$180+ Cheap flights from Sioux Falls to Seattle (FSD - 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
Oct 7 — Oct 141
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Sioux Falls 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.Cheap flight deals from Sioux Falls to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Sioux Falls to SeattleExplore the most affordable flight options available from Sioux Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
Explore the most affordable flight options available from Sioux Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:31 pm -
1 stop21h 41m
Sun 10/254:27 pm -
1 stop24h 09m
Deal found 9/5![Frontier logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/295:06 pm -
1 stop6h 13m
Mon 11/23:49 pm -
1 stop5h 55m
Deal found 9/2![United Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1812:26 pm -
2 stops33h 45m
Sun 10/254:27 pm -
1 stop24h 09m
Deal found 9/5![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:44 pm -
2 stops44h 28m
Sun 10/254:27 pm -
1 stop24h 09m
Deal found 9/5![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:52 pm -
1 stop20h 16m
Thu 10/19:45 pm -
1 stop11h 15m
Deal found 9/2![Multiple Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/16:50 pm -
1 stop6h 09m
Thu 10/83:55 pm -
1 stop5h 49m
Deal found 9/3![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 9/5. 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 10/175:00 pm -
1 stop5h 50m
Tue 10/2711:50 pm -
1 stop8h 10m
Deal found 9/5![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/179:42 am -
2 stops11h 02m
Sat 10/243:55 pm -
1 stop5h 49m
Deal found 9/5![United Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:31 pm -
1 stop21h 41m
Thu 10/2210:03 am -
2 stops23h 13m
Deal found 9/5![Multiple Airlines logo]()
$365
Best flights from Sioux Falls to SeattleDiscover carefully curated flight deals from Sioux Falls to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Sioux Falls to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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 1/65:00 pm -
1 stop6h 12m
Sat 1/98:30 am -
1 stop5h 36m
Deal found 9/7![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 9/6. 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.
Thu 10/295:00 pm -
1 stop8h 59m
Sun 11/16:00 am -
1 stop8h 00m
Deal found 9/6![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/295:06 pm -
1 stop8h 09m
Sun 11/13:49 pm -
1 stop5h 55m
Deal found 9/3![United Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/295:55 am -
2 stops8h 25m
Mon 11/21:16 pm -
2 stops8h 28m
Deal found 9/2![United Airlines logo]()
$423
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Sat 1/307:40 am -
1 stop10h 36m
Wed 2/312:46 pm -
1 stop8h 10m
Deal found 9/2![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Tue 9/225:05 pm -
1 stop6h 26m
Sat 9/2610:44 am -
2 stops10h 27m
Deal found 9/6![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/207:50 am -
2 stops14h 47m
Sat 10/241:22 pm -
2 stops8h 22m
Deal found 9/4![United Airlines logo]()
$439
Last-minute flights from Sioux Falls to SeattleDiscover last-minute flight deals from Sioux Falls to Seattle. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Sioux Falls to Seattle. Data last updated September 7, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:52 pm -
1 stop20h 16m
Thu 10/19:45 pm -
1 stop11h 15m
Deal found 9/2![Multiple Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/16:50 pm -
1 stop6h 09m
Thu 10/83:55 pm -
1 stop5h 49m
Deal found 9/3![United Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:31 pm -
1 stop21h 41m
Sun 10/254:27 pm -
1 stop24h 09m
Deal found 9/5![Frontier logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:31 pm -
1 stop21h 41m
Thu 10/2210:03 am -
2 stops23h 13m
Deal found 9/5![Multiple Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 9/5. 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 10/175:00 pm -
1 stop5h 50m
Tue 10/2711:50 pm -
1 stop8h 10m
Deal found 9/5![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/179:42 am -
2 stops11h 02m
Sat 10/243:55 pm -
1 stop5h 49m
Deal found 9/5![United Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1812:26 pm -
2 stops33h 45m
Sun 10/254:27 pm -
1 stop24h 09m
Deal found 9/5![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:44 pm -
2 stops44h 28m
Sun 10/254:27 pm -
1 stop24h 09m
Deal found 9/5![Multiple Airlines logo]()
$346
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/295:06 pm -
1 stop6h 13m
Mon 11/23:49 pm -
1 stop5h 55m
Deal found 9/2![United Airlines logo]()
$339
One-way flights from Sioux Falls to SeattleSearch for one-way flight options from Sioux Falls to Seattle. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Sioux Falls to Seattle. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Trip.com deal was found by Cheapflights users on 9/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:52 pm -
1 stop20h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:02 pm -
2 stops19h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$283
This American Airlines deal was found by Cheapflights users on 9/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:20 am -
1 stop10h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 11/307:36 pm -
1 stop16h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:55 am -
3 stops35h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:06 pm -
2 stops10h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:48 pm -
3 stops45h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$391
This American Airlines deal was found by Cheapflights users on 9/4. 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 9/192:10 pm -
1 stop8h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 9/199:35 am -
2 stops8h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$408
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/302:10 pm -
1 stop8h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$411
Find flight deals from Sioux Falls to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) 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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $279 (Kiwi.com) |
One-way from | $180 (Trip.com) |
Popular in | July |
Cheapest in | January |
Average price | $435 |
Cheapflights Fare Finder
Customize your flight search to find flights from Sioux Falls 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 September 7, 2026.
