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

As of September 2025, 7 flights take off from Charleston and land in Seattle each week. The most common flight departure day for this route is Wed, with 29% of weekly flights taking off on this day.

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

As of September 2025, there are 1 flights per day flying from Charleston to Seattle. The most common time of day flights depart is 6:00PM, with 100% of flights taking off in the evening.

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: 7h 40m.

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

Flights via Charlotte (CLT) offer the lowest average round-trip price of $326.

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

American Airlines, United Airlines, and Alaska 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: 50% of momondo users choosing 1-stop flights on this route connected there.

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 42% 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 has the shortest connection time from Charleston to Seattle?

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

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 September 2025, 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.

$90 Cheap Flights from Charleston to Seattle in 2025/26

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 $278 to $462. The lowest price recently found on this route was $178.

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Find the cheapest flights from Charleston to Seattle

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:45 pm - 12:27 amCHS-SEA

7h 42m1 stop

8:49 pm - 9:01 amSEA-CHS

9h 12m1 stop

$178American Airlines

Find Deal

Wed, Oct 15 - Tue, Oct 21

3:31 pm - 10:18 pmCHS-SEA

9h 47m1 stop

1:35 pm - 11:57 pmSEA-CHS

7h 22m1 stop

$179American Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

6:31 pm - 11:59 pmCHS-SEA

8h 28m1 stop

7:15 am - 7:29 pmSEA-CHS

9h 14m1 stop

$197Delta

Find Deal

Fri, Dec 5 - Wed, Dec 10

7:23 pm - 10:15 pmCHS-SEA

5h 52mnonstop

9:56 am - 6:17 pmSEA-CHS

5h 21mnonstop

$221Alaska Airlines

Find Deal

Tue, Oct 14 - Tue, Oct 21

7:23 pm - 10:15 pmCHS-SEA

5h 52mnonstop

9:56 am - 6:17 pmSEA-CHS

5h 21mnonstop

$234Alaska Airlines

Find Deal

Wed, Oct 15 - Tue, Oct 21

7:23 pm - 10:15 pmCHS-SEA

5h 52mnonstop

9:56 am - 6:17 pmSEA-CHS

5h 21mnonstop

$235Hawaiian Airlines

Find Deal

Wed, Oct 15 - Tue, Oct 21

2:48 pm - 11:15 pmCHS-SEA

11h 27m2 stops

11:40 pm - 10:35 amSEA-CHS

7h 55m1 stop

$252United Airlines

Find Deal

Wed, Oct 1 - Mon, Oct 6

6:59 pm - 9:59 pmCHS-SEA

6h 00mnonstop

9:40 am - 5:54 pmSEA-CHS

5h 14mnonstop

$256Hawaiian Airlines

Find Deal

Wed, Nov 5 - Mon, Nov 10

8:00 am - 2:44 pmCHS-SEA

9h 44m1 stop

9:59 pm - 12:12 pmSEA-CHS

11h 13m1 stop

$257Delta

Find Deal

Sat, Dec 6 - Tue, Dec 9

5:20 pm - 11:15 pmCHS-SEA

8h 55m1 stop

5:00 am - 8:08 pmSEA-CHS

12h 08m2 stops

$265United Airlines

Find Deal

Tue, Oct 14 - Tue, Oct 21

Delta flights from Charleston to Seattle

Our best Delta deals on Charleston to Seattle flight tickets

Delta

Dec 5

CHS6:31 pmCharleston

8h 28m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

Dec 10

SEA7:15 amSeattle/Tacoma Intl

9h 14m

1 stop

CHS7:29 pmCharleston

$197

Find similar

Delta

Dec 6

CHS8:00 amCharleston

9h 44m

1 stop

SEA2:44 pmSeattle/Tacoma Intl

Dec 9

SEA9:59 pmSeattle/Tacoma Intl

11h 13m

1 stop

CHS12:12 pmCharleston

$257

Find similar

Delta

Jan 15

CHS12:45 pmCharleston

12h 31m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

Jan 19

SEA11:05 pmSeattle/Tacoma Intl

8h 37m

1 stop

CHS10:42 amCharleston

$267

Find similar

Hawaiian Airlines flights from Charleston to Seattle

Our best Hawaiian Airlines deals on Charleston to Seattle flight tickets

Hawaiian Airlines

Oct 15

CHS7:23 pmCharleston

5h 52m

SEA10:15 pmSeattle/Tacoma Intl

Oct 21

SEA9:56 amSeattle/Tacoma Intl

5h 21m

CHS6:17 pmCharleston

$235

Find similar

Hawaiian Airlines

Nov 5

CHS6:59 pmCharleston

6h 00m

SEA9:59 pmSeattle/Tacoma Intl

Nov 10

SEA9:40 amSeattle/Tacoma Intl

5h 14m

CHS5:54 pmCharleston

$256

Find similar

Hawaiian Airlines

Oct 29

CHS6:59 pmCharleston

6h 00m

SEA9:59 pmSeattle/Tacoma Intl

Nov 5

SEA9:40 amSeattle/Tacoma Intl

5h 14m

CHS5:54 pmCharleston

$318

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 10/15

7:45 pm-12:27 am

1 stop7h 42m

Seattle/Tacoma Intl

Tue 10/21

8:49 pm-9:01 am

1 stop9h 12m

$178

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 10/29

3:31 pm-10:18 pm

1 stop9h 47m

Seattle/Tacoma Intl

Wed 11/5

1:35 pm-11:57 pm

1 stop7h 22m

$179

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 12/5

6:31 pm-11:59 pm

1 stop8h 28m

Seattle/Tacoma Intl

Wed 12/10

7:15 am-7:29 pm

1 stop9h 14m

$197

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 10/14

7:23 pm-10:15 pm

Nonstop5h 52m

Seattle/Tacoma Intl

Tue 10/21

9:56 am-6:17 pm

Nonstop5h 21m

$221

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 10/15

7:23 pm-10:15 pm

Nonstop5h 52m

Seattle/Tacoma Intl

Tue 10/21

9:56 am-6:17 pm

Nonstop5h 21m

$234

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 10/15

7:23 pm-10:15 pm

Nonstop5h 52m

Seattle/Tacoma Intl

Tue 10/21

9:56 am-6:17 pm

Nonstop5h 21m

$235

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 10/1

2:48 pm-11:15 pm

2 stops11h 27m

Seattle/Tacoma Intl

Mon 10/6

11:40 pm-10:35 am

1 stop7h 55m

$252

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 11/5

6:59 pm-9:59 pm

Nonstop6h 00m

Seattle/Tacoma Intl

Mon 11/10

9:40 am-5:54 pm

Nonstop5h 14m

$256

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 12/6

