SEA - CHS

$143 Find Cheap Flights from Seattle to Charleston - Compare and Save

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Everything you should know

Cheapest round-trip
$295
Typical prices: $304-$545
Southwest
Mon 12/10Sat 12/15
SEA - CHS • 1 stop
Cheapest non-stop
$376
Typical prices: $334-$593
Alaska Airlines
Mon 1/29Wed 1/31
SEA - CHS • Non-stop
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 5h 15m
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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We hope you love your trip to Charleston!
Flight Deals
Booking Insights
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

Fri, Jan 29 - Sun, Jan 31
American Airlines Logo
12:47 pm - 11:07 pmSEA  Seattle/Tacoma Intl-CHS Charleston
7h 20m1 stop Charlotte Douglas
American Airlines Logo
4:48 pm - 10:35 pmCHS  Charleston-SEA Seattle/Tacoma Intl
8h 47m1 stop Dallas/Fort Worth
$304American Airlines
Sun, Nov 22 - Tue, Dec 1
American Airlines Logo
5:40 am - 4:08 pmSEA  Seattle/Tacoma Intl-CHS Charleston
7h 28m1 stop Charlotte Douglas
American Airlines Logo
4:59 pm - 11:19 pmCHS  Charleston-SEA Seattle/Tacoma Intl
9h 20m1 stop Charlotte Douglas
$305American Airlines
Wed, Oct 28 - Wed, Nov 4
United Airlines Logo
6:17 am - 5:39 pmSEA  Seattle/Tacoma Intl-CHS Charleston
8h 22m1 stop Newark
United Airlines Logo
4:15 pm - 9:19 pmCHS  Charleston-SEA Seattle/Tacoma Intl
8h 04m1 stop Denver Intl
$305United Airlines
Sat, Feb 6 - Sat, Feb 13
United Airlines Logo
8:00 am - 6:59 pmSEA  Seattle/Tacoma Intl-CHS Charleston
7h 59m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
4:00 pm - 9:12 pmCHS  Charleston-SEA Seattle/Tacoma Intl
8h 12m1 stop Denver Intl
$305United Airlines
Sun, Oct 25 - Tue, Nov 3
Delta Logo
11:59 pm - 10:10 amSEA  Seattle/Tacoma Intl-CHS Charleston
7h 11m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:10 am - 2:45 pmCHS  Charleston-SEA Seattle/Tacoma Intl
10h 35m1 stop Detroit Metropolitan Wayne County
$305Delta
Fri, Oct 23 - Sat, Oct 31
Delta Logo
1:40 pm - 11:59 pmSEA  Seattle/Tacoma Intl-CHS Charleston
7h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:57 pm - 8:09 pmCHS  Charleston-SEA Seattle/Tacoma Intl
10h 12m1 stop New York John F Kennedy Intl
$305Delta
Thu, Dec 10 - Tue, Dec 15
Southwest Logo
6:30 am - 4:30 pmSEA  Seattle/Tacoma Intl-CHS Charleston
7h 00m1 stop Chicago Midway
Southwest Logo
1:30 pm - 11:30 pmCHS  Charleston-SEA Seattle/Tacoma Intl
13h 00m2 stops Baltimore/Washington Chicago Midway
$310Southwest
Thu, Dec 10 - Wed, Dec 16
Southwest Logo
6:30 am - 4:30 pmSEA  Seattle/Tacoma Intl-CHS Charleston
7h 00m1 stop Chicago Midway
Southwest Logo
1:25 pm - 10:30 pmCHS  Charleston-SEA Seattle/Tacoma Intl
12h 05m2 stops Dallas Love Field Denver Intl
$310Southwest
Fri, Jan 29 - Sun, Jan 31
Alaska Airlines Logo
9:15 am - 5:19 pmSEA  Seattle/Tacoma Intl-CHS Charleston
5h 04mnonstop
Alaska Airlines Logo
6:22 pm - 9:34 pmCHS  Charleston-SEA Seattle/Tacoma Intl
6h 12mnonstop
$376Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
Alaska Airlines Logo
9:33 am - 5:55 pmSEA  Seattle/Tacoma Intl-CHS Charleston
5h 22mnonstop
Alaska Airlines Logo
6:59 pm - 9:55 pmCHS  Charleston-SEA Seattle/Tacoma Intl
5h 56mnonstop
$377Alaska Airlines
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 with more confidence.

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

Round-trip flights from Seattle to Charleston typically range from $304 to $545. The lowest price found in the past 5 days was $295, on Southwest.

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

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

What’s 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 flights 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

$143
Beat the crowds with an average 52% drop in travelers.
The most popular month to fly with an average 2% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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 1:53 pm
    • Latest: departs at 9:39 am and lands at 2:54 pm.

    The flight takes about 5h 15m.

  • 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 long is a flight from Seattle to Charleston?

    A nonstop flight from Seattle to Charleston takes 5h 15m, 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 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.

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

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

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

  • 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%.

  • 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.

  • 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 $161, which is 37% below the typical average for this route.

  • 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

  • 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 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

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

    Yes. Flexible dates can save you up to 26% on flights from Seattle to Charleston. Sunday is the cheapest departure day at $352 round-trip on average, while Monday is the most expensive at $471, a difference of $119.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What airlines fly from Seattle to Charleston?

    Only Alaska Airlines operates flights between Seattle and Charleston.

  • 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.

  • 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.

  • 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 always check the fare details before booking.

  • 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.

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 are flexible, aim for a Sunday departure and avoid flying on Monday. On this route, Sunday flights average $352, about $119 less than Monday fares (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