Seattle to Charleston flights

Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Seattle to Charleston is €106 (checked on 19 Oct 2026).

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Lowest observed

€106

Average observed

€137

Cheapest month

February 2027

Last checked

26 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €106

Lowest observed

20 Feb 2027

One way

Cheapest observed day · Last checked: 19 Oct 2026

When to fly

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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.

One-way fare

One-way fare · No data: click and we will search

Lowest observed: €106, departing 20 Feb 2027 (Last checked: 19 Oct 2026)One-way fareCheck live prices for this route
Airlines seen: Alaska Airlines, Breeze Airways, Delta Air Lines, Frontier Airlines, JetBlue, Southwest Airlines, United Airlines (7)
Typical journey time: 5h 07m

Short answer

Routavio has seen Alaska Airlines fares from Seattle to Charleston. The lowest fare Routavio's own searches returned is €106, seen on 19 Oct 2026. The average across the fares we caught is €137. February 2027 is the cheapest month in our observations, at €106. These are prices Routavio's searches returned on the dates shown, not quotes; run a live search for today's fare.

About this route

Explore the fares we observed from Seattle to Charleston. Prices move often, so pick your dates to see the latest options.

Route distance: 3,900 km
Typical journey time: 5h 07m
Alternative airports: BFI

Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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The price is final on the provider's site, where your booking is completed.

How our prices work

Airport to city: straight-line distance

King County International Airport - Boeing Field (BFI) → Seattle, city gazetteer reference point (47.6062, -122.3321): ≈ 9 km.
Seattle–Tacoma International Airport (SEA) → Seattle, city gazetteer reference point (47.6062, -122.3321): ≈ 18 km.
Charleston International Airport (CHS) → Charleston, city gazetteer reference point (32.7765, -79.9311): ≈ 17 km.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.

Frequently asked

How much is a flight from Seattle to Charleston?

The lowest fare Routavio has observed is €106, found on 19 Oct 2026. Prices move, so read it as a floor rather than a quote.

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

In our observations February 2027 is the cheapest month so far, at €106.

Are there direct flights from Seattle to Charleston?

Our data holds no non-stop flight from Seattle to Charleston. The fares on this page include at least one stop.

Which airlines fly from Seattle to Charleston?

Routavio has seen these carriers on the route: Alaska Airlines, Breeze Airways, Delta Air Lines, Frontier Airlines, JetBlue, Southwest Airlines, United Airlines (7).

How long does the flight from Seattle to Charleston take?

Across the 110 fares Routavio observed, the average journey time is 7h 54m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide