$102 Find Cheap Flights from Charleston to Seattle - Compare and Save

These are the earliest and latest flight times available from Charleston to Seattle:

• Earliest: departs at 5:58 pm and lands at 12:03 am
• Latest: departs at 6:59 pm and lands at 1:04 am.

The flight takes about 6h 05m.

Three cabin classes are available on flights from Charleston to Seattle:

• Economy Class
• Premium Economy Class
• First Class

A nonstop flight from Charleston to Seattle takes 6h 05m, covering 2,409 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Charleston to Seattle range from $315 to $528, with an average of $406 over the past 12 months. Anything below $315 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 35% above the $406 route average. Book 19 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $258 round-trip via Philadelphia (PHL), compared to $435 for nonstop.

The Boeing 737-900 Passenger/BBJ3 (winglets) family is used most often on this route, operated mainly by Alaska Airlines. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

Evening is the busiest departure period on Charleston to Seattle flights, with 100% of flights leaving in that window. Morning departures account for 0%, afternoon flights for 0%, and night flights for 0%.

Alaska Airlines is the only airline on the Charleston to Seattle route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from Charleston to Seattle are currently lower than usual. Average one-way flight prices are about $123, which is 51% below the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Budget
• Hertz

Flights from Charleston to Seattle usually depart from Charleston (CHS) and arrive at Seattle/Tacoma Intl (SEA).

One-stop flights from Charleston to Seattle most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 31% of one-stop connections
• Charlotte Douglas (CLT) - 26% of one-stop connections
• Chicago O'Hare Intl (ORD) - 21% of one-stop connections
• Dallas/Fort Worth (DFW) - 6% of one-stop connections

Yes. Flexible dates can save you up to 34% on flights from Charleston to Seattle. Wednesday is the cheapest departure day at $347 round-trip on average, while Sunday is the most expensive at $520, a difference of $173.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Only Alaska Airlines operates flights between Charleston and Seattle.

Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 7h 51m, compared with 8h 06m via Charlotte Douglas (CLT) and 8h 16m via Washington, D.C. Dulles Intl (IAD).

Seattle is 3 hours behind Charleston (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Among airlines operating Charleston to Seattle flights:

• Alaska Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Many airlines, such as Delta, Southwest, and Alaska Airlines, have taken initiatives to reduce their carbon footprint associated with this route. They do this through fuel efficiency measures and investments in sustainable aviation practices.These include using sustainable biofuels, implementing energy-efficient technologies, optimizing flight routes, and reducing single-use plastics.

Several airlines offer services for unaccompanied minors on this route, ensuring their safety and support throughout the journey. JetBlue allows a maximum of three unaccompanied minors per nonstop flight and accepts children aged 5 to 14 as unaccompanied minors.

Some airlines offer upgrade options via email after booking, providing an opportunity to enjoy first class services at a more affordable price. American Airlines does offer last-minute upgrades after initial booking, where you have the opportunity to buy an upgrade to a higher cabin class at a cheaper cost.

Baggage allowances vary depending on the airline, but generally, economy class passengers are allowed one carry-on bag and one checked bag. Alaska Airlines carry-on bags must not exceed the dimensions of 22 x 14 x 9 inches and you should be able to fit it in the overhead bin unassisted.