Historical on-time performance
Pittsburgh to Washington
204 miData through Dec 2025Source: US DOT · BTS
Flights on PIT–DCA arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled3.7%of scheduled flights
based on 1,222 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Republic AirwaysOn-time81%Medianon timep9025 minCancel2.2%Flights730
- American AirlinesOn-time82%Medianon timep9020 minCancel0.0%Flights50
- PSA AirlinesOn-time60%Medianon timep9070 minCancel6.6%Flights442
Why flights run late
Delay causes
- Airline19%
- Weather1%
- Air traffic (NAS)34%
- Late aircraft45%
- Security1%
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 PIT → DCA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 15 min · 1,605 flights
- Middays83% on time · p90 30 min · 1,981 flights
- Afternoons76% on time · p90 40 min · 577 flights
- Overnights73% on time · p90 40 min · 195 flights · limited
- Evenings66% on time · p90 80 min · 695 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 83% on time.
- Saturdays83% on time · p90 25 min · 501 flights
- Tuesdays82% on time · p90 25 min · 772 flights
- Wednesdays82% on time · p90 30 min · 766 flights
- Mondays81% on time · p90 25 min · 771 flights
- Sundays81% on time · p90 30 min · 725 flights
- Fridays79% on time · p90 40 min · 762 flights
- Thursdays78% on time · p90 35 min · 756 flights
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