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11 lounges at Seattle-Tacoma International Airport across 6 terminals. 2 take Priority Pass. Here is how to get into each one, when it's open and whether it's worth it.
Enter your flight for a door-to-door plan: when to leave, security, the lounge you can use and your gate. No account needed.
Strong once you are inside, but waitlists are common. It is not Priority Pass. Budget 12–15 minutes plus queue if you still need to reach the South Satellite.
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Add a photoA genuine premium room with showers and a terrace, but only for listed premium-cabin passengers. Official hours 08:00–21:30 daily — ignore older weekday-split listings.
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Add a photoThe C-gate Alaska room closes at 19:00. Do not plan an evening departure around it. No showers here.
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Add a photoThe convenient Alaska room if you used Checkpoint 4. Open until 23:00, unlike the C location. No showers.
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Add a photoThe best current Alaska Lounge at SEA for space and airfield views. Still no showers — those are promised in the late-2027 C-concourse global lounge, not here.
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Add a photoThe oneworld room for the London bank. Hours follow BA’s Seattle operation, not a full airport day. Not Priority Pass.
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