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Knock

$841+ Cheap flights from Illinois to Knock (NOC)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — NOC
Jan 24 — Jan 311
Sat 1/24
Sat 1/31
1 adult, Economy
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Cheap flight deals from Illinois to Knock

Cheapest flights from Illinois to Knock
Explore the most affordable flight options available from Illinois to Knock. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 25, 2025.

This Mytrip deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:35 amORD - NOC
2 stops19h 50mMultiple Airlines
Sun 12/283:05 pmNOC - ORD
3 stops28h 05mMultiple Airlines
Deal found 12/24$2,840

Find flight deals from Illinois to Knock

Keep the following information in mind while searching for Illinois to Knock flight deals. Data was last updated December 25, 2025.

Round-trip from

$686
(Expedia)
From Illinois to Knock Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Knock that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 25, 2025.
Use the filters below to find and compare flights from Illinois to Knock that are best for you.

Fly from

Illinois

Fly to

Knock

Route

Depart

Return

Price

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 3/11

7:45 pm-12:25 pm

1 stop11h 40m

Knock Intl

Sun 3/15

1:00 pm-3:55 pm

2 stops55h 55m

$841

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Best time to book a flight from Illinois to Knock

Have a flexible travel schedule? Discover the best time to fly to Knock from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Knock

What is the cheapest month to book a flight from Illinois to Knock?

Currently, August is the cheapest month in which you can book a flight from Illinois to Knock (average of $522). Flying from Illinois to Knock in November is currently the most expensive (average of $889). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Knock. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Knock from Illinois?

    For a flight from Illinois to Knock, you will be flying into Knock Intl. Knock Intl (NOC) is just 9.2 mi from the center of the city.

  • How long is the flight from Illinois to Knock?

    There are many flights that can get you from Illinois to Knock in 11h 40m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 3551 mi.

  • Can I find deals for flights from Illinois to Knock that include hotel bookings?

    Yes. In addition to deals on Illinois to Knock flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Knock?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Knock.

  • Can I find deals for business class flights from Illinois to Knock?

    Yes. Cheapflights offers flight deals from Illinois to Knock by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Knock?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Knock (average of $522). Flying from Illinois to Knock in November is currently the most expensive (average of $889). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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