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Find cheap flights from Illinois to Sioux City from $165
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight departing on 9/28. 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.Round-trip
1 adult
Economy
Sat 6/24
Sat 7/1
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Good to know
Low season | February |
|---|---|
High season | May |
Cheapest flight | $165 |
Average price round-trip | $384 |
Good deal round-trip | $241 |
Good deal one-way | $142 |
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Chicago to Sioux City
(avg. price over the last 2 weeks)
or less
or less
FAQs for booking flights from Illinois to Sioux City
Top airline flying from Illinois to Sioux City
Scores according to KAYAK customer reviews7.0
United AirlinesOverall score based on 68043 reviews
72overall
65food
74boarding
77crew
69comfort
65entertainment
Airline reviews
Pros: "Flight attendants were absolutely amazing!!!!! They made the trip very enjoyable!"
Cons: "Food!"
Pros: "Flight attendants were absolutely amazing!!!!! They made the trip very enjoyable!"
Cons: "Food!"
Pros: "getting bumped up to economy plus and being in an exit row."
Cons: "What I wrote above was meant to describe our experience from Chicago to Burlington- not Milwaukee to Chicago. Although, we had a delay in Milwaukee too. Overall, everything was only fair"
Pros: "Nothing at all!!! That should really tell you something!"
Cons: "The staff were rude, abrasive, ignored several passengers that were trying to get her attention before take off as 2 overhead bins were wide open and full to the brim. She of course was too busy playing on her cell phone in the back of the plane and ignored/silenced the passenger call button. They were so loud when people were sleeping, yelling ‘trash please’ every 5 minutes, we are not stupid, we can see what you are doing and if we have trash, we will give it to you - so please STOP disturbing my peace and let me bloody sleep!!!! I was never offered any food or drink during the entire flight, not even when I was awake - other airline attendants are more observant and come back and ask us when we are awake if we would like anything to eat or drink. So essentially that was 7 hours with nothing after having paid a little over $700 for what was seemingly the WORST transatlantic flight I’ve ever taken. I travel back and forth often, because I’m a dual national, but I will stick to BA or Virgin Atlantic - the planes and service are far superior to this pile of turd that goes by the name of United. There were no charging facilities (power outlet or USB port) and the TVs had such horrendous resolution that you would get a headache from having to squint at the screen."
Pros: "A FUN HAPPY TIME AS THE CHAPS WHO SAT EITHER SIDE OF ME WERE CHATTY AND HUMOROUS - THEY WERE HAPPY THAT COLUMBUS DAY WAS TO BE CELEBRATED THIS PAST MONDAY AND WHEN I TOLD THEM I WAS TO CELEBRATE CANADIAN THANKSGIVING WITH MY SON AND HIS AMERICAN WIFE AND THEIR 2 CHILDREN - WELL LET'S JUST SAY THE 3 HOURS OF THE FLIGHT FLEW BY. SMILE"
Pros: "Associates were nice and knowledgeable. The airplanes were comfortable. Love the onetime performance of scheduling."
Cons: "Unite Airline performance wasn't the good. Also, there was nobody in Chicago to help us with the transferring process."
Pros: "I had the exit window and that made a huge difference in my trip as I am a 6ft tall woman who is all legs."
Cons: "It was slightly turbulent and TSA at O'hare airport are the rudest and laziest humans on the planet."
Cons: "They might as well have thrown us in a car trunk the crew was very unaccommodating they didn't really care about us and the room legroom is ridiculously smal. On the connecting flight, the last flight the plane was two thirds empty and the crew made us sit in our assigned seats, crammed together telling us that if we want to sit in a seat with more legroom we have to pay $180"
Cons: "Too many seats too close together. The entire trip was too hot and stuffy. The flight attendants showed minimal care about the uncomfortable hot and stuffy environment."
Pros: "Not much."
