Historical on-time performance
Wilmington to Washington
319 miData through May 2026Source: US DOT · BTS
Flights on ILM–DCA arrive on time 61% of the time over the last 12 months.
On-time rate61%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled7.1%of scheduled flights
based on 800 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- PSA AirlinesOn-time61%Medianon timep9085 minCancel7.1%Flights800
Why flights run late
Delay causes
- Airline5%
- Weather11%
- Air traffic (NAS)27%
- Late aircraft57%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline9%
- Weather75%
- Air traffic (NAS)12%
- Security4%
Most cancellations here are attributed to Weather. Shares are among 57 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 ILM → DCA
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 55% to 85% on time.
- Mornings85% on time · p90 20 min · 228 flights
- Middays83% on time · p90 25 min · 1,068 flights
- Afternoons59% on time · p90 115 min · 293 flights
- Evenings55% on time · p90 95 min · 853 flights
Best day of week
Saturdays are the most reliable day to fly this route — 82% on time.
- Saturdays82% on time · p90 20 min · 325 flights
- Tuesdays72% on time · p90 65 min · 351 flights
- Thursdays69% on time · p90 65 min · 354 flights
- Mondays69% on time · p90 85 min · 354 flights
- Wednesdays68% on time · p90 65 min · 349 flights
- Sundays68% on time · p90 70 min · 357 flights
- Fridays68% on time · p90 65 min · 357 flights
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