SEA - CHS

$102 Find Cheap Flights from Seattle to Charleston - Compare and Save

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Everything you should know

Cheapest round-trip
$203
Typical prices: $304-$545
American Airlines
Sun 10/21Sat 10/27
SEA - CHS • 1 stop
Cheapest non-stop
$377
Typical prices: $334-$593
Alaska Airlines
Wed 10/3Sun 10/7
SEA - CHS • Non-stop
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 5h 20m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 13 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $312 (round-trip)
Shortest trip • 7h 42m (one-way)
Insights
Insights
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Expert advice
Flight Deals

Cheap Flights from Seattle to Charleston (SEA-CHS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Charleston

Wed, Oct 21 - Tue, Oct 27
American Airlines Logo
10:31 am - 11:59 pmSEA  Seattle/Tacoma Intl-CHS Charleston
10h 28m1 stop Chicago O'Hare Intl
American Airlines Logo
7:16 am - 3:43 pmCHS  Charleston-SEA Seattle/Tacoma Intl
11h 27m1 stop Chicago O'Hare Intl
$203American Airlines
Wed, Oct 28 - Tue, Nov 3
American Airlines Logo
11:03 am - 9:50 pmSEA  Seattle/Tacoma Intl-CHS Charleston
7h 47m1 stop Charlotte Douglas
American Airlines Logo
7:13 am - 3:44 pmCHS  Charleston-SEA Seattle/Tacoma Intl
11h 31m1 stop Chicago O'Hare Intl
$203American Airlines
Sun, Oct 18 - Thu, Oct 22
JetBlue Logo
10:15 pm - 10:15 amSEA  Seattle/Tacoma Intl-CHS Charleston
9h 00m1 stop New York John F Kennedy Intl
JetBlue Logo
3:03 pm - 10:42 pmCHS  Charleston-SEA Seattle/Tacoma Intl
10h 39m1 stop Boston Logan Intl
$236JetBlue
Mon, Oct 19 - Fri, Oct 23
JetBlue Logo
11:55 pm - 2:12 pmSEA  Seattle/Tacoma Intl-CHS Charleston
11h 17m1 stop Boston Logan Intl
JetBlue Logo
2:59 pm - 10:42 pmCHS  Charleston-SEA Seattle/Tacoma Intl
10h 43m1 stop Boston Logan Intl
$241JetBlue
Sat, Oct 3 - Wed, Oct 7
United Airlines Logo
11:14 pm - 10:02 amSEA  Seattle/Tacoma Intl-CHS Charleston
7h 48m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
3:05 pm - 9:55 pmCHS  Charleston-SEA Seattle/Tacoma Intl
9h 50m1 stop Newark
$242United Airlines
Fri, Oct 16 - Tue, Oct 20
United Airlines Logo
11:13 pm - 10:25 amSEA  Seattle/Tacoma Intl-CHS Charleston
8h 12m1 stop Chicago O'Hare Intl
United Airlines Logo
3:03 pm - 9:55 pmCHS  Charleston-SEA Seattle/Tacoma Intl
9h 52m1 stop Newark
$242United Airlines
Sat, Oct 3 - Wed, Oct 7
Delta Logo
7:20 am - 7:38 pmSEA  Seattle/Tacoma Intl-CHS Charleston
9h 18m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:20 pm - 10:03 pmCHS  Charleston-SEA Seattle/Tacoma Intl
8h 43m1 stop Atlanta Hartsfield-Jackson
$247Delta
Tue, Oct 6 - Mon, Oct 19
Delta Logo
11:59 pm - 10:10 amSEA  Seattle/Tacoma Intl-CHS Charleston
7h 11m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 pm - 11:52 pmCHS  Charleston-SEA Seattle/Tacoma Intl
7h 52m1 stop Atlanta Hartsfield-Jackson
$247Delta
Wed, Oct 28 - Sat, Oct 31
Southwest Logo
12:10 am - 4:05 pmSEA  Seattle/Tacoma Intl-CHS Charleston
12h 55m1 stop Chicago Midway
Southwest Logo
7:45 am - 6:30 pmCHS  Charleston-SEA Seattle/Tacoma Intl
13h 45m2 stops Baltimore/Washington Denver Intl
$262Southwest
Wed, Oct 28 - Sat, Oct 31
Southwest Logo
12:10 am - 2:00 pmSEA  Seattle/Tacoma Intl-CHS Charleston
10h 50m2 stops Chicago Midway Baltimore/Washington
Southwest Logo
7:45 am - 6:30 pmCHS  Charleston-SEA Seattle/Tacoma Intl
13h 45m2 stops Baltimore/Washington Denver Intl
$281Southwest
Booking Insights

Price, demand and travel trends for Seattle to Charleston flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Seattle to Charleston with more confidence.

