PIT (Pittsburgh) to IAD (Washington) flights arrive on time 89% of the time. The most reliable airline on this route is United Airlines at 92%. The average delay is 62 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated May 2026.PIT → IAD
PIT (Pittsburgh) to IAD (Washington)
PIT → IAD on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
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This route is usually on time. About 89% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
Accurate?
Airlines are roughly equal on this route — United Airlines leads slightly at 92% vs Republic Airways at 89%.
Airline Comparison
United Airlines leads at 92% on time; Republic Airways trails at 89%.
Accurate?
Good to know
Departing from PIT
82% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. PIT has long runway queues.
TSA is currently ~13 min. Best time: 4 AM (about 5 min).
Arriving at IAD
83% on timeWhen flights into IAD are late, the average delay is 74 minutes. Build buffer if you have ground plans.
If connecting at IAD: TSA is ~8 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated May 2026. Source: Bureau of Transportation Statistics.