PIT (Pittsburgh) to IAD (Washington) flights arrive on time 89% of the time. The most reliable airline on this route is Republic Airways at 91%. The average delay is 61 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated October 2026.PIT → IAD
PIT (Pittsburgh) to IAD (Washington)
PIT → IAD on-time performance by month
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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 — Republic Airways leads slightly at 91% vs United Airlines at 88%.
Airline Comparison
Republic Airways leads at 91% on time; United Airlines trails at 88%.
Accurate?
Good to know
Departing from PIT
81% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. PIT has long runway queues.
TSA is currently ~30 min. Best time: 4 AM (about 5 min).
Arriving at IAD
82% on timeWhen flights into IAD are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at IAD: TSA is ~12 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Republic Airways owes you — refund rights, action plan, complaint email. Free.
Flying out of PIT? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated October 2026. Source: Bureau of Transportation Statistics.