SUX

$162 Find Cheap Flights to Sioux City - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$224
Typical prices: $303-$572
United Airlines
Sat 9/15Fri 9/21
ORD - SUX • Non-stop
Cheapest one-way
$162
Typical prices: $215-$425
United Airlines
Wed 9/26
DFW - SUX • 1 stop
Nonstop flights
Every day
You can fly direct with United Airlines. Average duration is 1h 46m
FAQs
FAQs
Top airlines
United Airlines
Most flights • 14 per week
United Airlines
Best reviews • 7.4 score
Airline reviews
+1
Airline reviews
+1
Top routes
DEN - SUX
Cheapest • 12% average savings
CHI - SUX
Most popular
Insights
Insights
When to travel
February
Cheapest • 21% price drop
March
Most popular
Good to know
+1
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sioux City!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Sioux City

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Sioux City

Tue, Sep 15 - Mon, Sep 21
United Airlines Logo
4:00 pm - 5:53 pmORD  Chicago O'Hare Intl-SUX Sioux City Sioux Gateway
1h 53mnonstop
United Airlines Logo
8:05 am - 9:59 amSUX  Sioux City Sioux Gateway-ORD Chicago O'Hare Intl
1h 54mnonstop
$224United Airlines
Fri, Sep 11 - Sat, Sep 19
United Airlines Logo
9:05 pm - 11:43 pmDEN  Denver Intl-SUX Sioux City Sioux Gateway
1h 38mnonstop
United Airlines Logo
6:30 pm - 7:24 pmSUX  Sioux City Sioux Gateway-DEN Denver Intl
1h 54mnonstop
$234United Airlines
Fri, Sep 18 - Fri, Sep 25
United Airlines Logo
9:05 pm - 11:43 pmDEN  Denver Intl-SUX Sioux City Sioux Gateway
1h 38mnonstop
United Airlines Logo
6:58 pm - 7:52 pmSUX  Sioux City Sioux Gateway-DEN Denver Intl
1h 54mnonstop
$234United Airlines
Thu, Sep 24 - Sun, Sep 27
United Airlines Logo
9:05 pm - 11:43 pmDEN  Denver Intl-SUX Sioux City Sioux Gateway
1h 38mnonstop
United Airlines Logo
6:58 pm - 7:52 pmSUX  Sioux City Sioux Gateway-DEN Denver Intl
1h 54mnonstop
$234United Airlines
Sat, Sep 12 - Sun, Sep 13
United Airlines Logo
4:00 pm - 5:53 pmORD  Chicago O'Hare Intl-SUX Sioux City Sioux Gateway
1h 53mnonstop
United Airlines Logo
8:05 am - 9:59 amSUX  Sioux City Sioux Gateway-ORD Chicago O'Hare Intl
1h 54mnonstop
$265United Airlines
Fri, Sep 18 - Sun, Sep 20
United Airlines Logo
4:00 pm - 5:53 pmORD  Chicago O'Hare Intl-SUX Sioux City Sioux Gateway
1h 53mnonstop
United Airlines Logo
8:05 am - 9:59 amSUX  Sioux City Sioux Gateway-ORD Chicago O'Hare Intl
1h 54mnonstop
$266United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
9:05 pm - 11:43 pmDEN  Denver Intl-SUX Sioux City Sioux Gateway
1h 38mnonstop
United Airlines Logo
6:58 pm - 7:52 pmSUX  Sioux City Sioux Gateway-DEN Denver Intl
1h 54mnonstop
$274United Airlines
Tue, Sep 15 - Tue, Sep 22
United Airlines Logo
9:05 pm - 11:43 pmDEN  Denver Intl-SUX Sioux City Sioux Gateway
1h 38mnonstop
United Airlines Logo
6:35 pm - 7:29 pmSUX  Sioux City Sioux Gateway-DEN Denver Intl
1h 54mnonstop
$274United Airlines
Mon, Sep 14 - Mon, Sep 21
United Airlines Logo
9:05 pm - 11:43 pmDEN  Denver Intl-SUX Sioux City Sioux Gateway
1h 38mnonstop
United Airlines Logo
6:35 pm - 7:29 pmSUX  Sioux City Sioux Gateway-DEN Denver Intl
1h 54mnonstop
$282United Airlines
Thu, Nov 12 - Sun, Nov 15
United Airlines Logo
9:05 pm - 11:43 pmDEN  Denver Intl-SUX Sioux City Sioux Gateway
1h 38mnonstop
United Airlines Logo
6:45 pm - 7:41 pmSUX  Sioux City Sioux Gateway-DEN Denver Intl
1h 56mnonstop
$282United Airlines
Booking Insights

KAYAK's insights & trends for flights to Sioux City

Get data-powered insights and trends for flights to Sioux City to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Sioux City?