8:00 am-2:44 pm

1 stop9h 44m

Seattle/Tacoma Intl

Tue 12/9

9:59 pm-12:12 pm

1 stop11h 13m

$257

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 10/14

5:20 pm-11:15 pm

1 stop8h 55m

Seattle/Tacoma Intl

Tue 10/21

5:00 am-8:08 pm

2 stops12h 08m

$265

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, 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 $298. If you don’t want to visit Seattle in October, then you should wait until January to fly from Charleston, when ticket prices are also cheap, with an average price of $308.

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 $445. 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 $586.

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 $480. 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 $390 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 $302 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 46% 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 September 2025, prices for Charleston to Seattle flights are approximately 20% 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	$153
Fastest flight time	5h 50m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Charleston in the past 72 hours is $153. The best round-trip flight deal from Charleston to Seattle found on momondo in the last 72 hours is $298.

The fastest flight from Charleston to Seattle takes 5h 50m

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 52m 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 September 2025, 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 (65.36% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (18.30%), Boeing 737 (9.15%), and Boeing 737 MAX 8 (3.92%).
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 (51% of total bookings). The next most popular airlines are American Airlines (23%), Hawaiian Airlines (10%), 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 7,961 reviews	Search Delta flights
Alaska Airlines	PriceFrom $225	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $226	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
American Airlines	PriceFrom $228	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom $257	Free Cancellation	Rating 7.8 2,729 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $322	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights

Alaska Airlines Flights From Charleston to Seattle
The lowest priced Alaska Airlines flight from Charleston to Seattle from the last 72 hours was $225. Generally, Alaska Airlines has 1 flight on this route every week with an average price of $414. Alaska Airlines is rated 8.0/10 by our users.
Hawaiian Airlines Flights From Charleston to Seattle
Across 2,729 Hawaiian Airlines reviews on momondo, the average score is 7.8/10. Hawaiian Airlines flies from Charleston to Seattle about 6 times each week, with ticket deals ranging from $257 to $380. Price data is based on momondo searches in the last 72 hours.

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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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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 10/24. 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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Delta flights from Charleston to Seattle

Our best Delta deals on Charleston to Seattle flight tickets

Hawaiian Airlines flights from Charleston to Seattle

Our best Hawaiian Airlines deals on Charleston to Seattle flight tickets

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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?

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?

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?

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 46% 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 September 2025, prices for Charleston to Seattle flights are approximately 20% cheaper when compared to flights at the same time last year.

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

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

What airlines fly to Seattle?

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

Charlotte (CLT) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Charlotte (CLT) offer the lowest average round-trip price of $326.

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: 7h 40m.

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.

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

As of September 2025, there are 1 flights per day flying from Charleston to Seattle. The most common time of day flights depart is 6:00PM, with 100% of flights taking off in the evening.

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

As of September 2025, 7 flights take off from Charleston and land in Seattle each week. The most common flight departure day for this route is Wed, with 29% of weekly flights taking off on this day.

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

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

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

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?

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

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

Alaska Airlines Flights From Charleston to Seattle

Hawaiian Airlines Flights From Charleston to Seattle

Traveling to a place near Seattle?

Why use momondo?

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

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

How can momondo help me find flights 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?

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.