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Cheap flights from Charleston to Seattle from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Charleston to Seattle departing on 12/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:21 pm - 11:38 pmCHS-SEA
11h 17m1 stop
American Airlines Logo
10:07 pm - 8:38 amSEA-CHS
7h 31m1 stop
$179American Airlines
Find Deal
Fri, Dec 5 - Sat, Dec 13
American Airlines Logo
6:10 am - 1:08 pmCHS-SEA
9h 58m2 stops
American Airlines Logo
7:00 am - 4:56 pmSEA-CHS
6h 56m1 stop
$184American Airlines
Find Deal
Tue, Jan 27 - Sun, Feb 1
American Airlines Logo
2:37 pm - 8:45 pmCHS-SEA
9h 08m1 stop
American Airlines Logo
12:45 pm - 11:07 pmSEA-CHS
7h 22m1 stop
$207American Airlines
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Fri, Jan 9 - Fri, Jan 16
United Airlines Logo
6:00 am - 2:08 pmCHS-SEA
11h 08m1 stop
United Airlines Logo
11:50 pm - 10:27 amSEA-CHS
7h 37m1 stop
$214United Airlines
Find Deal
Fri, Apr 24 - Fri, Apr 24
Alaska Airlines Logo
7:24 pm - 10:30 pmCHS-SEA
6h 06mnonstop
Alaska Airlines Logo
10:07 am - 6:24 pmSEA-CHS
5h 17mnonstop
$217Alaska Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 16
United Airlines Logo
6:00 am - 2:08 pmCHS-SEA
11h 08m1 stop
United Airlines Logo
7:10 pm - 9:55 amSEA-CHS
11h 45m2 stops
$220United Airlines
Find Deal
Fri, Apr 24 - Fri, Apr 24
Delta Logo
5:00 pm - 11:59 pmCHS-SEA
9h 59m1 stop
Delta Logo
6:00 am - 6:16 pmSEA-CHS
9h 16m1 stop
$227Delta
Find Deal
Sat, Dec 6 - Sat, Dec 13
Alaska Airlines Logo
7:24 pm - 10:30 pmCHS-SEA
6h 06mnonstop
Alaska Airlines Logo
10:07 am - 6:24 pmSEA-CHS
5h 17mnonstop
$237Alaska Airlines
Find Deal
Wed, Dec 3 - Thu, Dec 11
Delta Logo
6:30 am - 12:41 pmCHS-SEA
9h 11m1 stop
Delta Logo
9:59 pm - 12:12 pmSEA-CHS
11h 13m1 stop
$247Delta
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Fri, Dec 5 - Tue, Dec 16
Hawaiian Airlines Logo
6:45 pm - 9:42 pmCHS-SEA
5h 57mnonstop
Hawaiian Airlines Logo
9:15 am - 5:31 pmSEA-CHS
5h 16mnonstop
$287Hawaiian Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4

American Airlines flights from Charleston to Seattle

Our best American Airlines deals on Charleston to Seattle flight tickets
American Airlines
Dec 5
CHS3:21 pmCharleston
11h 17m
1 stop
SEA11:38 pmSeattle/Tacoma Intl
Dec 13
SEA10:07 pmSeattle/Tacoma Intl
7h 31m
1 stop
CHS8:38 amCharleston
$179
Find similar
American Airlines
Jan 27
CHS6:10 amCharleston
9h 58m
2 stops
SEA1:08 pmSeattle/Tacoma Intl
Feb 1
SEA7:00 amSeattle/Tacoma Intl
6h 56m
1 stop
CHS4:56 pmCharleston
$184
Find similar
American Airlines
Jan 9
CHS2:37 pmCharleston
9h 08m
1 stop
SEA8:45 pmSeattle/Tacoma Intl
Jan 16
SEA12:45 pmSeattle/Tacoma Intl
7h 22m
1 stop
CHS11:07 pmCharleston
$207
Find similar

United Airlines flights from Charleston to Seattle

Our best United Airlines deals on Charleston to Seattle flight tickets
United Airlines
Apr 24
CHS6:00 amCharleston
11h 08m
1 stop
SEA2:08 pmSeattle/Tacoma Intl
Apr 24
SEA11:50 pmSeattle/Tacoma Intl
7h 37m
1 stop
CHS10:27 amCharleston
$214
Find similar
United Airlines
Apr 24
CHS6:00 amCharleston
11h 08m
1 stop
SEA2:08 pmSeattle/Tacoma Intl
Apr 24
SEA7:10 pmSeattle/Tacoma Intl
11h 45m
2 stops
CHS9:55 amCharleston
$220
Find similar
United Airlines
Dec 6
CHS4:38 pmCharleston
8h 50m
1 stop
SEA10:28 pmSeattle/Tacoma Intl
Dec 13
SEA5:00 amSeattle/Tacoma Intl
11h 45m
2 stops
CHS7:45 pmCharleston
$242
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Charleston to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Charleston to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 12/5

