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$119+ 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SEA
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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The best prices from Charleston to Seattle/Tacoma Intl are usually found in January or February, booked 68 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

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 January 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Alaska Airlines)

One-way from

$119
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$303
Provider with most accurate pricing for Charleston-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Charleston-Seattle/Tacoma Intl flights.
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From Charleston to Seattle/Tacoma Intl
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One-way flight from Charleston to Seattle/Tacoma Intl
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High demand for flights, 0% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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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 January 16, 2025.

This Alaska Airlines deal was found by Cheapflights users on 1/16. 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.
Sat 2/156:36 pmCHS - SEA
Nonstop6h 14mAlaska Airlines
Sat 2/229:25 amSEA - CHS
Nonstop5h 11mAlaska Airlines
Deal found 1/16$197
This American Airlines deal was found by Cheapflights users on 1/14. 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 2/195:18 amCHS - SEA
1 stop10h 24mAmerican Airlines
Mon 2/2411:10 pmSEA - CHS
1 stop8h 19mAmerican Airlines
Deal found 1/14$237
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Sat 2/152:40 pmCHS - SEA
1 stop8h 39mUnited Airlines
Wed 2/1911:59 pmSEA - CHS
1 stop7h 25mUnited Airlines
Deal found 1/15$257
This Mytrip deal was found by Cheapflights users on 1/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/151:03 pmCHS - SEA
2 stops14h 22mSpirit Airlines
Wed 2/198:30 amSEA - CHS
3 stops33h 49mSpirit Airlines
Deal found 1/15$279
This Mytrip deal was found by Cheapflights users on 1/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/287:10 amCHS - SEA
2 stops20h 09mMultiple Airlines
Fri 1/315:45 amSEA - CHS
2 stops14h 10mMultiple Airlines
Deal found 1/15$281
This Southwest deal was found by Cheapflights users on 1/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/192:00 pmCHS - SEA
2 stops12h 20mSouthwest
Mon 2/249:45 amSEA - CHS
1 stop9h 30mSouthwest
Deal found 1/14$312
This Mytrip deal was found by Cheapflights users on 1/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1512:59 pmCHS - SEA
1 stop12h 51mSun Country Air
Sat 6/216:40 pmSEA - CHS
1 stop14h 19mSun Country Air
Deal found 1/16$430
This Delta deal was found by Cheapflights users on 1/15. 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.
Tue 7/224:30 pmCHS - SEA
1 stop10h 38mDelta
Thu 8/75:30 pmSEA - CHS
1 stop17h 17mDelta
Deal found 1/15$466
This JetBlue deal was found by Cheapflights users on 1/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2311:15 amCHS - SEA
1 stop13h 14mJetBlue
Mon 6/210:39 pmSEA - CHS
1 stop8h 48mJetBlue
Deal found 1/16$475

Find flights from Charleston to Seattle within your budget

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 January 16, 2025.

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Fly to

Any airport

Route

Depart

Return

Price

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 2/15

6:36 pm-9:50 pm

Nonstop6h 14m

Seattle/Tacoma Intl

Wed 2/19

9:25 am-5:36 pm

Nonstop5h 11m

$197

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 2/15

4:01 pm-9:05 pm

1 stop8h 04m

Seattle/Tacoma Intl

Wed 2/19

11:59 pm-10:24 am

1 stop7h 25m

$257

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Thu 2/13

7:18 pm-12:56 am

1 stop8h 38m

Seattle/Tacoma Intl

Thu 2/20

11:59 pm-11:54 am

1 stop8h 55m

$287

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Thu 2/20

5:35 am-10:45 am

1 stop8h 10m

Seattle/Tacoma Intl

Sun 2/23

10:55 pm-12:16 pm

1 stop10h 21m

$302

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 2/15

7:15 am-12:25 am

3 stops20h 10m

Seattle/Tacoma Intl

Wed 2/19

8:30 am-9:19 pm

3 stops33h 49m

$315

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sat 2/15

7:15 am-12:25 am

3 stops20h 10m

Seattle/Tacoma Intl

Wed 2/19

8:30 am-10:38 pm

2 stops11h 08m

$319

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Tue 2/4

9:30 am-5:50 pm

1 stop11h 20m

Seattle/Tacoma Intl

Fri 2/7

5:05 am-9:55 pm

2 stops13h 50m

$337

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Sun 6/15

12:59 pm-10:50 pm

1 stop12h 51m

Seattle/Tacoma Intl

Sat 6/21

6:40 pm-11:59 am

1 stop14h 19m

$430

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 5/23

11:15 am-9:29 pm

1 stop13h 14m

Seattle/Tacoma Intl

Mon 6/2

10:39 pm-10:27 am

1 stop8h 48m

$475

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

Fri 3/14

6:36 pm-9:50 pm

Nonstop6h 14m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 16 results
1
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Charleston-Seattle flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Charleston to Seattle

Get recent, data-driven insights about flights from Charleston to Seattle including ideal travel times, pricing trends, and more.

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 January 10, 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 68 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, January is the cheapest month in which you can book a flight from Charleston to Seattle (average of $238). Flying from Charleston to Seattle in July is currently the most expensive (average of $411). 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 January 16, 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 18% 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. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 January 16, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, United Airlines and American Airlines from Charleston to Seattle to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,681 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,965 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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, 12 users have taken a look at flights from Charleston to Seattle/Tacoma Intl.

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

    Alaska Airlines, at $197, was found to be the cheapest airline from Charleston to Seattle.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Alaska Airlines is currently priced 51% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Charleston to Seattle one-way?

    The cheapest airlines for a one-way flight from Charleston to Seattle are Alaska Airlines ($119), Delta ($144), and Spirit Airlines ($175).

  • What are the cheapest flights from Charleston to Seattle?

    Looking at all options, your cheapest flight can be booked for $112. While the most popular route (Charleston - Seattle/Tacoma Intl) can be booked for $217 on average our data indicates $827 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, January is the cheapest month in which you can book a flight from Charleston to Seattle (average of $238). Flying from Charleston to Seattle in July is currently the most expensive (average of $411). 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 Charleston?

Book flights to Charleston if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Charleston to Seattle

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Top 5 airlines flying from Charleston to Seattle

Discover the top 5 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 January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$378FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$182Average$263FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$226Average$432FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$232Average$453FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$259Average$416FlexibilityNo cancel feeOn-time71%
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