Find the Cheapest Flight to Northern Illinois

Popular airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Alaska Airlines

    Alaska Airlines

  • Qatar Airways

    Qatar Airways

  • KLM

    KLM

  • Lufthansa

    Lufthansa

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Expedia flights to Northern Illinois

Expedia.com.ph has a mission to help you to locate cheap flights to Northern Illinois. Expedia offers a greater selection of airlines, schedules and better rates than anyone else. Expedia helps you find cheap airfare on last-minute plane tickets to Northern Illinois - and can also help you save more by offering hotel bookings in Northern Illinois.

For budget conscious travelers, last-minute flights to Northern Illinois allow those with more flexible schedules to save even more. Cheap flights to Northern Illinois are frequently updated, so check Expedia often. Our partners allow us to give you cheap airfares.

If you need additional assistance, Expedia Customer Service Representatives are available 24 hours a day to help you with any questions you may have when booking cheap flights to Northern Illinois. When booking either domestic or cheap international flights to Northern Illinois on Expedia, you can travel with confidence that you have booked the best flight at the lowest price.

Frequently asked questions

How do I find cheap flights to Northern Illinois that have flexible change policies?
Search for your cheap flights to Northern Illinois, then tick the "No change fee" box under the "Flexible change policies" heading. It's that simple. We know that things can change and flexibility is important, so book with confidence with Expedia.
Which airlines fly to Northern Illinois?
A good selection of airlines fly to destinations in or close to Northern Illinois. Your vacation is just a few clicks away with these popular carriers:

  • United Airlines - 13,058 flights to or near Northern Illinois each month, including 12,950 flights to O'Hare Intl. Airport (ORD) and 108 flights to Quad City Intl. Airport (MLI) per month.
  • American Airlines - 8,977 flights to or near Northern Illinois each month, including 8,855 flights to O'Hare Intl. Airport (ORD) and 121 flights to Quad City Intl. Airport (MLI) per month.
  • Delta Air Lines - 1,282 flights to or near Northern Illinois each month, including 1,222 flights to O'Hare Intl. Airport (ORD) and 60 flights to Quad City Intl. Airport (MLI) per month.

How can I find cheap tickets to Northern Illinois?
A good strategy for nabbing cheap fares is to be flexible with your dates. Begin with searching for your flight to Northern Illinois, then click on the "flexible dates" box to see prices for nearby days. Another good tip? Book well ahead. To give you an idea of fares, was the best price for a flight to Northern Illinois in the last seven days.
How much is a flight to Northern Illinois?
One-way flights from () sold for just in the last seven days. During this time, the price of a return air ticket to Northern Illinois ranged between and . If you find a bargain ticket, book as fast as you can — these prices don't stick around for long.
What are the most popular airports to fly into in Northern Illinois?
Cruise into one of these top Northern Illinois airports and you'll be in the perfect position to discover all that this terrific region has to offer:

  • O'Hare Intl. Airport (ORD) - 25,318 flights per month.
  • Quad City Intl. Airport (MLI) - 325 flights per month.
  • Williamson County Regional Airport (MWA) - 156 flights per month.

How much is a plane ticket to Northern Illinois?
In the last seven days, tickets varied between and . Take a look at our amazing deals to Northern Illinois, pick your favorite and then start packing!
What months are the cheapest to book a flight to Northern Illinois?
February is the cheapest month to book your Northern Illinois adventure. Fares are at a premium throughout the busy month of December, so avoid this time if possible.
Flights to Northern Illinois information
Destination airport
Northern Illinois
Destination airport IATA code
CHI
*Available to Expedia members.