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Cheap flights from Chicago O'Hare Intl Airport to Knock from €268

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 8/5. 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
15:45 - 12:35
ORD
-
NOC
14h 50m
2 stops
Multiple Airlines Logo
13:05 - 11:05
NOC
-
ORD
28h 00m
1 stop
€794Multiple Airlines
Thu, 30 Jul - Thu, 6 Aug
British Airways Logo
19:05 - 12:35
ORD
-
NOC
11h 30m
1 stop
British Airways Logo
13:05 - 12:30
NOC
-
ORD
29h 25m
1 stop
€796British Airways
Tue, 28 Jul - Sun, 9 Aug
British Airways Logo
11:55 - 12:35
ORD
-
NOC
18h 40m
2 stops
British Airways Logo
13:05 - 12:30
NOC
-
ORD
29h 25m
1 stop
€800British Airways
Tue, 28 Jul - Wed, 5 Aug
Multiple Airlines Logo
14:15 - 12:35
ORD
-
NOC
16h 20m
2 stops
Multiple Airlines Logo
13:05 - 23:30
NOC
-
ORD
16h 25m
2 stops
€803Multiple Airlines
Thu, 30 Jul - Thu, 6 Aug
British Airways Logo
21:15 - 12:35
ORD
-
NOC
33h 20m
1 stop
British Airways Logo
13:05 - 19:08
NOC
-
ORD
36h 03m
2 stops
€805British Airways
Tue, 28 Jul - Sat, 8 Aug
British Airways Logo
12:53 - 12:35
ORD
-
NOC
17h 42m
2 stops
British Airways Logo
13:05 - 15:56
NOC
-
ORD
32h 51m
2 stops
€809British Airways
Tue, 28 Jul - Wed, 5 Aug
British Airways Logo
19:05 - 12:35
ORD
-
NOC
11h 30m
1 stop
British Airways Logo
13:05 - 16:17
NOC
-
ORD
33h 12m
2 stops
€811British Airways
Tue, 28 Jul - Fri, 7 Aug
Multiple Airlines Logo
17:00 - 12:35
ORD
-
NOC
13h 35m
1 stop
Multiple Airlines Logo
13:05 - 12:30
NOC
-
ORD
29h 25m
1 stop
€818Multiple Airlines
Thu, 30 Jul - Thu, 6 Aug
Multiple Airlines Logo
15:45 - 12:35
ORD
-
NOC
14h 50m
2 stops
Multiple Airlines Logo
13:05 - 13:50
NOC
-
ORD
30h 45m
1 stop
€823Multiple Airlines
Thu, 30 Apr - Thu, 7 May
Aer Lingus Logo
15:45 - 12:35
ORD
-
NOC
14h 50m
2 stops
Aer Lingus Logo
13:05 - 14:00
NOC
-
ORD
30h 55m
2 stops
€824Aer Lingus
Thu, 30 Apr - Thu, 7 May

British Airways flights from Chicago O'Hare Intl Airport to Knock

Our best British Airways deals on Chicago O'Hare Intl Airport to Knock flight tickets
British Airways
28 Jul
ORD19:05Chicago O'Hare Intl
11h 30m
1 stop
NOC12:35Knock Intl
9 Aug
NOC13:05Knock Intl
29h 25m
1 stop
ORD12:30Chicago O'Hare Intl
€796
British Airways
28 Jul
ORD11:55Chicago O'Hare Intl
18h 40m
2 stops
NOC12:35Knock Intl
5 Aug
NOC13:05Knock Intl
29h 25m
1 stop
ORD12:30Chicago O'Hare Intl
€800
British Airways
28 Jul
ORD21:15Chicago O'Hare Intl
33h 20m
1 stop
NOC12:35Knock Intl
8 Aug
NOC13:05Knock Intl
36h 03m
2 stops
ORD19:08Chicago O'Hare Intl
€805

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
30 Apr
ORD15:45Chicago O'Hare Intl
14h 50m
2 stops
NOC12:35Knock Intl
7 May
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€824
Aer Lingus
1 Jun
ORD21:00Chicago O'Hare Intl
33h 35m
2 stops
NOC12:35Knock Intl
6 Jun
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€980
Aer Lingus
30 Jul
ORD17:00Chicago O'Hare Intl
13h 35m
1 stop
NOC12:35Knock Intl
10 Aug
NOC13:05Knock Intl
30h 45m
1 stop
ORD13:50Chicago O'Hare Intl
€993

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 20 March 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

Thu 30/7

15:45-12:35

2 stops14h 50m

Knock Intl

Thu 6/8

13:05-11:05

1 stop28h 00m

€794

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 28/7

19:05-12:35

1 stop11h 30m

Knock Intl

Sun 9/8

13:05-12:30

1 stop29h 25m

€796

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 28/7

11:55-12:35

2 stops18h 40m

Knock Intl

Wed 5/8

13:05-12:30

1 stop29h 25m

€800
Fastest return journey

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 30/7

14:15-12:35

2 stops16h 20m

Knock Intl

Thu 6/8

13:05-23:30

2 stops16h 25m

€803

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 28/7

21:15-12:35

1 stop33h 20m

Knock Intl

Sat 8/8

13:05-19:08

2 stops36h 03m

€805

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 28/7

12:53-12:35

2 stops17h 42m

Knock Intl

Wed 5/8

13:05-15:56

2 stops32h 51m

€809

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 28/7

19:05-12:35

1 stop11h 30m

Knock Intl

Fri 7/8

13:05-16:17

2 stops33h 12m

€811

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 30/7

17:00-12:35

1 stop13h 35m

Knock Intl

Thu 6/8

13:05-12:30

1 stop29h 25m

€818

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 30/4

15:45-12:35

2 stops14h 50m

Knock Intl

Thu 7/5

13:05-13:50

1 stop30h 45m

€823

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 30/4

15:45-12:35

2 stops14h 50m

Knock Intl

Thu 7/5

13:05-14:00

2 stops30h 55m

€824

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Knock from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Knock

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Chicago O'Hare Intl to Knock Intl?

British Airways is the most popular carrier operating from Chicago O'Hare Intl to Knock Intl

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

13h 35m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Knock takes 13h 35m
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

  • 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 13h 35m.

  • 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.

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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