$83 Cheap flight deals from Seattle (SEA) to Charleston (CMI)

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This Weekend's Flight Deals from Seattle to Charleston

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 10 - Tue, Oct 13
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
$467 Roundtrip, found 5 hours ago
$467
Roundtrip
found 5 hours ago
Select Bargain Flight flight, departing Sat, Oct 10 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Tue, Oct 13, priced at $467 found 5 hours ago
Fri, Oct 9 - Fri, Nov 13
PAE
Seattle Paine Field Intl. Airport
STL
Lambert-St. Louis Intl.
$598 Roundtrip, found 1 day ago
$598
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Oct 9 from Seattle Paine Field Intl. Airport to Lambert-St. Louis Intl., returning Fri, Nov 13, priced at $598 found 1 day ago

Airfares from $83 One Way, $171 Round Trip from Seattle to Charleston

Prices starting at $171 for return flights and $83 for one-way flights to Charleston were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 3 - Tue, Dec 8
SEA
Seattle
STL
St. Louis
$171 Roundtrip, found 2 hours ago
$171
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Thu, Dec 3 from Seattle to St. Louis, returning Tue, Dec 8, priced at $171 found 2 hours ago
Thu, Dec 3 - Tue, Dec 8
SEA
Seattle
STL
St. Louis
$176 Roundtrip, found 2 hours ago
$176
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Thu, Dec 3 from Seattle to St. Louis, returning Tue, Dec 8, priced at $176 found 2 hours ago
Thu, Dec 3 - Mon, Dec 7
SEA
Seattle
STL
St. Louis
$181 Roundtrip, found 2 hours ago
$181
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Thu, Dec 3 from Seattle to St. Louis, returning Mon, Dec 7, priced at $181 found 2 hours ago
Mon, Nov 9 - Sat, Nov 14
SEA
Seattle
STL
St. Louis
$202 Roundtrip, found 7 hours ago
$202
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Mon, Nov 9 from Seattle to St. Louis, returning Sat, Nov 14, priced at $202 found 7 hours ago
Thu, Dec 3 - Tue, Dec 8
SEA
Seattle
STL
St. Louis
$225 Roundtrip, found 2 hours ago
$225
Roundtrip
found 2 hours ago
Select Delta flight, departing Thu, Dec 3 from Seattle to St. Louis, returning Tue, Dec 8, priced at $225 found 2 hours ago

Charleston economy flight packages

Price found within the past 48 hours. Click for updated prices.
Moonrise Hotel
4.0-star property

Moonrise Hotel

9/10 Wonderful! (2,026 reviews)

Nov 11 - Nov 14

3 night stay

Seattle (SEA) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Seattle (SEA)

Alaska Airlines • Coach
Price was $566, price is now $412 per person
$412
per person
found 1 day ago
The sheets were stained and dirty, the bed was not well made. The staff at reception, especially Nina, are amazing and extremely helpful!! I wish the hotel were tidier and lobby furniture freshened up some, the location is ideal!

Reviewed on Oct 5, 2026

Ameristar Casino Resort and Spa
4.5-star property

Ameristar Casino Resort and Spa

8.6/10 Excellent! (1,062 reviews)

Nov 11 - Nov 14

3 night stay

Seattle (SEA) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Seattle (SEA)

Alaska Airlines • Coach
Price was $820, price is now $663 per person
$663
per person
found 1 day ago
Easy parking, friendly staff, and large rooms were the highlights of Ameristar. I picked this hotel for my last night in St. Louis before a depressingly early flight. At 10 minutes to the airport, it was a very easy morning. The casino was an added bonus, giving me a way to unwind before my time home. Unfortunately, it is extremely smoky from the moment you get off the elevator from the parking garage. Even on the non-smoking floor of the casino, there is no refuge from the cigarette smell. That was to be expected though, and my non-smoking room was clean and unexpectedly large with a sunken living room and view of a body of water that I'm too lazy to look up.

Reviewed on Oct 4, 2026

Marriott St. Louis Airport
4.0-star property

Marriott St. Louis Airport

8/10 Very Good! (1,001 reviews)

Nov 11 - Nov 14

3 night stay

Seattle (SEA) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Seattle (SEA)

Alaska Airlines • Coach
Price was $566, price is now $458 per person
$458
per person
found 1 day ago
There was a huge conference in town so rooms were a premium. We had scheduled our plans a bit late so we didn’t get the exact rooms we booked. But the staff did a great job in getting us as close as possible and made nice concessions for the inconveinence.

Reviewed on Oct 4, 2026

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More About Flying To Charleston from Seattle

Route Information for Flights from Seattle to Charleston

Origin Airport IATA Code
SEA
Destination Airport IATA Code
CMI
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Seattle to Charleston

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.