How Many Terminals Does SEA Have? Complete Terminal Guide

Seattle-Tacoma International Airport (SEA) has 5 terminal areas. Each terminal has its own airlines, gates, TSA checkpoints, restaurants, and shops. Here's a complete breakdown of every terminal at SEA.

All Terminals at SEA

Concourse A

• Airlines: Alaska Airlines
• Gates: A1–A14
• TSA Checkpoint: Checkpoint 1 (North) and Checkpoint 2 (Central) — TSA PreCheck available
• Baggage Claim: Main Terminal Baggage Claim, Carousel 1–16
• Dining: Beecher's Handmade Cheese, Skillet Counter, Sub Pop Records & Café

Concourse B

• Airlines: Alaska Airlines, Delta Air Lines, Hawaiian Airlines
• Gates: B1–B15
• TSA Checkpoint: Via Checkpoints 1 or 2
• Baggage Claim: Main Terminal Baggage Claim
• Dining: Ivar's Seafood Bar, Bambuza, Starbucks

Concourses C & D

• Airlines: American Airlines, United Airlines, JetBlue, Spirit Airlines, Frontier Airlines
• Gates: C1–C20, D1–D12
• TSA Checkpoint: Checkpoint 3 (Central) and Checkpoint 5 (South) — TSA PreCheck available
• Baggage Claim: Main Terminal Baggage Claim
• Dining: Floret by Café Flora, Pallino Pastaria, Starbucks

North Satellite (N Gates)

• Airlines: Delta Air Lines (International & select domestic)
• Gates: N1–N20
• TSA Checkpoint: Via Checkpoints 1 or 2, then underground train to North Satellite
• Baggage Claim: Main Terminal Baggage Claim
• Dining: Anthony's at the Pier, Lucky Louie Fish Shack

South Satellite (S Gates)

• Airlines: Alaska Airlines (additional gates), International carriers
• Gates: S1–S16
• TSA Checkpoint: Via Checkpoint 5, then underground train to South Satellite
• Baggage Claim: Main Terminal Baggage Claim
• Dining: Dungeness Crab Bisque Bar, Vino Volo

How to Find Your Terminal at SEA

The fastest way to find your terminal is to use our Terminal Finder tool — select SEA and your airline, and you'll instantly see your terminal, gates, and TSA checkpoint. You can also check your airline's app or boarding pass, or visit the official SEA website for terminal maps.

Getting Between Terminals

Large airports like SEA typically have people movers, shuttle buses, or underground trains connecting terminals. Check signage after security for inter-terminal connections. Always allow extra time if you need to change terminals during a connection. See our connecting flights guide for minimum connection times.

For the complete SEA terminal guide with maps, dining, parking, and more, see our full SEA airport guide.

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