Amenities, from 14 metrics
Concourse C at Seattle-Tacoma International (SEA) has 1 lounge. Served by Alaska Airlines.
- Lounges
- 1 open
- Best rated
- Alaska Lounge (C)
- Airlines
- 1
- Details checked
Lounges
Details checked as recently as .
Best-rated lounge in Concourse C
Alaska Lounge (C)4.3
Amenity ratings
Security speed, bag delivery, the walk to your gate, and the rest of terminal life, each scored 1–5.
What a 5 means for each metric
- Security speed
- through the checkpoint in minutes, even at peak
- Check-in & bag drop
- short lines, plenty of kiosks, quick bag drop
- Baggage delivery
- bags on the belt by the time you reach it
- Walk to gates
- short walks, moving walkways where it's long
- Signage & wayfinding
- clear signs, easy to find your gate
- Cleanliness
- spotless floors, restrooms, and seating
- Food & drink
- real restaurants and good coffee, not just kiosks
- Shopping
- useful shops, not only duty-free perfume
- Wi-Fi
- free, fast, no captive-portal hassle
- Gate seating
- comfortable seats with power at every gate
- Power outlets
- outlets and USB at most seats
- Quiet
- no blaring announcements or gate-area chaos
- Restrooms
- clean, plentiful, never a queue
- Accessibility
- step-free routes, help easy to find
Airlines served
Quick answers
How many lounges are in Concourse C at Seattle-Tacoma International?
Lounge Frog lists 1 lounge in Concourse C at Seattle-Tacoma International (SEA): Alaska Lounge (C).
Which airlines fly from Concourse C at Seattle-Tacoma International?
Alaska Airlines flies from Concourse C at Seattle-Tacoma International (SEA).
What is the best lounge in Concourse C?
The highest-rated lounge in Concourse C at Seattle-Tacoma International (SEA) on Lounge Frog is Alaska Lounge (C), at 4.3 out of 5.
Is Concourse C a good terminal?
Lounge Frog rates Concourse C at SEA 4.1 out of 5 overall, the average of 14 editorial metrics such as security speed and bag delivery.
Traveller reviews
What people who've been say. One review each; you can update yours.
News
News about SEA Concourse C
- Ranking
The 7 best Alaska Lounges, ranked: 2026
Seattle's North Satellite lounge is the only Alaska Lounge with showers, and it wins easily. Every open Alaska Lounge ranked, with who gets in and which Seattle room to pick.
- Ranking
The 10 best lounges at Seattle-Tacoma International in 2026
Sea-Tac's ten best lounges ranked by overall rating, from Delta's Concourse A flagship to the Priority Pass rooms in the satellites.
NewsSeattle to Tahiti from $999: Alaska and Hawaiian add the only nonstops to Papeete and Osaka
Hawaiian A330s will fly Seattle to Osaka from May 14, 2027, and to Papeete from June 11, with lie-flat Suites and free Starlink Wi-Fi for Atmos members. The launch fares end Oct. 26.
NewsAlaska and Hawaiian refresh international Suites dining with new chef menus and wines
New dishes from Brady Ishiwata Williams and Dell Valdez, a refreshed wine list, and up to five pre-order entrées for Hawaiian business class from October 21.
NewsHawaiian starts building its new Honolulu lounge as Alaska's Seattle lounge takes shape
Work has begun on Hawaiian's 200-seat Honolulu lounge, now due in the first half of 2028, and on Alaska's 41,000-square-foot Seattle complex for late 2027. The Aurora Lounge will take more than suite guests.
NewsAlaska's new Main Cabin menu adds Ellenos yogurt, an Evergreens salad and two breakfast sandwiches
Alaska Airlines has refreshed its domestic Main Cabin pre-order menu with Seattle brands Ellenos and Evergreens, plus a tofu bowl and a green curry, for flights from Sept. 2. Here is what is new, how to order, and how the food rates in Alaska's Seattle lounges.
NewsAlaska will fly Seattle to Athens and Paris from May 2027: where to wait at each end
Alaska Airlines adds seasonal 787-9 nonstops from Seattle to Athens on May 12, 2027, and to Paris-Charles de Gaulle on May 25. Alaska's Sea-Tac lounges are the easy part. The return trip, where oneworld lounges are thin or close early, takes more planning.
NewsAlaska grows Paine Field seats 50%, adding San Jose and more Los Angeles and Portland flights
Alaska Airlines will add twice-daily Everett–San Jose flights from April 14, 2027, and grow Los Angeles and Portland to two daily flights. Lounge Frog lists no lounges at Paine Field; Sea-Tac has 12, including three Alaska Lounges.