Charleston to Seattle (CHS-SEA): nonstop upgrade & award space

Alaska Airlines flies the CHS to SEA nonstop about 7 times a week. With Alaska Airlines flying most of the schedule, the long-haul premium cabin opens when that one carrier decides it does, which is why the calendar matters more than the search. 2LNR tracks confirmed upgrade and award space on Alaska Airlines, on every CHS to SEA departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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7
Nonstop flights a week
2,410 mi
Nonstop distance
Free
To get started

Charleston to Seattle flight schedule

Scheduled nonstop departures for CHS to SEA, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Charleston (CHS) to Seattle (SEA)
Date Flight Airline Departs CHS Arrives SEA Duration Aircraft
AS 787Alaska Airlines, Inc.19:0922:005h 51m7M9
AS 787Alaska Airlines, Inc.19:0922:005h 51m7M9
AS 787Alaska Airlines, Inc.18:0921:005h 51m7M9
AS 787Alaska Airlines, Inc.19:0922:005h 51m7M9
AS 787Alaska Airlines, Inc.19:0922:005h 51m73H
AS 787Alaska Airlines, Inc.19:0922:005h 51m73J
AS 787Alaska Airlines, Inc.19:0922:005h 51m7M9

Showing all 7 scheduled CHS to SEA departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every CHS to SEA date on the interactive map

Confirmed upgrade & award space on CHS to SEA departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines, segment by segment and date by date. Open the calendar for Charleston to Seattle to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

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

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See CHS to SEA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Charleston to Seattle nonstop

Carriers operating CHS to SEA nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See CHS to SEA on the interactive map →

Frequently asked questions about CHS to SEA

How far is Seattle from Charleston?
CHS to SEA covers about 2,410 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from CHS to SEA?
Alaska Airlines is currently the only airline flying CHS to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines.
How many flights a week are there from CHS to SEA?
About 7 nonstop flights a week run between Charleston and Seattle in the current schedule, operated by Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from CHS to SEA depart?
Scheduled CHS to SEA nonstops in the next 7 days with service leave between 18:09 and 19:09, local time at Charleston. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on CHS to SEA?
Open the CHS to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss CHS to SEA upgrade or award space

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

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