Cheap Flights from Charleston to Seattle / Tacoma International

Compare Charleston to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Charleston to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best round-trip flight from Charleston Airport to Seattle / Tacoma International Airport? If you want to travel next month, round-trip fares start from AED 1,199. Find the lowest prices on one-way and round-trip tickets right here.

Seattle.AED 393 per passenger.Departing Tue, Jul 21.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Charleston on Tue, Jul 21, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 393, select.

Seattle.AED 400 per passenger.Departing Tue, Feb 2.One-way flight with United.Outbound indirect flight with United, departing from Charleston on Tue, Feb 2, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 400, select.

Seattle.AED 427 per passenger.Departing Tue, Jun 2.One-way flight with Delta.Outbound indirect flight with Delta, departing from Charleston on Tue, Jun 2, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 427, select.

Seattle.AED 429 per passenger.Departing Sat, Sep 26.One-way flight with Delta.Outbound indirect flight with Delta, departing from Charleston on Sat, Sep 26, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 429, select.

Seattle.AED 431 per passenger.Departing Mon, Aug 31.One-way flight with Delta.Outbound indirect flight with Delta, departing from Charleston on Mon, Aug 31, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 431, select.

Seattle.AED 480 per passenger.Departing Thu, May 28.One-way flight with United.Outbound indirect flight with United, departing from Charleston on Thu, May 28, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 480, select.

Seattle.AED 738 per passenger.Departing Sat, Sep 12.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Charleston on Sat, Sep 12, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 738, select.

Seattle.AED 738 per passenger.Departing Tue, Jun 9.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Charleston on Tue, Jun 9, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 738, select.

Seattle.AED 748 per passenger.Departing Mon, Aug 31.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Charleston on Mon, Aug 31, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 748, select.

Seattle.AED 799 per passenger.Departing Tue, Dec 22.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Charleston on Tue, Dec 22, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 799, select.

Seattle.AED 902 per passenger.Departing Tue, Jul 21.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Charleston on Tue, Jul 21, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 902, select.

Seattle.AED 983 per passenger.Departing Thu, May 28.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Charleston on Thu, May 28, arriving in Seattle / Tacoma International.Price includes taxes and charges.From AED 983, select.

Find the cheapest month to fly from Charleston to Seattle / Tacoma International

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

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Direct flights from Charleston to Seattle / Tacoma International

Charleston to Seattle / Tacoma International: Alternative routes

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

Charleston to Seattle: Flight information

The things to know before you go.

Cheapest flight found	AED 393
Cheapest month to fly	July
Average flight time	5 hrs, 58 mins
Most popular airline	Alaska Airlines
Average flights per week	9

Finding cheap flights from Charleston to Seattle / Tacoma International: Frequently asked questions

How much are round-trip flights from Charleston to Seattle / Tacoma International?

The best price we found for a round-trip flight from Charleston to Seattle / Tacoma International is AED 837. 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.

How long does it take to fly from Charleston to Seattle / Tacoma International?

5 hours and 58 minutes is the average flight time from Charleston to Seattle / Tacoma International.

Which airlines fly direct from Charleston to Seattle / Tacoma International?

Alaska Airlines flies direct from Charleston to Seattle / Tacoma International.

How many flights are there a week from Charleston to Seattle / Tacoma International?

There are 9 flights per week flying from Charleston to Seattle / Tacoma International, as of May 2026.

When is the cheapest time to fly from Charleston to Seattle / Tacoma International?

The cheapest month to fly from Charleston to Seattle / Tacoma International is usually July.

Which upcoming date is cheapest to fly from Charleston Airport to Seattle / Tacoma International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Charleston Airport to Seattle / Tacoma International Airport on Tuesday, July 21, 2026.

Can I get a direct flight from Charleston Airport to Seattle / Tacoma International Airport?

Yes – the average flight time is 5 hours and 58 minutes.

How can I find the best flight deal to Seattle / Tacoma International?

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 Seattle / Tacoma International 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.

When is the best time to book flights to Seattle?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Charleston Airport to Seattle / Tacoma International?

Currently, Southwest Airlines and Alaska Airlines offer the cheapest flight tickets to Seattle / Tacoma International.

