What is the cheapest day to fly from Boise to Sioux City?

Travelers seeking maximum savings on their Boise to Sioux City flight should consider departing on Friday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 BOI to SUX?

When flying from Boise 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.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Boise 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.

$700+ Flights from Boise to Sioux City

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Cheap flight deals from Boise to Sioux City

Round-trip from	$700 (United Airlines)

From Boise Air Term. Gowen Fld to Sioux City Sioux Gateway

Search Deals

Find flight deals from Boise to Sioux City

Cheapest flights from Boise to Sioux City
Explore the most affordable flight options available from Boise to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Mon 8/115:42 pmBOI - SUX

1 stop23h 36mUnited Airlines

Fri 8/156:53 pmSUX - BOI

1 stop4h 34mUnited Airlines

Deal found 7/27

$700

Best flights from Boise to Sioux City
Discover carefully curated flight deals from Boise 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.

Mon 8/115:42 pmBOI - SUX

1 stop23h 36mUnited Airlines

Fri 8/156:53 pmSUX - BOI

1 stop4h 34mUnited Airlines

Deal found 7/27

$700

Last-minute flights from Boise to Sioux City
Discover last-minute flight deals from Boise to Sioux City. Data last updated July 29, 2025 and is based on user searches.

Mon 8/115:42 pmBOI - SUX

1 stop23h 36mUnited Airlines

Fri 8/156:53 pmSUX - BOI

1 stop4h 34mUnited Airlines

Deal found 7/27

$700

Fly from

Fly to

Route

Depart

Return

Price

BoiseSioux City

BOI - SUX

BOISUX

Boise Air Term. Gowen Fld

Mon 8/11

5:42 pm-6:18 pm

1 stop23h 36m

Sioux City Sioux Gateway

Fri 8/15

6:53 pm-10:27 pm

1 stop4h 34m

$700

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Boise to Sioux City

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

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

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

See what other customers who have flown with United Airlines from Boise to Sioux City have to say. You can also see how each airline compares 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

Can I find deals for flights from Boise to Sioux City that include hotel bookings?
Yes. In addition to deals on Boise to Sioux City flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boise to Sioux City?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Sioux City.
Can I find deals for business class flights from Boise to Sioux City?
Yes. Cheapflights offers flight deals from Boise 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 Boise to Sioux City?
Currently, October is the cheapest month in which you can book a flight from Boise to Sioux City (average of $318). Flying from Boise 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.

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Norfolk

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Alternative routes for Boise to Sioux City

Top airline flying from Boise to Sioux City

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$323	Average$605	FlexibilityNo cancel fee	On-time69%

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$700+ Cheap flights from Boise to Sioux City (BOI - 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Boise to Sioux City

Round-trip from

Find flight deals from Boise to Sioux City

Cheapest flights from Boise to Sioux CityExplore the most affordable flight options available from Boise 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 Boise 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 Boise to Sioux City that are best for you.

Best time to book a flight from Boise to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Boise with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boise to Sioux City

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

Reviews of airlines servicing Sioux City

See what other customers who have flown with United Airlines from Boise to Sioux City have to say. You can also see how each airline compares 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 Boise to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

Traveling to a place near Sioux City?

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Alternative routes for Boise to Sioux City

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Top airline flying from Boise to Sioux City

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Travel Smart

Cheapest flights from Boise to Sioux City
Explore the most affordable flight options available from Boise to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.