Historical on-time performance
Pittsburgh to Washington
205 miData through May 2026Source: US DOT · BTS
Flights on PIT–DCA arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled3.1%of scheduled flights
based on 1,016 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time75%Medianon timep9045 minCancel2.3%Flights766
- PSA AirlinesOn-time54%Median5 minp9070 minCancel5.2%Flights250
Why flights run late
Delay causes
- Airline16%
- Weather1%
- Air traffic (NAS)44%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline13%
- Weather52%
- Air traffic (NAS)35%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 31 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 PIT → 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 — 84% on time.
- Mornings84% on time · p90 20 min · 1,607 flights
- Middays79% on time · p90 40 min · 1,899 flights
- Afternoons72% on time · p90 50 min · 425 flights
- Evenings65% on time · p90 85 min · 781 flights
- Overnights32% on time · p90 90 min · 115 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.
- Saturdays82% on time · p90 30 min · 493 flights
- Tuesdays78% on time · p90 30 min · 732 flights
- Mondays77% on time · p90 40 min · 729 flights
- Sundays77% on time · p90 40 min · 690 flights
- Wednesdays76% on time · p90 45 min · 727 flights
- Fridays75% on time · p90 45 min · 730 flights
- Thursdays74% on time · p90 50 min · 726 flights
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