$373 Find Cheap Flights from Cologne to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cologne to Illinois departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cologne to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cologne to Illinois, as well as popular online travel agencies
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Flight Deals

Book Cheap Cologne to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Cologne to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cologne to Illinois

Fri, Aug 21 - Mon, Sep 7
Lufthansa Logo
8:30 am - 2:00 pm
CGN
-
ORD
12h 30m
1 stop
Lufthansa Logo
9:40 pm - 7:30 pm
ORD
-
CGN
14h 50m
1 stop
$686Lufthansa
Fri, Aug 21 - Tue, Sep 8
Lufthansa Logo
8:30 am - 2:00 pm
CGN
-
ORD
12h 30m
1 stop
Lufthansa Logo
6:00 pm - 7:30 pm
ORD
-
CGN
18h 30m
1 stop
$687Lufthansa
Fri, Aug 21 - Tue, Sep 8
Lufthansa Logo
8:30 am - 2:00 pm
CGN
-
ORD
12h 30m
1 stop
Lufthansa Logo
6:00 pm - 7:30 pm
ORD
-
CGN
18h 30m
1 stop
$689Lufthansa
Fri, Aug 21 - Mon, Sep 7
Lufthansa Logo
8:30 am - 2:00 pm
CGN
-
ORD
12h 30m
1 stop
Lufthansa Logo
9:40 pm - 7:30 pm
ORD
-
CGN
14h 50m
1 stop
$690Lufthansa
Sat, Aug 8 - Sun, Aug 16
Lufthansa Logo
7:35 pm - 2:00 pm
CGN
-
ORD
25h 25m
1 stop
Lufthansa Logo
6:00 pm - 12:25 pm
ORD
-
CGN
11h 25m
1 stop
$706Lufthansa
Fri, Aug 21 - Mon, Sep 7
United Airlines Logo
1:05 pm - 11:40 pm
CGN
-
ORD
17h 35m
2 stops
United Airlines Logo
12:56 pm - 12:25 pm
ORD
-
CGN
16h 29m
2 stops
$709United Airlines
Fri, Aug 21 - Tue, Sep 8
United Airlines Logo
1:05 pm - 11:40 pm
CGN
-
ORD
17h 35m
2 stops
United Airlines Logo
12:55 pm - 12:25 pm
ORD
-
CGN
16h 30m
2 stops
$710United Airlines
Mon, Jun 29 - Fri, Jul 3
Air Canada Logo
6:20 am - 8:25 pm
CGN
-
STL
21h 05m
2 stops
Air Canada Logo
12:10 pm - 12:25 pm
STL
-
CGN
17h 15m
2 stops
$1,512Air Canada
Mon, Jun 29 - Fri, Jul 3
Multiple Airlines Logo
6:20 am - 8:25 pm
CGN
-
STL
21h 05m
2 stops
Multiple Airlines Logo
2:40 pm - 12:25 pm
STL
-
CGN
14h 45m
2 stops
$1,522Multiple Airlines
Mon, Jun 29 - Fri, Jul 3
Air Canada Logo
6:20 am - 8:25 pm
CGN
-
STL
21h 05m
2 stops
Air Canada Logo
1:13 pm - 12:25 pm
STL
-
CGN
16h 12m
3 stops
$1,526Air Canada
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?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cologne to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

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 May and September, when the average cost of round-trip tickets is $792 and $701 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$373
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Cologne to Chicago

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.

Everything you need to know for your flight from Cologne to Illinois

Information on your arrival and departure airports

Cologne (CGN)