$124+ Cheap flights from Seattle to Charleston (SEA - CHS)
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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CHS
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Charleston 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 Seattle/Tacoma Intl to Charleston are usually found in February or January, booked 38 days in advance, depart on a Friday or Saturday and return on a Wednesday
Cheap flight deals from Seattle to Charleston
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to CharlestonExplore the most affordable flight options available from Seattle to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
Explore the most affordable flight options available from Seattle to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sat 9/1911:04 pm -
1 stop7h 59m
Sat 9/263:05 pm -
1 stop10h 31m
Deal found 8/5![United Airlines logo]()
$242
This Delta deal was found by Cheapflights users on 8/9. 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 9/146:00 am -
1 stop8h 57m
Wed 9/235:29 pm -
1 stop9h 26m
Deal found 8/9![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/15:00 am -
1 stop7h 28m
Sat 9/52:54 pm -
2 stops10h 49m
Deal found 8/10![United Airlines logo]()
$252
This Southwest deal was found by Cheapflights users on 8/6. 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 9/185:15 am -
1 stop13h 15m
Fri 9/251:15 pm -
2 stops10h 35m
Deal found 8/6![Southwest logo]()
$258
This deal was found by Cheapflights users on 8/6. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:59 pm -
1 stop10h 13m
Wed 10/213:11 pm -
1 stop8h 39m
Deal found 8/6![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 8/6. 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 8/257:16 am -
1 stop7h 22m
Sat 8/296:41 pm -
1 stop8h 16m
Deal found 8/6![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 8/7. 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 10/110:59 am -
1 stop9h 00m
Mon 10/57:17 am -
1 stop11h 26m
Deal found 8/7![American Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/911:00 pm -
1 stop8h 37m
Tue 9/154:30 pm -
1 stop8h 01m
Deal found 8/9![United Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:05 pm -
1 stop10h 14m
Wed 10/1412:57 pm -
1 stop10h 12m
Deal found 8/5![Delta logo]()
$283
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/1111:00 pm -
1 stop8h 37m
Sat 9/192:54 pm -
2 stops10h 51m
Deal found 8/8![United Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:16 am -
1 stop9h 34m
Sun 8/235:10 am -
1 stop7h 39m
Deal found 8/5![Delta logo]()
$290
Best flights from Seattle to CharlestonDiscover carefully curated flight deals from Seattle to Charleston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Seattle to Charleston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/167:00 am -
1 stop9h 40m
Sat 9/263:05 pm -
1 stop10h 31m
Deal found 8/7![United Airlines logo]()
$242
This Southwest deal was found by Cheapflights users on 8/7. 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 9/166:40 am -
2 stops8h 40m
Sat 9/266:45 am -
2 stops9h 25m
Deal found 8/7![Southwest logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:39 am -
Nonstop5h 27m
Mon 9/217:09 pm -
Nonstop5h 51m
Deal found 8/6![Alaska Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:30 pm -
1 stop7h 29m
Sun 8/305:10 am -
1 stop7h 39m
Deal found 8/5![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/246:30 pm -
2 stops13h 06m
Sun 8/304:30 pm -
1 stop9h 34m
Deal found 8/6![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Sat 9/1911:00 pm -
2 stops12h 50m
Tue 9/225:45 am -
2 stops13h 22m
Deal found 8/6![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 8/8. 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 8/296:50 am -
2 stops9h 00m
Sat 9/511:00 am -
2 stops10h 20m
Deal found 8/8![Southwest logo]()
$414
This Southwest deal was found by Cheapflights users on 8/5. 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 8/155:30 am -
2 stops9h 40m
Tue 8/181:25 pm -
2 stops10h 00m
Deal found 8/5![Southwest logo]()
$423
Last-minute flights from Seattle to CharlestonDiscover last-minute flight deals from Seattle to Charleston. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Charleston. Data last updated August 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:16 am -
1 stop9h 34m
Sun 8/235:10 am -
1 stop7h 39m
Deal found 8/5![Delta logo]()
$290
This Delta deal was found by Cheapflights users on 8/6. 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 8/257:16 am -
1 stop7h 22m
Sat 8/296:41 pm -
1 stop8h 16m
Deal found 8/6![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/15:00 am -
1 stop7h 28m
Sat 9/52:54 pm -
2 stops10h 49m
Deal found 8/10![United Airlines logo]()
$252
This Delta deal was found by Cheapflights users on 8/8. 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 9/511:18 am -
1 stop8h 06m
Sat 9/124:27 pm -
1 stop10h 31m
Deal found 8/8![Delta logo]()
$283
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/911:00 pm -
1 stop8h 37m
Tue 9/154:30 pm -
1 stop8h 01m
Deal found 8/9![United Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/1111:00 pm -
1 stop8h 37m
Sat 9/192:54 pm -
2 stops10h 51m
Deal found 8/8![United Airlines logo]()
$288
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:15 am -
1 stop9h 27m
Mon 9/142:06 pm -
1 stop10h 30m
Deal found 8/5![American Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 8/9. 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 9/146:00 am -
1 stop8h 57m
Sat 9/264:27 pm -
1 stop10h 31m
Deal found 8/9![Delta logo]()
$247
This American Airlines deal was found by Cheapflights users on 8/9. 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 9/1711:57 pm -
1 stop10h 19m
Mon 9/212:06 pm -
1 stop10h 30m
Deal found 8/9![American Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 8/6. 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 9/185:15 am -
1 stop13h 15m
Fri 9/251:15 pm -
2 stops10h 35m
Deal found 8/6![Southwest logo]()
$258
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sat 9/1911:04 pm -
1 stop7h 59m
Sat 9/263:05 pm -
1 stop10h 31m
Deal found 8/5![United Airlines logo]()
$242
One-way flights from Seattle to CharlestonSearch for one-way flight options from Seattle to Charleston. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Seattle to Charleston. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/2011:00 pm -
1 stop8h 37m
Deal found 8/7![United Airlines logo]()
$124
This American Airlines deal was found by Cheapflights users on 8/7. 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 10/110:59 am -
1 stop9h 00m
Deal found 8/7![American Airlines logo]()
$154
This United Airlines deal was found by Cheapflights users on 8/8. 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 10/1311:13 pm -
2 stops12h 47m
Deal found 8/8![United Airlines logo]()
$162
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sat 9/1911:00 pm -
2 stops12h 50m
Deal found 8/5![United Airlines logo]()
$163
This Southwest deal was found by Cheapflights users on 8/7. 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 9/2611:00 pm -
2 stops12h 35m
Deal found 8/7![Southwest logo]()
$165
This Southwest deal was found by Cheapflights users on 8/9. 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 9/1411:05 pm -
2 stops10h 30m
Deal found 8/9![Southwest logo]()
$175
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/68:40 am -
1 stop9h 54m
Deal found 8/7![United Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:41 pm -
3 stops33h 57m
Deal found 8/8![Multiple Airlines logo]()
$204
This Delta deal was found by Cheapflights users on 8/7. 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.
