Cheap flights To Northern Illinois (CHI) from $39

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Cheap Flights to Northern Illinois from $39 One Way, $93 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Tue, May 20 - Sat, May 24
IAH
George Bush Intercontinental
ORD
O'Hare Intl.
$93 Roundtrip, found 5 hours ago
$93
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Tue, May 20 from George Bush Intercontinental to O'Hare Intl., returning Sat, May 24, priced at $93 found 5 hours ago
Tue, May 20 - Sun, May 25
IAH
George Bush Intercontinental
ORD
O'Hare Intl.
$99 Roundtrip, found 11 hours ago
$99
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Tue, May 20 from George Bush Intercontinental to O'Hare Intl., returning Sun, May 25, priced at $99 found 11 hours ago
Mon, May 19 - Thu, May 29
DEN
Denver Intl.
ORD
O'Hare Intl.
$102 Roundtrip, found 4 days ago
$102
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, May 19 from Denver Intl. to O'Hare Intl., returning Thu, May 29, priced at $102 found 4 days ago
Mon, May 19 - Tue, May 27
DEN
Denver Intl.
ORD
O'Hare Intl.
$103 Roundtrip, found 5 days ago
$103
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Mon, May 19 from Denver Intl. to O'Hare Intl., returning Tue, May 27, priced at $103 found 5 days ago
Tue, May 20 - Sat, May 24
IAH
George Bush Intercontinental
ORD
O'Hare Intl.
$108 Roundtrip, found 5 hours ago
$108
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Tue, May 20 from George Bush Intercontinental to O'Hare Intl., returning Sat, May 24, priced at $108 found 5 hours ago
Tue, May 13 - Wed, May 14
IAH
George Bush Intercontinental
ORD
O'Hare Intl.
$109 Roundtrip, found 1 hour ago
$109
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Tue, May 13 from George Bush Intercontinental to O'Hare Intl., returning Wed, May 14, priced at $109 found 1 hour ago
Tue, May 20 - Wed, Jun 4
IAH
George Bush Intercontinental
ORD
O'Hare Intl.
$113 Roundtrip, found 4 days ago
$113
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Tue, May 20 from George Bush Intercontinental to O'Hare Intl., returning Wed, Jun 4, priced at $113 found 4 days ago
Tue, May 13 - Tue, May 20
DEN
Denver Intl.
ORD
O'Hare Intl.
$151 Roundtrip, found 2 days ago
$151
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, May 13 from Denver Intl. to O'Hare Intl., returning Tue, May 20, priced at $151 found 2 days ago
Tue, May 13 - Tue, May 20
DEN
Denver Intl.
ORD
O'Hare Intl.
$154 Roundtrip, found 2 days ago
$154
Roundtrip
found 2 days ago
Select United flight, departing Tue, May 13 from Denver Intl. to O'Hare Intl., returning Tue, May 20, priced at $154 found 2 days ago
Sat, Aug 30 - Tue, Sep 2
DEN
Denver Intl.
ORD
O'Hare Intl.
$160 Roundtrip, found 3 days ago
$160
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Aug 30 from Denver Intl. to O'Hare Intl., returning Tue, Sep 2, priced at $160 found 3 days ago

Northern Illinois ORD Flight Information

Traveling To
Northern Illinois
Destination Airport IATA Code
CHI
Number of Airlines Serving
16
Airlines
Spirit Airlines, Frontier Airlines, Southwest Airlines, United, American Airlines
Flight Price
$93
Earliest Departing Flight
AA 3446 6:06AM EDT
Latest Departing Flight
BA 1817 Apr 28 7:14PM EDT

Flights Review

Mar 10, 2018

Great overall service. Smooth landing. Plane was even early.

