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Cheap flights from Sioux City (SUX) to Illinois from $166

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 6/7. 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.
SUX — ORD
Apr 30 — May 71
From?
To?
Tue 4/30
Tue 5/7
1 adult, Economy
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What is the cheapest month to fly from Sioux City to Illinois?

The best pricing can be found in the month of January. Prices to Illinois from Sioux City average $252. You can even find prices in January for less than $252, as users have found deals to Illinois from as low as $197. The month of February appears to be one of the more expensive times to travel to Illinois from Sioux City. Flying in the targeted month can save you up to 32%.

When is the cheapest time to fly from Sioux City to Illinois (SUX - IL)?

When flying from Sioux City to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap United Airlines flights from Sioux City to Illinois

Explore cheap flight options specifically provided by United Airlines for the route between Sioux City and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/24$271
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:31 pmORD - SUX
1 stop20h 48mUnited Airlines
Deal found 4/24$358
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/24$374
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:40 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$425
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:32 pmORD - SUX
1 stop20h 42mUnited Airlines
Deal found 4/24$430
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:35 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$433
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:31 pmORD - SUX
1 stop20h 48mUnited Airlines
Deal found 4/24$438
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:40 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$447
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 4/24$455

Cheap Sioux City to Illinois flights in April & May 2024

Find cheap flight options from Sioux City to Illinois specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Prices were last updated on April 25, 2024.
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/24$271
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:31 pmORD - SUX
1 stop20h 48mUnited Airlines
Deal found 4/24$358
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/24$374
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:40 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$425
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:32 pmORD - SUX
1 stop20h 42mUnited Airlines
Deal found 4/24$430
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:35 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$433
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:31 pmORD - SUX
1 stop20h 48mUnited Airlines
Deal found 4/24$438
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:40 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$447
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 4/24$455

Sioux City to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Sioux City and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/24$271
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:31 pmORD - SUX
1 stop20h 48mUnited Airlines
Deal found 4/24$358
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/24$374
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:40 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$425
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:32 pmORD - SUX
1 stop20h 42mUnited Airlines
Deal found 4/24$430
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:35 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$433
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:31 pmORD - SUX
1 stop20h 48mUnited Airlines
Deal found 4/24$438
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:40 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$447
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 4/24$455

Non-stop flights to Illinois from Sioux City

Discover non-stop flight options from Sioux City to Illinois. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 5/309:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/23$214
Sun 5/266:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/24$271
Sat 5/256:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Wed 5/299:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/23$284
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/23$354
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 5/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 4/24$374
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 4/24$455

Sioux City to Illinois flights leaving soon

Find last-minute flight options from Sioux City to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:32 pmORD - SUX
1 stop20h 42mUnited Airlines
Deal found 4/24$430
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:35 pmORD - SUX
2 stops20h 39mUnited Airlines
Deal found 4/24$433
Sat 5/46:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Tue 5/79:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 4/24$455
Tue 4/306:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Sat 5/42:30 pmORD - SUX
2 stops20h 19mUnited Airlines
Deal found 4/23$537
Tue 4/3012:06 pmSUX - ORD
1 stop10h 46mUnited Airlines
Sat 5/42:30 pmORD - SUX
2 stops20h 19mUnited Airlines
Deal found 4/23$552
Tue 4/306:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Sat 5/49:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 4/23$554
Tue 4/3012:06 pmSUX - ORD
2 stops12h 06mUnited Airlines
Sat 5/42:30 pmORD - SUX
2 stops20h 19mUnited Airlines
Deal found 4/23$557
Sat 5/46:50 pmSUX - ORD
2 stops23h 36mUnited Airlines
Tue 5/79:32 pmORD - SUX
1 stop20h 42mUnited Airlines
Deal found 4/24$559
Tue 4/306:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Sat 5/42:36 pmORD - SUX
1 stop20h 13mUnited Airlines
Deal found 4/23$561

One-way flights to Illinois from Sioux City

Search for one-way flight options from Sioux City to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Fri 6/76:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Deal found 4/24$166
Fri 6/77:01 pmSUX - ORD
2 stops19h 52mUnited Airlines
Deal found 4/24$299
Fri 6/77:01 pmSUX - ORD
1 stop23h 54mUnited Airlines
Deal found 4/24$375

Find flights from Sioux City to Illinois within your budget

Customize your flight search to find flights from Sioux City to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$271 - $455

