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$83+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SEA
févr. 25 — mars 41
mar. 2/25
mar. 3/4
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 Wednesday 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 février 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Delta)

One-way from

$83
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$350

Good round-trip deal

$390 or less

Good one-way deal

$229 or less
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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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Charleston to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Charleston to Seattle/Tacoma Intl.
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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 février 20, 2025.

This Delta deal was found by Cheapflights users on 2/20. 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.
jeu. 4/171:55 pmCHS - SEA
1 stop9h 55mDelta
dim. 4/2012:40 amSEA - CHS
1 stop9h 18mDelta
Deal found 2/20$257
This United Airlines deal was found by Cheapflights users on 2/20. 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.
mar. 5/66:00 amCHS - SEA
1 stop8h 38mUnited Airlines
lun. 5/127:33 pmSEA - CHS
2 stops11h 58mUnited Airlines
Deal found 2/20$263
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/126:45 pmCHS - SEA
Nonstop5h 57mHawaiian Airlines
ven. 8/229:15 amSEA - CHS
Nonstop5h 16mHawaiian Airlines
Deal found 2/20$268
This Mytrip deal was found by Cheapflights users on 2/20. 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.
mar. 5/611:45 amCHS - SEA
2 stops31h 08mMultiple Airlines
lun. 5/121:37 pmSEA - CHS
2 stops29h 09mMultiple Airlines
Deal found 2/20$270
This Mytrip deal was found by Cheapflights users on 2/20. 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.
mar. 5/611:45 amCHS - SEA
2 stops27h 57mSpirit Airlines
lun. 5/121:37 pmSEA - CHS
3 stops25h 31mSpirit Airlines
Deal found 2/20$282
This American Airlines deal was found by Cheapflights users on 2/20. 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.
jeu. 3/65:08 amCHS - SEA
2 stops10h 27mAmerican Airlines
dim. 3/91:50 pmSEA - CHS
1 stop7h 17mAmerican Airlines
Deal found 2/20$292
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
ven. 9/196:45 pmCHS - SEA
Nonstop5h 57mAlaska Airlines
ven. 9/269:15 amSEA - CHS
Nonstop5h 16mAlaska Airlines
Deal found 2/20$298
This Southwest deal was found by Cheapflights users on 2/20. 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.
mar. 8/1210:45 amCHS - SEA
1 stop12h 30mSouthwest
ven. 8/225:00 amSEA - CHS
2 stops11h 00mSouthwest
Deal found 2/20$358

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 février 20, 2025.

Fly from

Charleston

Fly to

Seattle

Route

Depart

Return

Price

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

jeu. 4/17

1:55 pm-8:50 pm

1 stop9h 55m

Seattle/Tacoma Intl

dim. 4/20

12:40 am-12:58 pm

1 stop9h 18m

$257

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

mar. 5/6

6:00 am-11:38 am

1 stop8h 38m

Seattle/Tacoma Intl

lun. 5/12

7:33 pm-10:31 am

2 stops11h 58m

$263

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

mar. 8/12

6:45 pm-9:42 pm

Nonstop5h 57m

Seattle/Tacoma Intl

ven. 8/22

9:15 am-5:31 pm

Nonstop5h 16m

$268

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

mar. 5/6

11:45 am-3:53 pm

2 stops31h 08m

Seattle/Tacoma Intl

lun. 5/12

1:37 pm-9:46 pm

2 stops29h 09m

$270

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

mar. 5/6

11:45 am-12:42 pm

2 stops27h 57m

Seattle/Tacoma Intl

lun. 5/12

1:37 pm-6:08 pm

3 stops25h 31m

$282

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

jeu. 3/6

5:08 am-12:35 pm

2 stops10h 27m

Seattle/Tacoma Intl

dim. 3/9

1:50 pm-12:07 am

1 stop7h 17m

$292

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

ven. 3/21

6:38 pm-9:49 pm

Nonstop6h 11m

Seattle/Tacoma Intl

sam. 3/29

9:25 am-5:38 pm

Nonstop5h 13m

$348

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

mar. 8/12

10:45 am-8:15 pm

1 stop12h 30m

Seattle/Tacoma Intl

ven. 8/22

5:00 am-7:00 pm

2 stops11h 00m

$358

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

lun. 3/17

10:48 am-7:02 pm

3 stops35h 14m

$83

CharlestonSeattle

CHS - SEA

CHSSEA

Charleston

jeu. 3/20

6:38 pm-9:49 pm

Nonstop6h 11m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 18 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
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 February 14, 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 février 20, 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 27% 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 afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Charleston to Seattle

Explore weekly flight availability from Charleston to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated février 20, 2025.

The most flights from CHS to SEA are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 février 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta 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
4,411 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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.

  • What airports do I use to fly from Charleston to Seattle?

    If you book a flight from Charleston to Seattle, you will be flying from Charleston to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Charleston (CHS) take 5h 57m for a nonstop flight. There are 2 flights from Charleston to Seattle per day from 5 airlines.

  • 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?

    Delta, at $257, was found to be the cheapest airline from Charleston to Seattle.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Delta is currently priced 37% 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 Spirit Airlines ($83), Hawaiian Airlines ($119), and JetBlue ($121).

  • What are the cheapest flights from Charleston to Seattle?

    Looking at all options, your cheapest flight can be booked for $118. While the most popular route (Charleston - Seattle/Tacoma Intl) can be booked for $223 on average our data indicates $362 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
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
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 février 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$182Average$263FlexibilityNo cancel feeOn-time65%
DeltaCheapest$223Average$385FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$226Average$437FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$235Average$457FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$268Average$421FlexibilityNo cancel feeOn-time71%
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