Use the filters below to find and compare flights from Sioux Falls to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Sun 9/20
10:02 pm-3:08 pm
2 stops19h 06m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$283
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Wed 1/6
5:00 pm-9:12 pm
1 stop6h 12m
Seattle/Tacoma Intl
Sat 1/9
8:30 am-4:06 pm
1 stop5h 36m
$359
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Mon 9/14
9:55 am-7:49 pm
3 stops35h 54m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$360
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Thu 10/15
12:06 pm-8:11 pm
2 stops10h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$365
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Wed 9/23
6:00 am-1:19 pm
1 stop9h 19m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$403
Quickest round-trip
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Sat 9/19
2:10 pm-8:29 pm
1 stop8h 19m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$403
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Thu 10/29
5:06 pm-11:15 pm
1 stop8h 09m
Seattle/Tacoma Intl
Sun 11/1
3:49 pm-11:44 pm
1 stop5h 55m
$404
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Sat 9/19
9:35 am-4:14 pm
2 stops8h 39m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$408
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Wed 9/30
2:10 pm-8:29 pm
1 stop8h 19m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$411
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Wed 9/23
6:00 am-4:14 pm
2 stops12h 14m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$418
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Sioux Falls 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 Sioux Falls to Seattle in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Sioux Falls-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sioux Falls-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 Sioux Falls-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 Sioux Falls to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Sioux Falls with our price prediction graph.
FSD-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 Sioux Falls to Seattle
How far ahead should I book a flight from Sioux Falls to Seattle?
The price you pay for your flight from Sioux Falls to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 20 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 Sioux Falls to Seattle?
Currently, January is the cheapest month in which you can book a flight from Sioux Falls to Seattle (average of $339). Flying from Sioux Falls to Seattle in July is currently the most expensive (average of $713). 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.
How much does it cost to fly round-trip from Sioux Falls to Seattle?
Airfare is below average for this route at the moment.
Sioux Falls to Seattle flights typically cost between $328 and $550 in October.The cheapest round-trip price found within the last 5 days was $279 on Frontier (Oct 16-Oct 25).
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 September 7, 2026.
Read through reviews of airlines operating flights from Sioux Falls to Seattle, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.2
Overall
7.8
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentLesley,Aug 2023
LIH - SEA
Boarding
8.1
Food
7.2
Overall
7.8
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentLesley,Aug 2023
LIH - SEA
Boarding
8.1
Food
7.2
Overall
7.8
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentLesley,Aug 2023
LIH - SEA
Boarding
8.1
Food
7.2
Overall
7.8
Entertainment
7.8
Comfort
7.8
Crew
8.5
Reviews
1 / 20
8.0
ExcellentLesley,Aug 2023
LIH - SEA
Related info for your journey
Find useful and relevant information for your journey from Sioux Falls 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
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Sioux Falls
Popular flights
Seattle flight routes
Alternative routes for Sioux Falls to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Sioux Falls to Seattle by cabin class
Find flights from Sioux Falls to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Sioux Falls and Seattle flights
Browse other Sioux Falls and Seattle flight options. Last updated on September 7, 2026.
Other flights from Sioux Falls
Browse through other flights departing from Sioux Falls. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
Top 3 airlines flying from Sioux Falls to Seattle
Discover the top 3 airlines that operate flights from Sioux Falls 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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$273 | Average$443 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$495 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$313 | Average$435 | FlexibilityNo cancel fee | On-time71% |