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Cheap flights from Sioux City (SUX) to Chicago (CHI) from $111

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 5/21. 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 — CHI
May 11 — May 181
From?
To?
Sat 5/11
Sat 5/18
1 adult, Economy
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Cheap flight deals from Sioux City to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 6, 2024.

Popular in

June

Cheapest in

December

Round-trip from

$223

One-way from

$111
High demand for flights, 20% potential price rise
Search Deals
Best time to find cheap flights, 24% potential price drop
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From Sioux City Sioux Gateway to Chicago (CHI)
Search Deals
One-way flight from Sioux City Sioux Gateway to Chicago (CHI)
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What is the cheapest day to fly round-trip from Sioux City to Chicago?

Sunday flights are found to be more expensive to fly from Sioux City to Chicago. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Chicago.

What is the cheapest month to fly from Sioux City to Chicago?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, December can be a great choice for travel to Chicago. Flights to Chicago from Sioux City in December are about $283 on average during December, but can be found for as low as $163.

When is the cheapest time to fly from Sioux City to Chicago (SUX - CHI)?

Unlike in the morning, when flights are generally more expensive, you can save up to 9% on flights from Sioux City to Chicago by exploring options for tickets at noon.

Cheap United Airlines flights from Sioux City to Chicago

Explore cheap flight options specifically provided by United Airlines for the route between Sioux City and Chicago. 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 2,719,943 searches. Data last updated May 6, 2024.
Tue 5/286:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Wed 5/299:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$225
Thu 10/317:45 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 11/49:05 pmORD - SUX
Nonstop1h 40mUnited Airlines
Deal found 5/5$236
Tue 6/116:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 6/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$284
Fri 8/96:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Sun 8/119:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$295
Tue 5/286:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Wed 5/298:05 pmORD - SUX
1 stop22h 14mUnited Airlines
Deal found 5/5$319
Thu 10/313:31 pmSUX - ORD
1 stop18h 12mUnited Airlines
Mon 11/49:05 pmORD - SUX
Nonstop1h 40mUnited Airlines
Deal found 5/5$332
Wed 6/196:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 6/249:40 pmORD - SUX
2 stops20h 46mUnited Airlines
Deal found 5/5$348
Fri 5/176:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Mon 5/209:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/5$354
Mon 6/106:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 6/279:08 pmORD - SUX
1 stop21h 18mUnited Airlines
Deal found 5/5$368

Cheap Sioux City to Chicago flights in May & June 2024

Find cheap flight options from Sioux City to Chicago specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Prices were last updated on May 6, 2024.
Tue 5/286:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Wed 5/299:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$225
Tue 6/116:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 6/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$284
Tue 5/286:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Wed 5/298:05 pmORD - SUX
1 stop22h 14mUnited Airlines
Deal found 5/5$319
Wed 6/196:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 6/249:40 pmORD - SUX
2 stops20h 46mUnited Airlines
Deal found 5/5$348
Fri 5/176:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Mon 5/209:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/5$354
Mon 6/106:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 6/279:08 pmORD - SUX
1 stop21h 18mUnited Airlines
Deal found 5/5$368
Wed 6/196:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 6/249:31 pmORD - SUX
1 stop20h 55mUnited Airlines
Deal found 5/5$379
Tue 6/117:01 pmSUX - ORD
2 stops16h 38mUnited Airlines
Thu 6/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$381
Tue 5/286:54 pmSUX - ORD
2 stops18h 03mUnited Airlines
Wed 5/299:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$386

Sioux City to Chicago 2024 flight deals

Discover exclusive flight deals for travel between Sioux City and Chicago in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Data last updated May 6, 2024.
Tue 5/286:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Wed 5/299:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$225
Thu 10/317:45 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 11/49:05 pmORD - SUX
Nonstop1h 40mUnited Airlines
Deal found 5/5$236
Tue 6/116:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 6/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$284
Fri 8/96:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Sun 8/119:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$295
Tue 5/286:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Wed 5/298:05 pmORD - SUX
1 stop22h 14mUnited Airlines
Deal found 5/5$319
Thu 10/313:31 pmSUX - ORD
1 stop18h 12mUnited Airlines
Mon 11/49:05 pmORD - SUX
Nonstop1h 40mUnited Airlines
Deal found 5/5$332
Wed 6/196:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 6/249:40 pmORD - SUX
2 stops20h 46mUnited Airlines
Deal found 5/5$348
Fri 5/176:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Mon 5/209:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/5$354
Mon 6/106:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 6/279:08 pmORD - SUX
1 stop21h 18mUnited Airlines
Deal found 5/5$368