Cons: "Originally, there was an announcement that we would be delayed by 45 minutes because of "air traffic" issues in San Francisco, where we were landing. In spite of this, the captain decided to have passengers board the plane, and try to push our way up the line, so to speak. Well, once we were on the tarmac, the flight crew were told that the plane could not take off, and that we needed to wait there for 45 minutes, without moving, in our seats, with nothing to do. Even though it would still not have been ideal to wait 45 minutes at the gate, at least we could have walked around and could have entertained ourselves."
Book cheap flights from Illinois to Sioux City
Recent round-trip flight deals
6/8Thu
nonstopUnited Airlines
1h 40mORD-SUX
6/10Sat
nonstopUnited Airlines
1h 44mSUX-ORD
$354
6/25Sun
nonstopUnited Airlines
1h 40mORD-SUX
6/28Wed
nonstopUnited Airlines
1h 44mSUX-ORD
$365
8/15Tue
2 stopsUnited Airlines
16h 20mORD-SUX
8/17Thu
1 stopUnited Airlines
18h 30mSUX-ORD
$379
8/15Tue
1 stopUnited Airlines
18h 41mORD-SUX
8/17Thu
nonstopUnited Airlines
1h 44mSUX-ORD
$397
8/15Tue
2 stopsUnited Airlines
16h 20mORD-SUX
8/17Thu
2 stopsUnited Airlines
25h 57mSUX-ORD
$443
6/30Fri
nonstopUnited Airlines
1h 40mORD-SUX
7/6Thu
nonstopUnited Airlines
1h 44mSUX-ORD
$444
6/25Sun
nonstopUnited Airlines
1h 40mORD-SUX
6/29Thu
nonstopUnited Airlines
1h 44mSUX-ORD
$455
8/15Tue
nonstopUnited Airlines
1h 40mORD-SUX
8/17Thu
nonstopUnited Airlines
1h 44mSUX-ORD
$464
6/25Sun
nonstopUnited Airlines
1h 40mORD-SUX
6/28Wed
1 stopUnited Airlines
18h 01mSUX-ORD
$502
6/30Fri
nonstopUndisclosed Carrier
0h 52mORD-SUX
7/8Sat
nonstopUndisclosed Carrier
0h 52mSUX-ORD
$524
6/25Sun
2 stopsUnited Airlines
12h 49mORD-SUX
6/28Wed
nonstopUnited Airlines
1h 44mSUX-ORD
$574
6/8Thu
nonstopUnited Airlines
1h 40mORD-SUX
6/10Sat
2 stopsUnited Airlines
12h 42mSUX-ORD
$608
6/8Thu
nonstopUnited Airlines
1h 40mORD-SUX
6/10Sat
1 stopUnited Airlines
16h 39mSUX-ORD
$609
6/25Sun
nonstopUnited Airlines
1h 40mORD-SUX
6/29Thu
2 stopsUnited Airlines
25h 57mSUX-ORD
$616
6/25Sun
2 stopsUnited Airlines
12h 49mORD-SUX
6/28Wed
1 stopUnited Airlines
18h 01mSUX-ORD
$687
6/30Fri
nonstopUnited Airlines
1h 40mORD-SUX
7/6Thu
1 stopUnited Airlines
16h 44mSUX-ORD
$699
6/30Fri
nonstopUnited Airlines
1h 40mORD-SUX
7/6Thu
2 stopsUnited Airlines
18h 22mSUX-ORD
$709
6/12Mon
nonstopUndisclosed Carrier
0h 52mORD-SUX
6/15Thu
nonstopUndisclosed Carrier
0h 52mSUX-ORD
$764
6/25Sun
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16h 39mORD-SUX
6/28Wed
2 stopsMultiple Airlines
17h 06mSUX-ORD
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17h 08mSUX-ORD
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9/28Thu
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1h 48mORD-SUX
$165
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26h 09mORD-SUX
$199
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nonstopUnited Airlines
1h 50mORD-SUX
$275
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26h 14mORD-SUX
$304
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Flights to Sioux City
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$354