Historical on-time performance
Detroit to Washington
Flights on DTW–IAD arrive on time 69% of the time over the last 12 months.
based on 950 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Delta Air LinesOn-time93%Medianon timep9010 minCancel0.0%Flights30
- Republic AirwaysOn-time73%Medianon timep9035 minCancel2.6%Flights117
- SkyWest AirlinesOn-time67%Medianon timep9095 minCancel1.2%Flights803
Why flights run late
Delay causes
- Airline70%
- Weather10%
- Air traffic (NAS)16%
- Late aircraft3%
- Security1%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline8%
- Weather85%
- Air traffic (NAS)8%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 13 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 DTW → IAD
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 71% to 86% on time.
- Mornings86% on time · p90 25 min · 685 flights
- Evenings81% on time · p90 30 min · 187 flights · limited
- Middays80% on time · p90 45 min · 795 flights
- Overnights76% on time · p90 65 min · 995 flights
- Afternoons71% on time · p90 65 min · 1,102 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 81% on time.
- Tuesdays81% on time · p90 45 min · 534 flights
- Saturdays81% on time · p90 45 min · 500 flights
- Wednesdays80% on time · p90 50 min · 539 flights
- Thursdays78% on time · p90 40 min · 554 flights
- Fridays76% on time · p90 50 min · 557 flights
- Mondays74% on time · p90 75 min · 537 flights
- Sundays73% on time · p90 60 min · 543 flights
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