$177+ Cheap flights from Seattle to Sioux Falls (SEA - FSD)
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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FSD
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Sioux Falls 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 Seattle to Sioux Falls
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Cheapest flights from Seattle to Sioux FallsExplore the most affordable flight options available from Seattle to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Seattle to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:27 pm -
1 stop25h 40m
Mon 10/58:52 pm -
1 stop20h 16m
Deal found 9/15![Frontier logo]()
$340
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:27 pm -
1 stop25h 40m
Mon 10/58:52 pm -
1 stop20h 16m
Deal found 9/13![Frontier logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/317:30 am -
1 stop7h 53m
Wed 11/46:00 am -
1 stop10h 51m
Deal found 9/16![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/75:00 am -
1 stop5h 49m
Sat 10/179:42 am -
2 stops11h 02m
Deal found 9/14![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 9/15. 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 10/1711:50 pm -
1 stop8h 10m
Tue 10/208:30 am -
1 stop6h 00m
Deal found 9/15![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/141:56 pm -
1 stop7h 15m
Wed 10/216:00 am -
2 stops8h 23m
Deal found 9/14![United Airlines logo]()
$393
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/22:27 pm -
1 stop7h 17m
Mon 10/56:50 pm -
1 stop6h 09m
Deal found 9/13![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 9/17. 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 11/266:00 am -
1 stop7h 58m
Thu 12/38:27 am -
1 stop14h 22m
Deal found 9/17![Delta logo]()
$402
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:27 pm -
1 stop25h 40m
Mon 9/288:52 pm -
1 stop20h 16m
Deal found 9/17![Frontier logo]()
$405
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/1710:26 am -
1 stop8h 47m
Tue 10/208:05 am -
1 stop7h 42m
Deal found 9/16![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/295:00 am -
1 stop5h 49m
Sat 10/35:04 pm -
1 stop6h 11m
Deal found 9/14![United Airlines logo]()
$429
Best flights from Seattle to Sioux FallsDiscover carefully curated flight deals from Seattle to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Seattle to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This Delta deal was found by Cheapflights users on 9/15. 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 10/1711:50 pm -
1 stop8h 10m
Tue 10/208:30 am -
1 stop6h 00m
Deal found 9/15![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/171:16 pm -
2 stops8h 28m
Thu 11/265:55 am -
2 stops10h 44m
Deal found 9/13![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/171:56 pm -
1 stop7h 15m
Tue 10/207:50 am -
2 stops14h 47m
Deal found 9/17![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 9/14. 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 12/1411:37 pm -
1 stop8h 40m
Wed 12/235:10 pm -
1 stop25h 39m
Deal found 9/14![Delta logo]()
$547
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/292:30 pm -
1 stop6h 59m
Mon 11/29:32 am -
1 stop26h 15m
Deal found 9/16![United Airlines logo]()
$546
Last-minute flights from Seattle to Sioux FallsDiscover last-minute flight deals from Seattle to Sioux Falls. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Sioux Falls. Data last updated September 17, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:27 pm -
1 stop25h 40m
Mon 9/288:52 pm -
1 stop20h 16m
Deal found 9/17![Frontier logo]()
$405
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:27 pm -
1 stop25h 40m
Mon 10/58:52 pm -
1 stop20h 16m
Deal found 9/13![Frontier logo]()
$354
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/295:00 am -
1 stop5h 49m
Sat 10/35:04 pm -
1 stop6h 11m
Deal found 9/14![United Airlines logo]()
$429
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:27 pm -
1 stop25h 40m
Mon 10/58:52 pm -
1 stop20h 16m
Deal found 9/15![Frontier logo]()
$340
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/22:27 pm -
1 stop7h 17m
Mon 10/56:50 pm -
1 stop6h 09m
Deal found 9/13![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/75:00 am -
1 stop5h 49m
Sat 10/179:42 am -
2 stops11h 02m
Deal found 9/14![United Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/141:56 pm -
1 stop7h 15m
Wed 10/216:00 am -
2 stops8h 23m
Deal found 9/14![United Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 9/15. 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 10/1711:50 pm -
1 stop8h 10m
Tue 10/208:30 am -
1 stop6h 00m
Deal found 9/15![Delta logo]()
$379
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/1710:26 am -
1 stop8h 47m
Tue 10/208:05 am -
1 stop7h 42m
Deal found 9/16![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/291:16 pm -
2 stops8h 28m
Sat 10/315:55 am -
2 stops8h 25m
Deal found 9/15![United Airlines logo]()
$437
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/317:30 am -
1 stop7h 53m
Wed 11/46:00 am -
1 stop10h 51m
Deal found 9/16![American Airlines logo]()
$359
One-way flights from Seattle to Sioux FallsSearch for one-way flight options from Seattle to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Seattle to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/229:16 pm -
1 stop12h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 9/309:45 pm -
1 stop11h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 9/239:45 pm -
2 stops33h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$274
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/223:10 pm -
1 stop6h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![American Airlines logo]()
$303
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/229:57 am -
2 stops12h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Alaska Airlines logo]()
$435
Find flight deals from Seattle to Sioux Falls
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Sioux Falls (FSD). 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 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $340 (CheapOair) |
One-way from | $177 (Kiwi.com) |
Popular in | May |
Cheapest in | November |
Average price | $456 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Sioux Falls 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 17, 2026.
