$254+ Cheap flights from Washington to Sioux City (SUX)
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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Washington to Sioux City 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 Washington to Sioux City
Keep the following information in mind while searching for Washington to Sioux City flight deals. Data was last updated June 12, 2025.
Round-trip from | $254 (United Airlines) |
|---|
Find flight deals from Washington to Sioux City
Cheapest flights from Washington to Sioux CityExplore the most affordable flight options available from Washington to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Washington to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This United Airlines deal was found by Cheapflights users on 6/12. 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.
This United Airlines deal was found by Cheapflights users on 6/11. 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.
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from Washington to Sioux City 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 June 12, 2025.
Use the filters below to find and compare flights from Washington to Sioux City that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SeattleSioux City
SEA - SUX
SEASUX
Seattle/Tacoma Intl
Wed 9/24
10:55 am-10:57 pm
1 stop10h 02m
Sioux City Sioux Gateway
Sun 9/28
6:51 pm-11:29 pm
1 stop6h 38m
PortlandSioux City
PDX - SUX
PDXSUX
Portland
Fri 6/27
8:50 am-6:18 pm
1 stop7h 28m
Sioux City Sioux Gateway
Tue 7/1
6:53 pm-10:16 pm
1 stop5h 23m
SpokaneSioux City
GEG - SUX
GEGSUX
Spokane
Thu 6/26
5:15 am-6:18 pm
1 stop11h 03m
Sioux City Sioux Gateway
Mon 6/30
6:53 pm-5:23 pm
1 stop24h 30m
PortlandSioux City
PDX - SUX
PDXSUX
Portland
Mon 6/30
11:59 pm-10:40 pm
1 stop20h 41m
SeattleSioux City
SEA - SUX
SEASUX
Seattle/Tacoma Intl
Wed 6/25
3:35 pm-6:18 pm
1 stop24h 43m
Best time to book a flight from Washington to Sioux City
Have a flexible travel schedule? Discover the best time to fly to Sioux City from Washington with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington to Sioux City
What is the cheapest month to book a flight from State of Washington to Sioux City?
Currently, October is the cheapest month in which you can book a flight from State of Washington to Sioux City (average of $318). Flying from State of Washington to Sioux City in March is currently the most expensive (average of $446). 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 WA to SUX?
Find hourly flight availability from Washington to Sioux City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
When flying from State of Washington to Sioux City, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Rainfall in Sioux City by month
Plan your trip to Sioux City by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Sioux City ranges from 0.7 - 4.2 inches per month. June is typically the wettest month, when rainfall can reach 4.2 in. January is typically the driest time to visit Sioux City when rainfall is around 0.7 in.
Temperature in Sioux City by month
Plan your trip to Sioux City by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Sioux City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).
Reviews of airlines servicing Sioux City
Get insights into the airlines that provide service to Sioux City. 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 City. Reviews last updated June 12, 2025.
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
Deb,Jan 2025
MKE - ORD
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
Deb,Jan 2025
MKE - ORD
Related info for your journey
Find useful and relevant information for your journey from Washington to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Washington to Sioux City
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Washington to Sioux City
Discover the top airline that operate flights from Washington to Sioux City. 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 June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$271 | Average$485 | FlexibilityNo cancel fee | On-time69% |