$108+ Cheap flights from Charleston to Seattle (CHS - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SEA
Nov 23 — Nov 301
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 January or February, booked 31 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday
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 October 24, 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 October 24, 2026.
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 11/117:13 am -
1 stop10h 07m
Wed 11/1811:29 pm -
1 stop8h 57m
Deal found 10/21![American Airlines logo]()
$215
This Southwest deal was found by Cheapflights users on 10/19. 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 11/127:10 pm -
1 stop8h 35m
Wed 11/186:10 am -
2 stops12h 30m
Deal found 10/19![Southwest logo]()
$220
This Southwest deal was found by Cheapflights users on 10/21. 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 11/127:10 pm -
1 stop8h 35m
Sun 11/155:30 am -
1 stop7h 20m
Deal found 10/21![Southwest logo]()
$241
This American Airlines deal was found by Cheapflights users on 10/20. 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.
Wed 12/24:19 pm -
1 stop11h 28m
Fri 12/410:52 am -
1 stop8h 15m
Deal found 10/20![American Airlines logo]()
$242
This Southwest deal was found by Cheapflights users on 10/20. 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 12/21:25 pm -
2 stops12h 25m
Fri 12/46:30 am -
1 stop7h 00m
Deal found 10/20![Southwest logo]()
$246
This Southwest deal was found by Cheapflights users on 10/20. 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 12/101:30 pm -
2 stops13h 05m
Mon 12/146:30 am -
1 stop7h 00m
Deal found 10/20![Southwest logo]()
$248
This Southwest deal was found by Cheapflights users on 10/20. 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 12/101:30 pm -
2 stops12h 20m
Tue 12/156:10 am -
2 stops12h 30m
Deal found 10/20![Southwest logo]()
$253
This American Airlines deal was found by Cheapflights users on 10/23. 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 11/227:09 am -
1 stop10h 16m
Tue 12/15:40 am -
1 stop7h 28m
Deal found 10/23![American Airlines logo]()
$256
This Southwest deal was found by Cheapflights users on 10/19. 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.
Sun 12/67:10 pm -
1 stop8h 25m
Sun 12/135:30 am -
1 stop7h 20m
Deal found 10/19![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 10/20. 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 11/1712:24 pm -
1 stop10h 54m
Wed 12/27:15 am -
1 stop10h 04m
Deal found 10/20![Delta logo]()
$270
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/232:52 pm -
1 stop9h 04m
Tue 12/86:15 am -
2 stops12h 44m
Deal found 10/20![United Airlines logo]()
$274
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 October 24, 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 October 24, 2026.
This Southwest deal was found by Cheapflights users on 10/19. 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 12/98:00 am -
1 stop7h 50m
Fri 12/115:30 am -
1 stop7h 20m
Deal found 10/19![Southwest logo]()
$279
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:23 pm -
Nonstop6h 08m
Tue 12/19:11 am -
Nonstop5h 06m
Deal found 10/22![Alaska Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/117:00 am -
2 stops14h 46m
Wed 12/167:30 pm -
2 stops12h 09m
Deal found 10/19![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 10/18. 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.
Fri 11/66:29 pm -
1 stop7h 48m
Sun 11/811:18 pm -
1 stop9h 24m
Deal found 10/18![Delta logo]()
$436
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/63:29 pm -
2 stops10h 46m
Sat 11/1410:50 am -
1 stop8h 10m
Deal found 10/18![United Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:58 pm -
Nonstop6h 01m
Tue 12/19:11 am -
Nonstop5h 06m
Deal found 10/20![Alaska Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Sun 11/2210:23 am -
2 stops15h 44m
Tue 12/15:35 pm -
2 stops14h 28m
Deal found 10/19![United Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/242:52 pm -
2 stops13h 07m
Fri 11/277:00 am -
2 stops13h 59m
Deal found 10/19![United Airlines logo]()
$512
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:58 pm -
Nonstop6h 01m
Sat 11/215:50 pm -
1 stop14h 36m
Deal found 10/23![Alaska Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/1610:23 am -
2 stops15h 44m
Fri 11/204:39 pm -
2 stops13h 34m
Deal found 10/22![United Airlines logo]()
$513
Last-minute flights from Charleston to SeattleDiscover last-minute flight deals from Charleston to Seattle. Data last updated October 24, 2026 and is based on user searches.
