Cheap flights from Charleston to Seattle from $104
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Charleston to Seattle departing on 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Charleston to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
In general, January is the cheapest month to fly from Charleston to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $307. If you don’t want to visit Seattle in January, then you should wait until September to fly from Charleston, when ticket prices are also cheap, with an average price of $346.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Charleston is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $456. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Charleston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $523.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Charleston at noon is the least expensive time of day to depart. momondo users have found prices as low as $361 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $480. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Charleston to Seattle/Tacoma Intl flight route?
Fly from Charleston to Seattle/Tacoma Intl for the best Charleston - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Charleston when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $404 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Charleston for as low as $318 on momondo.
What cabin class options are available on Charleston to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on Charleston to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Charleston to Seattle/Tacoma Intl?
American Airlines, Southwest, and Hawaiian Airlines are the most popular carriers operating from Charleston to Seattle/Tacoma Intl
What airlines fly to Seattle?
American Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Seattle from Charleston according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Charleston to Seattle on average per week?
As of June 2025, 2 flights take off from Charleston and land in Seattle each week. The most common flight departure day for this route is Thu, with 100% of weekly flights taking off on this day.
When to book flights from Charleston to Seattle
Cheap Charleston to Seattle (CHS to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Charleston to Seattle
How far is Charleston to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 2422.1 mi away from Charleston. 5h 46m is a normal flight duration for this route.
When did momondo last update prices for flights from Charleston Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Charleston Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Charleston Airport to Seattle/Tacoma Intl Airport?
As of June 2025, there are 6 operators available to choose from for flights from Charleston Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Charleston Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Charleston Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Charleston to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Charleston to Seattle is Boeing 737-900 Passenger/BBJ3 (winglets) (43.41% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (42.93%), Boeing 737-800 Passenger/BBJ2 (winglets) (5.85%), and Boeing 737 (4.39%).
What is the most popular airline from Charleston to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Charleston to Seattle is Alaska Airlines (55% of total bookings). The next most popular airlines are American Airlines (21%), Delta (10%), and United Airlines (7%).
Best airlines flying from Charleston to Seattle
Compare and see reviews for airlines that fly from Charleston to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $128 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $236 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $279 | Free Cancellation | Rating 7.8 2,494 reviews | |||
| PriceFrom $351 | Free Cancellation | Rating 8.0 4,287 reviews |
Alaska Airlines Flights From Charleston to Seattle
The lowest priced Alaska Airlines flight from Charleston to Seattle from the last 72 hours was $236. Generally, Alaska Airlines has 1 flight on this route every week with an average price of $433. Alaska Airlines is rated 8.0/10 by our users.
Hawaiian Airlines Flights From Charleston to Seattle
Across 2,494 Hawaiian Airlines reviews on momondo, the average score is 7.8/10. Hawaiian Airlines flies from Charleston to Seattle about 1 time each week, with ticket deals ranging from $279 to $432. Price data is based on momondo searches in the last 72 hours.
Traveling to a place near Seattle?
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Why should I use momondo to find a flight deal from Charleston to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Charleston to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Charleston to Seattle with flexible booking policies on momondo?
Flights from Charleston to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Charleston to Seattle?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Charleston to Seattle.
I’m not ready to book a flight from Charleston to Seattle right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Charleston and alert you when they change.