Which layover airport has the shortest connection time from Charleston to Seattle?

Charlotte (CLT) has the shortest average layover time for this route: 1h 21m.

What airlines fly to Seattle?

American Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Seattle from Charleston according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Charleston to Seattle?

Flights via Dallas (DFW) offer the lowest average round-trip price of $238.

How many flights depart from Charleston to Seattle on average per week?

As of May 2026, 2 flights take off from Charleston and land in Seattle each week. The most common flight departure day for this route is Tue, with 50% of weekly flights taking off on this day.

What is the cheapest airline that flies from Charleston to Seattle/Tacoma Intl?

Delta, Southwest, and United Airlines are the most popular carriers operating from Charleston to Seattle/Tacoma Intl

Which airport is the most popular layover for flights between Charleston and Seattle?

Charlotte (CLT) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Charleston to Seattle?

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 8h 22m.

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?

As of May 2026, there are 6 operators available to choose from 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.

$109 Cheap Flights from Charleston to Seattle in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $517 to $296. The lowest price recently found on this route was $217.

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Find the cheapest flights from Charleston to Seattle

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 pm - 12:05 am

CHS

SEA

7h 50m

1 stop

11:05 pm - 11:25 am

SEA

CHS

9h 20m

1 stop

$217Southwest

Sat, Jun 20 - Wed, Jul 1

7:15 pm - 12:05 am

CHS

SEA

7h 50m

1 stop

11:05 pm - 1:30 pm

SEA

CHS

11h 25m

2 stops

$222Southwest

Sat, Jun 6 - Mon, Jun 8

7:05 am - 2:50 pm

CHS

SEA

10h 45m

1 stop

5:30 am - 5:54 pm

SEA

CHS

9h 24m

1 stop

$225Delta

Fri, Jun 5 - Sun, Jun 7

7:19 pm - 12:59 am

CHS

SEA

8h 40m

1 stop

9:35 pm - 10:07 am

SEA

CHS

9h 32m

1 stop

$261American Airlines

Tue, Jun 2 - Tue, Jun 9

7:19 pm - 12:59 am

CHS

SEA

8h 40m

1 stop

5:10 am - 6:28 pm

SEA

CHS

10h 18m

1 stop

$268American Airlines

Tue, Jun 16 - Wed, Jun 24

10:35 am - 6:35 pm

CHS

SEA

11h 00m

1 stop

9:25 pm - 10:10 am

SEA

CHS

9h 45m

1 stop

$278Southwest

Thu, Jun 4 - Tue, Jun 9

10:45 am - 3:50 pm

CHS

SEA

8h 05m

1 stop

11:05 pm - 1:30 pm

SEA

CHS

11h 25m

2 stops

$283Southwest

Tue, Jul 14 - Tue, Jul 21

5:55 pm - 12:30 am

CHS

SEA

9h 35m

1 stop

9:45 am - 7:40 pm

SEA

CHS

6h 55m

1 stop

$287Southwest

Thu, Jun 4 - Sat, Jun 6

5:00 am - 9:50 am

CHS

SEA

7h 50m

1 stop

9:35 pm - 10:07 am

SEA

CHS

9h 32m

1 stop

$291American Airlines

Wed, Jun 3 - Tue, Jun 9

5:00 am - 9:50 am

CHS

SEA

7h 50m

1 stop

5:10 am - 6:28 pm

SEA

CHS

10h 18m

1 stop

$292American Airlines

Wed, Jun 10 - Tue, Jun 16

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Southwest flights from Charleston to Seattle

