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.

Cheap Flights from Illinois to Knock

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Cheap Flights from Illinois to Knock

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

Recent return flight deals from Illinois to Knock

Mon, 12 Oct - Mon, 19 Oct

18:40 - 12:35ORD Chicago O'Hare Intl-NOC Knock Intl

35h 55m2 stops Raleigh-Durham London Heathrow

13:05 - 12:30NOC Knock Intl-ORD Chicago O'Hare Intl

29h 25m1 stop London Heathrow

€827Multiple Airlines

Mon, 12 Oct - Mon, 19 Oct

18:40 - 12:35ORD Chicago O'Hare Intl-NOC Knock Intl

35h 55m2 stops Raleigh-Durham London Heathrow

13:05 - 22:30NOC Knock Intl-ORD Chicago O'Hare Intl

39h 25m2 stops London Heathrow Philadelphia

€831Multiple Airlines

Wed, 21 Oct - Wed, 28 Oct

10:40 - 12:35ORD Chicago O'Hare Intl-NOC Knock Intl

19h 55m2 stops Ottawa London Heathrow

13:00 - 09:23NOC Knock Intl-ORD Chicago O'Hare Intl

25h 23m2 stops London Heathrow Toronto Pearson Intl

€883Multiple Airlines

Wed, 21 Oct - Wed, 28 Oct

17:00 - 12:35ORD Chicago O'Hare Intl-NOC Knock Intl

13h 35m1 stop London Heathrow

13:00 - 20:20NOC Knock Intl-ORD Chicago O'Hare Intl

12h 20m1 stop London Heathrow

€897Multiple Airlines

Wed, 21 Oct - Wed, 28 Oct

16:26 - 12:35ORD Chicago O'Hare Intl-NOC Knock Intl

14h 09m2 stops New York John F Kennedy Intl London Heathrow

13:00 - 20:20NOC Knock Intl-ORD Chicago O'Hare Intl

12h 20m1 stop London Heathrow

€901Multiple Airlines

Mon, 12 Oct - Mon, 19 Oct

18:05 - 12:35ORD Chicago O'Hare Intl-NOC Knock Intl

12h 30m1 stop London Heathrow

13:05 - 12:30NOC Knock Intl-ORD Chicago O'Hare Intl

29h 25m1 stop London Heathrow

€965Multiple Airlines

Mon, 12 Oct - Mon, 19 Oct

15:45 - 16:55ORD Chicago O'Hare Intl-NOC Knock Intl

19h 10m2 stops Dublin London Heathrow

14:55 - 19:50NOC Knock Intl-ORD Chicago O'Hare Intl

34h 55m3 stops Palma de Mallorca Son Sant Joan Vienna Intl Warsaw Frederic Chopin

€1,048Multiple Airlines

Wed, 21 Oct - Wed, 28 Oct

15:45 - 16:40ORD Chicago O'Hare Intl-NOC Knock Intl

18h 55m2 stops Dublin Liverpool J. Lennon

13:00 - 19:58NOC Knock Intl-ORD Chicago O'Hare Intl

35h 58m3 stops London Heathrow Frankfurt am Main Toronto Pearson Intl

€1,111Multiple Airlines

Wed, 21 Oct - Wed, 28 Oct

15:45 - 16:20ORD Chicago O'Hare Intl-NOC Knock Intl

18h 35m3 stops Dublin Edinburgh Turnhouse London Stansted

13:00 - 19:58NOC Knock Intl-ORD Chicago O'Hare Intl

35h 58m3 stops London Heathrow Frankfurt am Main Toronto Pearson Intl

€1,140Multiple Airlines

Mon, 9 Nov - Thu, 12 Nov

18:35 - 12:25ORD Chicago O'Hare Intl-NOC Knock Intl

11h 50m1 stop London Heathrow

13:00 - 13:45NOC Knock Intl-ORD Chicago O'Hare Intl

30h 45m1 stop London Heathrow

€1,142British Airways

Useful Info

Cheapest flight	€827

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.