Use the filters below to find and compare flights from Seattle to Sioux Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Thu 10/22
9:16 pm-11:16 am
1 stop12h 00m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$177
Quickest round-trip
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Thu 10/22
12:04 pm-9:13 pm
1 stop7h 09m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$303
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Wed 9/30
4:27 pm-11:16 am
2 stops16h 49m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$304
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Sat 10/17
11:50 pm-10:00 am
1 stop8h 10m
Sioux Falls Joe Foss Field
Tue 10/20
8:30 am-12:30 pm
1 stop6h 00m
$379
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Mon 12/28
5:00 am-8:15 pm
2 stops13h 15m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$404
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Thu 10/22
9:57 am-12:41 am
2 stops12h 44m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$435
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Tue 11/17
1:16 pm-11:44 pm
2 stops8h 28m
Sioux Falls Joe Foss Field
Thu 11/26
5:55 am-2:39 pm
2 stops10h 44m
$449
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Sat 10/17
1:56 pm-11:11 pm
1 stop7h 15m
Sioux Falls Joe Foss Field
Tue 10/20
7:50 am-8:37 pm
2 stops14h 47m
$454
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Thu 10/29
2:30 pm-11:29 pm
1 stop6h 59m
Sioux Falls Joe Foss Field
Mon 11/2
9:32 am-9:47 am
1 stop26h 15m
$546
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Mon 12/14
11:37 pm-10:17 am
1 stop8h 40m
Sioux Falls Joe Foss Field
Wed 12/23
5:10 pm-4:49 pm
1 stop25h 39m
$547
Sorted by cheapest first
Compare providers for flights from Seattle to Sioux Falls
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 Sioux Falls in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Sioux Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Sioux Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Sioux Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Sioux Falls 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-Sioux Falls 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 Sioux Falls
Have a flexible travel schedule? Discover the best time to fly to Sioux Falls from Seattle with our price prediction graph.
SEA-FSD
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 Sioux Falls
What is the cheapest month to book a flight from Seattle to Sioux Falls?
Currently, November is the cheapest month in which you can book a flight from Seattle to Sioux Falls (average of $286). Flying from Seattle to Sioux Falls in May is currently the most expensive (average of $689). 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 Seattle to Sioux Falls?
Airfare is below average for this route at the moment.
Seattle to Sioux Falls flights typically cost between $373 and $546 in October.The cheapest round-trip price found within the last 5 days was $340 on Frontier (Oct 1-Oct 5).
Reviews of airlines servicing Sioux Falls
Get insights into the airlines that provide service to Sioux Falls. 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 Sioux Falls. Reviews last updated September 17, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Seattle to Sioux Falls 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
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Seattle to Sioux Falls. 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 Sioux Falls?
Book flights to Sioux Falls if you plan to visit one of these locationsYankton
Marshall
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Seattle and Sioux Falls flights
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Explore flights to Sioux Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
Top 3 airlines flying from Seattle to Sioux Falls
Discover the top 3 airlines that operate flights from Seattle to Sioux Falls. 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$268 | Average$446 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$512 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$479 | FlexibilityNo cancel fee | On-timeN/A |