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Cheap flights from Seattle to Charleston from C$ 142

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Seattle to Charleston

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Charleston (CHS). 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 17 January 2025.

Round-trip from

C$ 341

One-way from

C$ 142

Popular in

December

Cheapest in

February

Average price

C$ 500
Alaska Airlines
  • Alaska Airlines
  • 20/2-3/3
  • Nonstop
  • 11h 25m total
  • Seattle to Charleston
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Alaska Airlines
  • Alaska Airlines
  • 5/2
  • Nonstop
  • 5h 17m total
  • Seattle to Charleston
Search Deals
High demand for flights, 7% potential price rise
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Best time to find cheap flights, 4% potential price drop
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from Seattle to Charleston

Cheapest flights from Seattle to Charleston
Explore the most affordable flight options available from Seattle to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Thu 20/29:25 a.m.SEA - CHS
Nonstop5h 11mAlaska Airlines
Mon 3/36:36 p.m.CHS - SEA
Nonstop6h 14mAlaska Airlines
Deal found 16/1C$ 341
Wed 7/512:08 p.m.SEA - CHS
1 stop8h 49mUnited Airlines
Tue 13/54:00 p.m.CHS - SEA
1 stop9h 44mUnited Airlines
Deal found 15/1C$ 369
Wed 29/110:55 p.m.SEA - CHS
1 stop10h 24mDelta
Fri 31/15:35 a.m.CHS - SEA
1 stop8h 10mDelta
Deal found 16/1C$ 412
Sat 8/34:05 p.m.SEA - CHS
2 stops14h 30mSouthwest
Wed 12/34:00 p.m.CHS - SEA
2 stops10h 45mSouthwest
Deal found 16/1C$ 516

Find flights from Seattle to Charleston within your budget

Customize your flight search to find flights from Seattle to Charleston 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 629,999 searches. Data last updated 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Thu 20/2

9:25 a.m.-5:36 p.m.

Nonstop5h 11m

Charleston

Mon 3/3

6:36 p.m.-9:50 p.m.

Nonstop6h 14m

C$ 341

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 7/5

12:08 p.m.-11:57 p.m.

1 stop8h 49m

Charleston

Tue 13/5

4:00 p.m.-10:44 p.m.

1 stop9h 44m

C$ 369

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 29/1

10:55 p.m.-12:19 p.m.

1 stop10h 24m

Charleston

Fri 31/1

5:35 a.m.-10:45 a.m.

1 stop8h 10m

C$ 412

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 8/3

4:05 p.m.-9:35 a.m.

2 stops14h 30m

Charleston

Wed 12/3

4:00 p.m.-11:45 p.m.

2 stops10h 45m

C$ 516

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Wed 5/2

9:15 a.m.-5:32 p.m.

Nonstop5h 17m

C$ 142

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 22/2

8:10 a.m.-7:05 p.m.

1 stop7h 55m

C$ 185

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sun 4/5

10:39 p.m.-10:27 a.m.

1 stop8h 48m

C$ 190

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 4/2

7:11 a.m.-7:35 p.m.

1 stop9h 24m

C$ 207

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Tue 4/2

9:10 a.m.-10:50 p.m.

2 stops10h 40m

C$ 266

SeattleCharleston

SEA - CHS

SEACHS

Seattle/Tacoma Intl

Sat 17/5

1:20 p.m.-11:13 a.m.

1 stop18h 53m

C$ 292

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/1

Showing 1-10 of 11 results
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Best time to book a flight from Seattle to Charleston

Have a flexible travel schedule? Discover the best time to fly to Charleston from Seattle 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 Seattle to Charleston

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Charleston. Price data was last updated on 10 January 2025.

Booking 24 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Charleston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Seattle to Charleston (average of C$ 407). Flying from Seattle to Charleston in March is currently the most expensive (average of C$ 560). 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 SEA to CHS?

Find hourly flight availability from Seattle to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

When flying from Seattle to Charleston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Charleston by month

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

In terms of precipitation, rainfall in Charleston ranges from 61.0 - 183.0 mm per month. August is typically the wettest month, when rainfall can reach 183.0 mm. November is typically the driest time to visit Charleston when rainfall is around 61.0 mm.

Temperature in Charleston by month

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

If weather is an important factor for your trip to Charleston, 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 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

Reviews of airlines servicing Charleston

Get insights into the airlines that provide service to Charleston. 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 Charleston. Reviews last updated 17 January 2025.
See what other customers who have flown with United Airlines, Delta and Alaska Airlines from Seattle to Charleston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews
Check prices

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
Check prices

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
Check prices

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
Check prices

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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.

JetBlue
7.4
Good
3,199 reviews
Southwest
8.1
Very good
4,659 reviews
Check prices

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
Check prices

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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 Seattle to Charleston. 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 Seattle to Charleston flight route?

    The Seattle/Tacoma Intl to Charleston flight path was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Cheapflights users have booked flights from Seattle to Charleston round-trip from C$ 341. Other airlines that can offer you cheap pricing are United Airlines, from C$ 369, and Delta, from C$ 412. Users have found that Alaska Airlines is 43% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Seattle to Charleston are Alaska Airlines (C$ 142), United Airlines (C$ 185), and JetBlue (C$ 190).

  • What are the cheapest flights from Seattle to Charleston?

    On average you can expect to pay C$ 411 for a flight from Seattle to Charleston. The cheapest flight overall is C$ 282 while the most popular route, (Seattle/Tacoma Intl - Charleston) is currently priced at C$ 757.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Charleston 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 Seattle to Charleston?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Charleston (average of C$ 407). Flying from Seattle to Charleston in March is currently the most expensive (average of C$ 560). 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

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Can Cheapflights find flights from Seattle to Charleston with no change fees?

Need flexible booking options for your flight to Charleston from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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