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Sioux City

$158+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — PDX
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
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 January 26, 2026.

Cheapest one-way flight

$165

Cheapest round-trip flight

$214

Cheapest airline

United Airlines

Most popular destination

Denver Intl (DEN)

Good round-trip deal

$274 or less

Good one-way deal

$202 or less
The cheapest one-way flight from Sioux City Sioux Gateway is currently to Chicago O'Hare Intl.
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The cheapest round-trip flight from Sioux City Sioux Gateway is currently to Denver Intl.
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On average, United Airlines currently has the cheapest one-way flight from Sioux City Sioux Gateway (avg. price of $262).
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Denver Intl (DEN) is currently the most popular flight destination from Sioux City Sioux Gateway (average round-trip price of $257).
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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 January 26, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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.
Sat 2/216:00 am
SUX
-
DEN
Nonstop1h 54m
United Airlines
Tue 2/249:05 pm
DEN
-
SUX
Nonstop1h 37m
United Airlines
Deal found 1/26$214
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 3/612:53 pm
SUX
-
ORD
Nonstop1h 47m
United Airlines
Thu 3/123:50 pm
ORD
-
SUX
Nonstop1h 51m
United Airlines
Deal found 1/26$244
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Sat 4/256:00 am
SUX
-
DEN
Nonstop1h 53m
United Airlines
Wed 4/298:05 am
DEN
-
SUX
Nonstop1h 41m
United Airlines
Deal found 1/25$254
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Fri 2/136:00 am
SUX
-
DEN
Nonstop1h 54m
United Airlines
Wed 2/188:05 am
DEN
-
SUX
Nonstop1h 40m
United Airlines
Deal found 1/25$262
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Wed 2/256:46 pm
SUX
-
LAS
1 stop5h 26m
United Airlines
Sat 2/283:43 pm
LAS
-
SUX
1 stop5h 59m
United Airlines
Deal found 1/25$264
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Sat 6/2712:45 pm
SUX
-
ORD
Nonstop1h 55m
United Airlines
Wed 8/193:35 pm
ORD
-
SUX
Nonstop1h 57m
United Airlines
Deal found 1/25$265
This United Airlines deal was found by Cheapflights users on 1/24. 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.
Thu 3/56:30 pm
SUX
-
PDX
1 stop6h 29m
United Airlines
Wed 3/113:52 pm
PDX
-
SUX
1 stop5h 49m
United Airlines
Deal found 1/24$274
This United Airlines deal was found by Cheapflights users on 1/24. 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.
Fri 3/206:30 pm
SUX
-
LAS
1 stop5h 47m
United Airlines
Sat 3/284:40 pm
LAS
-
SUX
1 stop5h 01m
United Airlines
Deal found 1/24$299
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 6/186:00 am
SUX
-
DEN
Nonstop1h 57m
United Airlines
Sun 6/219:00 pm
DEN
-
SUX
Nonstop1h 42m
United Airlines
Deal found 1/26$302
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Tue 2/1012:45 pm
SUX
-
PHX
1 stop7h 37m
United Airlines
Sat 2/149:40 am
PHX
-
SUX
1 stop7h 01m
United Airlines
Deal found 1/26$307
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Tue 4/712:55 pm
SUX
-
LAS
1 stop7h 32m
United Airlines
Tue 4/216:00 am
LAS
-
SUX
2 stops9h 56m
United Airlines
Deal found 1/25$309
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Mon 2/96:00 am
SUX
-
DEN
Nonstop1h 57m
United Airlines
Fri 2/139:05 pm
DEN
-
SUX
Nonstop1h 37m
United Airlines
Deal found 1/25$310

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 January 26, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Portland

Route

Depart

Return

Price

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 3/20

6:30 pm-7:24 pm

Nonstop1h 54m

Denver Intl

Sat 3/28

8:05 am-10:45 am

Nonstop1h 40m

$214

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 2/21

6:00 am-6:54 am

Nonstop1h 54m

Denver Intl

Tue 2/24

9:05 pm-11:42 pm

Nonstop1h 37m

$214

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Wed 6/3

6:54 pm-7:51 pm

Nonstop1h 57m

Denver Intl

Sun 6/7

8:05 am-10:39 am

Nonstop1h 34m

$214

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 4/25

6:32 pm-7:25 pm

Nonstop1h 53m

Denver Intl

Wed 4/29

8:05 am-10:46 am

Nonstop1h 41m

$254

Sioux CityDenver

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Fri 2/13

6:00 am-6:54 am

Nonstop1h 54m

Denver Intl

Wed 2/18

8:05 am-10:45 am

Nonstop1h 40m

$262

Sioux CityLas Vegas

SUX - LAS

SUXLAS

Sioux City Sioux Gateway

Wed 2/25

6:46 pm-10:12 pm

1 stop5h 26m

Las Vegas Harry Reid Intl

Sat 2/28

3:43 pm-11:42 pm

1 stop5h 59m

$264

Sioux CityLas Vegas

SUX - LAS

SUXLAS

Sioux City Sioux Gateway

Tue 3/10

12:53 pm-6:10 pm

1 stop7h 17m

Las Vegas Harry Reid Intl

Tue 3/24

3:09 pm-11:41 pm

1 stop6h 32m

$264

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 3/6

12:53 pm-2:40 pm

Nonstop1h 47m

Chicago O'Hare Intl

Thu 3/12

3:50 pm-5:41 pm

Nonstop1h 51m

$265

Sioux CityChicago

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 6/27

12:45 pm-2:40 pm

Nonstop1h 55m

Chicago O'Hare Intl

Wed 8/19

3:35 pm-5:32 pm

Nonstop1h 57m

$265

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Thu 3/5

6:30 pm-10:59 pm

1 stop6h 29m

Portland

Wed 3/11

3:52 pm-11:41 pm

1 stop5h 49m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 38 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 $94). Flying from Sioux City in November will prove the most costly (average of $274). 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: Portland.

United Airlines
United Airlines
From $205

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), Denver (14 flights per day), and Laramie (5 flights per day).

Denver Intl
Denver Intl
From $173
Chicago
Chicago
From $165

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 $165. Explore other affordable destinations below.

Chicago
Chicago
From $165
Denver Intl
Denver Intl
From $173

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 January 26, 2026. 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
9,199 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,199 reviews
United Airlines
7.4
Good
9,199 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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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 January 26, 2026.

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

    This month, the top selected destinations from Sioux City are Denver, Chicago, Orlando. Throughout the year, Denver, San Diego, Chicago 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 $165 to Chicago O'Hare Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for $356 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 $1,588

  • 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 $773 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 November 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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