SEA · Seattle, WA · Major Hub

Seattle-Tacoma International Airport Guide

Terminals, minimum connection times, ground transport, parking, lounges, and layover advice for Seattle-Tacoma International Airport (SEA), every figure cited to the airport's own data.

Quick answer

  • Terminals: 1 terminal, airside-connected
  • Minimum connection time: 45 min domestic, 1 hr 15 min international to domestic
  • Arrive: 2 hr before domestic, 3 hr before international
  • To Seattle: about 40 min one-way
  • Free WiFi: Yes · Showers: Yes

Terminals & connections

Seattle-Tacoma International Airport has 1 terminal. All are airside-connected; you can transfer between them without re-clearing security. All concourses and satellites are airside-connected; the underground train (SATS) reaches N and S satellites.

Main Terminal (Concourses A, B, C, D, N, S)

12 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines, American Airlines, United Airlines, JetBlue, and more

Single terminal with multiple concourses; Concourse N and S served by underground train (SATS).

Minimum connection times

Domestic to domestic
45 min
Domestic to international
1 hr
International to domestic
1 hr 15 min
International to international
1 hr 15 min
Transfer system
SATS underground train to N and S satellites
Airside connected
Yes

Layover helper

Interactive tool

Enter your layover details and we will tell you whether you have a tight connection, a comfortable connection, or enough time to leave SEA.

Security & TSA

Typical TSA wait at SEA is 30 minutes at peak and 8 minutes off-peak. Arrive at least 2 hr before a domestic flight and 3 hr before international.

TSA PreCheck
Available
CLEAR
Available
Global Entry
Available

SEA checkpoints 1-5; Alaska PreCheck line is fastest.

Lounges

2 notable lounges at SEA, including airline-branded clubs and third-party options accessible via Priority Pass or day-pass. Check your credit card benefits (Amex Platinum, Chase Sapphire Reserve, Capital One Venture X) before paying a day-pass fee.

Alaska Lounge

C Concourse

Alaska / OneWorld

Access: Alaska Lounge membership, Alaska elite, OneWorld Sapphire

Amenities: Showers, Bar, Snacks

The Club SEA

Concourse A

Priority Pass

Access: Priority Pass, day pass

Amenities: Showers, Bar

Amenities

6 of 7 core amenities available at SEA: showers, free WiFi, nursing rooms, chapel, pharmacy, pet relief. Free WiFi quality is rated good. Dining options span 1 terminal.

Showers

Available

Alaska Lounges, The Club SEA, Centurion Lounge

Sleep pods

Not available

WiFi

Free (good)

Nursing rooms

Available

Multiple locations

Chapel

Available

Central Terminal

Pet relief areas

Available

Pet relief areas

Dining highlights

Central Terminal: Beecher's Cheese, Anthony's Fish Bar

Ground transport to Seattle

SEA is about 40 min from downtown Seattle by the fastest transit option.

Option Cost Time
Sound Transit Link Light Rail
Train
Direct Light Rail to Westlake downtown.
 $3-$4 35-45 min
Uber/Lyft
Rideshare
 $35-$65 25-50 min

Parking

SEA parking ranges from $18/day economy to $42/day short-term.

Short-term
$42/day
Long-term
$33/day
Economy
$18/day
Valet
Not available

Can I leave SEA during a layover?

With a 3-hour layover, stay inside SEA. With 6+ hours, you have time to see part of Seattle. Round-trip to the city center is about 1 hr 20 min plus re-screening on return.

6+ hour layovers can take the Link Light Rail to Pike Place Market (40 min each way, $3). Budget 3 hours round trip including re-screening.

Overnight layover hotels

  • Seattle Airport Marriott
    5-min shuttle
    $$

Frequently asked questions

How early should I arrive at SEA?

Arrive at least 120 minutes before a domestic flight from SEA, and 180 minutes before an international flight. Peak-time TSA waits at SEA can hit 30+ minutes, so add buffer.

What is the minimum connection time at SEA?

SEA requires at least 45 minutes for domestic-to-domestic connections and 75 minutes for international-to-domestic connections. All concourses are airside-connected, so you do not need to re-clear security when changing concourses.

How long does it take to get between terminals at SEA?

Budget 10 min for same-terminal transfers and 20 min for different-terminal transfers at SEA via SATS underground train to N and S satellites. All concourses and satellites are airside-connected; the underground train (SATS) reaches N and S satellites.

Can I leave SEA during a 6-hour layover?

With 3 hours you should stay inside SEA. A 6-hour layover is enough to leave the airport briefly. Round-trip to the city center is about 80 minutes plus re-screening. 6+ hour layovers can take the Link Light Rail to Pike Place Market (40 min each way, $3). Budget 3 hours round trip including re-screening.

Does SEA have showers?

Yes, SEA has showers at Alaska Lounges, The Club SEA, Centurion Lounge.

Does SEA have sleep pods?

SEA does not have dedicated sleep pods. Check premium airline lounges for quiet rooms.

Is WiFi free at SEA?

Yes. SEA offers free WiFi throughout the airport.

What is the cheapest way to get from SEA to Seattle?

The cheapest option is typically Sound Transit Link Light Rail at $3-$4, taking 35-45 minutes. Direct Light Rail to Westlake downtown.

Is there TSA PreCheck and CLEAR at SEA?

SEA supports TSA PreCheck and has CLEAR lanes. Global Entry kiosks are available for returning international travelers. Typical peak-hour wait is 30 minutes. SEA checkpoints 1-5; Alaska PreCheck line is fastest.

Where should I eat at SEA during a layover?

Notable dining at SEA includes Beecher's Cheese (Central Terminal), Anthony's Fish Bar (Central Terminal).

How much does parking cost at SEA?

SEA parking rates: $42/day short-term, $33/day long-term, $18/day economy. Book online in advance for significant discounts vs. drive-up rates.

Is there a hotel at SEA for overnight layovers?

The closest option is Seattle Airport Marriott (5-min shuttle, $$). Budget time for the shuttle or rideshare in your overnight plan.

Are there pet relief areas at SEA?

Yes. Pet relief areas.

Is there a chapel or prayer room at SEA?

Yes. Central Terminal.

Compare SEA to other airports

See how SEA ranks against the other 69 airports in our dataset.

Best for layovers SEA is workable for 6h+ layovers With sleep pods See which airports offer capsule hotels and nap rooms Shortest MCT SEA dom-to-dom: 45 min · intl-to-dom: 1 hr 15 min

Airlines operating at SEA

Look up baggage policies for any airline flying out of SEA.

Pack for your Seattle trip

Destination packing lists for cities served by SEA.

Compare other airports

Sources & verification

Verified 2026-04-14. Airport operations, parking rates, and amenities change; always confirm with Seattle-Tacoma International Airport before flying.