BUF (Buffalo) to IAD (Washington) flights arrive on time 86% of the time. The most reliable airline on this route is United Airlines at 85%. The average delay is 75 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.BUF → IAD
BUF (Buffalo) to IAD (Washington)
BUF → IAD on-time performance by month
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This route is usually on time. About 86% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Airlines are roughly equal on this route — United Airlines leads slightly at 85% vs Republic Airways at 85%.
Airline Comparison
United Airlines leads at 85% on time; Republic Airways trails at 85%.
Accurate?
Good to know
Departing from BUF
77% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. BUF has long runway queues.
TSA is currently ~30 min. Best time: 4 AM (about 5 min).
BUF cancels 2.1% of flights — higher than average. Have a backup plan.
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 United Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of BUF? 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 August 2026. Source: Bureau of Transportation Statistics.