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Sioux City

$178+ Cheap flights from Sioux City

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — DEN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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What to know about flights from Sioux City

Discover essential information about flights departing from Sioux City, including flight schedules, destinations, airlines operating at the Sioux City airport, and any specific guidelines or requirements for travelers. Please note that the information is based on the most recent updates available. Data last updated July 29, 2025.

Cheapest airline

United Airlines

Good round-trip deal

$323 or less

Good one-way deal

$223 or less
On average, United Airlines currently has the cheapest one-way flight from Sioux City Sioux Gateway (avg. price of $276).
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Price to beat on a round-trip flight from Sioux City Sioux Gateway.
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Price to beat on a one-way flight from Sioux City Sioux Gateway.
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Find flights from Sioux City

Cheapest flights from Sioux City
Explore the most affordable flight options available from Sioux City. Find the lowest fares based on data from user searches, with prices last updated on July 29, 2025.

Thu 10/96:51 pmSUX - DEN
Nonstop1h 49mUnited Airlines
Mon 10/133:40 pmDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 7/28$214
Sat 8/237:49 amSUX - ORD
Nonstop1h 51mUnited Airlines
Sun 8/249:05 pmORD - SUX
Nonstop1h 52mUnited Airlines
Deal found 7/29$235
Thu 8/216:48 pmSUX - LAS
1 stop4h 58mUnited Airlines
Mon 8/259:39 amLAS - SUX
1 stop6h 34mUnited Airlines
Deal found 7/28$244
Thu 8/287:49 amSUX - DTW
1 stop6h 44mUnited Airlines
Thu 9/42:30 pmDTW - SUX
2 stops9h 27mUnited Airlines
Deal found 7/29$244
Tue 8/1210:10 amSUX - BNA
1 stop5h 45mUnited Airlines
Sat 8/164:57 pmBNA - SUX
1 stop5h 43mUnited Airlines
Deal found 7/28$329
Thu 10/26:51 pmSUX - SLC
1 stop4h 47mUnited Airlines
Tue 10/71:14 pmSLC - SUX
1 stop4h 00mUnited Airlines
Deal found 7/27$329
Mon 9/86:48 pmSUX - PDX
1 stop5h 54mUnited Airlines
Mon 9/228:35 amPDX - SUX
1 stop7h 38mUnited Airlines
Deal found 7/28$334
Wed 8/207:49 amSUX - BOS
1 stop5h 51mUnited Airlines
Sat 8/236:09 amBOS - SUX
2 stops13h 04mUnited Airlines
Deal found 7/27$344
Wed 10/156:51 pmSUX - SEA
1 stop6h 38mUnited Airlines
Sat 10/186:35 amSEA - SUX
2 stops9h 39mUnited Airlines
Deal found 7/27$369
Sat 10/256:51 pmSUX - PIT
2 stops13h 40mUnited Airlines
Mon 10/277:01 amPIT - SUX
1 stop16h 58mUnited Airlines
Deal found 7/29$586

Find flights from Sioux City within your budget

 
Find flights departing from Sioux City that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on July 29, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Denver

