PHX (Phoenix) to IAD (Washington) flights arrive on time 86% of the time. The most reliable airline on this route is United Airlines at 87%. The average delay is 61 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.PHX → IAD
PHX (Phoenix) to IAD (Washington)
PHX → 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 87% vs Southwest Airlines at 85%.
Airline Comparison
United Airlines leads at 87% on time; Southwest Airlines trails at 85%.
Accurate?
Good to know
Departing from PHX
82% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. PHX has long runway queues.
TSA is currently ~11 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 ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.