Cheap Flights from Charleston (CHS) to Seattle (LKE)

Popular airlines from Charleston Intl. Airport (CHS) to Seattle, WA (LKE-Lake Union Seaplane Base)

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $460
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $460
Flights from Charleston (CHS) to Seattle (LKE)
Origin airport
Charleston Intl.
Destination airport
Lake Union Seaplane Base
Distance
2414 mi

Charleston to Seattle Flights

The cheapest times to fly from Charleston to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Charleston to Seattle are during the month of . You can find some of the cheapest flights from Charleston to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Charleston to Seattle

Sunday is one of the best days to book for cheap flights from Charleston to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Charleston to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Charleston to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Charleston to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Charleston to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE) cost?
Snag a cheap one-way flight or cheap return flight from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE)?
is the least expensive month to fly from CHS to LKE. Traveling during an off-peak travel window is often the key to better flight prices.
What is the cheapest airline that flies from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from CHS to LKE. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE)?
There aren't any daily direct flights available from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from CHS to LKE?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a range of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE)?
Opt for a flight from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from Charleston Intl. Airport (CHS)?
Explore your flight options from Charleston Intl. Airport (CHS) to Seattle - Tacoma Intl. Airport (SEA). This is the only Seattle airport you can fly into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE) last-minute?
Holding off until right before your break to book a flight from CHS to LKE generally means paying more. While you might find some last-minute discounts, they're not always guaranteed. Keep your travel schedule open to maximize your chances of snagging a bargain.
Is it cheaper to book a CHS to LKE flight and hotel package?
Compared with arranging hotels and flights separately, booking a CHS to LKE flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the hassle out of travel planning. Simply secure your flights and select from our extensive range of hotels, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Charleston Intl. Airport (CHS) to Lake Union Seaplane Base Airport (LKE)?
It's generally possible to cancel or reschedule your CHS to LKE flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.