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>

€759 Cheap Flights from Illinois to Knock

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In the last 7 days, travellers have searched 47,107,125 times on KAYAK, and here's why:

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Cheapest flight	€759

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

18/3Tue

1 stopBritish Airways

11h 50mORD-NOC

23/3Sun

2 stopsBritish Airways

55h 30mNOC-ORD

€759

4/1Sat

2 stops

16h 25mORD-NOC

11/1Sat

2 stops

25h 57mNOC-ORD

€1,206

4/1Sat

1 stop

32h 30mORD-NOC

11/1Sat

1 stop

31h 45mNOC-ORD

€1,263

4/1Sat

1 stopBritish Airways

13h 30mORD-NOC

11/1Sat

2 stopsBritish Airways

36h 15mNOC-ORD

€1,272

22/3Sat

2 stopsBritish Airways

14h 36mORD-NOC

27/3Thu

2 stopsBritish Airways

55h 30mNOC-ORD

€1,300

4/1Sat

1 stop

32h 30mORD-NOC

11/1Sat

1 stop

31h 45mNOC-ORD

€1,311

4/1Sat

1 stop

32h 30mORD-NOC

11/1Sat

2 stops

27h 47mNOC-ORD

€1,316

4/1Sat

2 stops

37h 45mORD-NOC

11/1Sat

1 stop

31h 45mNOC-ORD

€1,326

4/1Sat

1 stop

32h 30mORD-NOC

11/1Sat

1 stop

31h 45mNOC-ORD

€1,329

4/1Sat

1 stop

32h 30mORD-NOC

11/1Sat

1 stop

31h 45mNOC-ORD

€1,348

One-way flight deals

multi-stopMultiple Airlines

285 kmDUB-NOC

multi-stopMultiple Airlines

372 kmORK-NOC

Everything you need to know for your flight to Knock

Information on the airport you'll fly into in Knock

Knock (NOC)

€759 Find cheap flights from Illinois to Knock

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Knock departing on 18/3. 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?

Book cheap flights from Illinois to Knock

Recent return flight deals

Search by stops

Search by airline

Search by price

One-way flight deals

Search by stops

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