How much is a round-trip flight from Seattle to Charleston?

Round-trip flights from Seattle to Charleston start at $203. Prices are below average for this route right now, with typical round-trip fares ranging from $304 to $545. The lowest price found in the past 5 days was $203 on American Airlines.

What's the cheapest day of the week to fly from Seattle to Charleston?

Sunday is the cheapest day of the week to fly from Seattle to Charleston, it is 14% cheaper than the average day. Monday is the most expensive day with flight prices 16% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • February is the cheapest month to fly from Seattle to Charleston at $287 round-trip.
  • November ($538) and August ($503) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 87% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Charleston the cheapest?

Flights from Seattle to Charleston are cheapest 13 weeks before departure. Booking in this window typically costs about 41% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Seattle to Charleston

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Brandon Schultz

Brandon Schultz

Expert on CHS

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.

Key details for Seattle to Charleston flights

Low season

January

Cheapest flight

$124
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Seattle to Charleston

When to book flights from Seattle to Charleston

Are your dates flexible? Find out the best times to travel from Seattle to Charleston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Seattle to Charleston flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which cities are served by Charleston International Airport?

    CHS airport serves several nearby cities. After arriving at this airport, you can explore several cities, including Hanahan, Georgetown, North Charleston, Summerville, Hilton Head Island, Ladson, Orangeburg, Mount Pleasant, and Sumter.

  • How do I get from downtown Seattle to Seattle-Tacoma International Airport?

    If you need public transport, you can get from the city to the airport using the Line 124 bus, which takes 55 minutes to get to the airport. You can also use a tram and arrive at the airport in approximately 33 minutes. However, you can take a taxi if you need the fastest means and get to the airport in about 18min.

  • Which is the most sustainable airline for flights from Seattle to Charleston?

    If you're looking for sustainable flights from Seattle to Charleston, you can go for Alaska Airlines. This airline offers the most environmentally friendly flights in North America. They have ensured fuel efficiency for seven straight years. In addition, they have partnered with Boxed Water to offer eco-friendly foods and drinks and reduce plastic waste.

  • Is there public transport from CHS to downtown Charleston?

    Yes, there are buses at the airport’s terminals to get you to downtown Charleston in about 28 minutes. You can also take a shuttle bus that takes approximately 41min to get to the city. This is because it makes several stops to drop travelers along the way.

  • Which airlines offer extra legroom and free seat selection on Seattle to Charleston flights?

    Among airlines operating Seattle to Charleston flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Seattle to Charleston?

    Only Alaska Airlines operates flights between Seattle and Charleston.

  • Which airports can I use when flying from Seattle to Charleston?

    Flights from Seattle to Charleston usually depart from Seattle/Tacoma Intl (SEA) and arrive at Charleston (CHS).

  • Which airlines include bags at no extra cost on Seattle to Charleston flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Seattle to Charleston?

    Two cabin classes are available on flights from Seattle to Charleston:

    • Economy Class
    • First Class

  • How much can I save by taking a layover when flying from Seattle to Charleston?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $312 round-trip via Washington, D.C. Dulles Intl (IAD), compared to $435 for nonstop.

  • Which aircraft model is used most often on flights from Seattle to Charleston?

    The Boeing 737 MAX 9 family is used most often on this route, operated mainly by Alaska Airlines and Hawaiian Airlines. Other aircraft seen on the route include Boeing 737-900 Passenger/BBJ3 (winglets) variants.

  • Which airports do connecting flights from Seattle to Charleston pass through?

    One-stop flights from Seattle to Charleston most commonly connect through:

    • Chicago O'Hare Intl (ORD) - 29% of one-stop connections
    • Charlotte Douglas (CLT) - 26% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 24% of one-stop connections
    • Dallas/Fort Worth (DFW) - 10% of one-stop connections

    Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Charleston?