Non-stop flights to Chicago from Sioux City

Discover non-stop flight options from Sioux City to Chicago. 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 2,719,943 searches. Data last updated May 6, 2024.
Tue 5/286:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Wed 5/299:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$225
Thu 10/317:45 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 11/49:05 pmORD - SUX
Nonstop1h 40mUnited Airlines
Deal found 5/5$236
Tue 6/116:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 6/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$284
Fri 8/96:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Sun 8/119:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$295
Fri 5/176:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Mon 5/209:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/5$354
Wed 6/196:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Mon 6/249:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$445
Mon 6/106:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Thu 6/279:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$584
Sat 8/106:15 amSUX - ORD
Nonstop1h 44mUnited Airlines
Sun 8/119:05 pmORD - SUX
Nonstop1h 48mUnited Airlines
Deal found 5/5$674

Sioux City to Chicago flights leaving soon

Find last-minute flight options from Sioux City to Chicago 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 2,719,943 searches. Data last updated May 6, 2024.
Sat 5/116:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Wed 5/159:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/4$444
Sat 5/116:50 pmSUX - ORD
2 stops14h 44mUnited Airlines
Wed 5/159:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/4$446
Sat 5/116:50 pmSUX - ORD
2 stops24h 05mUnited Airlines
Wed 5/159:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/5$456
Sat 5/116:50 pmSUX - ORD
1 stop16h 30mUnited Airlines
Wed 5/159:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/4$494
Sat 5/116:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Wed 5/159:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/5$504
Sat 5/116:50 pmSUX - ORD
1 stop16h 30mUnited Airlines
Wed 5/159:05 pmORD - SUX
Nonstop1h 44mUnited Airlines
Deal found 5/5$506
Sat 5/116:50 pmSUX - ORD
2 stops14h 44mUnited Airlines
Wed 5/157:23 amORD - SUX
2 stops10h 51mUnited Airlines
Deal found 5/4$530
Sat 5/116:50 pmSUX - ORD
2 stops12h 44mUnited Airlines
Wed 5/157:23 amORD - SUX
2 stops10h 51mUnited Airlines
Deal found 5/5$550
Sat 5/116:50 pmSUX - ORD
2 stops22h 19mUnited Airlines
Wed 5/155:00 amORD - SUX
1 stop13h 14mUnited Airlines
Deal found 5/4$563

One-way flights to Chicago from Sioux City

Search for one-way flight options from Sioux City to Chicago. 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 2,719,943 searches. Data last updated May 6, 2024.
Tue 5/216:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Deal found 5/5$111
Fri 11/17:45 amSUX - ORD
Nonstop1h 44mUnited Airlines
Deal found 5/4$150
Wed 5/226:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Deal found 5/5$156
Thu 5/236:26 amSUX - ORD
Nonstop1h 44mUnited Airlines
Deal found 5/4$190
Tue 5/216:50 pmSUX - ORD
1 stop16h 30mUnited Airlines
Deal found 5/5$245
Thu 5/166:29 amSUX - ORD
Nonstop1h 41mUnited Airlines
Deal found 5/5$280
Fri 11/13:31 pmSUX - ORD
2 stops17h 57mUnited Airlines
Deal found 5/4$298
Thu 5/166:50 pmSUX - ORD
1 stop14h 42mUnited Airlines
Deal found 5/5$307
Wed 5/226:50 pmSUX - ORD
1 stop14h 47mUnited Airlines
Deal found 5/5$320

Find flights from Sioux City to Chicago within your budget

Customize your flight search to find flights from Sioux City to Chicago 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 2,719,943 searches. Data last updated May 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$225 - $368

Route

Depart

Return

Price

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Tue 5/28

Nonstop1h 44m

Chicago O'Hare Intl

Wed 5/29

Nonstop1h 48m

$225

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 10/31

Nonstop1h 44m

Chicago O'Hare Intl

Mon 11/4

Nonstop1h 40m

$236

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Tue 6/11

Nonstop1h 44m

Chicago O'Hare Intl

Thu 6/27

Nonstop1h 48m

$284

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 8/9

Nonstop1h 44m

Chicago O'Hare Intl

Sun 8/11

Nonstop1h 48m

$295

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Tue 5/28

Nonstop1h 44m

Chicago O'Hare Intl

Wed 5/29

1 stop22h 14m

$319

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Thu 10/31

1 stop18h 12m

Chicago O'Hare Intl

Mon 11/4

Nonstop1h 40m

$332

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Wed 6/19

Nonstop1h 44m

Chicago O'Hare Intl

Mon 6/24

2 stops20h 46m

$348

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Fri 5/17

Nonstop1h 41m

Chicago O'Hare Intl

Mon 5/20

Nonstop1h 44m

$354

Sioux City Sioux GatewayChicago O'Hare Intl

SUX - ORD

SUXORD

Sioux City Sioux Gateway

Mon 6/10

Nonstop1h 44m

Chicago O'Hare Intl

Thu 6/27

1 stop21h 18m

$368

Flights are sorted by cheapest first

Deals found on 5/5

When is the cheapest time to fly from Sioux City to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Sioux City to Chicago. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Sioux City to Chicago flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Chicago by month

