Washington (IAD) to Orlando (MCO): On-Time Performance
Data through July 2026
When you fly IAD to MCO matters as much as anything else about the booking: the route swung from 93% on-time in October 2024 to just 62% in July 2026. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (84% vs 74%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 6.0
- last 12 months
- Duration
- 2h 26m
- scheduled
- Distance
- 758 mi
Best airline from IAD to MCO
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 80% | 15 min | 0.9% | 3,885 |
| Frontier Airlines | 69% | 28 min | 2.2% | 504 |
Monthly on-time trend
Best time to fly from IAD to MCO
Aim for departures around 9 a.m. (88% on-time); avoid 9 p.m. departures (58%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 19 min |
| Tuesday | 83% | 11 min |
| Wednesdaybest | 83% | 13 min |
| Thursday | 78% | 19 min |
| Friday | 77% | 15 min |
| Saturday | 80% | 13 min |
| Sunday | 71% | 26 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft33%
- Airline operations26%
- National airspace system37%
- Weather5%
Frequently asked questions
- How often are flights from IAD to MCO delayed?
- 22% of IAD–MCO flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 17 minutes.
- Which airline is most reliable from IAD to MCO?
- United Airlines has the best on-time record on this route at 80%, based on 3,885 flights. 2 airlines flew IAD–MCO frequently enough to compare in this period.
- What is the best time of day to fly from IAD to MCO?
- Departures around 9 a.m. have the best record (88% on-time), while departures around 9 p.m. have the worst (58%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IAD to MCO?
- The scheduled IAD–MCO flight time averages 2h 26m over 758 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are IAD to MCO flights cancelled?
- 1.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from IAD to MCO?
- July 2026 was the roughest month in this dataset, with only 62% of arrivals on time. The best was October 2024 at 93%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 4,389 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.