$119+ Cheap flights from Charleston to Seattle (CHS - SEA)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SEA
Jul 7 — Jul 141
Round-trip
1 adult, Economy
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Find cheap flights from Charleston to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Charleston to Seattle/Tacoma Intl are usually found in February or October, booked 82 days in advance, depart on a Thursday or Wednesday and return on a Saturday
Cheap flight deals from Charleston to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Charleston to SeattleExplore the most affordable flight options available from Charleston to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 7, 2026.
Explore the most affordable flight options available from Charleston to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 7, 2026.
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:45 pm
CHS
- SEA
1 stop8h 12m
Delta
Tue 8/257:16 am
SEA
- CHS
1 stop8h 35m
Delta
Deal found 6/3![Delta logo]()
$296
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1111:18 am
CHS
- SEA
1 stop11h 18m
United Airlines
Tue 6/1610:40 pm
SEA
- CHS
1 stop8h 55m
United Airlines
Deal found 6/4![United Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:53 pm
CHS
- SEA
1 stop8h 04m
American Airlines
Tue 9/226:40 am
SEA
- CHS
1 stop7h 10m
American Airlines
Deal found 6/2![American Airlines logo]()
$298
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:30 pm
CHS
- SEA
1 stop9h 34m
United Airlines
Tue 8/255:00 am
SEA
- CHS
1 stop7h 28m
United Airlines
Deal found 6/3![United Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
CHS
- SEA
2 stops11h 39m
United Airlines
Thu 8/2711:03 am
SEA
- CHS
1 stop7h 32m
United Airlines
Deal found 6/4![United Airlines logo]()
$301
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:45 am
CHS
- SEA
2 stops10h 25m
Southwest
Thu 8/2710:30 pm
SEA
- CHS
1 stop9h 20m
Southwest
Deal found 6/4![Southwest logo]()
$304
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:19 am
CHS
- SEA
2 stops11h 48m
United Airlines
Mon 8/2411:04 pm
SEA
- CHS
1 stop7h 59m
United Airlines
Deal found 6/3![United Airlines logo]()
$305
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:00 am
CHS
- SEA
1 stop8h 40m
Southwest
Sat 7/115:00 am
SEA
- CHS
2 stops10h 50m
Southwest
Deal found 6/6![Southwest logo]()
$307
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:45 pm
CHS
- SEA
2 stops9h 25m
Southwest
Wed 7/299:25 pm
SEA
- CHS
1 stop9h 30m
Southwest
Deal found 6/6![Southwest logo]()
$310
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:15 pm
CHS
- SEA
1 stop7h 55m
Southwest
Mon 8/2411:00 pm
SEA
- CHS
1 stop10h 50m
Southwest
Deal found 6/3![Southwest logo]()
$311
Best flights from Charleston to SeattleDiscover carefully curated flight deals from Charleston to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 7, 2026.
Discover carefully curated flight deals from Charleston to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 7, 2026.
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:45 pm
CHS
- SEA
2 stops9h 25m
Southwest
Wed 7/299:25 pm
SEA
- CHS
1 stop9h 30m
Southwest
Deal found 6/6![Southwest logo]()
$310
This Delta deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:00 pm
CHS
- SEA
1 stop8h 23m
Delta
Fri 8/289:10 am
SEA
- CHS
1 stop9h 57m
Delta
Deal found 6/2![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/282:54 pm
CHS
- SEA
2 stops11h 10m
United Airlines
Sun 9/2711:04 pm
SEA
- CHS
1 stop7h 58m
United Airlines
Deal found 6/2![United Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:00 am
CHS
- SEA
1 stop11h 50m
Delta
Sat 9/511:18 am
SEA
- CHS
1 stop8h 06m
Delta
Deal found 6/6![Delta logo]()
$343
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:40 pm
CHS
- SEA
1 stop8h 30m
Southwest
Mon 8/311:05 pm
SEA
- CHS
2 stops10h 45m
Southwest
Deal found 6/5![Southwest logo]()
$361
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:54 pm
CHS
- SEA
1 stop8h 24m
United Airlines
Sat 9/55:20 pm
SEA
- CHS
2 stops14h 16m
United Airlines
Deal found 6/6![United Airlines logo]()
$413
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:10 am
CHS
- SEA
2 stops12h 20m
Southwest
Mon 8/245:00 am
SEA
- CHS
2 stops9h 25m
Southwest
Deal found 6/4![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:40 pm
CHS
- SEA
1 stop8h 30m
Southwest
Mon 7/207:30 pm
SEA
- CHS
2 stops11h 40m
Southwest
Deal found 6/6![Southwest logo]()
$408
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:00 am
CHS
- SEA
1 stop14h 45m
Southwest
Thu 7/99:25 pm
SEA
- CHS
1 stop9h 30m
Southwest
Deal found 6/6![Southwest logo]()
$412
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/244:50 pm
CHS
- SEA
1 stop9h 40m
Southwest
Mon 6/2910:45 pm
SEA
- CHS
1 stop11h 25m
Southwest
Deal found 6/3![Southwest logo]()
$421
Last-minute flights from Charleston to SeattleDiscover last-minute flight deals from Charleston to Seattle. Data last updated June 7, 2026 and is based on user searches.
