Historical on-time performance
Washington to Wilmington
319 miData through Dec 2025Source: US DOT · BTS
Flights on DCA–ILM arrive on time 66% of the time over the last 12 months.
On-time rate66%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled6.7%of scheduled flights
based on 863 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- PSA AirlinesOn-time66%Medianon timep9060 minCancel6.7%Flights863
Why flights run late
Delay causes
- Airline20%
- Weather7%
- Air traffic (NAS)15%
- Late aircraft59%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DCA → ILM
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 50% to 84% on time.
- Mornings84% on time · p90 20 min · 1,068 flights
- Middays80% on time · p90 30 min · 301 flights
- Afternoons68% on time · p90 75 min · 322 flights
- Evenings66% on time · p90 70 min · 660 flights
- Overnights50% on time · p90 100 min · 66 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 79% on time.
- Tuesdays79% on time · p90 40 min · 348 flights
- Saturdays79% on time · p90 30 min · 318 flights
- Mondays75% on time · p90 45 min · 355 flights
- Fridays75% on time · p90 45 min · 349 flights
- Thursdays75% on time · p90 35 min · 346 flights
- Wednesdays74% on time · p90 50 min · 348 flights
- Sundays73% on time · p90 55 min · 353 flights
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