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$248+ Cheap flights from Sioux City (SUX) to Washington

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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — SEA
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Find flight deals from Sioux City to Washington

Cheapest flights from Sioux City to Washington
Explore the most affordable flight options available from Sioux City to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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.
jue. 11/206:46 pmSUX - SEA
1 stop6h 24mUnited Airlines
mié. 12/101:40 pmSEA - SUX
1 stop7h 19mUnited Airlines
Deal found 10/27$248
This United Airlines deal was found by Cheapflights users on 10/25. 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.
sáb. 11/17:45 amSUX - GEG
2 stops9h 36mUnited Airlines
mar. 11/46:00 amGEG - SUX
2 stops10h 08mUnited Airlines
Deal found 10/25$539
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mié. 12/106:52 pmSUX - GEG
1 stop19h 53mUnited Airlines
sáb. 12/131:47 pmGEG - SUX
2 stops31h 12mUnited Airlines
Deal found 10/27$564
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 12/236:54 pmSUX - PDX
1 stop17h 07mUnited Airlines
sáb. 12/275:00 amPDX - SUX
1 stop11h 13mUnited Airlines
Deal found 10/27$643
This United Airlines deal was found by Cheapflights users on 10/26. 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.
vie. 12/266:54 pmSUX - PDX
1 stop6h 05mUnited Airlines
mar. 12/305:00 amPDX - SUX
1 stop28h 05mUnited Airlines
Deal found 10/26$676
This United Airlines deal was found by Cheapflights users on 10/27. 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.
vie. 11/217:45 amSUX - PDX
1 stop30h 03mUnited Airlines
dom. 11/309:45 pmPDX - SUX
1 stop18h 23mUnited Airlines
Deal found 10/27$714
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mié. 11/267:45 amSUX - GEG
1 stop29h 33mUnited Airlines
sáb. 11/295:10 amGEG - SUX
1 stop10h 58mUnited Airlines
Deal found 10/27$766
This United Airlines deal was found by Cheapflights users on 10/26. 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.
jue. 11/66:46 pmSUX - PDX
1 stop6h 10mUnited Airlines
dom. 11/95:00 amPDX - SUX
1 stop11h 08mUnited Airlines
Deal found 10/26$794
This United Airlines deal was found by Cheapflights users on 10/27. 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.
jue. 11/277:45 amSUX - GEG
1 stop29h 46mUnited Airlines
dom. 11/309:45 pmGEG - SUX
1 stop18h 23mUnited Airlines
Deal found 10/27$807
This United Airlines deal was found by Cheapflights users on 10/27. 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.
jue. 11/277:45 amSUX - GEG
3 stops31h 00mUnited Airlines
sáb. 11/295:10 amGEG - SUX
1 stop10h 58mUnited Airlines
Deal found 10/27$980

Cheap flight deals from Sioux City to Washington

Keep the following information in mind while searching for Sioux City to Washington flight deals. Data was last updated octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$248
(United Airlines)
Provider with most accurate pricing for Sioux City Sioux Gateway-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux City Sioux Gateway-Seattle/Tacoma Intl flights.
Search Deals
From Sioux City Sioux Gateway to Washington
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Washington 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 octubre 28, 2025.
Use the filters below to find and compare flights from Sioux City to Washington that are best for you.

Fly from

Sioux City

Fly to

Washington

Route

Depart

Return

Price

Sioux CitySeattle

SUX - SEA

SUXSEA

Sioux City Sioux Gateway

jue. 11/20

6:46 pm-11:10 pm

1 stop6h 24m

Seattle/Tacoma Intl

mié. 12/10

8:40 am-6:10 pm

1 stop7h 30m

$248

Sioux CitySeattle

SUX - SEA

SUXSEA

Sioux City Sioux Gateway

mar. 3/3

6:00 am-9:49 am

1 stop5h 49m

Seattle/Tacoma Intl

sáb. 3/7

7:00 am-5:32 pm

1 stop8h 32m

$322

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

mar. 3/3

6:00 am-9:42 am

1 stop5h 42m

Portland

sáb. 3/7

5:15 am-5:32 pm

2 stops10h 17m

$369

Sioux CitySpokane

SUX - GEG

SUXGEG

Sioux City Sioux Gateway

mié. 12/10

6:52 pm-12:45 pm

1 stop19h 53m

Spokane

sáb. 12/13

4:10 pm-10:59 pm

2 stops28h 49m

$564

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

mar. 12/23

6:54 pm-10:01 am

1 stop17h 07m

Portland

sáb. 12/27

5:00 am-6:13 pm

1 stop11h 13m

$643

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

vie. 12/26

6:54 pm-10:59 pm

1 stop6h 05m

Portland

mar. 12/30

5:00 am-11:05 am

1 stop28h 05m

$676

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

vie. 11/21

7:45 am-11:48 am

1 stop30h 03m

Portland

dom. 11/30

9:45 pm-6:08 pm

1 stop18h 23m

$714

Sioux CitySpokane

SUX - GEG

SUXGEG

Sioux City Sioux Gateway

mié. 11/26

7:45 am-11:18 am

1 stop29h 33m

Spokane

sáb. 11/29

5:10 am-6:08 pm

1 stop10h 58m

$766

Sioux CitySpokane

SUX - GEG

SUXGEG

Sioux City Sioux Gateway

jue. 11/27

7:45 am-11:31 am

1 stop29h 46m

Spokane

sáb. 11/29

5:10 am-6:08 pm

1 stop10h 58m

$807

Sioux CitySpokane

SUX - GEG

SUXGEG

Sioux City Sioux Gateway

jue. 11/27

7:45 am-11:31 am

1 stop29h 46m

Spokane

dom. 11/30

9:45 pm-6:08 pm

1 stop18h 23m

$807

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Best time to book a flight from Sioux City to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Sioux City with our price prediction graph.
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 City to Washington

What is the cheapest month to book a flight from Sioux City to State of Washington?

Currently, May is the cheapest month in which you can book a flight from Sioux City to State of Washington (average of $113). Flying from Sioux City to State of Washington in June is currently the most expensive (average of $284). 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 SUX to WA?

Find hourly flight availability from Sioux City to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 28, 2025.

It’s typically best to fly out from Sioux City to State of Washington at noon. Doing so could potentially save you 50% on the flight price compared to flying in the afternoon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Sioux City to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sioux City to Washington?

    Sioux City Sioux Gateway (SUX), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Sioux City to Washington.

  • How long is the flight from Sioux City to State of Washington?

    United Airlines can get you from Sioux City to State of Washington in just under 6h 24m. Your travel time can differ by up to . The distance between Sioux City and State of Washington is about 1308 mi.

  • What are the most popular routes from Sioux City to State of Washington?

    Most travelers choose Sioux City Sioux Gateway - Spokane, Sioux City Sioux Gateway - Seattle/Tacoma Intl or Sioux City Sioux Gateway - Portland when deciding on the best route from Sioux City to State of Washington.

  • Can I find deals for flights from Sioux City to Washington that include hotel bookings?

    Yes. In addition to deals on Sioux City to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux City to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux City to Washington.

  • Can I find deals for business class flights from Sioux City to Washington?

    Yes. Cheapflights offers flight deals from Sioux City to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sioux City to State of Washington?

    Currently, May is the cheapest month in which you can book a flight from Sioux City to State of Washington (average of $113). Flying from Sioux City to State of Washington in June is currently the most expensive (average of $284). 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.

See more FAQs

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