Discover last-minute flight deals from Charleston to Seattle. Data last updated June 7, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1111:18 am
CHS
- SEA
1 stop11h 18m
United Airlines
Tue 6/1610:40 pm
SEA
- CHS
1 stop8h 55m
United Airlines
Deal found 6/4![United Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/165:10 am
CHS
- SEA
1 stop7h 50m
Delta
Tue 6/307:20 am
SEA
- CHS
1 stop8h 39m
Delta
Deal found 6/6![Delta logo]()
$328
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:00 am
CHS
- SEA
1 stop8h 40m
Southwest
Sat 7/115:00 am
SEA
- CHS
2 stops10h 50m
Southwest
Deal found 6/6![Southwest logo]()
$307
This American Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:53 pm
CHS
- SEA
1 stop8h 04m
American Airlines
Tue 9/226:40 am
SEA
- CHS
1 stop7h 10m
American Airlines
Deal found 6/2![American Airlines logo]()
$298
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:15 pm
CHS
- SEA
1 stop7h 55m
Southwest
Mon 7/207:30 pm
SEA
- CHS
2 stops11h 40m
Southwest
Deal found 6/3![Southwest logo]()
$316
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:15 pm
CHS
- SEA
1 stop7h 55m
Southwest
Thu 7/239:25 pm
SEA
- CHS
1 stop9h 30m
Southwest
Deal found 6/4![Southwest logo]()
$326
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:15 pm
CHS
- SEA
1 stop7h 55m
Southwest
Sat 7/256:15 am
SEA
- CHS
1 stop7h 10m
Southwest
Deal found 6/5![Southwest logo]()
$327
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:40 pm
CHS
- SEA
1 stop8h 30m
Southwest
Wed 7/299:25 pm
SEA
- CHS
1 stop9h 30m
Southwest
Deal found 6/6![Southwest logo]()
$305
One-way flights from Charleston to SeattleSearch for one-way flight options from Charleston to Seattle. Find affordable one-way fares based on user searches. Data last updated June 7, 2026.
Search for one-way flight options from Charleston to Seattle. Find affordable one-way fares based on user searches. Data last updated June 7, 2026.
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:50 pm
CHS
- SEA
1 stop9h 45m
Southwest
Deal found 6/2![Southwest logo]()
$119
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/213:34 pm
CHS
- SEA
1 stop11h 10m
United Airlines
Deal found 6/5![United Airlines logo]()
$124
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:10 am
CHS
- SEA
1 stop7h 39m
Delta
Deal found 6/4![Delta logo]()
$129
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:34 pm
CHS
- SEA
1 stop11h 10m
United Airlines
Deal found 6/5![United Airlines logo]()
$149
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:35 am
CHS
- SEA
2 stops16h 40m
Southwest
Deal found 6/4![Southwest logo]()
$153
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:33 pm
CHS
- SEA
1 stop10h 10m
United Airlines
Deal found 6/5![United Airlines logo]()
$155
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:00 am
CHS
- SEA
1 stop7h 47m
American Airlines
Deal found 6/4![American Airlines logo]()
$160
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/117:12 pm
CHS
- SEA
1 stop8h 45m
American Airlines
Deal found 6/4![American Airlines logo]()
$164
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2511:31 am
CHS
- SEA
1 stop10h 35m
United Airlines
Deal found 6/4![United Airlines logo]()
$168
This American Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/145:00 am
CHS
- SEA
1 stop7h 50m
American Airlines
Deal found 6/3![American Airlines logo]()
$173
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:45 pm
CHS
- SEA
2 stops9h 25m
Southwest
Deal found 6/2![Southwest logo]()
$178
This American Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:51 am
CHS
- SEA
1 stop8h 19m
American Airlines
Deal found 6/3![American Airlines logo]()
$180
Find flight deals from Charleston to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Charleston (CHS) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $296 (Delta) |
One-way from | $119 (Southwest) |
Popular in | March |
Cheapest in | February |
Average price | $466 |
Good round-trip deal | $392 or less |
Good one-way deal | $293 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Charleston to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 7, 2026.
