Cheap flights To Northern Illinois (CHI) from $25

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Cheap Flights to Northern Illinois from $25 One Way, $49 Round Trip

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

Wed, Feb 25 - Sat, Feb 28
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$49 Roundtrip, found 3 hours ago
$49
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Wed, Feb 25 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sat, Feb 28, priced at $49 found 3 hours ago
Tue, Mar 3 - Tue, Mar 10
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$50 Roundtrip, just found
$50
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Mar 3 from Newark Liberty Intl. Airport to O'Hare Intl., returning Tue, Mar 10, priced at $50 just found
Mon, Mar 2 - Mon, Mar 9
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$51 Roundtrip, found 1 hour ago
$51
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Mon, Mar 2 from Newark Liberty Intl. Airport to O'Hare Intl., returning Mon, Mar 9, priced at $51 found 1 hour ago
Tue, Mar 3 - Tue, Mar 17
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$53 Roundtrip, found 1 day ago
$53
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, Mar 3 from Newark Liberty Intl. Airport to O'Hare Intl., returning Tue, Mar 17, priced at $53 found 1 day ago
Wed, Feb 25 - Thu, Feb 26
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$54 Roundtrip, just found
$54
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Feb 25 from Newark Liberty Intl. Airport to O'Hare Intl., returning Thu, Feb 26, priced at $54 just found
Tue, Mar 24 - Sat, Mar 28
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$57 Roundtrip, found 1 day ago
$57
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, Mar 24 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sat, Mar 28, priced at $57 found 1 day ago
Fri, Mar 6 - Tue, Mar 24
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$58 Roundtrip, found 2 days ago
$58
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Fri, Mar 6 from Newark Liberty Intl. Airport to O'Hare Intl., returning Tue, Mar 24, priced at $58 found 2 days ago
Wed, Feb 25 - Sun, Mar 1
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$61 Roundtrip, found 4 days ago
$61
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Wed, Feb 25 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sun, Mar 1, priced at $61 found 4 days ago
Sun, Mar 8 - Tue, Mar 10
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$62 Roundtrip, found 3 days ago
$62
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Sun, Mar 8 from Newark Liberty Intl. Airport to O'Hare Intl., returning Tue, Mar 10, priced at $62 found 3 days ago
Wed, Mar 4 - Wed, Mar 4
LGA
LaGuardia
ORD
O'Hare Intl.
$63 Roundtrip, found 3 hours ago
$63
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Wed, Mar 4 from LaGuardia to O'Hare Intl., returning Wed, Mar 4, priced at $63 found 3 hours ago

Northern Illinois Flight Information

Traveling To
Northern Illinois
Destination Airport IATA Code
CHI
Number of Airlines Serving
Airlines
Spirit Airlines, American Airlines
Flight Price
$49
Earliest Departing Flight
Latest Departing Flight

Flights Review

Mar 10, 2018

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

A verified traveler
Denver to Chicago · United

Book Your Flight & Hotel Together & Save

Northern Illinois economy flight packages

Price found within the past 48 hours. Click for updated prices.
Springhill Suites by Marriott Chicago Downtown/ River North
3.5-star property

Springhill Suites by Marriott Chicago Downtown/ River North

Mar 6 - Mar 11

5 night stay

Newark Liberty Intl. Airport (EWR) to Chicago (ORD)

Spirit Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $565, price is now $389 per person
$389
per person
found 1 day ago
Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

Mar 6 - Mar 11

5 night stay

Newark Liberty Intl. Airport (EWR) to Chicago (ORD)

Spirit Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $796, price is now $469 per person
$469
per person
found 1 day ago
Trump International Hotel & Tower Chicago
5.0-star property

Trump International Hotel & Tower Chicago

Mar 19 - Mar 22

3 night stay

Newark Liberty Intl. Airport (EWR) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,012, price is now $689 per person
$689
per person
found 1 day ago
Don't see what you're looking for?
See all available trips from Newark Liberty Intl. Airport to Northern Illinois
View all trips

Northern Illinois first class 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

8.6/10 Excellent! (1,633 reviews)

Mar 29 - Apr 1

3 night stay

Jacksonville (JAX) to Chicago (ORD)

American Airlines • Roundtrip • FirstClass
Price was $909, price is now $841 per person
$841
per person
found 6 hours ago
Room was excellent, clean and comfortable. Staff was freindly and helpful.

Reviewed on Jan 16, 2026

Hilton Chicago O'Hare Airport
4.0-star property

Hilton Chicago O'Hare Airport

8.2/10 Very Good! (2,158 reviews)

Mar 29 - Apr 1

3 night stay

Jacksonville (JAX) to Chicago (ORD)

American Airlines • Roundtrip • FirstClass
Price was $1,234, price is now $1,098 per person
$1,098
per person
found 6 hours ago
Awesome hotel, an island of peace and calm and first class treatment in a sea of chaos at O'Hare airport. Staff, restaurant, services--worth every penny. Early departure? Stay here the night before. We did. Calmly woke up and walked to the terminal thru the underground walkways. Truly pleasant and memorable stay.

Reviewed on Nov 11, 2025

Fairmont Chicago at Millennium Park
4.5-star property

Fairmont Chicago at Millennium Park

8.6/10 Excellent! (2,008 reviews)

Mar 21 - Mar 24

3 night stay

Los Angeles (LAX) to Chicago (ORD)

American Airlines • FirstClass

Chicago (ORD) to Los Angeles (LAX)

Delta • FirstClass
Price was $1,103, price is now $992 per person
$992
per person
found 16 hours ago
Solid place to stay

Reviewed on Nov 5, 2025

Don't see what you're looking for?
See all available trips from Jacksonville to Northern Illinois
View all trips

Northern Illinois

Traveling to Northern Illinois and need a cheap flight? Orbitz has great deals on flights to Northern Illinois right now. Plus, we offer big discounts on hotel rooms and car rentals for a great money-saving trip.

Find Low Cost Flights to Northern Illinois Quickly and Hassle-Free

There are many Internet sites that promise cheap Northern Illinois flights, but a busy, bargain-minded trip planner needs more than just budget air tickets. Not only does Orbitz offer the best deals for domestic and international air fare, but we also provide the resources and tools to help you plan your flights to Northern Illinois, book your lodging, and look up key attractions in Northern Illinois. Our easy search tools and guaranteed low prices let you budget your time and your money so you have more of both to spend on your vacation.

New Apps Make Booking Northern Illinois Flights Easier Than Ever

You no longer need to be sitting at your computer to find amazing Orbitz sales for flights to Northern Illinois now we offer cutting-edge mobile tools for many Android and iOS gadgets. These free apps allow you to run a search for discount air fare, look for special vacation packages, or check on your booked Northern Illinois flights from any location. Some special deals are only available for mobile customers, so be sure to take advantage of these free downloads today.

Orbitz Customers Are Truly #1

Orbitz takes pride in providing the best customer experience possible, and that effort doesn't end with discount flights to Northern Illinois or user-friendly mobile apps and web tools. Orbitz Customer Service is always ready to answer questions and help you with booking, planning, or canceling your Northern Illinois flights. When you need us, we’re here for you!

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 $49 to $69 this week. Kicking off your journey from New York (EWR)? The cheapest one-way prices were just $25.
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.