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Flights from Charleston to Seattle

Flight Info | Charleston to Seattle

The distance between Charleston and Seattle is approximately 3,878.4 km. It takes around 6 hours 54 minutes on average to fly from Charleston to Seattle. Based on Trip.com's data, travel demand peaks in July.

Cheapest one-way
$106
Delta Air Lines Delta Air Lines CHS-SEA 7h 39m · 1 stop Sat, Aug 15
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Cheapest round-trip
$238
United Airlines United Airlines CHS-SEA 9h 46m · 2 stops Thu, Sep 24 - Sun, Sep 27
Select flight
Recommended airlines
Delta Air Lines Delta Air Lines Cheapest · From $106 American Airlines American Airlines Most booked
When to travel
October
Cheapest
July
Peak season for travel
Route details
3,878.4 km
Flight distance
6h 54m
Average flight time

Book direct flights from Charleston to Seattle: One way flights from $205, round trip flights from $340. Find flight deals for the next 3 months below.

      • Cheapest nonstop
        CHS 7:09 PM
        5h 51m
        Nonstop
        SEA 10:00 PM
        Charleston - Seattle | Tue, Sep 22 | Alaska Airlines
        SEA 9:39 AM
        5h 27m
        Nonstop
        CHS 6:06 PM
        Seattle - Charleston | Sun, Sep 27 | Alaska Airlines
        $340 $466
        27% off
        27% off
        $466 $340
      • CHS 7:08 PM
        5h 51m
        Nonstop
        SEA 9:59 PM
        Charleston - Seattle | Thu, Aug 20 | Alaska Airlines
        SEA 9:45 AM
        5h 20m
        Nonstop
        CHS 6:05 PM
        Seattle - Charleston | Sun, Aug 23 | Alaska Airlines
        $340 $466
        27% off
        27% off
        $466 $340
      • CHS 4:13 PM
        9h 46m
        1 stop
        SEA 10:59 PM
        Charleston - Seattle | Thu, Sep 24 | United Airlines
        SEA 11:13 PM
        8h 27m
        1 stop
        CHS 10:40 AM
        Seattle - Charleston | Sun, Sep 27 | United Airlines
        $238 $466
        49% off
        49% off
        $466 $238
      • CHS 11:37 AM
        10h 38m
        1 stop
        SEA 7:15 PM
        Charleston - Seattle | Tue, Sep 22 | United Airlines
        SEA 11:13 PM
        8h 27m
        1 stop
        CHS 10:40 AM
        Seattle - Charleston | Sun, Sep 27 | United Airlines
        $239
        49% off
        $466 $239
      • CHS 6:41 PM
        8h 16m
        1 stop
        SEA 11:57 PM
        Charleston - Seattle | Sat, Aug 29 | Delta Air Lines
        SEA 9:53 AM
        9h 31m
        1 stop
        CHS 10:24 PM
        Seattle - Charleston | Sat, Sep 5 | Delta Air Lines
        $253
        46% off
        $466 $253
      • CHS 5:27 PM
        9h 28m
        1 stop
        SEA 11:55 PM
        Charleston - Seattle | Tue, Sep 22 | Delta Air Lines
        SEA 1:11 PM
        7h 51m
        1 stop
        CHS 12:02 AM
        Seattle - Charleston | Sun, Sep 27 | American Airlines
        $260
        44% off
        $466 $260
      • CHS 7:10 PM
        7h 42m
        1 stop
        SEA 11:52 PM
        Charleston - Seattle | Fri, Oct 9 | Delta Air Lines
        SEA 11:59 PM
        7h 11m
        1 stop
        CHS 10:10 AM
        Seattle - Charleston | Mon, Oct 12 | Delta Air Lines
        $276
        41% off
        $466 $276
      • CHS 5:33 PM
        9h 26m
        1 stop
        SEA 11:59 PM
        Charleston - Seattle | Thu, Sep 24 | Delta Air Lines
        SEA 11:59 PM
        9h 32m
        1 stop
        CHS 12:31 PM
        Seattle - Charleston | Sun, Sep 27 | American Airlines
        $279
        40% off
        $466 $279
      • CHS 4:06 PM
        8h 53m
        1 stop
        SEA 9:59 PM
        Charleston - Seattle | Tue, Aug 25 | American Airlines
        SEA 5:15 AM
        9h 35m
        1 stop
        CHS 5:50 PM
        Seattle - Charleston | Sun, Aug 30 | American Airlines
        $279
        40% off
        $466 $279
      • CHS 12:47 PM
        10h 33m
        1 stop
        SEA 8:20 PM
        Charleston - Seattle | Tue, Aug 25 | Delta Air Lines
        SEA 11:11 PM
        10h 29m
        1 stop
        CHS 12:40 PM
        Seattle - Charleston | Sun, Aug 30 | American Airlines
        $283
        39% off
        $466 $283
      • CHS 3:41 PM
        10h 28m
        1 stop
        SEA 11:09 PM
        Charleston - Seattle | Thu, Sep 24 | American Airlines
        SEA 11:59 PM
        9h 32m
        1 stop
        CHS 12:31 PM
        Seattle - Charleston | Sun, Sep 27 | American Airlines
        $285
        39% off
        $466 $285
      • CHS 6:20 AM
        8h 5m
        1 stop
        SEA 11:25 AM
        Charleston - Seattle | Tue, Sep 22 | American Airlines
        SEA 1:11 PM
        7h 51m
        1 stop
        CHS 12:02 AM
        Seattle - Charleston | Sun, Sep 27 | American Airlines
        $310
        33% off
        $466 $310
      • CHS 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Charleston - Seattle | Sat, Aug 15 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        CHS 4:00 PM
        Seattle - Charleston | Mon, Aug 17 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        CHS 6:37 PM
        5h 51m
        Nonstop
        SEA 9:28 PM
        Charleston - Seattle | Mon, Aug 31 | Alaska Airlines
        $205 $281
        27% off
        27% off
        $281 $205
      • CHS 5:10 AM
        7h 39m
        1 stop
        SEA 9:49 AM
        Charleston - Seattle | Sat, Aug 15 | Delta Air Lines
        $106 $281
        62% off
        62% off
        $281 $106
      • CHS 5:34 PM
        9h 21m
        1 stop
        SEA 11:55 PM
        Charleston - Seattle | Fri, Sep 11 | Delta Air Lines
        $118 $281
        57% off
        57% off
        $281 $118
      • CHS 5:35 PM
        9h 23m
        1 stop
        SEA 11:58 PM
        Charleston - Seattle | Wed, Sep 16 | Delta Air Lines
        $120
        56% off
        $281 $120
      • CHS 2:06 PM
        10h 30m
        1 stop
        SEA 9:36 PM
        Charleston - Seattle | Wed, Sep 16 | American Airlines
        $124
        56% off
        $281 $124
      • CHS 6:00 AM
        11h 50m
        1 stop
        SEA 2:50 PM
        Charleston - Seattle | Wed, Sep 2 | Delta Air Lines
        $124
        56% off
        $281 $124
      • CHS 6:00 AM
        11h 50m
        1 stop
        SEA 2:50 PM
        Charleston - Seattle | Thu, Sep 3 | Delta Air Lines
        $129
        54% off
        $281 $129
      • CHS 2:06 PM
        10h 30m
        1 stop
        SEA 9:36 PM
        Charleston - Seattle | Fri, Sep 11 | American Airlines
        $129
        54% off
        $281 $129
      • CHS 7:00 AM
        10h 45m
        1 stop
        SEA 2:45 PM
        Charleston - Seattle | Thu, Sep 3 | American Airlines
        $130
        54% off
        $281 $130
      • CHS 7:18 AM
        10h 33m
        1 stop
        SEA 2:51 PM
        Charleston - Seattle | Mon, Sep 14 | American Airlines
        $134
        52% off
        $281 $134
      • CHS 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Charleston - Seattle | Sat, Aug 15 | Normal Airline
        Find more flights
        Find more flights

