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Cheap flights from Chicago O'Hare Intl Airport to Knock from €594

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Knock departing on 22/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Chicago O'Hare Intl Airport to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:05 - 12:35
ORD
-
NOC
19h 30m
2 stops
Multiple Airlines Logo
13:05 - 13:22
NOC
-
ORD
30h 17m
2 stops
€890Multiple Airlines
Sun, 19 Jul - Thu, 30 Jul
Multiple Airlines Logo
19:05 - 12:35
ORD
-
NOC
11h 30m
1 stop
Multiple Airlines Logo
13:05 - 00:39
NOC
-
ORD
17h 34m
2 stops
€908Multiple Airlines
Tue, 16 Jun - Tue, 23 Jun
Multiple Airlines Logo
11:05 - 12:35
ORD
-
NOC
19h 30m
2 stops
Multiple Airlines Logo
13:05 - 09:53
NOC
-
ORD
26h 48m
2 stops
€918Multiple Airlines
Wed, 26 Aug - Tue, 1 Sep
Aer Lingus Logo
17:00 - 12:35
ORD
-
NOC
13h 35m
1 stop
Aer Lingus Logo
13:05 - 14:00
NOC
-
ORD
30h 55m
2 stops
€924Aer Lingus
Sun, 19 Jul - Thu, 30 Jul
Multiple Airlines Logo
19:05 - 12:35
ORD
-
NOC
11h 30m
1 stop
Multiple Airlines Logo
13:05 - 08:30
NOC
-
ORD
25h 25m
2 stops
€939Multiple Airlines
Wed, 26 Aug - Tue, 1 Sep
Multiple Airlines Logo
14:36 - 12:35
ORD
-
NOC
15h 59m
2 stops
Multiple Airlines Logo
13:05 - 08:30
NOC
-
ORD
25h 25m
2 stops
€943Multiple Airlines
Wed, 26 Aug - Tue, 1 Sep
Multiple Airlines Logo
12:55 - 12:35
ORD
-
NOC
17h 40m
2 stops
Multiple Airlines Logo
13:05 - 08:00
NOC
-
ORD
24h 55m
2 stops
€945Multiple Airlines
Fri, 29 May - Fri, 5 Jun
Multiple Airlines Logo
18:10 - 12:35
ORD
-
NOC
12h 25m
1 stop
Multiple Airlines Logo
13:05 - 12:30
NOC
-
ORD
29h 25m
1 stop
€973Multiple Airlines
Sun, 19 Jul - Thu, 30 Jul
Multiple Airlines Logo
09:55 - 16:05
ORD
-
NOC
24h 10m
2 stops
Multiple Airlines Logo
11:15 - 16:00
NOC
-
ORD
34h 45m
3 stops
€990Multiple Airlines
Tue, 16 Jun - Tue, 23 Jun
Multiple Airlines Logo
16:33 - 12:35
ORD
-
NOC
14h 02m
2 stops
Multiple Airlines Logo
13:05 - 00:39
NOC
-
ORD
17h 34m
2 stops
€992Multiple Airlines
Tue, 16 Jun - Tue, 23 Jun

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Aer Lingus flights from Chicago O'Hare Intl Airport to Knock

Our best Aer Lingus deals on Chicago O'Hare Intl Airport to Knock flight tickets
Aer Lingus
19 Jul
ORD17:00Chicago O'Hare Intl
13h 35m
1 stop
NOC12:35Knock Intl
30 Jul
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€924
Aer Lingus
11 May
ORD21:00Chicago O'Hare Intl
33h 35m
2 stops
NOC12:35Knock Intl
18 May
NOC13:05Knock Intl
30h 45m
1 stop
ORD13:50Chicago O'Hare Intl
€1,009
Aer Lingus
11 May
ORD21:00Chicago O'Hare Intl
33h 35m
2 stops
NOC12:35Knock Intl
18 May
NOC13:05Knock Intl
36h 52m
2 stops
ORD19:57Chicago O'Hare Intl
€1,042

momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 13,528 searches. Data last updated 4 May 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 19/7

11:05-12:35

2 stops19h 30m

Knock Intl

Thu 30/7

13:05-13:22

2 stops30h 17m

€890
Fastest return journey

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 16/6

19:05-12:35

1 stop11h 30m

Knock Intl

Tue 23/6

13:05-00:39

2 stops17h 34m

€908

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 26/8

11:05-12:35

2 stops19h 30m

Knock Intl

Tue 1/9

13:05-09:53

2 stops26h 48m

€918

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 19/7

17:00-12:35

1 stop13h 35m

Knock Intl

Thu 30/7

13:05-14:00

2 stops30h 55m

€924

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 26/8

19:05-12:35

1 stop11h 30m

Knock Intl

Tue 1/9

13:05-08:30

2 stops25h 25m

€939

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 26/8

14:36-12:35

2 stops15h 59m

Knock Intl

Tue 1/9

13:05-08:30

2 stops25h 25m

€943

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Fri 29/5

12:55-12:35

2 stops17h 40m

Knock Intl

Fri 5/6

13:05-08:00

2 stops24h 55m

€945

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 19/7

18:10-12:35

1 stop12h 25m

Knock Intl

Thu 30/7

13:05-12:30

1 stop29h 25m

€973

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 16/6

09:55-16:05

2 stops24h 10m

Knock Intl

Tue 23/6

11:15-16:00

3 stops34h 45m

€990

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 16/6

16:33-12:35

2 stops14h 02m

Knock Intl

Tue 23/6

13:05-00:39

2 stops17h 34m

€992

Flights are sorted by cheapest return flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

When to book flights from Chicago O'Hare Intl Airport to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago O'Hare Intl Airport to Knock (ORD to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Knock

Fastest flight time

11h 30m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Knock takes 11h 30m
There are no direct flights from Chicago O'Hare Intl Airport to Knock. There are no popular flight routes from Chicago O'Hare Intl Airport to Knock.
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Knock

  • How far is Chicago O'Hare Intl to Knock Intl by plane?

    Chicago O'Hare Intl and Knock Intl are 5713.7 km apart from one another. In terms of flight time, this usually takes a little over 11h 30m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Knock Intl Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Knock Intl Airport are updated daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Knock Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Knock Intl Airport.

  • What documentation or ID do you need to fly to Knock Intl Airport?

    The travel and health documents required for your trip to Knock Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Knock Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Knock

  • How do I get Price Alerts for flights from Chicago O'Hare Intl Airport to Knock?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Chicago O'Hare Intl Airport from Knock. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Chicago O'Hare Intl Airport to Knock with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Travelling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Sligo
Westport
Carrick-on-Shannon
Belmullet

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Knock?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Knock from Chicago.

Can I find flights from Chicago to Knock with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Knock from Chicago with this policy.

How can momondo help me find flights from Chicago to Knock?

momondo provides multiple filters to help you find the best flight to Knock from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Knock right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Chicago to Knock now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Knock and let you know when they change.

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