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Cheap flights from Chicago O'Hare Intl Airport to Knock from $309

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 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Chicago O'Hare Intl Airport to Knock

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:45 pm - 12:35 pm
ORD
-
NOC
14h 50m
2 stops
Multiple Airlines Logo
1:05 pm - 11:05 am
NOC
-
ORD
28h 00m
1 stop
$914Multiple Airlines
Thu, Jul 30 - Thu, Aug 6
British Airways Logo
7:05 pm - 12:35 pm
ORD
-
NOC
11h 30m
1 stop
British Airways Logo
1:05 pm - 12:30 pm
NOC
-
ORD
29h 25m
1 stop
$916British Airways
Tue, Jul 28 - Sun, Aug 9
British Airways Logo
12:53 pm - 12:35 pm
ORD
-
NOC
17h 42m
2 stops
British Airways Logo
1:05 pm - 12:30 pm
NOC
-
ORD
29h 25m
1 stop
$921British Airways
Tue, Jul 28 - Thu, Aug 6
Multiple Airlines Logo
2:15 pm - 12:35 pm
ORD
-
NOC
16h 20m
2 stops
Multiple Airlines Logo
1:05 pm - 11:30 pm
NOC
-
ORD
16h 25m
2 stops
$924Multiple Airlines
Thu, Jul 30 - Thu, Aug 6
British Airways Logo
9:15 pm - 12:35 pm
ORD
-
NOC
33h 20m
1 stop
British Airways Logo
1:05 pm - 7:08 pm
NOC
-
ORD
36h 03m
2 stops
$927British Airways
Tue, Jul 28 - Sat, Aug 8
British Airways Logo
12:53 pm - 12:35 pm
ORD
-
NOC
17h 42m
2 stops
British Airways Logo
1:05 pm - 7:08 pm
NOC
-
ORD
36h 03m
2 stops
$931British Airways
Tue, Jul 28 - Sun, Aug 9
British Airways Logo
7:05 pm - 12:35 pm
ORD
-
NOC
11h 30m
1 stop
British Airways Logo
1:05 pm - 4:17 pm
NOC
-
ORD
33h 12m
2 stops
$933British Airways
Tue, Jul 28 - Fri, Aug 7
Multiple Airlines Logo
5:00 pm - 12:35 pm
ORD
-
NOC
13h 35m
1 stop
Multiple Airlines Logo
1:05 pm - 12:30 pm
NOC
-
ORD
29h 25m
1 stop
$941Multiple Airlines
Thu, Jul 30 - Thu, Aug 6
Multiple Airlines Logo
3:45 pm - 12:35 pm
ORD
-
NOC
14h 50m
2 stops
Multiple Airlines Logo
1:05 pm - 1:50 pm
NOC
-
ORD
30h 45m
1 stop
$947Multiple Airlines
Thu, Apr 30 - Thu, May 7
Aer Lingus Logo
3:45 pm - 12:35 pm
ORD
-
NOC
14h 50m
2 stops
Aer Lingus Logo
1:05 pm - 2:00 pm
NOC
-
ORD
30h 55m
2 stops
$948Aer Lingus
Thu, Apr 30 - Thu, May 7

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
Jul 28
ORD7:05 pmChicago O'Hare Intl
11h 30m
1 stop
NOC12:35 pmKnock Intl
Aug 9
NOC1:05 pmKnock Intl
29h 25m
1 stop
ORD12:30 pmChicago O'Hare Intl
$916
British Airways
Jul 28
ORD12:53 pmChicago O'Hare Intl
17h 42m
2 stops
NOC12:35 pmKnock Intl
Aug 6
NOC1:05 pmKnock Intl
29h 25m
1 stop
ORD12:30 pmChicago O'Hare Intl
$921
British Airways
Jul 28
ORD9:15 pmChicago O'Hare Intl
33h 20m
1 stop
NOC12:35 pmKnock Intl
Aug 8
NOC1:05 pmKnock Intl
36h 03m
2 stops
ORD7:08 pmChicago O'Hare Intl
$927

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
Apr 30
ORD3:45 pmChicago O'Hare Intl
14h 50m
2 stops
NOC12:35 pmKnock Intl
May 7
NOC1:05 pmKnock Intl
30h 55m
2 stops
ORD2:00 pmChicago O'Hare Intl
$948
Aer Lingus
Jun 1
ORD9:00 pmChicago O'Hare Intl
33h 35m
2 stops
NOC12:35 pmKnock Intl
Jun 6
NOC1:05 pmKnock Intl
30h 55m
2 stops
ORD2:00 pmChicago O'Hare Intl
$1,128
Aer Lingus
Jul 30
ORD5:00 pmChicago O'Hare Intl
13h 35m
1 stop
NOC12:35 pmKnock Intl
Aug 10
NOC1:05 pmKnock Intl
30h 45m
1 stop
ORD1:50 pmChicago O'Hare Intl
$1,143

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated March 20, 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 round-trip

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 7/30

3:45 pm-12:35 pm

2 stops14h 50m

Knock Intl

Thu 8/6

1:05 pm-11:05 am

1 stop28h 00m

$914

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/28

7:05 pm-12:35 pm

1 stop11h 30m

Knock Intl

Sun 8/9

1:05 pm-12:30 pm

1 stop29h 25m

$916

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/28

12:53 pm-12:35 pm

2 stops17h 42m

Knock Intl

Thu 8/6

1:05 pm-12:30 pm

1 stop29h 25m

$921
Quickest round-trip

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 7/30

2:15 pm-12:35 pm

2 stops16h 20m

Knock Intl

Thu 8/6

1:05 pm-11:30 pm

2 stops16h 25m

$924

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/28

9:15 pm-12:35 pm

1 stop33h 20m

Knock Intl

Sat 8/8

1:05 pm-7:08 pm

2 stops36h 03m

$927

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/28

12:53 pm-12:35 pm

2 stops17h 42m

Knock Intl

Sun 8/9

1:05 pm-7:08 pm

2 stops36h 03m

$931

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/28

7:05 pm-12:35 pm

1 stop11h 30m

Knock Intl

Fri 8/7

1:05 pm-4:17 pm

2 stops33h 12m

$933

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 7/30

5:00 pm-12:35 pm

1 stop13h 35m

Knock Intl

Thu 8/6

1:05 pm-12:30 pm

1 stop29h 25m

$941

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 4/30

3:45 pm-12:35 pm

2 stops14h 50m

Knock Intl

Thu 5/7

1:05 pm-1:50 pm

1 stop30h 45m

$947

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 4/30

3:45 pm-12:35 pm

2 stops14h 50m

Knock Intl

Thu 5/7

1:05 pm-2:00 pm

2 stops30h 55m

$948

Flights are sorted by cheapest round-trip 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 round-trip 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?

    Knock Intl is 3550.3 mi away from Chicago O'Hare Intl. 13h 35m is a normal flight duration for this route.

  • 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 were last updated today.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for 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 required travel and health documents for your Knock Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knock Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Knock?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Knock. momondo saves you time and could save you money on your trip.

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

Flights from Chicago to Knock with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Knock from Chicago.

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

Of course. momondo tracks the price of Chicago to Knock flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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