Direct flights from Seattle (SEA)

Seattle-Tacoma International Airport (SEA) has active nonstop service to 136 destinations, flown by 35 airlines, led by Alaska Airlines, Delta Air Lines, and American Airlines. Premium seats move quickly on the busiest corridors, including Anchorage, Los Angeles, and Spokane, where upgrade and award space can open and close within hours. 2LNR tracks confirmed upgrade and award space on the SEA routes flown by Alaska Airlines, Delta Air Lines, and American Airlines, and award seats on Finnair, JetBlue Airways, and Air France, so you know which Seattle flights have space before you book.

Route data refreshed . Routes and carriers reflect the schedule data behind 2LNR's route map.

136
Nonstop destinations
35
Airlines serving SEA
Free
To get started

About Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) is the airport serving Seattle, Washington, United States. Its ICAO code is KSEA. Departure and arrival times at SEA are local to the America/Los_Angeles time zone. Its nonstop network reaches 136 destinations across 26 countries.

Confirmed upgrade & award space on Seattle routes

2LNR tracks confirmed upgrade and award space on Alaska Airlines, Delta Air Lines, and American Airlines, segment by segment and date by date. Pick any Seattle destination below to open a calendar of departures, the next 14 days free on every product and the full horizon on Pro.

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)

These are the city pairs behind flights to and from Seattle: 136 nonstop destinations with active service at Seattle-Tacoma International Airport. Each route links to its confirmed upgrade and award availability.

Alternative airports near Seattle (SEA)

Nearby airports with nonstop service of their own, closest first. Distances are great-circle between the two airports' coordinates, not driving time, so check the ground connection before you treat one as a substitute.

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 136 destinations in 2LNR's schedule data. The busiest markets from SEA are Anchorage, Los Angeles, and Spokane. The full list, with who flies each route and, where 2LNR tracks the carrier, upgrade and award space by date, is on this page.
Which airlines fly out of Seattle (SEA)?
The carriers with nonstop service from Seattle-Tacoma International Airport are listed in full on this page, each linked to its own route map. Alaska Airlines, Delta Air Lines, and American Airlines run the most routes from Seattle, in that order. In 2LNR's schedule data that is 35 airlines in total.
How many airlines fly out of SEA?
2LNR's schedule data currently shows 35 airlines with at least one nonstop route from Seattle (SEA). That figure counts the carrier operating the flight rather than every carrier that sells a seat on it, so a codeshare marketed by a partner is not counted twice, and it moves with the season.
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 on Alaska Airlines, Delta Air Lines, and American Airlines by date, the next 14 days free on every product and the full horizon on Pro. On Pro you can also set an alert so 2LNR notifies you when space opens.
Does 2LNR track flights from SEA?
Yes. Every nonstop route from Seattle-Tacoma International Airport in 2LNR's schedule data is listed, 136 destinations in total, and on the routes flown by Alaska Airlines, Delta Air Lines, and American Airlines what is shown is confirmed availability rather than a forecast, the next 14 days free on every product and the full horizon on Pro.

Never miss SEA upgrade or award space

See what is open by date on these routes, the next 14 days free on every product and the full horizon on Pro.

Get started free