Popular airlines from Charleston to Seattle

You can choose from 2 airlines that fly from Charleston to Seattle, including American Airlines, Alaska Airlines, Delta Air Lines has lowest fares on this route.
American Airlines logo American Airlines
Alaska Airlines logo Alaska Airlines
Airlines are determined based on actual purchased flight tickets from Charleston to Seattle according to previous 12 months data from Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Charleston to Seattle (CHS-SEA)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as $106 on Cheapest nonstop routes (e.g. CHS to SEA on Sat, Aug 15), while United Airlines offers Cheapest nonstop round-trips from $238 departing on Thu, Sep 24 and returning on Sun, Sep 27.
  • At the moment, you can catch a nonstop flight from Charleston to Seattle with the following airlines, including: Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 6 hours 54 minutes to fly from Charleston (CHS) to Seattle (SEA).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Charleston to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 8 flight per week flying from Charleston to Seattle. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS787 (18:10)
  • To find best deals on flights from Charleston to Seattle, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Aug 15, with one-way flights priced at just $106.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Charleston to Seattle is October, when demand for travel is lower.
  • After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Charleston to Seattle on August 20, 2026 with Delta Air Lines, with prices starting at $113.
  • You can land at any one of the following hubs in Seattle, with Charleston International Airport to Seattle-Tacoma International Airport (CHS-SEA) is by far the most common option on this route: Seattle-Tacoma International Airport (SEA) King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE).
  • The time difference between Seattle and Charleston is 3h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Charleston to Seattle is $226. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Charleston to Seattle is $426. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Charleston and Seattle, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.