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.

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.

Most accurate provider : When it comes to deals on Spokane-Sioux City flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Spokane-Sioux City flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Spokane-Sioux City flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Spokane-Sioux City flights, Cheapflights users trust eDreams the most. eDreams 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 Spokane-Sioux City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$589+ Flights from Spokane to Sioux City

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1. Tell us where you want to go

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Cheap flight deals from Spokane to Sioux City

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars

Provider with most accurate pricing for Spokane-Sioux City Sioux Gateway flight deals.

Search Deals

Provider most trusted by Cheapflights users for Spokane-Sioux City Sioux Gateway flights.

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 October 28, 2025.

Sat 11/16:00 amGEG - SUX

2 stops10h 08mUnited Airlines

Tue 11/47:45 amSUX - GEG

2 stops9h 36mUnited Airlines

Deal found 10/26

$589

Last-minute flights from Spokane to Sioux City
Discover last-minute flight deals from Spokane to Sioux City. Data last updated October 28, 2025 and is based on user searches.

Sat 11/16:00 amGEG - SUX

2 stops10h 08mUnited Airlines

Tue 11/47:45 amSUX - GEG

2 stops9h 36mUnited Airlines

Deal found 10/26

$589

Compare providers for flights from Spokane to Sioux City

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Spokane to Sioux City in October.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Spokane-Sioux City flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Spokane-Sioux City flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Spokane-Sioux City flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Spokane-Sioux City flights, Cheapflights users trust eDreams the most. eDreams 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 Spokane-Sioux City 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 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, March is the cheapest month in which you can book a flight from Spokane to Sioux City (average of $99). Flying from Spokane to Sioux City in January 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.

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

9,001 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,001 reviews

United Airlines

7.4

Good

9,001 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 ($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, March is the cheapest month in which you can book a flight from Spokane to Sioux City (average of $99). Flying from Spokane to Sioux City in January 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Spokane to Sioux City

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$473	Average$577	FlexibilityNo cancel fee	On-time69%

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$589+ 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 11/1. 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

Most accurate provider

Most trusted provider

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 October 28, 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 October 28, 2025.

Compare providers for flights from Spokane to Sioux City

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 Spokane to Sioux City in October.

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?

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

100% Free

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 October 28, 2025.