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Cheap flights from Chicago to Knock from $734

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Knock departing on 3/4. 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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Cheap round-trip flights

British Airways Logo
6:45 pm - 12:25 pmORD-NOC
11h 40m1 stop
British Airways Logo
1:00 pm - 3:30 pmNOC-ORD
55h 30m2 stops
$734British Airways
Find Deal
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
12:05 pm - 12:25 pmORD-NOC
18h 20m2 stops
British Airways Logo
1:00 pm - 3:30 pmNOC-ORD
55h 30m2 stops
$739British Airways
Find Deal
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
5:10 pm - 12:25 pmORD-NOC
13h 15m1 stop
British Airways Logo
1:00 pm - 2:50 pmNOC-ORD
30h 50m1 stop
$779British Airways
Find Deal
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
11:45 am - 12:25 pmORD-NOC
18h 40m2 stops
British Airways Logo
1:00 pm - 2:50 pmNOC-ORD
30h 50m1 stop
$784British Airways
Find Deal
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
5:10 pm - 12:25 pmORD-NOC
13h 15m1 stop
British Airways Logo
1:00 pm - 3:25 pmNOC-ORD
32h 25m1 stop
$789British Airways
Find Deal
Sun, Nov 9 - Sun, Nov 16
Multiple Airlines Logo
4:50 pm - 12:25 pmORD-NOC
14h 35m2 stops
Multiple Airlines Logo
1:00 pm - 1:50 pmNOC-ORD
30h 50m1 stop
$790Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
12:50 pm - 12:25 pmORD-NOC
18h 35m2 stops
Multiple Airlines Logo
1:00 pm - 4:20 pmNOC-ORD
33h 20m2 stops
$792Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
British Airways Logo
10:15 am - 12:25 pmORD-NOC
44h 10m2 stops
British Airways Logo
1:00 pm - 5:45 pmNOC-ORD
33h 45m2 stops
$797British Airways
Find Deal
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
4:45 pm - 12:25 pmORD-NOC
37h 40m2 stops
British Airways Logo
1:00 pm - 3:25 pmNOC-ORD
32h 25m1 stop
$803British Airways
Find Deal
Sun, Nov 9 - Sun, Nov 16
Aer Lingus Logo
10:45 pm - 12:25 pmORD-NOC
32h 40m1 stop
Aer Lingus Logo
1:00 pm - 1:50 pmNOC-ORD
30h 50m1 stop
$837Aer Lingus
Find Deal
Thu, Oct 30 - Thu, Nov 6

British Airways flights from Chicago to Knock

Our best British Airways deals on Chicago to Knock flight tickets
British Airways
Mar 4
ORD6:45 pmChicago O'Hare Intl
11h 40m
1 stop
NOC12:25 pmKnock Intl
Mar 8
NOC1:00 pmKnock Intl
55h 30m
2 stops
ORD3:30 pmChicago O'Hare Intl
$734
Find similar
British Airways
Mar 4
ORD12:05 pmChicago O'Hare Intl
18h 20m
2 stops
NOC12:25 pmKnock Intl
Mar 8
NOC1:00 pmKnock Intl
55h 30m
2 stops
ORD3:30 pmChicago O'Hare Intl
$739
Find similar
British Airways
Mar 4
ORD5:10 pmChicago O'Hare Intl
13h 15m
1 stop
NOC12:25 pmKnock Intl
Mar 8
NOC1:00 pmKnock Intl
30h 50m
1 stop
ORD2:50 pmChicago O'Hare Intl
$779
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 September 17, 2025.
Use the filters below to find and compare flights from Chicago to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 3/4

6:45 pm-12:25 pm

1 stop11h 40m

Knock Intl

Sun 3/8

1:00 pm-3:30 pm

2 stops55h 30m

$734

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 3/4

12:05 pm-12:25 pm

2 stops18h 20m

Knock Intl

Sun 3/8

1:00 pm-3:30 pm

2 stops55h 30m

$739

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 3/4

5:10 pm-12:25 pm

1 stop13h 15m

Knock Intl

Sun 3/8

1:00 pm-2:50 pm

1 stop30h 50m

$779

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 3/4

11:45 am-12:25 pm

2 stops18h 40m

Knock Intl

Sun 3/8

1:00 pm-2:50 pm

1 stop30h 50m

$784

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 11/9

5:10 pm-12:25 pm

1 stop13h 15m

Knock Intl

Sun 11/16

1:00 pm-3:25 pm

1 stop32h 25m

$789

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 10/30

4:50 pm-12:25 pm

2 stops14h 35m

Knock Intl

Thu 11/6

1:00 pm-1:50 pm

1 stop30h 50m

$790

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 10/30

12:50 pm-12:25 pm

2 stops18h 35m

Knock Intl

Thu 11/6

1:00 pm-4:20 pm

2 stops33h 20m

$792

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 3/4

10:15 am-12:25 pm

2 stops44h 10m

Knock Intl

Sun 3/8

1:00 pm-5:45 pm

2 stops33h 45m

$797

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 11/9

4:45 pm-12:25 pm

2 stops37h 40m

Knock Intl

Sun 11/16

1:00 pm-3:25 pm

1 stop32h 25m

$803

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 10/30

10:45 pm-12:25 pm

1 stop32h 40m

Knock Intl

Thu 11/6

1:00 pm-1:50 pm

1 stop30h 50m

$837

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Knock from

How to get the cheapest flight ticket from Chicago 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 airlines fly to Knock?

United Airlines, American Airlines and British Airways are the top three most popular airlines that fly to Knock from Chicago according to our data. United Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Knock. Keep in mind that there are 3 different airlines that fly to Knock on a routine basis, so you have a few additional options to choose from.

When to book flights from Chicago to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Knock (CHI to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Knock

Direct flights

None
There are no direct flights from Chicago to Knock. There are no popular flight routes from Chicago to Knock.
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  • How far is Chicago to Knock Intl by plane?

    The straight-line distance from Chicago to Knock Intl is 3544.6 mi. By plane, this route typically takes 11h 40m.

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

    Prices for flights from Chicago to Knock Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Chicago 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 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 compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Knock. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Knock from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Chicago to Knock flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Chicago to Knock flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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