£334 Cheap Flights to Northern Illinois

View £334 flight on Tue, 14 Oct 2025Opens in a new window

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Cheap round-trip flights to Northern Illinois

Prices were available within the past 7 days and start at £334 for one-way flights and £367 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sun, 28 Sep - Sat, 4 Oct
LGW
London
ORD
Chicago
£367 Return, found 12 hours ago
£367
Return
found 12 hours ago
Select Icelandair flight, departing Sun, 28 Sep from London to Chicago, returning Sat, 4 Oct, priced at £367 found 12 hours ago
TAP Portugal
Tue, 13 Jan - Sun, 25 Jan
LGW
London
ORD
Chicago
£399 Return, found 1 day ago
£399
Return
found 1 day ago
Select TAP Portugal flight, departing Tue, 13 Jan from London to Chicago, returning Sun, 25 Jan, priced at £399 found 1 day ago
Scandinavian Airlines
Fri, 21 Nov - Sun, 30 Nov
LHR
London
ORD
Chicago
£408 Return, found 2 hours ago
£408
Return
found 2 hours ago
Select Scandinavian Airlines flight, departing Fri, 21 Nov from London to Chicago, returning Sun, 30 Nov, priced at £408 found 2 hours ago
Swiss International Air Lines
Sat, 7 Feb - Sat, 14 Feb
LGW
London
ORD
Chicago
£418 Return, found 16 hours ago
£418
Return
found 16 hours ago
Select Swiss International Air Lines flight, departing Sat, 7 Feb from London to Chicago, returning Sat, 14 Feb, priced at £418 found 16 hours ago
American Airlines
Fri, 5 Sep - Sat, 20 Sep
LGW
London
ORD
Chicago
£418 Return, found 14 hours ago
£418
Return
found 14 hours ago
Select American Airlines flight, departing Fri, 5 Sep from London to Chicago, returning Sat, 20 Sep, priced at £418 found 14 hours ago

Expedia flights to Northern Illinois

Searching for cheap flights to Northern Illinois? No travel company presents more choices than Expedia if you're looking to compare flights to Northern Illinois. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Illinois. Expedia provides the cheapest flights to many destinations in Illinois and you may find even greater savings if you combine your flight with a hotel stay in Northern Illinois.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Northern Illinois for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Northern Illinois flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured 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 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, £367 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 London (LGW) sold for just £334 in the last seven days. During this time, the price of a return air ticket to Northern Illinois ranged between £367 and £668. 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.

When is the cheapest time to fly to Northern Illinois?
Consider leaving earlier in the week to secure the best fare to Northern Illinois. Tuesday is normally the most affordable day to fly, followed by Monday. Saturday typically has the highest ticket prices. This is because a lot of travellers like to begin their holiday on a weekend.
How much is a plane ticket to Northern Illinois?
In the last seven days, tickets varied between £367 and £668. 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.
Flights to Northern Illinois information
Destination airport
O'Hare Intl.
Destination airport IATA code
ORD
Destination city name
Chicago
Return price
£367

Trending flights to Northern Illinois

Prices were available within the past 7 days and start at £334 for one-way flights and £367 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Tue, 13 Jan - Wed, 21 Jan
LHR
London
ORD
Chicago
£401 Return, found 1 day ago
£401
Return
found 1 day ago
Select TAP Portugal flight, departing Tue, 13 Jan from London to Chicago, returning Wed, 21 Jan, priced at £401 found 1 day ago
*Available to Expedia members.