IAH (Houston) to PDX (Portland) flights arrive on time 79% of the time. The most reliable airline on this route is United Airlines at 80%. The average delay is 66 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated October 2026.IAH → PDX
IAH (Houston) to PDX (Portland)
IAH → PDX on-time performance by month
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This route is on time most of the time. About 79% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Airlines are roughly equal on this route — United Airlines leads slightly at 80% vs Alaska Airlines at 79%.
Airline Comparison
United Airlines leads at 80% on time; Alaska Airlines trails at 79%.
Accurate?
Good to know
Departing from IAH
79% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. IAH has long runway queues.
TSA is currently ~24 min. Best time: 4 AM (about 5 min).
Arriving at PDX
83% on timeWhen flights into PDX are late, the average delay is 62 minutes. Build buffer if you have ground plans.
If connecting at PDX: TSA is ~24 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 IAH? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.