Airport Comparison
IAD DullesvsSEA Seattle
Lounges at Washington Dulles International Airport (IAD) and Seattle–Tacoma International Airport (SEA) compared side by side — lounge count, access programs, walk-in prices, and terminal coverage. All figures from Loungely's verified lounge data.
| IADDulles | SEASeattle | |
|---|---|---|
| Verified lounges | 8 | 8 |
| Program-accessible | 8 | 8 |
| Access programs | Oneworld Emerald / Sapphire, Priority Pass, Star Alliance Gold, United Club Membership, United Polaris (Business Class) | Alaska Lounge Membership, American Express Business Platinum, American Express Centurion, American Express Platinum, Delta Medallion Elite, Oneworld Emerald / Sapphire, Priority Pass, Star Alliance Gold, United Club Membership |
| Paid walk-in lounges | — | 6 |
| Walk-in price range | — | $50–$60 |
| Terminals covered | 3 | 6 |
All IAD lounges
Every verified lounge at Washington Dulles International Airport — access rules, prices, hours →
All SEA lounges
Every verified lounge at Seattle–Tacoma International Airport — access rules, prices, hours →
IAD vs SEA lounges — frequently asked
Does IAD or SEA have more lounges?
Washington Dulles International Airport (IAD) and Seattle–Tacoma International Airport (SEA) both have 8 verified lounges. Compare the access programs and walk-in prices below to decide which suits your ticket.
Which lounge-access programs work at IAD vs SEA?
IAD: Oneworld Emerald / Sapphire, Priority Pass, Star Alliance Gold, United Club Membership, United Polaris (Business Class). SEA: Alaska Lounge Membership, American Express Business Platinum, American Express Centurion, American Express Platinum, Delta Medallion Elite, Oneworld Emerald / Sapphire, Priority Pass, Star Alliance Gold, United Club Membership. Shared programs that work at both: Oneworld Emerald / Sapphire, Priority Pass, Star Alliance Gold, United Club Membership.
Can I pay for walk-in lounge access at IAD or SEA?
IAD: no verified walk-in pricing. SEA: 6 lounges accept paid walk-ins ($50–$60). Walk-in access is the fallback when your card's program isn't present.