3:21 pm-11:38 pm

1 stop11h 17m

Seattle/Tacoma Intl

Sat 12/13

10:07 pm-8:38 am

1 stop7h 31m

$179

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 1/27

6:10 am-1:08 pm

2 stops9h 58m

Seattle/Tacoma Intl

Sun 2/1

7:00 am-4:56 pm

1 stop6h 56m

$184

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 1/9

2:37 pm-8:45 pm

1 stop9h 08m

Seattle/Tacoma Intl

Fri 1/16

12:45 pm-11:07 pm

1 stop7h 22m

$207

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 4/24

6:00 am-2:08 pm

1 stop11h 08m

Seattle/Tacoma Intl

Fri 4/24

11:50 pm-10:27 am

1 stop7h 37m

$214

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 12/6

7:24 pm-10:30 pm

Nonstop6h 06m

Seattle/Tacoma Intl

Tue 12/16

10:07 am-6:24 pm

Nonstop5h 17m

$217

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 4/24

6:00 am-2:08 pm

1 stop11h 08m

Seattle/Tacoma Intl

Fri 4/24

7:10 pm-9:55 am

2 stops11h 45m

$220

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 12/6

5:00 pm-11:59 pm

1 stop9h 59m

Seattle/Tacoma Intl

Sat 12/13

6:00 am-6:16 pm

1 stop9h 16m

$227

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 12/3

7:24 pm-10:30 pm

Nonstop6h 06m

Seattle/Tacoma Intl

Thu 12/11

10:07 am-6:24 pm

Nonstop5h 17m

$237

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 12/5

6:30 am-12:41 pm

1 stop9h 11m

Seattle/Tacoma Intl

Tue 12/16

9:59 pm-12:12 pm

1 stop11h 13m

$247

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 3/3

6:45 pm-9:42 pm

Nonstop5h 57m

Seattle/Tacoma Intl

Wed 3/4

9:15 am-5:31 pm

Nonstop5h 16m

$287

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Charleston to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Charleston and Seattle?

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Charleston to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $297. If you don’t want to visit Seattle in October, then you should wait until September to fly from Charleston, when ticket prices are also cheap, with an average price of $298.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Charleston is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $426. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Charleston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $602.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Charleston at noon is the least expensive time of day to depart. momondo users have found prices as low as $361 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $477. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Charleston to Seattle/Tacoma Intl flight route?

Fly from Charleston to Seattle/Tacoma Intl for the best Charleston - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Charleston when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $388 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Charleston for as low as $305 on momondo.

What cabin class options are available on Charleston to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Charleston to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Charleston to Seattle flights?

You could potentially save up to 39% on your flight if you consider stops on a Charleston to Seattle flight.

How have Charleston to Seattle flight prices changed over time?

As of November 2025, prices for Charleston to Seattle flights are approximately 19% more expensive when compared to flights at the same time last year.

When to book flights from Charleston to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Charleston to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Charleston to Seattle (CHS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Charleston to Seattle

Best Price Found

$193

Fastest flight time

5h 57m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Charleston in the past 72 hours is $193. The best round-trip flight deal from Charleston to Seattle found on momondo in the last 72 hours is $387.
The fastest flight from Charleston to Seattle takes 5h 57m
Direct flights go from Charleston to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Charleston to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 2422.1 mi away from Charleston. 5h 57m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Charleston Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Charleston Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Charleston Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Charleston Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Charleston Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Charleston to Seattle?

  • What is the most popular airline from Charleston to Seattle?

Best airlines flying from Charleston to Seattle

Compare and see reviews for airlines that fly from Charleston to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $98Free CancellationRating
7.9
8,002 reviews
Search Delta flights
American AirlinesPriceFrom $194Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $223Free CancellationRating
8.0
11,237 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,237 reviews
Search Southwest flights
United AirlinesPriceFrom $226Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
Hawaiian AirlinesPriceFrom $257Free CancellationRating
7.8
2,799 reviews
Search Hawaiian Airlines flights

  • Alaska Airlines Flights From Charleston to Seattle

    The lowest priced Alaska Airlines flight from Charleston to Seattle from the last 72 hours was $223. Generally, Alaska Airlines has 2 flights on this route every week with an average price of $393. Alaska Airlines is rated 8.0/10 by our users.

  • Hawaiian Airlines Flights From Charleston to Seattle

    Across 2,799 Hawaiian Airlines reviews on momondo, the average score is 7.8/10. Hawaiian Airlines flies from Charleston to Seattle about 5 times each week, with ticket deals ranging from $257 to $382. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Federal Way
Lakewood
Cle Elum
Fife
Centralia
Kirkland
Shoreline
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Charleston to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Charleston to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Charleston to Seattle with flexible booking policies on momondo?

Flights from Charleston to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Charleston to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Charleston to Seattle.

I’m not ready to book a flight from Charleston to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Charleston and alert you when they change.

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