    On the Seattle to Charleston route, being flexible with your departure day can save you up to 26%. Sunday is the cheapest day at $352 round-trip on average, while Monday is the most expensive at $471: a $119 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How are flight departures from Seattle to Charleston spread across the day?

    Morning is the busiest departure period on Seattle to Charleston flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

  • What are the earliest and latest flights from Seattle to Charleston?

    These are the earliest and latest flight times available from Seattle to Charleston:

    • Earliest: departs at 8:38 am and lands at 1:58 pm
    • Latest: departs at 9:39 am and lands at 2:59 pm.

    The flight takes about 5h 20m.

  • How expensive are last-minute Seattle to Charleston flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 28% above the route average of $405. Book 13 weeks before departure for the lowest fares.

  • How long is a flight from Seattle to Charleston?

    A nonstop flight from Seattle to Charleston takes 5h 20m, covering 2,409 miles.

  • Do I need a passport to fly from Seattle to Charleston?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • How are flight prices from Seattle to Charleston looking right now?

    One-way fares from Seattle to Charleston are currently lower than usual. Average one-way flight prices are about $133, which is 48% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Seattle to Charleston?

    Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 7h 42m, compared with 7h 48m via Charlotte Douglas (CLT) and 7h 48m via Denver Intl (DEN).

  • What is the time difference between Seattle and Charleston?

    Charleston is 3 hours ahead of Seattle (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Charleston Airport (CHS)?

    Charleston Airport (CHS) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:
    • Budget
    • Alamo
    • Economy Rent a Car
    • Avis
    • Thrifty

  • How much should I expect to pay for a Seattle to Charleston flight?

    Round-trip flights from Seattle to Charleston range from $304 to $545, with an average of $405 over the past 12 months. Anything below $304 counts as a good deal.

  • Which airlines offer Wi-Fi on Seattle to Charleston flights?

    Alaska Airlines is the only airline on the Seattle to Charleston route offering in-flight Wi-Fi. Pricing depends on fare class.

Your guide to booking Seattle to Charleston flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Sunday departure instead of Monday. On this route, Sunday flights average $352 - about $119 less than Monday (25% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 41% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Charleston trip for February. Fares historically average $287 round-trip in that month - typically $251 less than the most expensive month, which is November (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Washington, D.C. Dulles Intl Airport (IAD) can be cheaper than flying direct. The cheapest layover option averages $312 round-trip on this route - about $123 less than direct flights (based on the last 12 months).
  • Seattle-Tacoma International Airport (SEA) has several lounges where you can relax, eat, or take a shower. If you're flying using Alaska Airlines, you can access Alaska Lounges at Concourse C, Concourse D, or North Satellite Terminal. Other lounges at the airport include USO Lounge at the Main Terminal, The Club SEA, Delta Sky Club, and United Club at Concourse A, Centurion Lounge at Concourse B, and British Airways First and Terraces Lounge at South Satellite Terminal.
  • Charleston International Airport (CHS) is a hub for Breeze Airways. At the same time, Seattle-Tacoma International Airport works as a hub for Delta Air Lines and Alaska Airlines, making it one of the biggest airports in North America.
  • Parking at SEA airport isn't challenging because you can choose the airport parking garage or off-airport parking. The on-site airport garage has eight floors, and you can decide where to park. However, offsite parking at the airport has several advantages, including avoiding airport traffic, shuttles taking you to the airport, and staff handling your luggage.
  • After arriving at Charleston International Airport, you can find car rental offices past the baggage area at the end of the terminal. Car rentals near the airport include National, Avis, Enterprise, Alamo, Easirent, and Sunnycars. However, you need to be at least 21 years old and have a valid driver's license to rent a car.
  • Seattle-Tacoma International Airport offers shuttle services for travelers arriving at the airport. The shuttle picks you up from your arrival area in the city and drops you at the baggage claim area at the airport. Again, depending on your needs, you can choose a shared shuttle or a private car.

Prefer to fly direct from Seattle to Charleston?

 
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Charleston Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Charleston

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Charleston to Seattle/Tacoma Intl

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

More options for your flight from Seattle to Charleston

Complete your trip to Charleston with a hotel stay or car rental