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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 5/13. 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
7:21 pm - 12:55 am
CHS
-
SEA
8h 34m
1 stop
American Airlines Logo
10:57 pm - 10:17 am
SEA
-
CHS
8h 20m
1 stop
$179American Airlines
Thu, Feb 26 - Sun, Mar 1
American Airlines Logo
3:54 pm - 11:04 pm
CHS
-
SEA
10h 10m
2 stops
American Airlines Logo
10:57 pm - 10:17 am
SEA
-
CHS
8h 20m
1 stop
$184American Airlines
Tue, Feb 24 - Sat, Feb 28
Delta Logo
6:00 am - 2:42 pm
CHS
-
SEA
11h 42m
1 stop
Delta Logo
11:59 pm - 11:46 am
SEA
-
CHS
8h 47m
1 stop
$197Delta
Tue, Apr 28 - Sun, May 3
American Airlines Logo
6:32 pm - 12:51 am
CHS
-
SEA
9h 19m
1 stop
American Airlines Logo
11:28 pm - 11:49 am
SEA
-
CHS
9h 21m
1 stop
$207American Airlines
Fri, May 8 - Tue, May 19
Delta Logo
4:51 pm - 10:05 pm
CHS
-
SEA
8h 14m
1 stop
Delta Logo
10:58 pm - 12:04 pm
SEA
-
CHS
10h 06m
1 stop
$218Delta
Tue, Mar 10 - Mon, Mar 16
American Airlines Logo
6:05 am - 11:27 am
CHS
-
SEA
8h 22m
1 stop
American Airlines Logo
12:07 am - 11:39 am
SEA
-
CHS
8h 32m
1 stop
$219American Airlines
Wed, Feb 18 - Tue, Mar 3
Alaska Airlines Logo
6:32 pm - 9:46 pm
CHS
-
SEA
6h 14mnonstop
Alaska Airlines Logo
9:28 am - 5:32 pm
SEA
-
CHS
5h 04mnonstop
$237Alaska Airlines
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
10:05 am - 7:03 pm
CHS
-
SEA
11h 58m
2 stops
United Airlines Logo
7:00 am - 6:04 pm
SEA
-
CHS
8h 04m
1 stop
$242United Airlines
Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
7:15 am - 2:27 pm
CHS
-
SEA
10h 12m
1 stop
American Airlines Logo
6:00 am - 7:26 pm
SEA
-
CHS
10h 26m
1 stop
$248American Airlines
Tue, May 19 - Sun, May 24
United Airlines Logo
6:00 am - 2:16 pm
CHS
-
SEA
11h 16m
1 stop
United Airlines Logo
10:40 pm - 10:23 am
SEA
-
CHS
8h 43m
1 stop
$251United Airlines
Tue, Jun 9 - Sun, Jun 14

American Airlines flights from Charleston to Seattle

Our best American Airlines deals on Charleston to Seattle flight tickets
American Airlines
Feb 26
CHS7:21 pmCharleston
8h 34m
1 stop
SEA12:55 amSeattle/Tacoma Intl
Mar 1
SEA10:57 pmSeattle/Tacoma Intl
8h 20m
1 stop
CHS10:17 amCharleston
$179
American Airlines
Feb 24
CHS3:54 pmCharleston
10h 10m
2 stops
SEA11:04 pmSeattle/Tacoma Intl
Feb 28
SEA10:57 pmSeattle/Tacoma Intl
8h 20m
1 stop
CHS10:17 amCharleston
$184
American Airlines
May 8
CHS6:32 pmCharleston
9h 19m
1 stop
SEA12:51 amSeattle/Tacoma Intl
May 19
SEA11:28 pmSeattle/Tacoma Intl
9h 21m
1 stop
CHS11:49 amCharleston
$207