Discover last-minute flight deals from Charleston to Seattle. Data last updated October 24, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 11/117:13 am -
1 stop10h 07m
Wed 11/1811:29 pm -
1 stop8h 57m
Deal found 10/21![American Airlines logo]()
$215
This Southwest deal was found by Cheapflights users on 10/20. 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 11/111:30 pm -
2 stops13h 05m
Wed 11/186:30 am -
1 stop7h 00m
Deal found 10/20![Southwest logo]()
$248
This Southwest deal was found by Cheapflights users on 10/19. 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 11/127:10 pm -
1 stop8h 35m
Wed 11/186:10 am -
2 stops12h 30m
Deal found 10/19![Southwest logo]()
$220
This Southwest deal was found by Cheapflights users on 10/21. 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 11/127:10 pm -
1 stop8h 35m
Sun 11/155:30 am -
1 stop7h 20m
Deal found 10/21![Southwest logo]()
$241
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/122:52 pm -
1 stop9h 04m
Sun 11/157:04 pm -
2 stops11h 08m
Deal found 10/21![United Airlines logo]()
$288
This Southwest deal was found by Cheapflights users on 10/19. 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 11/134:30 pm -
2 stops9h 35m
Mon 11/166:30 am -
1 stop7h 00m
Deal found 10/19![Southwest logo]()
$246
This Delta deal was found by Cheapflights users on 10/20. 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 11/1712:24 pm -
1 stop10h 54m
Wed 12/27:15 am -
1 stop10h 04m
Deal found 10/20![Delta logo]()
$270
This American Airlines deal was found by Cheapflights users on 10/23. 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 11/227:09 am -
1 stop10h 16m
Tue 12/15:40 am -
1 stop7h 28m
Deal found 10/23![American Airlines logo]()
$256
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/232:52 pm -
1 stop9h 04m
Tue 12/86:15 am -
2 stops12h 44m
Deal found 10/20![United Airlines logo]()
$274
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 October 24, 2026.
Search for one-way flight options from Charleston to Seattle. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 12/107:15 am -
1 stop10h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![American Airlines logo]()
$108
This Southwest deal was found by Cheapflights users on 10/19. 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 11/111:30 pm -
2 stops13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Southwest logo]()
$113
This Southwest deal was found by Cheapflights users on 10/22. 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 12/101:30 pm -
2 stops12h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Southwest logo]()
$129
This Southwest deal was found by Cheapflights users on 10/21. 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.
Sun 12/67:10 pm -
1 stop8h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Southwest logo]()
$134
This Delta deal was found by Cheapflights users on 10/20. 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.
Fri 1/812:52 pm -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Delta logo]()
$135
This Southwest deal was found by Cheapflights users on 10/20. 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 1/81:25 pm -
2 stops12h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$139
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/106:00 am -
2 stops13h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$140
This Southwest deal was found by Cheapflights users on 10/18. 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 11/101:30 pm -
2 stops13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Southwest logo]()
$141
This Delta deal was found by Cheapflights users on 10/21. 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.
Sun 1/1712:52 pm -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Delta logo]()
$149
This Southwest deal was found by Cheapflights users on 10/20. 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 11/97:10 pm -
1 stop8h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$162
This Delta deal was found by Cheapflights users on 10/19. 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 11/104:17 pm -
1 stop10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Delta logo]()
$163
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/92:52 pm -
2 stops13h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$168
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 October 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $215 (American Airlines) |
One-way from | $108 (American Airlines) |
Popular in | July |
Cheapest in | January |
Average price | $347 |
Good round-trip deal | $483 or less |
Good one-way deal | $321 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 7,457,451 searches. Data last updated October 24, 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 Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Tue 11/10
1:30 pm-11:35 pm
2 stops13h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$113
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Thu 12/10
1:30 pm-10:50 pm
2 stops12h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$129
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Sun 12/6
7:10 pm-12:35 am
1 stop8h 25m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$134
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Thu 12/10
6:00 am-4:22 pm
2 stops13h 22m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$140
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Sat 12/5
6:00 am-4:23 pm
2 stops13h 23m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$168
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Fri 1/15
6:22 pm-9:34 pm
Nonstop6h 12m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$229
Quickest round-trip
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Fri 11/13
5:58 pm-8:59 pm
Nonstop6h 01m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$229
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Sat 1/16
6:00 am-9:02 pm
3 stops18h 02m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$239
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Wed 12/9
8:00 am-12:50 pm
1 stop7h 50m
Seattle/Tacoma Intl
Fri 12/11
5:30 am-3:50 pm
1 stop7h 20m
$279
CharlestonSeattle
CHS Charleston - SEA Seattle/Tacoma Intl
CHSSEA
Charleston
Sun 11/22
6:23 pm-9:31 pm
Nonstop6h 08m
Seattle/Tacoma Intl
Tue 12/1
9:11 am-5:17 pm
Nonstop5h 06m
$397
Showing 1-10 of 18 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 October.
| 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 |
- 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 30 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, January is the cheapest month in which you can book a flight from Charleston to Seattle (average of $257). Flying from Charleston to Seattle in July is currently the most expensive (average of $500). 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 October 24, 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
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Cheapflights partnered with top experts to bring you the best recommendations for your Charleston to Seattle trip
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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 October 24, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, andDelta 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.
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Crew
8.5
Food
7.0
Overall
7.9
Entertainment
7.0
Comfort
7.8
Boarding
8.1
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?
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Charleston and Seattle flights
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Top 5 airlines flying from Charleston to Seattle
Discover the top 5 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 7,457,451 searches. Data last updated October 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$133 | Average$320 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$407 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$192 | Average$362 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$219 | Average$438 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$225 | Average$476 | FlexibilityNo cancel fee | On-time63% |