$623 Find Cheap Flights from Cologne to Illinois - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Cologne to Illinois Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cologne to Illinois

Thu, Nov 12 - Sun, Nov 22
Lufthansa Logo
1:35 pm - 6:25 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
11h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
9:50 pm - 4:55 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
12h 05m1 stop Munich Franz Josef Strauss
$690Lufthansa
Thu, Oct 29 - Mon, Nov 2
Lufthansa Logo
9:20 am - 3:10 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
11h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 pm - 12:50 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
11h 50m1 stop Munich Franz Josef Strauss
$691Lufthansa
Thu, Oct 29 - Thu, Nov 5
Lufthansa Logo
9:20 am - 3:10 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
11h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 pm - 12:25 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
11h 25m1 stop Munich Franz Josef Strauss
$694Lufthansa
Tue, Oct 27 - Tue, Nov 3
Lufthansa Logo
1:35 pm - 7:25 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
11h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 pm - 7:35 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
18h 35m1 stop Munich Franz Josef Strauss
$697Lufthansa
Wed, Oct 28 - Tue, Nov 3
Lufthansa Logo
1:10 pm - 7:25 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
12h 15m1 stop Munich Franz Josef Strauss
Lufthansa Logo
9:50 pm - 7:35 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
14h 45m1 stop Munich Franz Josef Strauss
$705Lufthansa
Thu, Nov 12 - Sun, Nov 22
United Airlines Logo
1:35 pm - 6:25 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
11h 50m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:07 pm - 4:55 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
15h 48m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
$707United Airlines
Sat, Oct 31 - Sat, Nov 7
Multiple Airlines Logo
5:40 pm - 3:10 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
27h 30m1 stop Munich Franz Josef Strauss
Multiple Airlines Logo
4:20 pm - 8:55 amORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
33h 35m1 stop Vienna Intl
$710Multiple Airlines
Tue, Oct 27 - Tue, Nov 3
Lufthansa Logo
1:35 pm - 7:25 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
11h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
9:50 pm - 7:35 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
14h 45m2 stops London Heathrow Munich Franz Josef Strauss
$715Lufthansa
Mon, Nov 2 - Thu, Nov 19
United Airlines Logo
9:20 am - 8:00 amCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
29h 40m2 stops Munich Franz Josef Strauss Boston Logan Intl
United Airlines Logo
1:30 pm - 4:55 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
20h 25m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
$716United Airlines
Thu, Oct 29 - Thu, Nov 5
Lufthansa Logo
9:20 am - 3:10 pmCGN  Cologne Köln/Bonn-ORD Chicago O'Hare Intl
11h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
4:20 pm - 12:25 pmORD  Chicago O'Hare Intl-CGN Cologne Köln/Bonn
13h 05m2 stops Frankfurt am Main Munich Franz Josef Strauss
$719Lufthansa
Booking Insights

KAYAK's insights & trends for Cologne to Illinois flights

Get data-powered insights and trends into flights from Cologne to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Cologne to Illinois?

The cheapest month for flights from Cologne to Illinois is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are July and October, when the average cost of round-trip tickets is $1,564 and $887 respectively.

Find deals

Good to know

Low season

February
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly with an average 11% increase in price.

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Cologne to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Cologne to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Cologne to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Cologne to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Cologne to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Cologne to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Cologne to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Cologne to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

More options for your flight from Cologne to Illinois

Complete your trip to Illinois with a hotel stay or car rental

Car rentals in Illinois
Hotels in Illinois
Vacations in Illinois