A verified traveler
Denver to Chicago · United

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Northern Illinois economy flight packages

Price found within the past 48 hours. Click for updated prices.
Capital O Clayton House Motel Rockford
2.5-star property

Capital O Clayton House Motel Rockford

May 29 - Jun 1

3 night stay

Orlando (MCO) to Rockford (RFD)

Spirit Airlines • Coach

Rockford (RFD) to Orlando (MCO)

Frontier Airlines • Coach
per person
found 14 hours ago
Marriott Chicago Schaumburg
3.5-star property

Marriott Chicago Schaumburg

Jun 13 - Jun 15

2 night stay

Orlando (MCO) to Chicago (ORD)

Frontier Airlines • Coach

Chicago (ORD) to Orlando (MCO)

Spirit Airlines • Coach
per person
found 1 day ago
DoubleTree by Hilton Chicago Schaumburg
4.0-star property

DoubleTree by Hilton Chicago Schaumburg

May 28 - May 31

3 night stay

Los Angeles (LAX) to Chicago (ORD)

Frontier Airlines • Coach

Chicago (ORD) to Los Angeles (LAX)

Spirit Airlines • Coach
per person
found 1 day ago
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Northern Illinois first class flight packages

Price found within the past 48 hours. Click for updated prices.
Embassy Suites by Hilton Chicago Downtown River North
4.0-star property

Embassy Suites by Hilton Chicago Downtown River North

8.4/10 Very Good! (3,744 reviews)

Jun 9 - Jun 12

3 night stay

Los Angeles (LAX) to Chicago (ORD)

United • Roundtrip • FirstClass
per person
found 1 day ago
Very convenient place

Reviewed on Apr 18, 2025

Fairmont Chicago at Millennium Park
4.5-star property

Fairmont Chicago at Millennium Park

8.6/10 Excellent! (1,657 reviews)

Jun 9 - Jun 12

3 night stay

Los Angeles (LAX) to Chicago (ORD)

United • Roundtrip • FirstClass
per person
found 1 day ago
The staff is ok. Excellent location.

Reviewed on Mar 22, 2025

Swissotel - Chicago
4.5-star property

Swissotel - Chicago

8.8/10 Excellent! (1,988 reviews)

Jun 9 - Jun 12

3 night stay

Los Angeles (LAX) to Chicago (ORD)

United • Roundtrip • FirstClass
per person
found 1 day ago
Had an amazing stay beautiful hotel

Reviewed on Feb 16, 2025

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Northern Illinois

Are you in the mood for a cruise? Shop Orbitz today for cheap cruises and flights to Northern Illinois. Our award-winning cruise site features exclusive offers, information for first-timers and top destinations and activities. Make discount domestic and international travel plans in an instant with cutting-edge mobile tools from Orbitz.

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Register for Orbitz email updates and our cruise experts will notify you of bargain tickets on cruises as they’re posted. Install our free mobile apps on your iPad, iPhone or Android for easy booking and mobile-only savings on flights to Northern Illinois. Visit www.Orbitz.com to learn more about these amazing benefits and our 110% Best Price Guarantee.

First-Timers

Are you and your family cruise newbies? Orbitz offers Cruising 101 and Cruise FAQ to answer any questions you may have. Book your cruise and air travel with Orbitz On the Go for greater savings on Northern Illinois flights.

Ports and Play

Be sure to check our cruise page for free shore excursions, onboard spending, balcony upgrades and other perks. Orbitz offers last-minute, luxury, weekend and summer cruises. You can even designate which port you want to sail from and pre-book on-shore activities. Get there on the cheap with discounts on flights to Northern Illinois and Northern Illinois flights. Get more bang for your travel buck at Orbitz.

Frequently asked questions

What is the best airport to fly to in Northern Illinois?
Williamson County Regional Airport (MWA) is the major gateway for this terrific destination. Once you’ve stepped out of the terminal, the possibilities are endless when it comes to adventuring around Northern Illinois.
How much is a flight to Northern Illinois?
Travelers from far and wide bagged round-trip bargains ranging from $93 to $160 this week. Kicking off your journey from Houston (IAH)? The cheapest one-way prices were just $39.
How to book the cheapest flight to Northern Illinois?
Scoring cheap flights to Northern Illinois is as easy as booking with Orbitz. But if you’d like to make sure you’re walking away with the best flight deals around, here are some tips to keep in mind:

