Cheap flights To Northern Illinois (CHI) from $51

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Cheap Flights to Northern Illinois from $51 One Way, $110 Round Trip

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

Mon, Apr 27 - Mon, May 4
CLT
Charlotte-Douglas Intl.
ORD
O'Hare Intl.
$110 Roundtrip, found 4 days ago
$110
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Apr 27 from Charlotte-Douglas Intl. to O'Hare Intl., returning Mon, May 4, priced at $110 found 4 days ago
Fri, May 1 - Mon, May 4
CLT
Charlotte-Douglas Intl.
ORD
O'Hare Intl.
$121 Roundtrip, just found
$121
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, May 1 from Charlotte-Douglas Intl. to O'Hare Intl., returning Mon, May 4, priced at $121 just found
Thu, Apr 23 - Mon, Apr 27
CLT
Charlotte-Douglas Intl.
ORD
O'Hare Intl.
$121 Roundtrip, just found
$121
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Apr 23 from Charlotte-Douglas Intl. to O'Hare Intl., returning Mon, Apr 27, priced at $121 just found
Mon, Apr 27 - Thu, Apr 30
CLT
Charlotte-Douglas Intl.
ORD
O'Hare Intl.
$125 Roundtrip, found 2 days ago
$125
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Apr 27 from Charlotte-Douglas Intl. to O'Hare Intl., returning Thu, Apr 30, priced at $125 found 2 days ago
Thu, Apr 30 - Mon, May 4
CLT
Charlotte-Douglas Intl.
ORD
O'Hare Intl.
$126 Roundtrip, found 1 day ago
$126
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Apr 30 from Charlotte-Douglas Intl. to O'Hare Intl., returning Mon, May 4, priced at $126 found 1 day ago
Fri, May 1 - Mon, May 4
CLT
Charlotte-Douglas Intl.
ORD
O'Hare Intl.
$127 Roundtrip, just found
$127
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, May 1 from Charlotte-Douglas Intl. to O'Hare Intl., returning Mon, May 4, priced at $127 just found
Thu, May 7 - Tue, May 12
DAL
Love Field
ORD
O'Hare Intl.
$199 Roundtrip, found 8 hours ago
$199
Roundtrip
found 8 hours ago
Select Southwest Airlines flight, departing Thu, May 7 from Love Field to O'Hare Intl., returning Tue, May 12, priced at $199 found 8 hours ago
Sat, May 2 - Tue, May 5
SEA
Seattle - Tacoma Intl.
ORD
O'Hare Intl.
$218 Roundtrip, found 8 hours ago
$218
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Sat, May 2 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, May 5, priced at $218 found 8 hours ago
Tue, Jun 2 - Wed, Jun 3
DAL
Love Field
ORD
O'Hare Intl.
$222 Roundtrip, found 3 hours ago
$222
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Jun 2 from Love Field to O'Hare Intl., returning Wed, Jun 3, priced at $222 found 3 hours ago
Thu, May 7 - Fri, May 8
CLT
Charlotte-Douglas Intl.
RFD
Greater Rockford
$236 Roundtrip, found 1 day ago
$236
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 7 from Charlotte-Douglas Intl. to Greater Rockford, returning Fri, May 8, priced at $236 found 1 day ago

Northern Illinois Flight Information

Traveling To
Northern Illinois
Destination Airport IATA Code
CHI
Number of Airlines Serving
Airlines
Frontier Airlines, Spirit Airlines, Southwest Airlines, Delta, American Airlines
Flight Price
$110
Earliest Departing Flight
Latest Departing Flight

Book Your Flight & Hotel Together & Save

Northern Illinois economy flight packages

Price found within the past 48 hours. Click for updated prices.
Sonesta Chicago O'Hare Airport Rosemont
3.0-star property

Sonesta Chicago O'Hare Airport Rosemont

May 18 - May 21

3 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $418, price is now $294 per person
$294
per person
found 1 day ago
Sable at Navy Pier Chicago, Curio Collection by Hilton
4.0-star property

Sable at Navy Pier Chicago, Curio Collection by Hilton

May 21 - May 25

4 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,088, price is now $771 per person
$771
per person
found 1 day ago
Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

May 8 - May 10

2 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $633, price is now $454 per person
$454
per person
found 1 day ago
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Northern Illinois premium economy flight packages

Price found within the past 48 hours. Click for updated prices.
Holiday Inn Express & Suites Chicago O'Hare Airport by IHG
3.0-star property