Our best Southwest deals on Charleston to Seattle flight tickets

Southwest

Jun 20

CHS7:15 pmCharleston

7h 50m

1 stop

SEA12:05 amSeattle/Tacoma Intl

Jul 1

SEA11:05 pmSeattle/Tacoma Intl

9h 20m

1 stop

CHS11:25 amCharleston

$217

Southwest

Jun 6

CHS7:15 pmCharleston

7h 50m

1 stop

SEA12:05 amSeattle/Tacoma Intl

Jun 8

SEA11:05 pmSeattle/Tacoma Intl

11h 25m

2 stops

CHS1:30 pmCharleston

$222

Southwest

Jun 4

CHS10:35 amCharleston

11h 00m

1 stop

SEA6:35 pmSeattle/Tacoma Intl

Jun 9

SEA9:25 pmSeattle/Tacoma Intl

9h 45m

1 stop

CHS10:10 amCharleston

$278

American Airlines flights from Charleston to Seattle

Our best American Airlines deals on Charleston to Seattle flight tickets

American Airlines

Sep 26

CHS6:35 pmCharleston

7h 21m

1 stop

SEA10:56 pmSeattle/Tacoma Intl

Oct 3

SEA6:24 amSeattle/Tacoma Intl

7h 03m

1 stop

CHS4:27 pmCharleston

$237

American Airlines

Aug 11

CHS7:15 amCharleston

10h 17m

1 stop

SEA2:32 pmSeattle/Tacoma Intl

Aug 25

SEA11:59 pmSeattle/Tacoma Intl

8h 31m

1 stop

CHS11:30 amCharleston

$257

American Airlines

Jun 2

CHS7:19 pmCharleston

8h 40m

1 stop

SEA12:59 amSeattle/Tacoma Intl

Jun 9

SEA9:35 pmSeattle/Tacoma Intl

9h 32m

1 stop

CHS10:07 amCharleston

$261

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 6/20

7:15 pm-12:05 am

1 stop7h 50m

Seattle/Tacoma Intl

Wed 7/1

11:05 pm-11:25 am

1 stop9h 20m

$217

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 6/6

7:15 pm-12:05 am

1 stop7h 50m

Seattle/Tacoma Intl

Mon 6/8

11:05 pm-1:30 pm

2 stops11h 25m

$222

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 6/5

7:05 am-2:50 pm

1 stop10h 45m

Seattle/Tacoma Intl

Sun 6/7

5:30 am-5:54 pm

1 stop9h 24m

$225

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 6/2

7:19 pm-12:59 am

1 stop8h 40m

Seattle/Tacoma Intl

Tue 6/9

9:35 pm-10:07 am

1 stop9h 32m

$261

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 6/16

7:19 pm-12:59 am

1 stop8h 40m

Seattle/Tacoma Intl

Wed 6/24

5:10 am-6:28 pm

1 stop10h 18m

$268

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Thu 6/4

10:35 am-6:35 pm

1 stop11h 00m

Seattle/Tacoma Intl

Tue 6/9

9:25 pm-10:10 am

1 stop9h 45m

$278

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 7/14

10:45 am-3:50 pm

1 stop8h 05m

Seattle/Tacoma Intl

Tue 7/21

11:05 pm-1:30 pm

2 stops11h 25m

$283

Quickest round-trip

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Thu 6/4

5:55 pm-12:30 am

1 stop9h 35m

Seattle/Tacoma Intl

Sat 6/6

9:45 am-7:40 pm

1 stop6h 55m

$287

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 6/3

5:00 am-9:50 am

1 stop7h 50m

Seattle/Tacoma Intl

Tue 6/9

9:35 pm-10:07 am

1 stop9h 32m

$291

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 6/10

5:00 am-9:50 am

1 stop7h 50m

Seattle/Tacoma Intl

Tue 6/16

5:10 am-6:28 pm

1 stop10h 18m

$292

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

Other information

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, 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 $257. 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 Thursday. momondo users have found tickets for Thursday departures for as low as $409. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday 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 $727.

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 $418 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $1,594. Departure times in the morning 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 from Charleston 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 $363 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 $295 on momondo.

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 May 2026, prices for Charleston to Seattle flights are approximately 13% cheaper 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	$243
Fastest flight time	5h 53m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Charleston in the past 72 hours is $243. The best round-trip flight deal from Charleston to Seattle found on momondo in the last 72 hours is $382.

The fastest flight from Charleston to Seattle takes 5h 53m

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

Frequently asked questions about flying from Charleston to Seattle

How far is Charleston to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 2422.1 mi away from Charleston. 5h 53m 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?
As of May 2026, there are 6 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Charleston to Seattle is Boeing 737 MAX 9 (32.00% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (30.00%), Boeing 737 MAX 8 (12.00%), and Boeing 737-800 Passenger/BBJ2 (winglets) (10.00%).
What is the most popular airline from Charleston to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Charleston to Seattle is Alaska Airlines (41% of total bookings). The next most popular airlines are American Airlines (26%), United Airlines (13%), and Delta (9%).

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
Delta	PriceFrom $98	Free Cancellation	Rating 7.9 8,460 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $149	Free Cancellation	Rating 7.8 2,837 reviews	Search Hawaiian Airlines flights
American Airlines	PriceFrom $178	Free Cancellation	Rating 7.1 11,669 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $217	Free Cancellation	Rating 7.9 12,336 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $225	Free Cancellation	Rating 7.9 4,302 reviews	Search Southwest flights
United Airlines	PriceFrom $247	Free Cancellation	Rating 7.4 9,690 reviews	Search United 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 $217. Generally, Alaska Airlines has 2 flights on this route every week with an average price of $374. Alaska Airlines is rated 7.9/10 by our users.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Marysville

Puyallup

Tukwila

Lakewood

Cle Elum

Federal Way

Centralia

Fife

Shoreline

Westport

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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Airports servicing Washington

Walla Walla Airport

Bellingham Airport

Wenatchee Pangborn Field Airport

Eastsound Orcas Island Airport

Friday Harbor SPB Airport

Spokane Airport

Kenmore Air Harbor Airport

Pasco Tri Cities Airport

Pullman Moscow Regional Airport

Rosario SPB Airport

Yakima Air Terminal Airport

Cheap flights from Charleston to Seattle from $109

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 6/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Southwest flights from Charleston to Seattle

Our best Southwest deals on Charleston to Seattle flight tickets

American Airlines flights from Charleston to Seattle

Our best American Airlines deals on Charleston to Seattle flight tickets

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How to get the cheapest flight ticket from Charleston to Seattle

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

What is the cheapest month to fly to Seattle?

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

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

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

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

Can stopping save me money on Charleston to Seattle flights?

How have Charleston to Seattle flight prices changed over time?

What is the cheapest airline that flies from Charleston to Seattle/Tacoma Intl?

What airlines fly to Seattle?

Which airport is the most popular layover for flights between Charleston and Seattle?

Which layover airport offers the lowest fares from Charleston to Seattle?

Which layover airport has the shortest travel time from Charleston to Seattle?

Which layover airport has the shortest connection time from Charleston to Seattle?

How many flights depart from Charleston to Seattle on average per week?

When to book flights from Charleston to Seattle

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

Fastest flight time

Direct flights

Airports in Seattle

Frequently asked questions about flying 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

Alaska Airlines Flights From Charleston to Seattle

Traveling to a place near Seattle?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Seattle. Availability may vary depending on flight origin and airline.

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