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O'Hare Intl

$55+ Cheap flights from Illinois to O'Hare Intl (ORD)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ORD
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Illinois to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to O'Hare Intl (ORD). 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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$88
(Priceline)

One-way from

$55
(Frontier)

Popular in

April

Cheapest in

December

Average price

$268

Good round-trip deal

$171 or less

Good one-way deal

$92 or less
Provider with most accurate pricing for Moline Quad-City-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Moline Quad-City-Chicago (CHI) flights.
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From Illinois to Chicago O'Hare Intl
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One-way flight from Illinois to Chicago O'Hare Intl
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Highest demand for flights based on searches. 11% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Illinois to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Illinois to Chicago O'Hare Intl.
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Find flight deals from Illinois to O'Hare Intl

Cheapest flights from Illinois to O'Hare Intl
Explore the most affordable flight options available from Illinois to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Priceline deal was found by Cheapflights users on 1/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/146:00 amBRL - ORD
Nonstop1h 40mSouthern / Mokulele
Sat 3/228:25 amORD - BRL
Nonstop1h 40mSouthern / Mokulele
Deal found 1/30$88
This Gotogate deal was found by Cheapflights users on 1/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1411:00 amSTL - ORD
Nonstop1h 17mMultiple Airlines
Mon 3/178:25 amORD - STL
1 stop11h 45mMultiple Airlines
Deal found 1/29$122
This Mytrip deal was found by Cheapflights users on 1/30. 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 3/163:55 pmDBQ - ORD
Nonstop0h 55mDenver Air Connection
Fri 3/212:30 pmORD - DBQ
Nonstop0h 55mDenver Air Connection
Deal found 1/30$130
This Gotogate deal was found by Cheapflights users on 1/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2712:15 pmSTL - ORD
1 stop19h 25mSouthern / Mokulele
Thu 3/68:25 amORD - STL
1 stop11h 45mSouthern / Mokulele
Deal found 1/29$130
This United Airlines deal was found by Cheapflights users on 1/29. 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 2/263:32 pmSTL - ORD
Nonstop1h 22mUnited Airlines
Thu 2/271:15 pmORD - STL
Nonstop1h 21mUnited Airlines
Deal found 1/29$137
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 2/143:08 pmDEC - ORD
Nonstop1h 04mUnited Airlines
Sun 2/161:30 pmORD - DEC
Nonstop0h 58mUnited Airlines
Deal found 1/29$149
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 2/1912:00 pmSTL - ORD
Nonstop1h 22mAmerican Airlines
Fri 2/288:25 amORD - STL
Nonstop1h 27mAmerican Airlines
Deal found 1/28$152
This Southwest deal was found by Cheapflights users on 1/30. 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.
Wed 2/267:15 amSTL - ORD
1 stop5h 45mSouthwest
Wed 3/56:15 amORD - STL
2 stops10h 40mSouthwest
Deal found 1/30$162
This American Airlines deal was found by Cheapflights users on 1/29. 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 2/286:32 pmMLI - ORD
Nonstop1h 10mAmerican Airlines
Sat 3/110:10 amORD - MLI
Nonstop0h 56mAmerican Airlines
Deal found 1/29$179
This Delta deal was found by Cheapflights users on 1/30. 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.
Mon 3/35:30 pmSTL - ORD
1 stop4h 28mDelta
Wed 3/56:45 amORD - STL
2 stops10h 08mDelta
Deal found 1/30$182
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Sat 3/155:50 amEVV - ORD
Nonstop1h 38mAmerican Airlines
Sat 3/228:36 pmORD - EVV
Nonstop1h 21mAmerican Airlines
Deal found 1/29$191
This United Airlines deal was found by Cheapflights users on 1/30. 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 3/296:30 amMLI - ORD
Nonstop1h 07mUnited Airlines
Sun 3/308:20 pmORD - MLI
Nonstop1h 15mUnited Airlines
Deal found 1/30$239

Find flights from Illinois to O'Hare Intl within your budget

Customize your flight search to find flights from Illinois to O'Hare Intl 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 2,558,603 searches. Data last updated January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BurlingtonChicago

BRL - ORD

BRLORD

Burlington

Fri 3/14

6:00 am-7:40 am

Nonstop1h 40m

Chicago O'Hare Intl

Sat 3/22

8:25 am-10:05 am

Nonstop1h 40m

$88

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Fri 3/14

11:00 am-12:17 pm

Nonstop1h 17m

Chicago O'Hare Intl

Mon 3/17

8:25 am-8:10 pm

1 stop11h 45m

$122

DubuqueChicago

DBQ - ORD

DBQORD

Dubuque

Sun 3/16

3:55 pm-4:50 pm

Nonstop0h 55m

Chicago O'Hare Intl

Fri 3/21

2:30 pm-3:25 pm

Nonstop0h 55m

$130

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 2/27

12:15 pm-7:40 am

1 stop19h 25m

Chicago O'Hare Intl

Thu 3/6

8:25 am-8:10 pm

1 stop11h 45m

$130

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 2/27

8:05 am-9:36 am

Nonstop1h 31m

Chicago O'Hare Intl

Thu 3/6

1:01 pm-2:23 pm

Nonstop1h 22m

$137

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Fri 2/14

3:08 pm-4:12 pm

Nonstop1h 04m

Chicago O'Hare Intl

Sun 2/16

1:30 pm-2:28 pm

Nonstop0h 58m

$149

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 5/13

8:00 am-2:00 pm

1 stop6h 00m

Chicago O'Hare Intl

Tue 5/13

5:45 pm-11:00 pm

1 stop5h 15m

$151

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Fri 2/21

6:36 pm-7:54 pm

Nonstop1h 18m

Chicago O'Hare Intl

Sat 2/22

9:55 am-11:21 am

Nonstop1h 26m

$167

MolineChicago

MLI - ORD

MLIORD

Moline Quad-City

Fri 2/28

6:32 pm-7:42 pm

Nonstop1h 10m

Chicago O'Hare Intl

Sat 3/1

10:10 am-11:06 am

Nonstop0h 56m

$179

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 3/3

5:30 pm-9:58 pm

1 stop4h 28m

Chicago O'Hare Intl

Wed 3/5

6:45 am-4:53 pm

2 stops10h 08m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 43 results
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Best time to book a flight from Illinois to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl

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

What is the cheapest month to book a flight from Illinois to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Illinois to Chicago O'Hare Intl Airport (average of $245). Flying from Illinois to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $325). 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 ORD?

Find hourly flight availability from Illinois to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

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

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated January 30, 2025.
Read through reviews of airlines operating flights from Illinois to Chicago, such as Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,454 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,913 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

  • What are the cheapest airlines to fly from Illinois to Chicago O'Hare Intl Airport one-way?

    The cheapest airlines for a one-way flight from Illinois to Chicago O'Hare Intl Airport are Frontier ($55), Southern / Mokulele ($62), and Denver Air Connection ($64).

  • What are the most popular routes from Illinois to Chicago O'Hare Intl Airport?

    The most popular route from Illinois to Chicago O'Hare Intl Airport is Lambert-St Louis - Chicago O'Hare Intl. You may also consider Moline Quad-City - Chicago O'Hare Intl or Evansville Dress Regional - Chicago O'Hare Intl.

  • Can I find deals for flights from Illinois to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Illinois to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to O'Hare Intl?

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

  • Can I find deals for business class flights from Illinois to O'Hare Intl?

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

  • What is the cheapest month to book a flight from Illinois to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Chicago O'Hare Intl Airport (average of $245). Flying from Illinois to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $325). 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

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Naperville
Rosemont
Beloit
Racine
Hoffman Estates
Schaumburg
Rockford
Skokie
Tinley Park
Arlington Heights
Northbrook
Evanston
Des Plaines
Joliet
Orland Park
Merrillville
Kenosha
Lake Geneva
New Buffalo
Glenview

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Alternative routes for Illinois to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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San Francisco to Midway flights
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Reagan-National to Midway flights
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Burbank to O'Hare Intl flights
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Ontario to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
San Diego to O'Hare Intl flights
Dulles Intl to Midway flights
Love Field to O'Hare Intl flights
Minneapolis to Midway flights
Philadelphia to Midway flights
Baltimore to Midway flights
Boston to Midway flights
Denver to Midway flights
Hartford to O'Hare Intl flights
Tampa to O'Hare Intl flights
Sky Harbor Intl to Midway flights
Seattle to Midway flights
Miami to O'Hare Intl flights
Portland to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
Hobby to O'Hare Intl flights
Hobby to Midway flights
Cleveland to O'Hare Intl flights

Top 2 airlines flying from Illinois to O'Hare Intl

Discover the top 2 airlines that operate flights from Illinois to O'Hare Intl. 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 2,558,603 searches. Data last updated January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$178Average$259FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$344FlexibilityNo cancel feeOn-time71%
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