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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 1/27. 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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Find the cheapest flights from Charleston to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
4:07 pm - 10:07 pm
CHS
-
SEA
9h 00m1 stop
American Airlines Logo
9:45 pm - 9:48 am
SEA
-
CHS
9h 03m1 stop
$179American Airlines
Tue, Jan 27 - Sun, Feb 1
American Airlines Logo
6:10 am - 1:08 pm
CHS
-
SEA
9h 58m2 stops
American Airlines Logo
9:45 pm - 9:48 am
SEA
-
CHS
9h 03m1 stop
$184American Airlines
Tue, Jan 27 - Sun, Feb 1
American Airlines Logo
6:10 am - 1:14 pm
CHS
-
SEA
10h 04m2 stops
American Airlines Logo
8:04 am - 9:08 pm
SEA
-
CHS
10h 04m2 stops
$189American Airlines
Thu, Jan 22 - Tue, Jan 27
Delta Logo
4:30 pm - 10:05 pm
CHS
-
SEA
8h 35m1 stop
Delta Logo
9:20 pm - 9:42 am
SEA
-
CHS
9h 22m1 stop
$197Delta
Tue, May 5 - Wed, May 13
American Airlines Logo
7:45 pm - 12:52 am
CHS
-
SEA
8h 07m1 stop
American Airlines Logo
10:55 pm - 10:17 am
SEA
-
CHS
8h 22m1 stop
$207American Airlines
Thu, Apr 23 - Mon, Apr 27
American Airlines Logo
6:10 am - 1:14 pm
CHS
-
SEA
10h 04m2 stops
American Airlines Logo
9:45 pm - 9:48 am
SEA
-
CHS
9h 03m1 stop
$212American Airlines
Fri, Jan 30 - Mon, Feb 2
American Airlines Logo
4:07 pm - 10:07 pm
CHS
-
SEA
9h 00m1 stop
American Airlines Logo
7:00 am - 4:53 pm
SEA
-
CHS
6h 53m1 stop
$243American Airlines
Mon, Jan 19 - Tue, Feb 3
Delta Logo
5:18 pm - 11:15 pm
CHS
-
SEA
8h 57m1 stop
Delta Logo
11:10 pm - 11:09 am
SEA
-
CHS
8h 59m1 stop
$247Delta
Sun, Feb 1 - Sat, Feb 7
American Airlines Logo
4:07 pm - 10:07 pm
CHS
-
SEA
9h 00m1 stop
American Airlines Logo
8:04 am - 9:08 pm
SEA
-
CHS
10h 04m2 stops
$248American Airlines
Mon, Jan 19 - Tue, Feb 3
United Airlines Logo
6:05 am - 11:32 am
CHS
-
SEA
8h 27m1 stop
United Airlines Logo
6:48 am - 11:44 pm
SEA
-
CHS
13h 56m2 stops
$253United Airlines
Sun, Feb 1 - Sat, Feb 7

American Airlines flights from Charleston to Seattle

Our best American Airlines deals on Charleston to Seattle flight tickets
American Airlines
Jan 27
CHS4:07 pmCharleston
9h 00m
1 stop
SEA10:07 pmSeattle/Tacoma Intl
Feb 1
SEA9:45 pmSeattle/Tacoma Intl
9h 03m
1 stop
CHS9:48 amCharleston
$179
Find similar
American Airlines
Jan 27
CHS6:10 amCharleston
9h 58m
2 stops
SEA1:08 pmSeattle/Tacoma Intl
Feb 1
SEA9:45 pmSeattle/Tacoma Intl
9h 03m
1 stop
CHS9:48 amCharleston
$184
Find similar
American Airlines
Jan 27
CHS6:10 amCharleston
9h 58m
2 stops
SEA1:08 pmSeattle/Tacoma Intl
Feb 3
SEA8:04 amSeattle/Tacoma Intl
10h 04m
2 stops
CHS9:08 pmCharleston
$189
Find similar