Plan your trip from Sioux City to Chicago by taking into account the cheapest months to travel. The average price of a one-way flight from Sioux City to Chicago is currently $229 while a round-trip flight costs $307. Price data was last updated on April 28, 2024.

Currently, February is the cheapest month in which you can book a flight from Sioux City to Chicago (average of $245). Flying from Sioux City to Chicago in June is currently the most expensive (average of $354). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$248

February

$245

March

$280

April

$267

May

$279

June

$354

July

$334

August

$274

September

$258

October

$248

November

$270

December

$248

Temperature and rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average temperature and rainfall totals by month.

CHI

Temperature

23 - 73.4 °F

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated May 6, 2024.
United Airlines
7.4
Good
11,090 reviews
Check prices

Boarding

7.7

Overall

7.4

Food

6.7

Comfort

7.2

Entertainment

7.1

Crew

8.1

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

United Airlines
7.4
Good
11,090 reviews
United Airlines
7.4
Good
11,090 reviews
Check prices

Boarding

7.7

Overall

7.4

Food

6.7

Comfort

7.2

Entertainment

7.1

Crew

8.1

Reviews

1 / 10

The staff were pleasant. There was no food or entertainment.

Related info for your journey

Find useful and relevant information for your journey from Sioux City to Chicago. 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 Chicago?

    Located just 7.0 mi from the city center, Sioux City Sioux Gateway is the airport most travelers will use when flying to Chicago from Sioux City. Booking flights from Sioux Gateway (SUX) to Chicago should be relatively easy as there are 0 daily outbound flights to Chicago from 1 airline.

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

    Yes, there are multiple flights from Sioux City to Chicago for under $300. The cheapest flight booked recently is on United Airlines for just $225, but on average you can expect to pay $362.

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

    Cheapflights has at least 8 direct flights from Sioux City to Chicago under $300. A good price for a nonstop flight from Sioux City to Chicago is less than $387.

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

    There are currently 10+ open flights from Sioux City to Chicago within the next 7 days for less than $500.

  • What is the cheapest airline to fly from Sioux City to Chicago round-trip?

    Our cheapest airline available from Sioux City to Chicago is United Airlines. Our recent data shows that you can find tickets from as low as $225 on this airline. United Airlines is priced at 20% lower than the current average price of a flight leaving 3 months from now.

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

    Looking at all options, your cheapest flight can be booked for $109. While the most popular route (Sioux City Sioux Gateway - Chicago O'Hare Intl) can be booked for $225 on average our data indicates $462 when flying from Sioux City to Chicago.

  • What does SUX to ORD mean?

    Great question - SUX to ORD just means Sioux City Sioux Gateway Airport to Chicago O'Hare Intl Airport. Now you’ll know what these unique codes when you look for flights! Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD) are some additional IATA codes for airports related to your trip.

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

    The amount of baggage you can bring on your Sioux City to Chicago 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 Chicago with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sioux City to Chicago 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 Chicago that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Sioux City to Chicago 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 Chicago that allow pets onboard?

    Many airlines flying from Sioux City to Chicago 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 Chicago?

    Yes, you can often find last-minute deals on Sioux City to Chicago 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 Chicago flight deals updated?

    The Sioux City to Chicago flight deals you see on this page were last updated on 5/5.

See more FAQs

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Alternative routes for Sioux City to Chicago
See prices for flight routes from nearby airports that may be better suited for you.

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Waterloo to St. Louis flights

Top airline flying from Sioux City to Chicago

Discover the top airline that operate flights from Sioux City to Chicago. 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 2,719,943 searches. Data last updated May 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$197Average$295FlexibilityNo cancel feeOn-time69%
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Search flights from Sioux City to Chicago by cabin class

Find flights from Sioux City to Chicago, 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 Chicago

Find hourly flight availability from Sioux City to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 6, 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

Weekly flight availability from Sioux City to Chicago

Explore weekly flight availability from Sioux City to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 6, 2024.
Sunday1daily flight
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Chicago from Sioux City today with Cheapflights!

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

Cheapflights helps you find that perfect flight to Chicago from Sioux City by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Chicago from Sioux City shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Sioux City to Chicago flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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