Cheap Flights to Northern Illinois: Northern Illinois Flight Deals

View €277 flight on Sat, 9 May 2026Opens in a new window

Flight 1

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Cheap round-trip flights to Northern Illinois

Prices were available within the past 7 days and start at €277 for one-way flights and €447 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 25 Nov - Mon, 30 Nov
DUB
Dublin
ORD
Chicago
€447 Return, found 1 hour ago
€447
Return
found 1 hour ago
Select Icelandair flight, departing Wed, 25 Nov from Dublin to Chicago, returning Mon, 30 Nov, priced at €447 found 1 hour ago
Scandinavian Airlines
Mon, 15 Feb - Mon, 1 Mar
DUB
Dublin
ORD
Chicago
€474 Return, found 3 days ago
€474
Return
found 3 days ago
Select Scandinavian Airlines flight, departing Mon, 15 Feb from Dublin to Chicago, returning Mon, 1 Mar, priced at €474 found 3 days ago
British Airways
Sat, 21 Nov - Sat, 28 Nov
DUB
Dublin
ORD
Chicago
€495 Return, found 11 hours ago
€495
Return
found 11 hours ago
Select British Airways flight, departing Sat, 21 Nov from Dublin to Chicago, returning Sat, 28 Nov, priced at €495 found 11 hours ago
JetBlue Airways
Fri, 8 May - Sun, 17 May
DUB
Dublin
ORD
Chicago
€506 Return, just found
€506
Return
just found
Select JetBlue Airways flight, departing Fri, 8 May from Dublin to Chicago, returning Sun, 17 May, priced at €506 just found
Aer Lingus
Thu, 26 Nov - Sun, 29 Nov
DUB
Dublin
ORD
Chicago
€507 Return, found 6 days ago
€507
Return
found 6 days ago
Select Aer Lingus flight, departing Thu, 26 Nov from Dublin to Chicago, returning Sun, 29 Nov, priced at €507 found 6 days ago

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 holiday 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, €447 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 Dublin (DUB) sold for just €277 in the last seven days. During this time, the price of a return air ticket to Northern Illinois ranged between €447 and €507. 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 €447 and €507. Take a look at our amazing deals to Northern Illinois, pick your favourite 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.

Travel information

Destination airport
O'Hare Intl.
Destination airport IATA code
ORD
Destination city name
Chicago
Return price
€446

Trending flights to Northern Illinois

Prices were available within the past 7 days and start at €277 for one-way flights and €447 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 25 Nov - Mon, 30 Nov
DUB
Dublin
ORD
Chicago
€447 Return, found 1 hour ago
€447
Return
found 1 hour ago
Select Icelandair flight, departing Wed, 25 Nov from Dublin to Chicago, returning Mon, 30 Nov, priced at €447 found 1 hour ago

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