Thu 8/135:30 am -
1 stop9h 28m
Deal found 8/7![Delta logo]()
$205
This Booking.com deal was found by Cheapflights users on 8/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:39 am -
Nonstop5h 27m
Deal found 8/7![Alaska Airlines logo]()
$209
Find flight deals from Seattle to Charleston
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Charleston (CHS). 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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $242 (United Airlines) |
One-way from | $124 (United Airlines) |
Popular in | November |
Cheapest in | February |
Average price | $446 |
Good round-trip deal | $347 or less |
Good one-way deal | $208 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Charleston 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 August 10, 2026.
Use the filters below to find and compare flights from Seattle to Charleston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Wed 9/16
7:00 am-7:40 pm
1 stop9h 40m
Charleston
Sat 9/26
3:05 pm-10:36 pm
1 stop10h 31m
$242
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Wed 9/16
6:40 am-6:20 pm
2 stops8h 40m
Charleston
Sat 9/26
6:45 am-1:10 pm
2 stops9h 25m
$349
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Mon 8/24
6:30 pm-10:36 am
2 stops13h 06m
Charleston
Sun 8/30
4:30 pm-11:04 pm
1 stop9h 34m
$362
Quickest round-trip
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Thu 9/17
9:39 am-6:06 pm
Nonstop5h 27m
Charleston
Mon 9/21
7:09 pm-10:00 pm
Nonstop5h 51m
$367
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Sat 9/19
11:00 pm-2:50 pm
2 stops12h 50m
Charleston
Tue 9/22
5:45 am-4:07 pm
2 stops13h 22m
$368
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Mon 8/24
1:30 pm-11:59 pm
1 stop7h 29m
Charleston
Sun 8/30
5:10 am-9:49 am
1 stop7h 39m
$393
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Sat 8/29
6:50 am-6:50 pm
2 stops9h 00m
Charleston
Sat 9/5
11:00 am-6:20 pm
2 stops10h 20m
$414
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Sat 8/15
5:30 am-6:10 pm
2 stops9h 40m
Charleston
Tue 8/18
1:25 pm-8:25 pm
2 stops10h 00m
$423
Cheapest one-way
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Fri 10/2
12:10 am-11:20 am
1 stop8h 10m
$124
Quickest one-way
SeattleCharleston
SEA Seattle/Tacoma Intl - CHS Charleston
SEACHS
Seattle/Tacoma Intl
Sat 9/19
11:04 pm-10:03 am
1 stop7h 59m
$124
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Seattle to Charleston
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 Seattle to Charleston in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Charleston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Charleston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Charleston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Charleston 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 Seattle-Charleston 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 Seattle to Charleston
Have a flexible travel schedule? Discover the best time to fly to Charleston from Seattle with our price prediction graph.
SEA-CHS
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 Seattle to Charleston
How far ahead should I book a flight from Seattle to Charleston?
The price you pay for your flight from Seattle to Charleston may vary depending on when you book. For the best chance of a lower fare, look to book 37 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 Seattle to Charleston?
Currently, February is the cheapest month in which you can book a flight from Seattle to Charleston (average of $287). Flying from Seattle to Charleston in November is currently the most expensive (average of $536). 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 SEA to CHS?
Find hourly flight availability from Seattle to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 10, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Charleston as you normally would.
The best insider tips for Seattle to Charleston 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 Seattle to Charleston trip
Our travel experts
Reviews of airlines servicing Charleston
Get insights into the airlines that provide service to Charleston. 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 Charleston. Reviews last updated August 10, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Seattle to Charleston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Seattle to Charleston. 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 Charleston?
Book flights to Charleston if you plan to visit one of these locationsNorth Charleston
Santee
Summerville
Walterboro
Mount Pleasant
Goose Creek
Edisto Beach
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Alternative routes for Seattle to Charleston
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Other flights to Charleston
Explore flights to Charleston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
Complete your trip
Complete your trip to Charleston by adding a car rental and/or hotel reservation to your travel itinerary.
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Seattle and Charleston flights
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Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Seattle to Charleston
Discover the top 5 airlines that operate flights from Seattle to Charleston. 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 August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$347 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$333 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$209 | Average$358 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$233 | Average$432 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$249 | Average$476 | FlexibilityNo cancel fee | On-time63% |