Historical on-time performance
Des Moines to Washington
Flights on DSM–DCA arrive on time 72% of the time over the last 12 months.
based on 352 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.
- PSA AirlinesOn-time75%Medianon timep9050 minCancel2.7%Flights258
- Republic AirwaysOn-time64%Medianon timep9080 minCancel7.4%Flights94
Why flights run late
Delay causes
- Airline19%
- Weather17%
- Air traffic (NAS)19%
- Late aircraft45%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline14%
- Weather64%
- Air traffic (NAS)21%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 14 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 DSM → 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 — 80% on time.
- Mornings80% on time · p90 25 min · 1,048 flights
- Middays74% on time · p90 55 min · 758 flights
- Afternoons66% on time · p90 60 min · 319 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 79% on time.
- Thursdays79% on time · p90 35 min · 302 flights
- Sundays78% on time · p90 30 min · 308 flights
- Tuesdays76% on time · p90 35 min · 306 flights
- Wednesdays76% on time · p90 40 min · 308 flights
- Mondays75% on time · p90 55 min · 306 flights
- Saturdays74% on time · p90 45 min · 290 flights
- Fridays73% on time · p90 35 min · 305 flights
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