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

Alaska Airlines flies the SEA to CHS 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 SEA to CHS 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

Seattle to Charleston flight schedule

Scheduled nonstop departures for SEA to CHS, 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 Seattle (SEA) to Charleston (CHS)
Date Flight Airline Departs SEA Arrives CHS Duration Aircraft
AS 787Alaska Airlines, Inc.09:3918:065h 27m7M9
AS 787Alaska Airlines, Inc.09:3918:065h 27m7M9
AS 787Alaska Airlines, Inc.09:3918:065h 27m7M8
AS 787Alaska Airlines, Inc.09:3918:065h 27m7M9
AS 787Alaska Airlines, Inc.09:3918:065h 27m73J
AS 787Alaska Airlines, Inc.09:3918:065h 27m7M9
AS 787Alaska Airlines, Inc.09:3918:065h 27m7M9

Showing all 7 scheduled SEA to CHS 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 SEA to CHS date on the interactive map

Confirmed upgrade & award space on SEA to CHS departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines, segment by segment and date by date. Open the calendar for Seattle to Charleston 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 SEA to CHS 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 SEA to CHS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seattle to Charleston nonstop

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

See SEA to CHS on the interactive map →

Frequently asked questions about SEA to CHS

How far is Charleston from Seattle?
SEA to CHS 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 SEA to CHS?
Alaska Airlines is currently the only airline flying SEA to CHS nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines.
How many flights a week are there from SEA to CHS?
About 7 nonstop flights a week run between Seattle and Charleston 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 SEA to CHS depart?
In the next 7 days with service, every scheduled SEA to CHS nonstop leaves at 09:39 local time at Seattle. The schedule table on this page lists each departure by date.
How do I check upgrade or award availability on SEA to CHS?
Open the SEA to CHS 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 SEA to CHS 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.

Get started free