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$63+ Cheap flights from Illinois to Chicago (CHI)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CHI
Nov 9 — Nov 161
Sat 11/9
Sat 11/16
1 adult, Economy
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Find flight deals from Illinois to Chicago

Cheapest flights from Illinois to Chicago
Explore the most affordable flight options available from Illinois to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2024.

This Mytrip deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/212:00 pmSTL - ORD
1 stop19h 40mSouthern / Mokulele
Mon 12/98:15 amORD - STL
1 stop8h 30mSouthern / Mokulele
Deal found 11/3$114
This Mytrip deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/174:17 pmSTL - MDW
1 stop19h 52mFrontier
Wed 11/209:45 amMDW - STL
1 stop14h 09mFrontier
Deal found 11/3$123
This Mytrip deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/174:17 pmSTL - ORD
1 stop17h 30mFrontier
Wed 11/2012:21 pmORD - STL
1 stop11h 33mFrontier
Deal found 11/3$123
This United Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/273:19 pmDEC - ORD
Nonstop1h 08mUnited Airlines
Sat 11/309:50 amORD - DEC
Nonstop1h 03mUnited Airlines
Deal found 11/3$148
This Mytrip deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/165:25 pmSTL - ORD
1 stop5h 47mMultiple Airlines
Sun 11/178:15 amORD - STL
1 stop3h 55mMultiple Airlines
Deal found 11/2$156
This Mytrip deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/33:55 pmDBQ - ORD
Nonstop0h 55mDenver Air Connection
Mon 12/92:30 pmORD - DBQ
Nonstop0h 55mDenver Air Connection
Deal found 11/3$171
This United Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/95:46 pmMLI - ORD
Nonstop1h 08mUnited Airlines
Mon 12/169:10 amORD - MLI
Nonstop1h 12mUnited Airlines
Deal found 11/4$179
This American Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/225:30 amMLI - ORD
Nonstop1h 14mAmerican Airlines
Sun 11/249:30 pmORD - MLI
Nonstop1h 05mAmerican Airlines
Deal found 11/3$184
This FareScan deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/175:29 pmSTL - ORD
2 stops20h 15mSpirit Airlines
Wed 11/201:09 pmORD - STL
2 stops27h 17mSpirit Airlines
Deal found 11/3$220
This United Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/710:55 amPIA - ORD
Nonstop1h 09mUnited Airlines
Sat 12/149:13 amORD - PIA
Nonstop1h 06mUnited Airlines
Deal found 11/4$229
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/236:30 amSTL - ORD
1 stop6h 20mDelta
Sun 11/246:17 amORD - STL
1 stop4h 23mDelta
Deal found 11/3$256
This Southwest deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/296:30 amSTL - MDW
Nonstop1h 10mSouthwest
Fri 11/299:50 amMDW - STL
Nonstop1h 15mSouthwest
Deal found 11/3$263

Find flights from Illinois to Chicago within your budget

Customize your flight search to find flights from Illinois 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 2,455,398 searches. Data last updated November 4, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Fri 12/6

3:34 pm-9:02 pm

1 stop5h 28m

$64

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 12/14

12:15 pm-7:40 am

1 stop19h 25m

$66

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Wed 11/20

11:35 am-12:43 pm

Nonstop1h 08m

$98

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 12/3

5:21 pm-8:15 pm

2 stops26h 54m

$102

DubuqueChicago

DBQ - ORD

DBQORD

Dubuque

Wed 12/4

3:55 pm-4:50 pm

Nonstop0h 55m

$109

PeoriaChicago

PIA - ORD

PIAORD

Greater Peoria

Sun 11/24

4:52 pm-5:59 pm

Nonstop1h 07m

$115

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sun 11/24

10:35 am-11:45 am

Nonstop1h 10m

$119

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 1/11

5:05 pm-9:52 am

1 stop16h 47m

$64

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Wed 12/25

5:17 pm-10:06 pm

1 stop4h 49m

$128

PeoriaChicago

PIA - ORD

PIAORD

Greater Peoria

Mon 11/11

9:32 pm-6:49 pm

2 stops21h 17m

$205

Flights are sorted by cheapest first

Deals found on 11/3

Showing 1-10 of 53 results
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Best time to book a flight from Illinois to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to Chicago

Get recent, data-driven insights about flights from Illinois to Chicago including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Chicago?

Currently, September is the cheapest month in which you can book a flight from Illinois to Chicago (average of $232). Flying from Illinois to Chicago in June is currently the most expensive (average of $308). 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.

What is the cheapest time of day to fly from IL to CHI?

Find hourly flight availability from Illinois 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 November 4, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Chicago as you normally would.

Rainfall in Chicago by month

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

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 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 November 4, 2024.
Read reviews from past customers who have flown Delta, American Airlines and Southern / Mokulele from Illinois to Chicago. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,089 reviews

Entertainment

7.7

Food

7.2

Comfort

8.1

Overall

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,089 reviews
Southwest
8.1
Very good
5,089 reviews

Entertainment

7.7

Food

7.2

Comfort

8.1

Overall

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,829 reviews
Southwest
8.1
Very good
5,089 reviews

Entertainment

7.7

Food

7.2

Comfort

8.1

Overall

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,226 reviews
Southwest
8.1
Very good
5,089 reviews

Entertainment

7.7

Food

7.2

Comfort

8.1

Overall

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

WestJet
7.3
Good
2,803 reviews
Southwest
8.1
Very good
5,089 reviews

Entertainment

7.7

Food

7.2

Comfort

8.1

Overall

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,089 reviews

Entertainment

7.7

Food

7.2

Comfort

8.1

Overall

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

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

  • Can I find flights from Illinois to Chicago for under $200 on Cheapflights?

    Yes, there are multiple flights from Illinois to Chicago for under $200. The cheapest flight booked recently is on Southern / Mokulele for just $114, but on average you can expect to pay $223.

  • Are there nonstop flights from Illinois to Chicago for under $200 on Cheapflights?

    Cheapflights has at least 12 direct flights from Illinois to Chicago under $200. A good price for a nonstop flight from Illinois to Chicago is less than $239.

  • Are there last-minute flights available from Illinois to Chicago for under $200?

    There are currently 13+ open flights from Illinois to Chicago within the next 7 days for less than $200.

  • What are the cheapest airlines to fly from Illinois to Chicago one-way?

    $63 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southern / Mokulele and United Airlines, with prices starting from $63 and $98, respectively.

  • What are the most popular routes from Illinois to Chicago?

    The most popular flight routes from Illinois to Chicago are Lambert-St Louis - Chicago O'Hare Intl, Lambert-St Louis - Chicago Midway and Greater Peoria - Chicago O'Hare Intl.

  • What does ORD to ORD mean?

    This is defined as Chicago O'Hare Intl Airport (ORD) and Chicago O'Hare Intl Airport (ORD). Codes like Chicago O'Hare Intl Airport are often used to just call airports uniquely. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD).

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

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

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

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

  • How can I find direct flights from Illinois to Chicago?

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

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

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

    Many airlines flying from Illinois 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 Illinois to Chicago?

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

    The Illinois to Chicago flight deals you see on this page were last updated on 11/4.

  • What is the cheapest month to book a flight from Illinois to Chicago?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Chicago (average of $232). Flying from Illinois to Chicago in June is currently the most expensive (average of $308). 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.

See more FAQs

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Alternative routes for Illinois to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Illinois to Chicago

Discover the top 2 airlines that operate flights from Illinois 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 2,455,398 searches. Data last updated November 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$158Average$246FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$178Average$368FlexibilityNo cancel feeOn-time71%
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