Route

Depart

Return

Price

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Thu 10/9

6:51 pm-7:40 pm

Nonstop1h 49m

Denver Intl

Mon 10/13

3:40 pm-6:14 pm

Nonstop1h 34m

$214

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 8/23

7:49 am-9:40 am

Nonstop1h 51m

Chicago O'Hare Intl

Sun 8/24

9:05 pm-10:57 pm

Nonstop1h 52m

$235

Sioux CityLas Vegas

SUX - LAS

SUXLAS

Sioux City Sioux Gateway

Thu 8/21

6:48 pm-9:46 pm

1 stop4h 58m

Las Vegas Harry Reid Intl

Mon 8/25

9:39 am-6:13 pm

1 stop6h 34m

$244

Sioux CityDetroit

SUX - DTW

SUXDTW

Sioux City Sioux Gateway

Thu 8/28

7:49 am-3:33 pm

1 stop6h 44m

Detroit Metropolitan Wayne County

Thu 9/4

2:30 pm-10:57 pm

2 stops9h 27m

$244

Sioux CityNashville

SUX - BNA

SUXBNA

Sioux City Sioux Gateway

Tue 8/12

10:10 am-3:55 pm

1 stop5h 45m

Nashville Intl

Sat 8/16

4:57 pm-10:40 pm

1 stop5h 43m

$329

Sioux CitySalt Lake City

SUX - SLC

SUXSLC

Sioux City Sioux Gateway

Thu 10/2

6:51 pm-10:38 pm

1 stop4h 47m

Salt Lake City

Tue 10/7

1:14 pm-6:14 pm

1 stop4h 00m

$329

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Mon 9/8

6:48 pm-10:42 pm

1 stop5h 54m

Portland

Mon 9/22

8:35 am-6:13 pm

1 stop7h 38m

$334

Sioux CityBoston

SUX - BOS

SUXBOS

Sioux City Sioux Gateway

Wed 8/20

7:49 am-2:40 pm

1 stop5h 51m

Boston Logan Intl

Sat 8/23

6:09 am-6:13 pm

2 stops13h 04m

$344

Sioux CitySeattle

SUX - SEA

SUXSEA

Sioux City Sioux Gateway

Wed 10/15

6:51 pm-11:29 pm

1 stop6h 38m

Seattle/Tacoma Intl

Sat 10/18

6:35 am-6:14 pm

2 stops9h 39m

$369

Sioux CityPittsburgh

SUX - PIT

SUXPIT

Sioux City Sioux Gateway

Sat 10/25

6:51 pm-9:31 am

2 stops13h 40m

Pittsburgh

Mon 10/27

7:01 am-10:59 pm

1 stop16h 58m

$586

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 13 results
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Best time to book a flight from Sioux City

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

Travel insights for flights from Sioux City

Get recent, data-driven insights about flights from Sioux City including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Sioux City (average of $36). Flying from Sioux City in June will prove the most costly (average of $78). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Sioux City?

For flights departing from Sioux City check dates and pricing for the following: United Airlines. This airline departs to the following popular destinations: Denver.

United Airlines
United Airlines
From $194

What are popular destinations to fly to from Sioux City?

Some of the most frequent flights departing from Sioux City everyday are: Chicago (14 flights per day), Rock Springs (4 flights per day), and Denver (4 flights per day).

Chicago
Chicago
From $138
Denver Intl
Denver Intl
From $177

What is the cheapest place to fly to from Sioux City?

The cheapest city to fly to from Sioux City is Chicago, with prices starting at $138. Explore other affordable destinations below.

Chicago
Chicago
From $138
Denver Intl
Denver Intl
From $177

Airline reviews for flights from Sioux City

Read reviews and ratings of airlines operating flights from Sioux City. Gain insights into the quality of service, in-flight amenities, customer experiences, and overall satisfaction to choose the best airline for your Sioux City travel. Please note that the reviews are sourced from user searches and were last updated on July 29, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches.
Peruse reviews from past customers who have flown United Airlines from Sioux City to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,899 reviews

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

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
8,899 reviews
United Airlines
7.4
Good
8,899 reviews

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

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!

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Related info for your journey

Access useful and relevant information related to your journey from Sioux City. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated July 29, 2025.

  • What are the most popular destinations to fly to from Sioux City?

    This month, the top selected destinations from Sioux City are Denver, Chicago O'Hare Intl Airport, Chicago. Throughout the year, Denver, San Diego, Chicago O'Hare Intl Airport are some of the top choices made by users flying from Sioux City.

  • What is the cheapest flight from Sioux City to anywhere?

    Users have flown out of Sioux City for as low as $138 to Chicago O'Hare Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for $529 to fly from Sioux City.

  • What is the cheapest premium economy flight from Sioux City?

    Options for some of the cheapest premium economy flights from Sioux City we have found on Cheapflights are as follows:
    Fly from Sioux City Sioux Gateway to Chicago O'Hare Intl Airport starting at $2,185

  • What is the cheapest first class flight from Sioux City?

    If you’re looking for a cheap first-class flight from Sioux City, consider Denver. Prices start at $410 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Sioux City?

    February is currently the cheapest month to fly from Sioux City. At this moment in time June is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

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