BUF (Buffalo) to IAD (Washington) flights arrive on time 88% of the time. The most reliable airline on this route is Republic Airways at 89%. The average delay is 74 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 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 88% 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 — Republic Airways leads slightly at 89% vs United Airlines at 85%.
Airline Comparison
Republic Airways leads at 89% on time; United Airlines trails at 85%.
Accurate?
Good to know
Departing from BUF
79% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. BUF has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
BUF cancels 2.7% of flights — higher than average. Have a backup plan.
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 ~5 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.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.