Historical on-time performance
Washington to Nantucket
Flights on DCA–ACK arrive on time 76% of the time over the last 12 months.
based on 224 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.
- Republic AirwaysOn-time83%Medianon timep9020 minCancel2.3%Flights132
- JetBlue AirwaysOn-time67%Medianon timep9040 minCancel4.3%Flights92
Why flights run late
Delay causes
- Airline16%
- Weather3%
- Air traffic (NAS)28%
- Late aircraft53%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather71%
- Air traffic (NAS)29%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 7 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 DCA → ACK
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 81% on time.
- Middays81% on time · p90 25 min · 207 flights
- Afternoons70% on time · p90 45 min · 572 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 62% to 79% on time.
- Wednesdays79% on time · p90 30 min · 106 flights · limited
- Saturdays78% on time · p90 30 min · 154 flights · limited
- Tuesdays76% on time · p90 30 min · 111 flights · limited
- Thursdays75% on time · p90 35 min · 118 flights · limited
- Mondays75% on time · p90 30 min · 122 flights · limited
- Fridays67% on time · p90 45 min · 121 flights · limited
- Sundays62% on time · p90 55 min · 125 flights · limited
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