  • Departing from or landing at nearby airports can often be more affordable. Enter your preferred departure and arrival points. Next, select the ‘Nearby airports’ function below to explore your options.
  • Similarly, click on the ‘Show flexible dates’ link to compare the prices on days either side of your chosen departure. It’s possible to find cheaper flight deals if your travel dates are flexible.
  • Select ‘Show options’ to narrow down your search results. You can pick your preferred seating class and airline here. Under ‘Sort & Filter’ to the left, you can even specify whether you’d like to fly in the morning, afternoon or evening.
  • The early bird gets the best savings, so purchase your seats once you’ve settled on your travel dates. The most affordable fares get snapped up first and prices normally increase as the departure date nears.
  • Consider bundling your hotels, flights and car rentals into an Orbitz package to make your dollar go further.
  • Don’t fly during the busy season if you can. By avoiding summer, school vacations and other popular dates, you can save big on your airfares.

What is the best time to book a flight to Northern Illinois?
Book in January, February or August for unbeatable fares to Northern Illinois. Once you’ve found a bargain, lock it in — cheap flights are known to appear and then vanish in the click of a button.
What day of the week is the cheapest to book a flight to Northern Illinois?
In general, Tuesdays, Wednesdays and Saturdays are the cheapest days of the week to book a flight to Northern Illinois. If you want the best airfares, search across those days and you’re likely to catch an excellent flight deal.
What is the cheapest day of the week to fly to Northern Illinois?
You can land cheap flights to Northern Illinois by flying out on a Monday, according to Orbitz data from 2020. Tuesday is also more affordable, while Saturday has the most costly ticket prices. Whether you prefer to save a bundle or fly out on whichever day is convenient, you’ll always get a terrific deal with Orbitz.
What is the cheapest month to fly to Northern Illinois?
Consider traveling in August if you don’t want to put a dent in your budget. Orbitz data has found that it’s generally the best month for cheap flights to Northern Illinois. June is when fares really go up.
Which airlines allow free cancellation?
When you search for flights on Orbitz, select “Filter by flexible change policies.” This filter will quickly find all the airlines offering free cancellation within 24 hours of booking and no change fees. That means you can relax knowing that if your travel dates change, your flight can too.
What do I need for the flight to Northern Illinois?
Flying can be fun with a little pre-planning! Make your flight a relaxing one with these helpful tips:

  • Whether you print it out or use an electronic one, you’ll need your boarding pass to step foot on the plane. You’ll also need some kind of government-issued photo identification. If you’re flying internationally, make sure your passport is valid and you’ve looked into visa requirements.
  • Take some activities to keep you amused on your journey to Northern Illinois. Books, magazines and electronic gadgets like laptops and tablets are good ideas. Be sure to take a refillable water bottle with you too. Even on a short flight, it’s important to keep well-hydrated.
  • It can get very cool on the plane. If you’d prefer not to shiver your way through the flight, layer up.

How many direct flights are there to Northern Illinois?
With 13 direct flights each month, getting to Northern Illinois doesn’t have to be long and stressful. Cape Air offers nonstop services to this bustling destination.
How do I get cheap first-class/business deals to Northern Illinois?
If you think a business or first-class airfare is beyond your grasp, think again. Here are some terrific tips to help you book a premium flight to Northern Illinois for less:

  • Flexibility is everything. By being open to different travel dates, you’ll have more chances of spotting a sale on first or business-class airfares.
  • Find a budget airline that has business-class seats. They usually come with more space and a glass of bubbly — and a more appealing price.
  • Bid for an upgrade in online auctions (if available) or upgrade your seat through your frequent flyer program.

What is the best time to go to Northern Illinois?
Northern Illinois is a wonderful getaway destination year-round, but the most popular months are June, July and August. If you’re into warm weather, make your way there during the summer months. Like most places in the Northern Hemisphere, the summer season commences June 20. At this time, temperatures usually float between 65 ºF and 80 ºF during the daytime.

Nearby

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.