Route

Depart

Return

Price

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sun 5/26

Nonstop1h 44m

Chicago O'Hare Intl

Mon 5/27

Nonstop1h 48m

$271

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sun 5/26

Nonstop1h 44m

Chicago O'Hare Intl

Mon 5/27

1 stop20h 48m

$358

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 5/23

Nonstop1h 44m

Chicago O'Hare Intl

Mon 5/27

Nonstop1h 48m

$374

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sun 5/26

Nonstop1h 44m

Chicago O'Hare Intl

Mon 5/27

2 stops20h 39m

$425

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 5/4

Nonstop1h 41m

Chicago O'Hare Intl

Tue 5/7

1 stop20h 42m

$430

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 5/4

Nonstop1h 41m

Chicago O'Hare Intl

Tue 5/7

2 stops20h 39m

$433

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 5/23

Nonstop1h 44m

Chicago O'Hare Intl

Mon 5/27

1 stop20h 48m

$438

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 5/23

Nonstop1h 44m

Chicago O'Hare Intl

Mon 5/27

2 stops20h 39m

$447

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Sat 5/4

Nonstop1h 41m

Chicago O'Hare Intl

Tue 5/7

Nonstop1h 44m

$455

Flights are sorted by cheapest first

Deals found on 4/24

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated April 25, 2024.
United Airlines
7.4
Good
11,255 reviews
Check prices

Boarding

7.7

Crew

8.1

Comfort

7.2

Overall

7.4

Food

6.7

Entertainment

7.1

Reviews

1 / 10

Plane makes you pay for in flight entertainment. Unacceptable in this day and age. Plane was old and outdated. Luggage was lost

United Airlines
7.4
Good
11,255 reviews
United Airlines
7.4
Good
11,255 reviews
Check prices

Boarding

7.7

Crew

8.1

Comfort

7.2

Overall

7.4

Food

6.7

Entertainment

7.1

Reviews

1 / 10

Plane makes you pay for in flight entertainment. Unacceptable in this day and age. Plane was old and outdated. Luggage was lost

Related info for your journey

Find useful and relevant information for your journey from Sioux City to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sioux City to Illinois?

    Most people fly from Sioux City Sioux Gateway (SUX) if they book a flight from Sioux City to Illinois. Sioux City Sioux Gateway is conveniently located just 7.0 mi from Sioux City’s city center.

  • Can I find flights from Sioux City to Illinois for under $300 on Cheapflights?

    Yes, there are multiple flights from Sioux City to Illinois for under $300. The cheapest flight booked recently is on United Airlines for just $271, but on average you can expect to pay $479.

  • Are there nonstop flights from Sioux City to Illinois for under $300 on Cheapflights?

    Cheapflights has at least 6 direct flights from Sioux City to Illinois under $300. A good price for a nonstop flight from Sioux City to Illinois is less than $325.

  • Are there last-minute flights available from Sioux City to Illinois for under $500?

    There are currently 16+ open flights from Sioux City to Illinois within the next 7 days for less than $500.

  • What are the cheapest flights from Sioux City to Illinois?

    On average you can expect to pay $388 for a flight from Sioux City to Illinois. The cheapest flight overall is $116 while the most popular route, (Sioux City Sioux Gateway - Chicago O'Hare Intl) is currently priced at $214.

  • What does SUX to ORD mean?

    SUX stands for Sioux City Sioux Gateway Airport, while ORD stands for Chicago O'Hare Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Sioux City to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Sioux City to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Sioux City to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sioux City to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Sioux City to Illinois that include hotel bookings?

    Yes. In addition to deals on Sioux City to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux City to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux City to Illinois.

  • Can I find deals for business class flights from Sioux City to Illinois?

    Yes. Cheapflights offers flight deals from Sioux City to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Sioux City to Illinois that allow pets onboard?

    Many airlines flying from Sioux City to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Sioux City to Illinois?

    Yes, you can often find last-minute deals on Sioux City to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Sioux City to Illinois flight deals updated?

    The Sioux City to Illinois flight deals you see on this page were last updated on 4/24.

See more FAQs

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Top airline flying from Sioux City to Illinois

Discover the top airline that operate flights from Sioux City to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$194Average$295FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Sioux City to Illinois by cabin class

Find flights from Sioux City to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Sioux City to Illinois

Find hourly flight availability from Sioux City to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2024.
100%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Fly with Cheapflights

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How does Cheapflights help users find flights from Sioux City to Illinois?

Cheapflights helps you search for flights from Sioux City to Illinois via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Sioux City to Illinois?

Cheapflights simply makes it quick and affordable to book flights from Sioux City to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sioux City to Illinois with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sioux City to Illinois, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sioux City to Illinois become cheaper?

Yes, Cheapflights offers price alerts on Sioux City to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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