Cheap flights from Seattle to Charleston

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Flight deals from Seattle to Charleston Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Charleston Airport? If you want to travel next month, return fares start from $308. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Charleston

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Charleston flights are currently cheapest in April.

Direct flights from Seattle to Charleston

Seattle to Charleston: Alternative routes

Compare routes from Seattle to Charleston below. You may find an airport to fly into that's cheaper, faster, or easier than Charleston.

Seattle to Charleston: Flight information

The things to know before you go.
Cheapest flight found$153
Cheapest month to flyApril
Average flight time5 hrs, 20 mins
Most popular airlineHawaiian Airlines
Average flights per week9

Finding cheap flights from Seattle to Charleston: Frequently asked questions

The best price we found for a return flight from Seattle to Charleston is $306. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 20 minutes is the average flight time from Seattle to Charleston.
Alaska Airlines and Hawaiian Airlines fly direct from Seattle to Charleston.
As of March 2026, there are 9 flights per week flying from Seattle to Charleston.
The cheapest month to fly from Seattle to Charleston is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Charleston Airport on Saturday, 23 May 2026.
Yes – the average flight time is 5 hours and 20 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Charleston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Charleston is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Charleston is United .

Flying from Seattle to Charleston International Airport (CHS): What you need to know

  • Your travels get underway at Seattle's main airport, Seattle-Tacoma International Airport (SEA). Check out your options for reserving a flight from Seattle to Charleston International Airport (CHS) departing from this base.

  • Around 5 hours 15 minutes is how long you can expect to be in the air on a direct Seattle to Charleston International Airport flight.

  • The timezone in Charleston is UTC-5, which is three hours ahead of Seattle. Charleston International Airport is located in Charleston.

  • You can pick from 6 direct services every week between Seattle-Tacoma International Airport (SEA) and Charleston International Airport (CHS). This is the busiest route, with Alaska Airlines offering a 8:47am departure from SEA to CHS.

  • Your flight from Seattle to CHS won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • July is a busy travel month. If you're heading away then or during a major holiday like Thanksgiving or Christmas, show up even earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Get to your destination in one go from Seattle-Tacoma International Airport (SEA). Nonstop flights from Seattle to Charleston International Airport (CHS) are available from here.

  • You'll find a direct flight from Seattle to Charleston International Airport with Alaska Airlines. This popular carrier operates departures from SEA.

  • Alaska Airlines is the most frequently chosen airline for flights from SEA to CHS.

  • With a dependable 82.69% of services arriving on schedule, Alaska Airlines ranks as the most on-time carrier flying this route.

  • SEA is about 23 kilometres from central Seattle. If you're ride-sharing, catching a taxi or driving from the centre, it'll take 25 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the trip time to be around 35 minutes.

  • In search of a convenient hotel close to Seattle-Tacoma International Airport? If you've booked an early flight from Seattle to Charleston International Airport, these stays will have you sleeping moments from your check-in counter:

  • 80% of flights departing from Seattle-Tacoma International Airport reach their destination according to schedule. With its strong performance rating, you're unlikely to face delays when setting off from SEA.

Seattle Paine Field International Airport (PAE)

  • Using public transport, you can travel from central Seattle to PAE in about 1 hour 30 minutes. The airport is roughly 40 kilometres away, and making the trip by car takes approximately 40 minutes.

  • Want to treat yourself to an extra night away before your Seattle to CHS flight? Relax in a hotel near Seattle Paine Field International Airport before your holiday officially begins. These stays are calling your name:

  • Flights from Seattle Paine Field International Airport have a strong track record for punctuality, with 80% of them arriving as planned.

About Charleston International Airport (CHS)

Getting from Charleston International Airport (CHS) to central Charleston

  • From Charleston International Airport, central Charleston is around 19 kilometres away. It takes about 25 minutes to reach the city centre by car.

  • If you're travelling by public transport, expect a journey of around 50 minutes.

How to find the cheapest flights from Seattle to Charleston International Airport (CHS)

  • At the moment, $153 is the best price we've found for a one-way ticket from Seattle to Charleston International Airport. The cheapest price for a return flight is $306. Remember fares may change due to availability at the time of booking.

  • Don't leave things to the last minute. You're more likely to walk away with cheap flights from Seattle to CHS if you book in advance. Airlines often have some amazing early bird discounts.

  • The 'Whole month' search tool shows you the cheapest Seattle to Charleston International Airport tickets throughout the month. It's an easy way to snap up a bargain if your travel plans aren't set in stone.

  • You don't need to search every day to find out if prices have dropped when you create a Price Alert. We'll let you know as soon as a new deal shows up on plane tickets from Seattle to CHS.

  • Save money on your flight from Seattle to Charleston International Airport by using filters. Choose your ideal times, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Seattle to Charleston International Airport (CHS)

  • June is the busiest month for flights from Seattle to Charleston International Airport (CHS). Visit Charleston in December for a more laid-back experience.

  • Before locking in your Seattle to CHS plane ticket, consider the weather you're most comfortable in. July is the warmest month in Charleston, with temperatures ranging from 24ºC (75ºF) to 32ºC (90ºF).

  • Look for cheap tickets from Seattle to Charleston International Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 17ºC (63ºF).

More about Charleston

  • Start your Charleston trip right by choosing the perfect place to stay. After booking your flight from Seattle to Charleston International Airport, browse our range of accommodation options including:

  • Every great adventure has to include a little sightseeing. International African American Museum, Fort Sumter National Monument and Charleston City Market are attractions you won't want to skip in Charleston.

Explore more of the United States

  • Charlotte is just one of the many cities in the United States waiting to be discovered after you've seen Charleston. Around 274 kilometres away to the north, top sights here include Bechtler Museum of Modern Art, Discovery Place and NASCAR Hall of Fame.

  • If you're ready to explore another major stop in the United States, head for Fayetteville, roughly 257 kilometres northeast of Charleston. Airborne and Special Operations Museum, Fayetteville Transportation Museum and David McCune International Art Gallery are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.