BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
MIA→DCA

Miami, FL (MIA) to Washington, DC (DCA) flight delay odds

72.8% of 3,962 official scheduled MIA-to-DCA flights arrived on time; 16.9% arrived at least 30 minutes late and 2.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
72.8%arrived on time
16.9%30+ min late
2.1%cancelled
3,962scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.1%all scheduled flights
120+ minutes late3.7%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+10.2 mincompleted flights

Which departure time was most reliable for MIA to DCA?

Among qualifying MIA-to-DCA departure window results, Early morning had the highest on-time rate: 88.8% of 708 flights. Evening was lowest at 62.8% across 1,057 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning70888.8%6.4%0.8%
Late morning95278.0%14.2%0.9%
Afternoon86766.6%22.6%1.8%
Evening1,05762.8%22.0%3.6%
Night37871.7%15.6%4.2%

Which weekday was most reliable for MIA to DCA?

Among qualifying MIA-to-DCA weekday results, Tuesday had the highest on-time rate: 77.7% of 587 flights. Sunday was lowest at 67.6% across 578 flights.

DayFlightsOn time30+ minCancelled
Monday57671.0%16.5%4.0%
Tuesday58777.7%11.9%2.2%
Wednesday57174.6%15.8%1.4%
Thursday56374.2%16.9%0.5%
Friday57270.5%19.9%0.5%
Saturday51574.0%17.3%1.7%
Sunday57867.6%19.9%4.5%

Which airline was most reliable for MIA to DCA?

Among qualifying MIA-to-DCA airline results, Delta Air Lines had the highest on-time rate: 74.2% of 364 flights. Republic Airways was lowest at 66.7% across 48 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines3,54972.7%16.6%2.3%
Delta Air Lines36474.2%18.1%1.1%
Republic Airways4866.7%29.2%0.0%
Envoy Air1100.0%0.0%0.0%

Which month was most reliable for MIA to DCA?

Among qualifying MIA-to-DCA month results, April 2026 had the highest on-time rate: 80.5% of 329 flights. July 2025 was lowest at 53.0% across 334 flights.

MonthFlightsOn time30+ minCancelled
July 202533453.0%27.8%7.8%
August 202533672.9%19.6%0.6%
September 202532679.1%14.7%0.6%
October 202533778.6%12.8%0.3%
November 202531073.2%14.2%1.6%
December 202534476.2%15.1%0.3%
January 202634167.4%16.4%8.5%
February 202630374.3%15.8%2.0%
March 202633766.8%20.8%1.8%
April 202632980.5%14.0%0.0%
May 202633979.6%13.0%0.6%
June 202632672.1%17.8%1.5%

What drove MIA to DCA delay minutes?

Late aircraft was the largest recorded MIA-to-DCA delay category, accounting for 42.9% of 68,404 BTS-attributed delay minutes during July 2025–June 2026.

Airline32.5%
Late aircraft42.9%
National airspace19.1%
Weather5.0%
Security0.5%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.