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

According to our current data, United Airlines ($472), offers the cheapest pricing from Spokane to Sioux City.

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.

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).

What is the cheapest time of day to fly from GEG to SUX?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Spokane to Sioux City as you normally would.

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.

$472+ Flights from Spokane to Sioux City

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Cheap flight deals from Spokane to Sioux City

Round-trip from	$472 (United Airlines)

From Spokane to Sioux City Sioux Gateway

Search Deals

Find flight deals from Spokane to Sioux City

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 July 29, 2025.

Sat 10/47:15 amGEG - SUX

2 stops8h 59mUnited Airlines

Tue 10/76:51 pmSUX - GEG

2 stops30h 24mUnited Airlines

Deal found 7/28

$472

Best flights from Spokane to Sioux City
Discover carefully curated flight deals from Spokane to Sioux City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sat 10/47:15 amGEG - SUX

2 stops8h 59mUnited Airlines

Tue 10/76:51 pmSUX - GEG

2 stops17h 48mUnited Airlines

Deal found 7/27

$472

Fly from

Fly to

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-10:39 am

2 stops17h 48m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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

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

8,899 reviews

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

8,899 reviews

United Airlines

7.4

Good

8,899 reviews

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

What is the cheapest airline to fly from Spokane to Sioux City round-trip?
According to our current data, United Airlines ($472), 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

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$473	Average$586	FlexibilityNo cancel fee	On-time69%

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$472+ 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.

Find cheap flights from Spokane to Sioux City with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Spokane to Sioux City

Round-trip from

Find flight deals from Spokane to Sioux City

Cheapest flights from Spokane to Sioux CityExplore 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 July 29, 2025.

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 July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Spokane to Sioux City that are best for you.

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.

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?

Reviews of airlines servicing Sioux City

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.

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.

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

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

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

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

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

Traveling to a place near Sioux City?

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 for Spokane to Sioux City

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Spokane to Sioux City

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Book with Flexibility

Travel Smart

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 July 29, 2025.