Is a 55 min layover in Portland long enough?

PDX · Portland International · Portland, United States
Probably Enough
Solid cushion for any domestic-domestic connection at this small airport.
Concourses
4
Max Transit
15m
Avg. Security
12m
Primary Hub
Alaska Airlines
Domestic → Domestic
40min
Domestic → International
60min
International → Domestic
75min
International → International
75min
AD PLACEMENT — CONTEXTUAL
Almost all connections happen on foot through one central terminal, so allow time for walking rather than transit systems.
If arriving from an international flight, budget extra time for Customs and Border Protection processing before your domestic connection.
Alaska Airlines passengers benefit from PDX being a true hub, with frequent same-concourse or adjacent-concourse connections.
Security lines can back up during the morning and early evening banks, so check current wait times via the airport's website if your connection is tight.
PDX's small size means gate-to-gate walks rarely exceed 10-15 minutes, even at opposite ends of the terminal.
12a6a12p6p12a
Low risk
Moderate
High risk
Tight connections are safer outside peak hours. Morning rush (6–9a), midday (11a–2p), and evening (4–8p) are highest risk.
All concourses connect via a single central terminal core reached entirely on foot — there are no trains or shuttles between gates. Passengers arriving internationally deplane at Concourse E-ish federal inspection facilities and must clear US Customs and Border Protection, then re-enter the sterile area through security before reaching connecting gates.
Is 55 minutes enough for a layover at PDX?

Solid cushion for any domestic-domestic connection at this small airport.

AD PLACEMENT — BEFORE FOOTER