Delta flights from Charleston to Seattle

Our best Delta deals on Charleston to Seattle flight tickets
Delta
May 5
CHS4:30 pmCharleston
8h 35m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
May 13
SEA9:20 pmSeattle/Tacoma Intl
9h 22m
1 stop
CHS9:42 amCharleston
$197
Find similar
Delta
May 5
CHS4:30 pmCharleston
8h 35m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
May 13
SEA9:20 pmSeattle/Tacoma Intl
9h 22m
1 stop
CHS9:42 amCharleston
$258
Find similar
Delta
Dec 25
CHS7:30 amCharleston
7h 51m
1 stop
SEA12:21 pmSeattle/Tacoma Intl
Jan 1
SEA10:55 pmSeattle/Tacoma Intl
10h 40m
1 stop
CHS12:35 pmCharleston
$302
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 December 18, 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

Tue 1/27

4:07 pm-10:07 pm

1 stop9h 00m

Seattle/Tacoma Intl

Sun 2/1

9:45 pm-9:48 am

1 stop9h 03m

$179

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 1/27

6:10 am-1:08 pm

2 stops9h 58m

Seattle/Tacoma Intl

Sun 2/1

9:45 pm-9:48 am

1 stop9h 03m

$184

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Thu 1/22

6:10 am-1:14 pm

2 stops10h 04m

Seattle/Tacoma Intl

Tue 1/27

8:04 am-9:08 pm

2 stops10h 04m

$189

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 5/5

4:30 pm-10:05 pm

1 stop8h 35m

Seattle/Tacoma Intl

Wed 5/13

9:20 pm-9:42 am

1 stop9h 22m

$197

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Thu 4/23

7:45 pm-12:52 am

1 stop8h 07m

Seattle/Tacoma Intl

Mon 4/27

10:55 pm-10:17 am

1 stop8h 22m

$207

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 1/30

6:10 am-1:14 pm

2 stops10h 04m

Seattle/Tacoma Intl

Mon 2/2

9:45 pm-9:48 am

1 stop9h 03m

$212

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Mon 1/19

4:07 pm-10:07 pm

1 stop9h 00m

Seattle/Tacoma Intl

Tue 2/3

7:00 am-4:53 pm

1 stop6h 53m

$243

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sun 2/1

5:18 pm-11:15 pm

1 stop8h 57m

Seattle/Tacoma Intl

Sat 2/7

11:10 pm-11:09 am

1 stop8h 59m

$247

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Mon 1/19

4:07 pm-10:07 pm

1 stop9h 00m

Seattle/Tacoma Intl

Tue 2/3

8:04 am-9:08 pm

2 stops10h 04m

$248

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sun 2/1

6:05 am-11:32 am

1 stop8h 27m

Seattle/Tacoma Intl

Sat 2/7

6:48 am-11:44 pm

2 stops13h 56m

$253

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 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 $405. 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 $476. 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 $386 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 $303 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 6% 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 December 2025, prices for Charleston to Seattle flights are approximately 16% 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

$238

Fastest flight time

6h 03m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Charleston in the past 72 hours is $238. The best round-trip flight deal from Charleston to Seattle found on momondo in the last 72 hours is $237.
The fastest flight from Charleston to Seattle takes 6h 03m
Direct flights go from Charleston to Seattle every day.
There is 1 airport in Seattle. From Charleston there are direct flights to 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. 6h 03m 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
8,009 reviews
Search Delta flights
American AirlinesPriceFrom $194Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $222Free CancellationRating
8.0
11,479 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,251 reviews
Search Southwest flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
Hawaiian AirlinesPriceFrom $257Free CancellationRating
7.8
2,820 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 $222. Generally, Alaska Airlines has 1 flight on this route every week with an average price of $390. Alaska Airlines is rated 8.0/10 by our users.

  • Hawaiian Airlines Flights From Charleston to Seattle

    Across 2,820 Hawaiian Airlines reviews on momondo, the average score is 7.8/10. Hawaiian Airlines flies from Charleston to Seattle about 3 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
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
Shoreline

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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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