Question 1

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

Accepted Answer

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. <a href='/flight-routes/Cologne-Koeln-Bonn-CGN/Illinois-USIL'>Visit our flight page for the latest deals!>/a>

Question 2

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

Accepted Answer

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. <a href='/flight-routes/Cologne-Koeln-Bonn-CGN/Illinois-USIL'>Visit our flight page for the latest deals!>/a>

Question 3

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

Accepted Answer

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. <a href='/flight-routes/Cologne-Koeln-Bonn-CGN/Illinois-USIL'>Visit our flight page for the latest deals!>/a>

Question 4

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

Accepted Answer

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. <a href='/flight-routes/Cologne-Koeln-Bonn-CGN/Illinois-USIL'>Visit our flight page for the latest deals!>/a>

Question 5

Which airlines provide the cheapest flights from Cologne to Illinois?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Cologne to Illinois were found on Lufthansa ($590) and United Airlines ($607).

Question 6

Which airlines provide the cheapest flights from Cologne to Illinois?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from Cologne to Illinois were found on Lufthansa ($590) and United Airlines ($607).

Question 7

What’s the cheapest day of the week to fly from Cologne to Illinois?

Accepted Answer

For Cologne to Illinois, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Illinois back to Cologne, the best deals are generally found on Wednesday, with Monday being the most expensive.

Question 8

What’s the cheapest day of the week to fly from Cologne to Illinois?

Accepted Answer

For Cologne to Illinois, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Illinois back to Cologne, the best deals are generally found on Wednesday, with Monday being the most expensive.

Question 9

What is the cheapest time of day to fly to Illinois?

Accepted Answer

The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $884 on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $918.

Question 10

How long does a flight from Cologne to Illinois take?

Accepted Answer

The duration of a flight to Illinois depends on your arrival airport. The shortest route to Illinois from Cologne is to Chicago, which takes 11h 50m.

Question 11

How long does a flight from Cologne to Illinois take?

Accepted Answer

The duration of a flight to Illinois depends on your arrival airport. The shortest route to Illinois from Cologne is to Chicago, which takes 11h 50m.

Question 12

How much is a round-trip flight from Cologne to Illinois?

Accepted Answer

Flight prices are below average for this route right now.Flights to Illinois from Cologne usually cost between $706 and $717 in January.
The lowest price found in the past 3 days was $577 on Multiple Airlines (Jan 15-Jan 19).

Low season	February
High season	December
Cheapest flight	$390

$390 Find Cheap Flights from Cologne to Illinois

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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.

How much is a round-trip flight from Cologne to Illinois?

What’s the cheapest day of the week to fly from Cologne to Illinois?

For Cologne to Illinois, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Illinois back to Cologne, the best deals are generally found on Wednesday, with Monday being the most expensive.

Which airlines provide the cheapest flights from Cologne to Illinois?

In the past 3 days, the cheapest round-trip tickets from Cologne to Illinois were found on Lufthansa ($590) and United Airlines ($607).

How long does a flight from Cologne to Illinois take?

The duration of a flight to Illinois depends on your arrival airport. The shortest route to Illinois from Cologne is to Chicago, which takes 11h 50m.

Good to know

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.

What is the cheapest time of day to fly to Illinois?

The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $884 on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $918.

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

Information on your arrival and departure airports

Cabin class types available on flights to Illinois

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

Flights to other popular destinations

Flights from other airports in Cologne to Illinois

Flights from Cologne to popular cities in Illinois

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