IAD (Washington) to PHX (Phoenix) flights arrive on time 81% of the time. The most reliable airline on this route is United Airlines at 85%. The average delay is 65 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated August 2026.IAD → PHX
IAD (Washington) to PHX (Phoenix)
IAD → PHX on-time performance by month
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This route is on time most of the time. About 81% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
United Airlines edges out Southwest Airlines on this route — 85% vs 72% on time.
Airline Comparison
United Airlines leads at 85% on time; Southwest Airlines trails at 72%.
Accurate?
Good to know
Departing from IAD
82% on timeExpect ~21 min sitting on the taxiway after your gate pushes back. IAD has long runway queues.
TSA is currently ~6 min. Best time: 4 AM (about 5 min).
Arriving at PHX
82% on timeWhen flights into PHX are late, the average delay is 69 minutes. Build buffer if you have ground plans.
If connecting at PHX: TSA is ~9 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
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Flying out of IAD? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
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Data last updated August 2026. Source: Bureau of Transportation Statistics.