$166 Find Cheap Flights from Sioux City to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux City to the United States departing on 9/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Sioux City to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop$244
Los Angeles
Los Angeles1 stop$333
Las Vegas
Las Vegas1 stop$324
San Francisco
San Francisco1 stop$404
Boston
Boston1 stop$369
Denver
Denvernonstop$214
Seattle
Seattle1 stop$490
Fort Lauderdale
Fort Lauderdale2 stops$697
Atlanta
Atlanta1 stop$234
New York
New York1 stop$244
Los Angeles
Los Angeles1 stop$333
Las Vegas
Las Vegas1 stop$324
San Francisco
San Francisco1 stop$404
Boston
Boston1 stop$369
Denver
Denvernonstop$214
Seattle
Seattle1 stop$490
Fort Lauderdale
Fort Lauderdale2 stops$697
Atlanta
Atlanta1 stop$234

Book Cheap Sioux City to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux City to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sioux City to the United States

Wed, Sep 3 - Sun, Sep 7
United Airlines Logo
6:48 pm - 7:35 pmSUX-DEN
1h 47mnonstop
United Airlines Logo
3:40 pm - 6:13 pmDEN-SUX
1h 33mnonstop
$214United Airlines
Find Deal
Sat, Aug 23 - Sun, Aug 24
United Airlines Logo
7:49 am - 9:40 amSUX-ORD
1h 51mnonstop
United Airlines Logo
9:05 pm - 10:57 pmORD-SUX
1h 52mnonstop
$235United Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
United Airlines Logo
7:49 am - 3:33 pmSUX-DTW
6h 44m1 stop
United Airlines Logo
2:30 pm - 10:57 pmDTW-SUX
9h 27m2 stops
$244United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
United Airlines Logo
6:48 pm - 7:35 pmSUX-DEN
1h 47mnonstop
United Airlines Logo
3:40 pm - 6:13 pmDEN-SUX
1h 33mnonstop
$254United Airlines
Find Deal
Fri, Aug 29 - Sun, Aug 31
United Airlines Logo
6:48 pm - 7:35 pmSUX-DEN
1h 47mnonstop
United Airlines Logo
3:40 pm - 6:13 pmDEN-SUX
1h 33mnonstop
$262United Airlines
Find Deal
Wed, Aug 13 - Sun, Aug 17
United Airlines Logo
10:10 am - 6:07 pmSUX-SDF
6h 57m1 stop
United Airlines Logo
7:20 pm - 10:40 pmSDF-SUX
4h 20m1 stop
$292United Airlines
Find Deal
Sat, Aug 16 - Fri, Aug 22
United Airlines Logo
6:53 pm - 7:36 pmSUX-DEN
1h 43mnonstop
United Airlines Logo
3:40 pm - 6:13 pmDEN-SUX
1h 33mnonstop
$302United Airlines
Find Deal
Fri, Aug 15 - Sun, Aug 17
United Airlines Logo
6:53 pm - 7:36 pmSUX-DEN
1h 43mnonstop
United Airlines Logo
3:40 pm - 6:18 pmDEN-SUX
1h 38mnonstop
$310United Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
United Airlines Logo
6:51 pm - 7:40 pmSUX-DEN
1h 49mnonstop
United Airlines Logo
3:40 pm - 6:14 pmDEN-SUX
1h 34mnonstop
$312United Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
United Airlines Logo
6:53 pm - 10:44 pmSUX-SLC
4h 51m1 stop
United Airlines Logo
12:42 pm - 10:40 pmSLC-SUX
8h 58m1 stop
$312United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Sioux City to the United States flights

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

What is the cheapest Sioux City to the United States flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Sioux City to the United States.

The cheapest ticket to the United States from Sioux City found in the last 72 hours was to Denver, at $253 round-trip. The most popular route is from Sioux City (SUX) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $253.

Can I save money by flying with a layover from Sioux City to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $339, prices are generally cheapest when you fly direct.


Good to know

Low seasonJanuary
Cheapest flight$166
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Sioux City to Chicago

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Sioux City to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sioux City to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sioux City to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sioux City to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sioux City to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Sioux City to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sioux City to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sioux City to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the afternoon, when round-trip flights cost $272 on average. Morning departures are around 36% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is $441.

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Sioux City to the following destinations at these prices or less: Denver $257 one-way - $323 round-trip; Chicago $223 one-way - $354 round-trip

Reviews of the top airline flying from Sioux City to the United States

 
Need help choosing which airline to fly with from Sioux City to the United States? 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 8896 reviews
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

2.0 MediocreV, Jul 2025MIA - EWR
Read more United Airlines reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

Everything you need to know for your flight from Sioux City to the United States

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