Use the filters below to find and compare flights from Charleston to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Mon 7/20
4:45 pm-11:10 pm
2 stops9h 25m
Seattle/Tacoma Intl
Wed 7/29
9:25 pm-9:55 am
1 stop9h 30m
$310
Quickest round-trip
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Sat 8/15
3:00 pm-8:23 pm
1 stop8h 23m
Seattle/Tacoma Intl
Fri 8/28
9:10 am-10:07 pm
1 stop9h 57m
$336
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Mon 8/31
6:00 am-2:50 pm
1 stop11h 50m
Seattle/Tacoma Intl
Sat 9/5
11:18 am-10:24 pm
1 stop8h 06m
$343
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Fri 8/28
2:54 pm-11:04 pm
2 stops11h 10m
Seattle/Tacoma Intl
Sun 9/27
11:04 pm-10:02 am
1 stop7h 58m
$352
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Fri 7/31
5:40 pm-11:10 pm
1 stop8h 30m
Seattle/Tacoma Intl
Mon 8/3
11:05 pm-12:50 pm
2 stops10h 45m
$361
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Tue 8/11
8:10 am-5:30 pm
2 stops12h 20m
Seattle/Tacoma Intl
Mon 8/24
5:00 am-5:25 pm
2 stops9h 25m
$377
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Fri 7/17
5:40 pm-11:10 pm
1 stop8h 30m
Seattle/Tacoma Intl
Mon 7/20
7:30 pm-10:10 am
2 stops11h 40m
$408
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Thu 7/2
8:00 am-7:45 pm
1 stop14h 45m
Seattle/Tacoma Intl
Thu 7/9
9:25 pm-9:55 am
1 stop9h 30m
$412
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Mon 8/31
2:54 pm-8:18 pm
1 stop8h 24m
Seattle/Tacoma Intl
Sat 9/5
5:20 pm-10:36 am
2 stops14h 16m
$413
CharlestonSeattle
CHS - SEA
CHSSEA
Charleston
Wed 6/24
4:50 pm-11:30 pm
1 stop9h 40m
Seattle/Tacoma Intl
Mon 6/29
10:45 pm-1:10 pm
1 stop11h 25m
$421
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Charleston to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Charleston to Seattle in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Charleston-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Charleston-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Charleston-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Charleston-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Charleston-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Charleston to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Charleston with our price prediction graph.
CHS-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Charleston to Seattle
Prices
More
How far ahead should I book a flight from Charleston to Seattle?
The price you pay for your flight from Charleston to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Charleston to Seattle?
Currently, February is the cheapest month in which you can book a flight from Charleston to Seattle (average of $257). Flying from Charleston to Seattle in March is currently the most expensive (average of $480). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHS to SEA?
Find hourly flight availability from Charleston to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 7, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Charleston to Seattle as you normally would.
What’s the top layover airport for flights from Charleston to Seattle?
Share of 1-stop round-trip flights from Charleston to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 89% of 1-stop itineraries from Charleston to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from Charleston to Seattle?
Average round-trip fare for 1-stop flights from Charleston to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Washington, D.C. (IAD) is the most affordable 1-stop option, with an average round-trip price of $515.
What’s the fastest layover option from Charleston to Seattle?
Shortest average travel time for 1-stop one-way flights from Charleston to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Washington, D.C. (IAD) have the shortest average one-way travel time for 1-stop routes: 8h 12m.
Which airport typically offers the quickest layover for flights from Charleston to Seattle?
Average layover duration for 1-stop one-way flights from Charleston to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average layover time of 1h 08m.
The best insider tips for Charleston to Seattle flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Charleston to Seattle trip
Our travel experts
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated June 7, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Charleston to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Charleston to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline
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Charleston and Seattle flights
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Top 6 airlines flying from Charleston to Seattle
Discover the top 6 airlines that operate flights from Charleston to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$149 | Average$337 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$178 | Average$354 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$196 | Average$379 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$217 | Average$381 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$225 | Average$446 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$238 | Average$373 | FlexibilityNo cancel fee | On-time69% |