The Pacific Northwest is defined by two major gateway cities—Seattle in Washington and Portland in Oregon. While each city has its own identity, culture, and geography, together they form the backbone of air travel and connectivity across the region.
From international arrivals to regional connections, Seattle and Portland serve as the primary entry points into the Pacific Northwest, linking travellers to coastal towns, inland cities, and mountain communities across Washington and Oregon.
Seattle: Washington’s Primary International Gateway
Seattle is the largest city in the Pacific Northwest and a major global aviation hub.
- Seattle (SEA) – Washington’s primary airport and the largest international gateway in the Pacific Northwest
Seattle serves as the central hub for Washington State’s air travel network, connecting travellers to cities such as Spokane, Bellingham, Yakima, and beyond. Its coastal location and global connectivity make it a primary entry point for both international and domestic travel.
Portland: Oregon’s Central Travel Hub
Portland is Oregon’s largest city and the state’s primary aviation gateway.
- Portland (PDX) – Oregon’s main airport and central hub for travel across the Willamette Valley and surrounding regions
From Portland, travellers can access cities like Eugene, Salem, Astoria, and Medford, making it the core distribution point for Oregon’s air travel network.
How the Two Cities Connect the Region
Seattle and Portland are not isolated gateways—they form a connected north–south corridor that defines much of Pacific Northwest travel.
Seattle anchors the northern portion of the region, while Portland anchors the southern half. Between them lies a continuous network of coastal, valley, and inland cities connected through regional airports and major travel routes.
This dual-core system is what makes the Pacific Northwest unique: two major cities working together to structure an entire regional travel network.
Washington and Oregon Beyond the Gateways
Beyond Seattle and Portland, the Pacific Northwest expands into a wide range of regional destinations:
- Spokane, Yakima, and Walla Walla in Washington
- Eugene, Salem, Medford, Astoria, and Redmond in Oregon
- Smaller hubs across coastal, inland, and mountain regions
These cities extend the reach of the region’s air travel system, but all remain connected back to the two primary gateways.
Explore the Pacific Northwest
Discover more destinations across the region through our Pacific Northwest collection, or explore state-level hubs in Washington and Oregon.
Explore More Pacific Northwest Travel Guides
- Flying into the Pacific Northwest: Seattle, Portland & Regional Airports Explained
- Airports of the Pacific Northwest: A Complete Guide to Washington & Oregon Travel Hubs
- Exploring the Pacific Coast by Air: From Seattle to Portland and Beyond
- Inland Pacific Northwest: Spokane, Yakima & Oregon’s Interior Cities
