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Sioux City

$461+ Cheap flights from Spokane to Sioux City (GEG - 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
GEG — SUX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Spokane to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Spokane (GEG) to Sioux City (SUX). 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 11, 2025.

Round-trip from

$461
(United Airlines)
From Spokane to Sioux City Sioux Gateway
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Cheapest flights from Spokane to Sioux City
Explore the most affordable flight options available from Spokane to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/47:15 amGEG - SUX
2 stops8h 59mUnited Airlines
Tue 10/76:51 pmSUX - GEG
2 stops17h 48mUnited Airlines
Deal found 9/10$461

Cheapflights Fare Finder

 
Customize your flight search to find flights from Spokane 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 September 11, 2025.
Use the filters below to find and compare flights from Spokane to Sioux City that are best for you.

Fly from

Spokane

Fly to

Sioux City

Route

Depart

Return

Price

SpokaneSioux City

GEG - SUX

GEGSUX

Spokane

Sat 10/4

7:15 am-6:14 pm

2 stops8h 59m

Sioux City Sioux Gateway

Tue 10/7

6:51 pm-11:15 pm

2 stops30h 24m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Spokane to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Spokane 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 Spokane to Sioux City

What is the cheapest month to book a flight from Spokane to Sioux City?

Currently, October is the cheapest month in which you can book a flight from Spokane to Sioux City (average of $318). Flying from Spokane 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.

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 September 11, 2025.
Peruse reviews from past customers who have flown with United Airlines from Spokane to Sioux City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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

  • How long is the flight from Spokane to Sioux City?

    Departing from Spokane to Sioux City will take you 8h 59m. The distance between Spokane and Sioux City is about 1089 mi.

  • What is the cheapest airline to fly from Spokane to Sioux City round-trip?

    According to our current data, United Airlines ($473), offers the cheapest pricing from Spokane to Sioux City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Spokane to Sioux City 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 Spokane to Sioux City?

    Currently, October is the cheapest month in which you can book a flight from Spokane to Sioux City (average of $318). Flying from Spokane 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.

See more FAQs

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Top airline flying from Spokane to Sioux City

Discover the top airline that operate flights from Spokane 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$473Average$577FlexibilityNo cancel feeOn-time69%

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