Historical on-time performance
Miami to Washington
Flights on MIA–DCA arrive on time 73% of the time over the last 12 months.
based on 3,852 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Delta Air LinesOn-time74%Medianon timep9065 minCancel1.0%Flights307
- American AirlinesOn-time72%Medianon timep9055 minCancel2.5%Flights3,545
Why flights run late
Delay causes
- Airline32%
- Weather5%
- Air traffic (NAS)19%
- Late aircraft44%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline4%
- Weather89%
- Air traffic (NAS)7%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 90 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MIA → DCA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 20 min · 2,864 flights
- Middays77% on time · p90 45 min · 2,998 flights
- Overnights69% on time · p90 60 min · 2,061 flights
- Afternoons64% on time · p90 80 min · 1,497 flights
- Evenings60% on time · p90 70 min · 2,140 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 78% on time.
- Tuesdays78% on time · p90 40 min · 1,678 flights
- Saturdays76% on time · p90 50 min · 1,485 flights
- Wednesdays74% on time · p90 50 min · 1,672 flights
- Mondays72% on time · p90 55 min · 1,673 flights
- Fridays71% on time · p90 55 min · 1,691 flights
- Thursdays70% on time · p90 60 min · 1,670 flights
- Sundays68% on time · p90 60 min · 1,691 flights
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