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$90+ Cheap flights from Charleston to Seattle (CHS - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SEA
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find cheap flights from Charleston to Seattle with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Charleston to Seattle/Tacoma Intl are usually found in October or September, booked 12 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Find flight deals from Charleston to Seattle

Cheapest flights from Charleston to Seattle
Explore the most affordable flight options available from Charleston to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:21 pmCHS - SEA
1 stop11h 17mAmerican Airlines
Sun 12/712:31 amSEA - CHS
1 stop8h 32mAmerican Airlines
Deal found 10/27$179
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:10 amCHS - SEA
1 stop10h 43mAmerican Airlines
Mon 11/176:19 amSEA - CHS
1 stop7h 25mAmerican Airlines
Deal found 10/26$195
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:14 pmCHS - SEA
1 stop8h 23mAmerican Airlines
Fri 12/1210:58 pmSEA - CHS
1 stop8h 53mAmerican Airlines
Deal found 10/28$198
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:21 pmCHS - SEA
1 stop8h 52mAmerican Airlines
Thu 12/1111:22 amSEA - CHS
1 stop9h 36mAmerican Airlines
Deal found 10/28$204
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:24 pmCHS - SEA
Nonstop6h 06mAlaska Airlines
Tue 12/910:07 amSEA - CHS
Nonstop5h 17mAlaska Airlines
Deal found 10/27$217
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/155:10 amCHS - SEA
1 stop10h 43mAmerican Airlines
Wed 12/106:15 amSEA - CHS
1 stop7h 31mAmerican Airlines
Deal found 10/28$219
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:10 amCHS - SEA
1 stop8h 30mAmerican Airlines
Sat 11/1512:59 amSEA - CHS
1 stop9h 18mAmerican Airlines
Deal found 10/28$225
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:00 amCHS - SEA
1 stop9h 06mAmerican Airlines
Thu 12/1110:58 pmSEA - CHS
1 stop8h 24mAmerican Airlines
Deal found 10/26$229
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:25 amCHS - SEA
1 stop7h 55mDelta
Tue 12/96:00 amSEA - CHS
1 stop8h 24mDelta
Deal found 10/27$237
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:15 amCHS - SEA
1 stop8h 13mUnited Airlines
Sat 11/157:00 amSEA - CHS
1 stop9h 23mUnited Airlines
Deal found 10/26$239
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 amCHS - SEA
2 stops13h 07mUnited Airlines
Sat 12/135:00 amSEA - CHS
1 stop7h 10mUnited Airlines
Deal found 10/25$242
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:38 pmCHS - SEA
1 stop8h 50mUnited Airlines
Mon 12/811:59 pmSEA - CHS
2 stops10h 56mUnited Airlines
Deal found 10/27$243

Cheap flight deals from Charleston to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Charleston (CHS) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(American Airlines)

One-way from

$90
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$297

Good round-trip deal

$302 or less

Good one-way deal

$193 or less
Provider with most accurate pricing for Charleston-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Charleston-Seattle/Tacoma Intl flights.
Search Deals
From Charleston to Seattle/Tacoma Intl
Search Deals
One-way flight from Charleston to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Charleston to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Charleston to Seattle/Tacoma Intl.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Charleston to Seattle that are best for you.

