Washington (DCA) to Miami (MIA): On-Time Performance
Data through July 2026
The calendar drives reliability on DCA–MIA. November 2024 flights landed on schedule 92% of the time, but August 2024 dropped to 60% — a gap of 32 points. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 65%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 2.2%
- Flights/day
- 11
- last 12 months
- Duration
- 2h 50m
- scheduled
- Distance
- 919 mi
Best airline from DCA to MIA
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| American Airlinesmost reliable | 78% | 19 min | 2.3% | 7,461 |
| Delta Air Lines | 71% | 25 min | 1.2% | 759 |
| Republic Airways | 59% | 33 min | 0.0% | 88 |
Monthly on-time trend
Best time to fly from DCA to MIA
Aim for departures around 5 a.m. (93% on-time); avoid 7 p.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 21 min |
| Tuesdaybest | 82% | 18 min |
| Wednesday | 77% | 17 min |
| Thursday | 77% | 21 min |
| Friday | 75% | 21 min |
| Saturday | 79% | 17 min |
| Sunday | 72% | 25 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations25%
- National airspace system21%
- Weather5%
Frequently asked questions
- How often are flights from DCA to MIA delayed?
- 23% of DCA–MIA 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 20 minutes.
- Which airline is most reliable from DCA to MIA?
- American Airlines has the best on-time record on this route at 78%, based on 7,461 flights. 3 airlines flew DCA–MIA frequently enough to compare in this period.
- What is the best time of day to fly from DCA to MIA?
- Departures around 5 a.m. have the best record (93% on-time), while departures around 7 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 DCA to MIA?
- The scheduled DCA–MIA flight time averages 2h 50m over 919 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are DCA to MIA flights cancelled?
- 2.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from DCA to MIA?
- August 2024 was the roughest month in this dataset, with only 60% of arrivals on time. The best was November 2024 at 92%. If your dates are flexible, that 32-point gap is worth planning around.
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Based on 8,310 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.