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

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 Illinois to Knock. Visit our flight page for the latest deals!>/a>

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knock from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

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

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Knock with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

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

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 to Knock from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

€433 Cheap Flights from Illinois to Knock

Search hundreds of travel sites at once for deals on flights to Knock

...and more

In the last 7 days, travellers have searched 46,479,581 times on KAYAK, and here's why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest flight	€433

Flight from Chicago to Knock

How does KAYAK find such low prices on flights from Illinois to Knock?
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 Illinois to Knock.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Knock?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knock from 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 Illinois to Knock?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Knock with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Knock?
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 to Knock from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Direct departures

Illinois to Knock Intl

Monday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

Tuesday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

Wednesday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

Thursday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

Friday

Aer Lingus, British Airways, Qatar Airways, +2 more

Aer Lingus, British Airways, +3 more

Saturday

Aer Lingus, British Airways, Qatar Airways, +2 more

Aer Lingus, British Airways, +3 more

Sunday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

See more direct flights

Direct returns

Knock Intl to Illinois

Monday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

Tuesday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

Wednesday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

Thursday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

Friday

Aer Lingus, British Airways, Qatar Airways, +2 more

Aer Lingus, British Airways, +3 more

Saturday

Aer Lingus, British Airways, Qatar Airways, +2 more

Aer Lingus, British Airways, +3 more

Sunday

Aer Lingus, British Airways, Qatar Airways, +1 more

Aer Lingus, British Airways, +2 more

See more direct flights

Book cheap flights from Illinois to Knock

Recent return flight deals

8/3Sat

1 stopAer Lingus

32h 45mORD-NOC

15/3Sat

1 stopAer Lingus

30h 55mNOC-ORD

€757

8/3Sat

2 stops

13h 36mORD-NOC

15/3Sat

1 stop

30h 55mNOC-ORD

€778

8/3Sat

2 stops

18h 55mORD-NOC

15/3Sat

2 stops

26h 04mNOC-ORD

€791

21/3Fri

2 stopsBritish Airways

20h 09mORD-NOC

28/3Fri

2 stopsBritish Airways

26h 41mNOC-ORD

€944

21/3Fri

1 stopBritish Airways

32h 45mORD-NOC

28/3Fri

1 stopBritish Airways

30h 05mNOC-ORD

€4,360

Recent one-way flight deals

30/12Mon

1 stop

28h 55mORD-NOC

€433

30/12Mon

3 stops

31h 30mORD-NOC

€451

30/12Mon

2 stops

28h 50mORD-NOC

€457

Everything you need to know for your flight to Knock

Information on the airport you'll fly into in Knock

Knock (NOC)

€433 Find cheap flights from Illinois to Knock

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Knock departing on 30/12. 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.

Search hundreds of travel sites at once for deals on flights to Knock

Good to know

Cheapest flight

FAQs for booking flights from Illinois to Knock

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

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

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

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

Prefer to fly direct from Illinois to Knock Intl?

Illinois to Knock Intl

Knock Intl to Illinois

Book cheap flights from Illinois to Knock

Recent return flight deals

Search by stops

Search by airline

Search by price

Recent one-way flight deals

Search by stops

Search by price

Everything you need to know for your flight to Knock

Information on the airport you'll fly into in Knock

Cabin class types available on flights to Illinois

Cabin classes available on flights to Knock. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Knock with a hotel stay or car hire

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Flights from domestic origins to Knock

Flights from all regions of Illinois to Knock. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Choose which airport to fly into in Knock