Delta flights from Charleston to Seattle

Our best Delta deals on Charleston to Seattle flight tickets
Delta
Apr 28
CHS6:00 amCharleston
11h 42m
1 stop
SEA2:42 pmSeattle/Tacoma Intl
May 3
SEA11:59 pmSeattle/Tacoma Intl
8h 47m
1 stop
CHS11:46 amCharleston
$197
Delta
Mar 10
CHS4:51 pmCharleston
8h 14m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
Mar 16
SEA10:58 pmSeattle/Tacoma Intl
10h 06m
1 stop
CHS12:04 pmCharleston
$218
Delta
Jul 24
CHS5:55 pmCharleston
9h 11m
1 stop
SEA12:06 amSeattle/Tacoma Intl
Aug 4
SEA8:40 amSeattle/Tacoma Intl
9h 01m
1 stop
CHS8:41 pmCharleston
$349

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 February 3, 2026.
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

Thu 2/26

7:21 pm-12:55 am

1 stop8h 34m

Seattle/Tacoma Intl

Sun 3/1

10:57 pm-10:17 am

1 stop8h 20m

$179

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 2/24

3:54 pm-11:04 pm

2 stops10h 10m

Seattle/Tacoma Intl

Sat 2/28

10:57 pm-10:17 am

1 stop8h 20m

$184

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 4/28

6:00 am-2:42 pm

1 stop11h 42m

Seattle/Tacoma Intl

Sun 5/3

11:59 pm-11:46 am

1 stop8h 47m

$197

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 5/8

6:32 pm-12:51 am

1 stop9h 19m

Seattle/Tacoma Intl

Tue 5/19

11:28 pm-11:49 am

1 stop9h 21m

$207

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 3/10

4:51 pm-10:05 pm

1 stop8h 14m

Seattle/Tacoma Intl

Mon 3/16

10:58 pm-12:04 pm

1 stop10h 06m

$218

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 2/18

6:05 am-11:27 am

1 stop8h 22m

Seattle/Tacoma Intl

Tue 3/3

12:07 am-11:39 am

1 stop8h 32m

$219

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 3/10

6:32 pm-9:46 pm

Nonstop6h 14m

Seattle/Tacoma Intl

Tue 3/17

9:28 am-5:32 pm

Nonstop5h 04m

$237

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 3/4

10:05 am-7:03 pm

2 stops11h 58m

Seattle/Tacoma Intl

Wed 3/11

7:00 am-6:04 pm

1 stop8h 04m

$242

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 5/19

7:15 am-2:27 pm

1 stop10h 12m

Seattle/Tacoma Intl

Sun 5/24

6:00 am-7:26 pm

1 stop10h 26m

$248

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 6/9

6:00 am-2:16 pm

1 stop11h 16m

Seattle/Tacoma Intl

Sun 6/14

10:40 pm-10:23 am

1 stop8h 43m

$251

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, February 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 $286. If you don’t want to visit Seattle in February, then you should wait until October to fly from Charleston, when ticket prices are also cheap, with an average price of $297.

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 $398. 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 $619.

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

Flying to Seattle from Charleston in the evening is the least expensive time of day to depart. momondo users have found prices as low as $387 when looking at flights departing in the evening. 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 $374 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 $314 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?

No. A direct flight is the cheapest option for a flight between Charleston to Seattle.

How have Charleston to Seattle flight prices changed over time?

As of February 2026, prices for Charleston to Seattle flights are approximately 23% 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

$158

Fastest flight time

5h 54m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Charleston in the past 72 hours is $158. The best round-trip flight deal from Charleston to Seattle found on momondo in the last 72 hours is $307.
The fastest flight from Charleston to Seattle takes 5h 54m
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. 5h 54m 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
8,132 reviews
Search Delta flights
American AirlinesPriceFrom $178Free CancellationRating
7.2
11,212 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom $189Free CancellationRating
7.8
2,830 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $220Free CancellationRating
8.0
11,829 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,271 reviews
Search Southwest flights
United AirlinesPriceFrom $238Free CancellationRating
7.4
9,231 reviews
Search United Airlines flights

  • Hawaiian Airlines Flights From Charleston to Seattle

    The lowest priced Hawaiian Airlines flight from Charleston to Seattle from the last 72 hours was $189. Generally, Hawaiian Airlines has 4 flights on this route every week with an average price of $374. Hawaiian Airlines is rated 7.8/10 by our users.

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
Redmond
Puyallup
Cle Elum
Tukwila
Lakewood
Federal Way
Westport
Kirkland
Centralia
Fife
Tumwater

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

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