SEA - CHS

$84 Find Cheap Flights from Seattle to Charleston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Charleston departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Charleston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Charleston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Charleston.
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Everything you should know

Cheapest round-trip
$199
Overall average: $478
American Airlines
Mon 4/13Fri 4/17
SEA - CHS • 1 stop
Cheapest non-stop
$317
Typical prices: $338-$542
Alaska Airlines
Thu 5/21Fri 5/29
SEA - CHS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Use SEA Spot Saver for faster security at Seattle.
For a cheaper ride, choose rideshare at Charleston.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $207 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 5h 15m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $307 (round-trip)
Shortest trip • 6h 54m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
+1
+1
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+1
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We hope you love your trip to Charleston!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Seattle to Charleston (SEA-CHS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Charleston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Charleston

Mon, Apr 13 - Fri, Apr 17
American Airlines Logo
10:47 pm - 11:35 am
SEA
-
CHS
9h 48m
1 stop
American Airlines Logo
7:30 pm - 12:44 am
CHS
-
SEA
8h 14m
1 stop
$199American Airlines
Wed, Apr 22 - Tue, Apr 28
American Airlines Logo
11:16 am - 11:08 pm
SEA
-
CHS
8h 52m
1 stop
American Airlines Logo
7:07 am - 12:29 pm
CHS
-
SEA
8h 22m
1 stop
$207American Airlines
Mon, Apr 20 - Wed, Apr 29
American Airlines Logo
7:09 am - 6:40 pm
SEA
-
CHS
8h 31m
1 stop
American Airlines Logo
7:07 am - 2:27 pm
CHS
-
SEA
10h 20m
1 stop
$213American Airlines
Tue, Apr 14 - Tue, Apr 21
American Airlines Logo
10:25 am - 10:41 pm
SEA
-
CHS
9h 16m
1 stop
American Airlines Logo
12:46 pm - 9:23 pm
CHS
-
SEA
11h 37m
1 stop
$218American Airlines
Sun, Apr 26 - Wed, Apr 29
Southwest Logo
5:15 am - 4:00 pm
SEA
-
CHS
7h 45m
1 stop
Southwest Logo
7:15 am - 12:45 pm
CHS
-
SEA
8h 30m
1 stop
$219Southwest
Sun, Apr 26 - Wed, Apr 29
Southwest Logo
11:55 pm - 12:35 pm
SEA
-
CHS
9h 40m
2 stops
Southwest Logo
7:15 am - 12:45 pm
CHS
-
SEA
8h 30m
1 stop
$224Southwest
Mon, Apr 20 - Wed, Apr 29
Southwest Logo
5:15 am - 9:55 pm
SEA
-
CHS
13h 40m
1 stop
Southwest Logo
1:15 pm - 10:30 pm
CHS
-
SEA
12h 15m
2 stops
$225Southwest
Mon, May 11 - Fri, May 15
Southwest Logo
11:55 pm - 1:35 pm
SEA
-
CHS
10h 40m
2 stops
Southwest Logo
5:45 pm - 12:40 am
CHS
-
SEA
9h 55m
2 stops
$229Southwest
Mon, May 11 - Fri, May 15
Southwest Logo
5:15 am - 9:55 pm
SEA
-
CHS
13h 40m
1 stop
Southwest Logo
5:45 pm - 12:40 am
CHS
-
SEA
9h 55m
2 stops
$230Southwest
Tue, Apr 21 - Wed, Apr 29
Delta Logo
7:20 am - 9:34 pm
SEA
-
CHS
11h 14m
1 stop
Delta Logo
12:04 pm - 7:59 pm
CHS
-
SEA
10h 55m
1 stop
$233Delta
Booking Insights

KAYAK's insights & trends for Seattle to Charleston flights

Get data-powered insights and trends into flights from Seattle to Charleston to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all round-trip flights from Seattle to Charleston clicked on KAYAK for each day over the last 12 months.

For Seattle to Charleston, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Charleston back to Seattle, the best deals are generally found on Tuesday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Charleston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Charleston is February, where tickets cost $288 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $481 and $478 respectively.

Can I save money by flying with a layover from Seattle to Charleston?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $348, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Charleston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Charleston, you should book around 4 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Charleston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

Good to know

Low seasonJanuary
Cheapest flight$84
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 6% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Charleston

  • 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.

  • What is the cheapest flight from Seattle to Charleston?

    In the last 3 days, the lowest price for a flight from Seattle to Charleston was $84 for a one-way ticket and $207 for a round-trip.

  • Do I need a passport to fly between Seattle and Charleston?

    No, a passport isn't needed to fly from Seattle to Charleston. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Charleston?

    Alaska Airlines, American Airlines, and Hawaiian Airlines offer inflight Wi-Fi service on the Seattle to Charleston flight route.

  • Which aircraft models fly most regularly from Seattle to Charleston?

    The Boeing 737-900 Passenger/BBJ3 (winglets) is the aircraft model that flies most regularly on the Seattle to Charleston flight route.

  • Which airline alliances offer flights from Seattle to Charleston?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Seattle and Charleston, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Charleston?

    There are nonstop flights from Seattle to Charleston on a daily basis.

  • Which is the best airline for flights from Seattle to Charleston, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Charleston are Southwest and Alaska Airlines. With an average price for the route of $492 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $399 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Seattle to Charleston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Charleston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Charleston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Charleston from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Charleston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Charleston with an airline and back to Seattle with another airline. Booking your flights between Seattle and CHS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Charleston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Charleston from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Charleston

  • Looking for a cheap flight? 25% of our users found flights on this route for $308 or less one-way and $372 or less round-trip.
  • 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?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl 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

Reviews of the top 5 airlines serving from Seattle to Charleston

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Charleston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Charleston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12051 reviews
7.0Entertainment
7.8Comfort
8.5Crew
7.1Food
8.1Boarding
Airline reviews

Never got on because the airline sent the WRONG plane to take us on our first leg of the trip so we missed ALL connecting flights. No help available from anyone at the airline…

2.0 MediocreAnonymous, Mar 2026
SEA - MSP
Read more Alaska Airlines reviews

Never got on because the airline sent the WRONG plane to take us on our first leg of the trip so we missed ALL connecting flights. No help available from anyone at the airline…

The crew inside the airport for Alaska was rude, lazy and incompetent

The flight was extremely smooth, and so was the landing. Great piloting.

Plane was clean, staff was professional and flight was on time. No built in tv was still ok, as programs were offered that could synch to smart phones.

J was in the ER x 3...3 protruding discs...contacted Alaska many many days prior to cancel and request a refund or a credjt.. they only gave me 50 % credit....outrageous seeing how i have a doctors letter....just plain inhuman. AI sucks!

The flight was too short. No snacks or drinks offered.

The flight attendant was friendly and attentive. Although our interaction was brief—- it made a difference. The crew was upfront about turbulence. I like the Maui pretzels.

Everything was good. Please have a wheat free option for snacks in the future.

They are always so great! Friendly, on time if not early, organized boarding process. Great price too.

Crew very courteous. Boarding was great. Slow to get baggage at Denver.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

There was no wifi available at any price -- the plane did not have wifi equipment. Movie choices were blah - hits from the past; nothing recent. The food was blah airplane food. They should have had Mai Tai drinks available as per the Hawaiian Airlines magazine, but they had none onboard.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Check in was rough because the check in crew did not know how to manage my international visa documents. Required a long process and 4 people to finally be able to proceed to security. They told us incorrect information several times before acknowledging we did indeed have everything we needed from the start.

Everything you need to know for your flight from Seattle to Charleston

Information on your arrival and departure airports