Airport route guide

Upgrade & Award Space from Seattle (SEA)

Seattle-Tacoma International Airport (SEA) has active nonstop service to 140 destinations from Seattle, US, led by Alaska Airlines, Inc., Delta Air Lines, and American Airlines. Premium seats move quickly on the busiest corridors, including Anchorage, Portland, and San Francisco, where upgrade and award space can open and close within hours. 2LNR tracks confirmed availability on every SEA route, so you know which Seattle flights have space before you book.

Data current as of July 22, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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140
Nonstop destinations
30+
Airlines in award search
Free
To get started

Confirmed upgrade & award space on every SEA route

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Pick any Seattle destination below to open a calendar of departures with real availability, or watch a route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each SEA route, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch a Seattle route and 2LNR notifies you when space appears.

Plan on the map

Explore every SEA nonstop on the interactive route map, with connections and route statistics.

All nonstop destinations from Seattle (SEA)

140 nonstop destinations with active service from Seattle-Tacoma International Airport. Each route links to its confirmed upgrade and award availability.

Explore SEA routes on the interactive map →

Frequently asked questions about Seattle (SEA)

How many nonstop destinations does Seattle-Tacoma International Airport (SEA) serve?
Seattle-Tacoma International Airport has active nonstop service to 140 destinations. The busiest markets from SEA are Anchorage, Portland, and San Francisco. The full list, with live upgrade and award availability for each route, is on this page.
Which airlines fly upgrade-trackable routes from SEA?
Alaska Airlines, Inc., Delta Air Lines, and American Airlines operate the most tracked routes from Seattle, in that order. 2LNR covers upgrade and award space on more than 30 airlines, so other carriers serving SEA appear on their routes as well.
How do I check upgrade or award availability from SEA?
Pick any destination on this page, such as Anchorage, to open a calendar of SEA departures with confirmed upgrade and award space, date by date. You can also set an alert so 2LNR notifies you when space opens on a route you care about.
Does 2LNR track flights from SEA?
Yes. Every active nonstop route from Seattle-Tacoma International Airport is tracked, 140 destinations in total, and what's shown is confirmed availability rather than a forecast. It's free to start.

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