with only 66% of arrivals on time. The best was October 2024 at 93%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 4,163 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.