SEA
Access: card or statusCenturion Lounge
Mezzanine in the Central Terminal
Daily from 5 a.m. to 10 p.m.
Access rules ▾
Amex Platinum or Centurion card, same-day boarding pass on any airline.
✓ Source checked Aug 17, 2026 · upgradedpoints.com
SEA
Access: card or statusDelta Sky Club · Concourse A
Concourse A (near Gate 1)
Access rules ▾
Sky Club membership, Delta Reserve Amex, Delta One/eligible status, or Amex Platinum when flying Delta same-day.
✓ Source checked Aug 13, 2026 · upgradedpoints.com
SEA
Access: card or statusDelta Sky Club · Concourse A
Concourse A (near Gate 11)
Access rules ▾
Sky Club membership, Delta Reserve Amex, Delta One/eligible status, or Amex Platinum when flying Delta same-day.
✓ Source checked Aug 13, 2026 · upgradedpoints.com
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