Traveling from Charleston International Airport (CHS) to Seattle-Tacoma International Airport (SEA): what you need to know

Seattle is three hours behind Charleston and is in the UTC-7 timezone.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Show up at the airport on time to catch your CHS to SEA flight.
During popular months like July, it's best to get to the airport even earlier. Arrive two hours before a domestic departure and four hours ahead for international flights whenever you're flying during a peak period in general.
Jetting into Seattle (and then exploring more of United States!) is a breeze with Alaska Airlines. This popular carrier has direct flights from Charleston International Airport to Seattle-Tacoma International Airport.
The airline with the highest booking volume on this route is Alaska Airlines.
Alaska Airlines is a leader in on-time performance for CHS to SEA flights, with 81.82% of services arriving on schedule.
If you'd like to break up your flight, simply uncheck 'Direct flights only' when searching for your ticket from Charleston International Airport to Seattle-Tacoma International Airport. Here are the most popular stopovers between CHS and SEA:
- Hartsfield-Jackson Atlanta International Airport
- Lambert-St. Louis International Airport
- Minneapolis-St. Paul International Airport

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

Currently, AED 392 is the lowest price we've found for a one-way Charleston International Airport to Seattle-Tacoma International Airport flight. The best price for a return ticket is AED 837. Bear in mind that fares could change due to demand at the time of booking.
It's often best to book in advance if you want to find cheap tickets from CHS to SEA. That's because airlines adjust prices based on demand, which tends to rise closer to departure.
Finding cheap flights from Charleston International Airport to Seattle-Tacoma International Airport is more likely if you can be flexible with your dates. Use the 'Whole month' tool to see the lowest prices across every month and bag a great deal.
Save time searching for cheap flights from CHS to SEA by setting up a Price Alert. You'll get an email or push notification on the app when a new low fare is offered.
Tailor your trip with filters. Pick your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Charleston International Airport to Seattle-Tacoma International Airport.

Handy information about Charleston International Airport (CHS)

Charleston International Airport scores high marks for on-time performance. 81.5% of flights that take off from CHS reach their destination without delay.
Charleston International Airport is about 21 kilometers from central Charleston. If you're ride-sharing, catching a cab or driving from the center, it'll take you 30 minutes or so to arrive, depending on the traffic.
You can expect a journey time of around 3 hours 35 minutes when using public transport.
Taking an early flight from Charleston International Airport to Seattle-Tacoma International Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by picking one of these hotels close to CHS:

Arriving at Seattle-Tacoma International Airport (SEA)

The last thing you want is a long journey to your hotel if you're landing late on a Charleston International Airport to Seattle-Tacoma International Airport flight. Stay at one of these accommodation options near SEA instead:
Pick up a Seattle-Tacoma International Airport rental car and discover Seattle and beyond with your own wheels. Thrifty, Europcar and Budget are popular outlets you can book with here.
Booking your vehicle from Seattle-Tacoma International Airport around one week ahead can help you secure the lowest rate.

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

Seattle-Tacoma International Airport to central Seattle has a drive time of about 20 minutes. It's approximately 23 kilometers away.
It takes around 55 minutes if you're traveling on public transport.

When to fly to Seattle-Tacoma International Airport (SEA)

The quietest month for a flight from Charleston International Airport to Seattle-Tacoma International Airport is May, while July is the busiest. Pick the ideal time to go to Seattle based on whether you prefer a bustling atmosphere or a more laid-back vibe.
When booking your flight from Charleston International Airport to Seattle-Tacoma International Airport, consider the type of weather you enjoy. August is the warmest month in Seattle, with the temperature ranging from 12ºC (54ºF) to 28ºC (82ºF).
Look for cheap tickets from CHS to SEA in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -1ºC (30ºF) and 11ºC (52ºF) on average.

Explore more of United States

Seattle has plenty going for it, but there are so many other parts of United States just waiting to be discovered. About 241 kilometers south of Seattle, a visit to Portland will keep your itinerary busy. Check out popular attractions like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.
Around 370 kilometers east of Seattle, Spokane is another essential stop in United States. Experience major highlights starting with Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.