Fly from

Charleston

Fly to

Seattle

Route

Depart

Return

Price

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 12/5

2:03 pm-7:09 pm

1 stop8h 06m

Seattle/Tacoma Intl

Mon 12/8

6:15 am-4:46 pm

1 stop7h 31m

$179

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 12/9

7:24 pm-10:30 pm

Nonstop6h 06m

Seattle/Tacoma Intl

Sat 12/13

10:07 am-6:24 pm

Nonstop5h 17m

$217

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Wed 12/3

5:25 am-10:20 am

1 stop7h 55m

Seattle/Tacoma Intl

Tue 12/9

6:00 am-5:24 pm

1 stop8h 24m

$237

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 12/9

7:24 pm-10:30 pm

Nonstop6h 06m

Seattle/Tacoma Intl

Sun 12/14

10:07 am-6:24 pm

Nonstop5h 17m

$237

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 2/28

6:45 pm-9:42 pm

Nonstop5h 57m

Seattle/Tacoma Intl

Sun 3/8

9:15 am-5:31 pm

Nonstop5h 16m

$237

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Thu 11/13

2:52 pm-8:54 pm

1 stop9h 02m

Seattle/Tacoma Intl

Mon 11/17

11:59 pm-1:55 pm

2 stops10h 56m

$244

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 12/5

7:24 pm-10:30 pm

Nonstop6h 06m

Seattle/Tacoma Intl

Mon 12/8

10:07 am-6:24 pm

Nonstop5h 17m

$257

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 2/27

6:45 pm-9:42 pm

Nonstop5h 57m

Seattle/Tacoma Intl

Mon 3/9

9:15 am-5:31 pm

Nonstop5h 16m

$257

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Thu 12/4

4:06 pm-8:50 pm

1 stop7h 44m

Seattle/Tacoma Intl

Sun 12/7

11:15 pm-10:46 am

1 stop8h 31m

$277

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 3/3

5:30 am-10:29 am

1 stop7h 59m

Seattle/Tacoma Intl

Wed 3/4

9:55 pm-11:52 am

1 stop10h 57m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 23 results
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Compare providers for flights from Charleston to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Charleston to Seattle in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Charleston-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Charleston-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Charleston-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Charleston-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Charleston-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Charleston to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Charleston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Charleston to Seattle

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

Use this chart to determine the optimal time to book a round-trip flight from Charleston to Seattle. Price data was last updated on October 24, 2025.

The price you pay for your flight from Charleston to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 12 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Charleston to Seattle?

Currently, August is the cheapest month in which you can book a flight from Charleston to Seattle (average of $179). Flying from Charleston to Seattle in June is currently the most expensive (average of $286). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHS to SEA?

Find hourly flight availability from Charleston to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Charleston to Seattle at noon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Charleston to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Charleston to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Charleston to Seattle flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Charleston to Seattle?

The best insider tips for Charleston to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Charleston to Seattle trip
Airports
CHS

For early departures, expect long security lines. Arrive early, especially during peak morning hours when many flights leave simultaneously.

Read more about CHSby Ramsey Qubein
SEA

Use the Link light rail from SEA to downtown Seattle. It's affordable, runs every 10 minutes, and takes less than 40 minutes.

Read more about SEAby Brandon Schultz
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on CHS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated October 28, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Charleston to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,203 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
7.9
Good
7,994 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,794 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
9,001 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Charleston to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Charleston to Seattle flight route?

    Within the past month, 18 users have taken a look at flights from Charleston to Seattle/Tacoma Intl.

  • How long is the flight from Charleston to Seattle?

    A quick flight from Charleston to Seattle can take about 6h 06m. American Airlines provides one of the quickest options available for as low as $217. There are 2409 mi between Charleston and Seattle. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Charleston to Seattle round-trip?

    Delta, at $98, was found to be the cheapest airline from Charleston to Seattle.Alternate airlines to your destination round-trip include American Airlines and Alaska Airlines. Delta is currently priced 74% below the average price you’ll pay for this route.

  • What are the cheapest flights from Charleston to Seattle?

    Looking at all options, your cheapest flight can be booked for $137. While the most popular route (Charleston - Seattle/Tacoma Intl) can be booked for $237 on average, our data indicates $404 when flying from Charleston to Seattle.

  • Can I find deals for flights from Charleston to Seattle that include hotel bookings?

    Yes. In addition to deals on Charleston to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Charleston to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Charleston to Seattle.

  • Can I find deals for business class flights from Charleston to Seattle?

    Yes. Cheapflights offers flight deals from Charleston to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Charleston to Seattle?

    Currently, August is the cheapest month in which you can book a flight from Charleston to Seattle (average of $179). Flying from Charleston to Seattle in June is currently the most expensive (average of $286). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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Top 6 airlines flying from Charleston to Seattle

Discover the top 6 airlines that operate flights from Charleston to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$98Average$370FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$208Average$385FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$223Average$395FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$225Average$391FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$226Average$371FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$257Average$382FlexibilityNo cancel feeOn-time85%

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