BWI (Baltimore) to PDX (Portland) flights arrive on time 78% of the time. The most reliable airline on this route is Alaska Airlines 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 August 2026.BWI → PDX
BWI (Baltimore) to PDX (Portland)
BWI → PDX on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is on time most of the time. About 78% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Alaska Airlines is significantly more reliable on this route at 89% on time vs Spirit Airlines at 72%.
Airline Comparison
Alaska Airlines leads at 89% on time; Spirit Airlines trails at 72%.
Accurate?
Good to know
Departing from BWI
80% on timeTSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at PDX
83% on timeWhen flights into PDX are late, the average delay is 61 minutes. Build buffer if you have ground plans.
If connecting at PDX: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Alaska Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of BWI? 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.