HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux City

$438+ Cheap flights from Idaho 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SUX
jul. 7 — jul. 141
lun. 7/7
lun. 7/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho 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 Idaho to Sioux City

Keep the following information in mind while searching for Idaho to Sioux City flight deals. Data was last updated julio 2, 2025.

Round-trip from

$438
(United Airlines)
From Idaho to Sioux City Sioux Gateway
Search Deals

Find flight deals from Idaho to Sioux City

Cheapest flights from Idaho to Sioux City
Explore the most affordable flight options available from Idaho to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 2, 2025.

This United Airlines deal was found by Cheapflights users on 7/1. 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. 7/1610:45 amBOI - SUX
1 stop6h 33mUnited Airlines
dom. 7/206:53 pmSUX - BOI
1 stop4h 34mUnited Airlines
Deal found 7/1$438
This United Airlines deal was found by Cheapflights users on 6/29. 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. 10/41:38 pmGEG - SUX
2 stops31h 22mUnited Airlines
mar. 10/77:50 amSUX - GEG
2 stops9h 20mUnited Airlines
Deal found 6/29$501

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho 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 julio 2, 2025.
Use the filters below to find and compare flights from Idaho to Sioux City that are best for you.

Fly from

Idaho

Fly to

Sioux City

Route

Depart

Return

Price

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

mié. 7/16

10:45 am-6:18 pm

1 stop6h 33m

Sioux City Sioux Gateway

dom. 7/20

6:53 pm-10:27 pm

1 stop4h 34m

$438

SpokaneSioux City

GEG - SUX

GEGSUX

Spokane

sáb. 10/4

1:38 pm-11:00 pm

2 stops31h 22m

Sioux City Sioux Gateway

mar. 10/7

7:50 am-3:10 pm

2 stops9h 20m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Idaho to Sioux City

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

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

Currently, October is the cheapest month in which you can book a flight from Idaho to Sioux City (average of $318). Flying from Idaho 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 julio 2, 2025.
Read through reviews of airlines operating flights from Idaho to Sioux City, such as United Airlines. 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
8,861 reviews

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.0

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
8,861 reviews
United Airlines
7.4
Good
8,861 reviews

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.0

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 Idaho 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 airport do you fly into for flights to Sioux City from Idaho?

    For a flight from Idaho to Sioux City, you will be flying into Sioux Gateway. Sioux City Sioux Gateway (SUX) is just 7.0 mi from the center of the city.

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

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

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

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

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

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

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

Traveling to a place near Idaho?

Book flights to Idaho if you plan to visit one of these locations
Norfolk

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 Idaho to Sioux City

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Cedar Rapids flights
Seattle to Omaha flights
LaGuardia to Omaha flights
Denver to Omaha flights
Dallas/Fort Worth to Omaha flights
Denver to Des Moines flights
Seattle to Des Moines flights
John F Kennedy Intl to Omaha flights
Newark to Omaha flights
Los Angeles to Omaha flights
Sky Harbor Intl to Omaha flights
Reagan-National to Omaha flights
Charlotte to Des Moines flights
O'Hare Intl to Omaha flights
Newark to Cedar Rapids flights
LaGuardia to Cedar Rapids flights
Reagan-National to Des Moines flights
John F Kennedy Intl to Cedar Rapids flights
Dulles Intl to Des Moines flights
Philadelphia to Omaha flights
Dulles Intl to Omaha flights
Boston to Omaha flights
LaGuardia to Des Moines flights
Greenville to Des Moines flights
Atlanta to Omaha flights
Dallas/Fort Worth to Des Moines flights
Sky Harbor Intl to Des Moines flights
Baltimore to Des Moines flights
Hobby to Omaha flights
John F Kennedy Intl to Des Moines flights
Los Angeles to Des Moines flights
Asheville to Omaha flights
Detroit to Omaha flights
Baltimore to Omaha flights
Greenville to Omaha flights
Atlanta to Des Moines flights
San Francisco to Omaha flights
Seattle to Moline flights
George Bush Intcntl to Omaha flights
Dallas/Fort Worth to Cedar Rapids flights
Dallas/Fort Worth to Moline flights
Charlotte to Omaha flights
San Diego to Moline flights
Detroit to Des Moines flights
Austin to Omaha flights
Nashville to Cedar Rapids flights
Denver to Moline flights
Sky Harbor Intl to Cedar Rapids flights
Love Field to Omaha flights
San Diego to Cedar Rapids flights

Top airline flying from Idaho to Sioux City

Discover the top airline that operate flights from Idaho 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 julio 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$323Average$605FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.