Holiday Inn Express & Suites Chicago O'Hare Airport by IHG

8.8/10 Excellent! (1,779 reviews)

May 27 - Jun 2

6 night stay

New York (JFK) to Chicago (ORD)

JetBlue Airways • Roundtrip • PremiumEconomy
Price was $1,088, price is now $849 per person
$849
per person
found 1 day ago
The only thing I was upset about it is they charge me for parking lot

Reviewed on Oct 3, 2025

Staybridge Suites Chicago O'Hare - Rosemont by IHG
3.0-star property

Staybridge Suites Chicago O'Hare - Rosemont by IHG

9.2/10 Wonderful! (1,150 reviews)

May 27 - Jun 2

6 night stay

New York (JFK) to Chicago (ORD)

JetBlue Airways • Roundtrip • PremiumEconomy
Price was $1,193, price is now $926 per person
$926
per person
found 1 day ago
Spotless room, clean breakfast area, shuttles on time.

Reviewed on Dec 4, 2025

Holiday Inn Chicago O'Hare – Rosemont by IHG
3.0-star property

Holiday Inn Chicago O'Hare – Rosemont by IHG

9/10 Wonderful! (2,875 reviews)

May 27 - Jun 2

6 night stay

New York (JFK) to Chicago (ORD)

JetBlue Airways • Roundtrip • PremiumEconomy
Price was $1,117, price is now $870 per person
$870
per person
found 1 day ago
Staff was so kind, shuttle drivers were amazing both in the middle of the night and the morning.

Reviewed on Feb 20, 2026

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Northern Illinois first class flight packages

Price found within the past 48 hours. Click for updated prices.
Hotel Felix River North/Magnificent Mile
4.0-star property

Hotel Felix River North/Magnificent Mile

8.2/10 Very Good! (2,582 reviews)

May 15 - May 18

3 night stay

Atlanta (ATL) to Chicago (ORD)

American Airlines • Roundtrip • FirstClass
Price was $1,414, price is now $1,148 per person
$1,148
per person
found 1 day ago
The rooms were clean and smelled fresh.

Reviewed on Jan 8, 2026

Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

9.4/10 Exceptional! (3,495 reviews)

May 15 - May 18

3 night stay

Atlanta (ATL) to Chicago (ORD)

American Airlines • Roundtrip • FirstClass
Price was $1,812, price is now $1,358 per person
$1,358
per person
found 1 day ago
I recommend 100% Everything was good, the staff, room and the food. Also, it is located in a good area.

Reviewed on Jan 14, 2026

Eurostars Magnificent Mile
4.0-star property

Eurostars Magnificent Mile

9/10 Wonderful! (3,314 reviews)

May 15 - May 18

3 night stay

Atlanta (ATL) to Chicago (ORD)

American Airlines • Roundtrip • FirstClass
Price was $1,517, price is now $1,166 per person
$1,166
per person
found 1 day ago
In convenient area either by walking or uber

Reviewed on Oct 18, 2025

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Northern Illinois

Orbitz provides convenient, one-stop shopping for travelers looking for budget flights to Northern Illinois or any other low fare domestic or international air travel.

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Now it is even faster to find exclusive deals and book cheap Northern Illinois flights from any location with our new Orbitz apps. These cutting-edge mobile tools are available free to anyone with an Android device, iPad, or iPhone. Look up Northern Illinois's most popular attractions, best restaurants, and entertainment venues or check on your flights to Northern Illinois and make changes to your itinerary while waiting in line for your latte.

Stay on Budget, Earn Miles with Bargain Northern Illinois Flights

You can find amazing discount fares with Orbitz’s guaranteed low prices or take advantage of last-minute sales and special travel packages. You can also earn points towards your airline frequent flyer programs when you book qualified flights to Northern Illinois. That means you can rack up money-saving points and miles for future use while saving money now.

We Are Just a Phone Call Away If You Need Us

Booking, changing, or canceling your Northern Illinois flights is a breeze with Orbitz’s online and mobile tools, but that doesn't mean that we leave you hanging if you want to speak with one of our representatives. If you need help, just contact our Customer Service by email or phone. To enjoy a less stressful trip, be sure to sign up for instant alerts so we can send you any updates or delays relating to your flights to Northern Illinois to your mobile phone or email.

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 $110 to $236 this week. Kicking off your journey from Charlotte (CLT)? The cheapest one-way prices were just $51.
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.

More to Explore

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.