Chicago O'Hare Intl Airport to Sioux City is the cheapest route at $224 round-trip, found in the past 5 days on KAYAK. Denver to Sioux City is the most popular connection with round-trip deals from $234.

How much is a flight to Sioux City?

A round-trip flight to Sioux City costs $424 on average, based on data over the past 12 months on KAYAK. Round-trip fares from Denver average $278, while Chicago runs a bit higher at $354.

What is the cheapest day to fly to Sioux City?

Saturday is the cheapest day to fly to Sioux City at $373 round-trip on average over the past 12 months on KAYAK. Monday is the most expensive at $621.

What is the cheapest month to fly to Sioux City?

  • February is the cheapest month to fly to Sioux City with an average price of $336 round-trip.
  • May ($489) and March ($483) are the most expensive.
  • Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Sioux City?

Morning flights to Sioux City are the cheapest at $392 round-trip on average. Afternoon flights are the most expensive at $451.

What is a good deal for flights to Sioux City?

Flights under $303 are considered a good deal. 25% of KAYAK users found round-trip flights to Sioux City at or below these prices, with the lowest fares from:

  • Chicago $204
  • Denver $234
.

Find deals

Key details for flights to Sioux City

Low season

December

Cheapest flight

$162
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Dallas/Fort Worth Airport to Sioux City

When to book flights to Sioux City

Are your dates flexible? Find out the best times to travel to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your questions about flights to Sioux City, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What is the difference between the most popular and the most frequent airline at Sioux City?

    United Airlines operates the most flights from the United States to Sioux City at 14 per week, and for this route United Airlines is also the airline most often selected by KAYAK users searching for flights from the United States to Sioux City. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

  • How far is Sioux City Sioux Gateway from downtown Sioux City?

    Sioux City Sioux Gateway is 6.5 mi from downtown Sioux City.

  • How long are nonstop flights to Sioux City from different departure cities?

    Nonstop flight time to Sioux City varies depending on your departure city:
    • from Chicago: 1h 50m
    • from Denver: 1h 38m

  • Where can I fly from to get the cheapest fares to Sioux City?

    Based on fares booked in the past 5 days, the cheapest flights to Sioux City are from:
    • Chicago, from $224 round-trip

  • How many flights serve Sioux City?

    Sioux City receives 2 flights per day and 14 per week from across the world. Chicago has the most flights to Sioux City, with 7 weekly flights.

  • How do I know if a flight to Sioux City is a good deal?

    A good deal on a flight to Sioux City is around $303 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • Which airlines should I consider for flights to Sioux City?

    United Airlines is the most popular airline with KAYAK users flying to Sioux City, and has the best on-time record at the destination's main airport.

Your guide to booking Sioux City flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Sioux City, recent KAYAK data shows that stronger deals tend to land around $303 round-trip. If you see a fare below that threshold, it's a strong deal – book before the price climbs back up.
  • If you can choose when to go, time your trip to Sioux City around February. Round-trip fares historically average $336 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat-selection costs on budget carriers.
    • Verify whether you need any travel documents beyond ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to morning to save up to $59 per round-trip. Morning flights to Sioux City average $392 compared to $451 for noon flights. See the time-of-day chart above for the full breakdown.
  • Bag allowances vary by airline, fare type, cabin class and route. On flights to Sioux City, some airlines may include bags at no extra cost. For example, United Airlines includes a cabin bag in Economy Class and JetBlue includes a cabin bag in Economy Class. Always check the fare details before booking, since bag policies can change by ticket type.

Reviews of the top airline flying to Sioux City

 
Need help choosing which airline to fly with to Sioux City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10102 reviews
8.1Crew
6.7Food
7.7Boarding
7.1Entertainment
7.3Comfort
Airline reviews

Flight did not have wifi service. It was experiencing technical difficulties. Definitely and old plane that needs updating.

6.0 GoodMarc, Aug 2026
Read more United Airlines reviews

Flight did not have wifi service. It was experiencing technical difficulties. Definitely and old plane that needs updating.

Very Poor. Significant delays getting to Chicago and then very poor communication on delays in Chicago to Cleveland. We could have rented a car and driven there faster than the delays ended up being.

The app logs you out right when you are boarding requiring all passwords and reservation number for the flight. Super annoying

The pre-order only approach for fresh food is really challenging

the seat has a problem. the back had a hole.

A long delay. Don't travel late in the day.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

No food service almost missed because of first flight delays

Everything you need to know for your flight to Sioux City

Information on the airport you'll fly into in Sioux City

Sioux City (SUX)