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Cheap flights from Chicago to Knock from €360

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 to Knock departing on 9/4. 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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Find the cheapest flights from Chicago to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
21:15 - 12:35
ORD
-
NOC
33h 20m
1 stop
Multiple Airlines Logo
13:05 - 14:55
NOC
-
ORD
31h 50m
1 stop
€649Multiple Airlines
Thu, 9 Apr - Thu, 16 Apr
Aer Lingus Logo
21:15 - 12:35
ORD
-
NOC
33h 20m
1 stop
Aer Lingus Logo
13:05 - 14:00
NOC
-
ORD
30h 55m
2 stops
€654Aer Lingus
Thu, 9 Apr - Thu, 16 Apr
Aer Lingus Logo
21:00 - 12:35
ORD
-
NOC
33h 35m
2 stops
Aer Lingus Logo
13:05 - 14:00
NOC
-
ORD
30h 55m
2 stops
€748Aer Lingus
Thu, 9 Apr - Thu, 16 Apr
British Airways Logo
16:30 - 12:35
ORD
-
NOC
14h 05m
2 stops
British Airways Logo
13:05 - 00:42
NOC
-
ORD
17h 37m
2 stops
€1,440British Airways
Tue, 2 Jun - Sun, 7 Jun
British Airways Logo
19:05 - 12:35
ORD
-
NOC
11h 30m
1 stop
British Airways Logo
13:05 - 00:42
NOC
-
ORD
17h 37m
2 stops
€1,477British Airways
Tue, 2 Jun - Sun, 7 Jun

British Airways flights from Chicago to Knock

Our best British Airways deals on Chicago to Knock flight tickets
British Airways
4 Mar
ORD18:30Chicago O'Hare Intl
11h 55m
1 stop
NOC12:25Knock Intl
8 Mar
NOC13:00Knock Intl
32h 14m
2 stops
ORD16:14Chicago O'Hare Intl
€1,132
British Airways
4 Mar
ORD18:30Chicago O'Hare Intl
11h 55m
1 stop
NOC12:25Knock Intl
8 Mar
NOC13:00Knock Intl
34h 00m
1 stop
ORD18:00Chicago O'Hare Intl
€1,134
British Airways
4 Mar
ORD11:38Chicago O'Hare Intl
18h 47m
2 stops
NOC12:25Knock Intl
8 Mar
NOC13:00Knock Intl
32h 14m
2 stops
ORD16:14Chicago O'Hare Intl
€1,135

Aer Lingus flights from Chicago to Knock

Our best Aer Lingus deals on Chicago to Knock flight tickets
Aer Lingus
9 Apr
ORD21:15Chicago O'Hare Intl
33h 20m
1 stop
NOC12:35Knock Intl
16 Apr
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€654
Aer Lingus
9 Apr
ORD21:00Chicago O'Hare Intl
33h 35m
2 stops
NOC12:35Knock Intl
16 Apr
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€748

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 26 February 2026.
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

Thu 9/4

21:15-12:35

1 stop33h 20m

Knock Intl

Thu 16/4

13:05-14:55

1 stop31h 50m

€649

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 9/4

21:15-12:35

1 stop33h 20m

Knock Intl

Thu 16/4

13:05-14:00

2 stops30h 55m

€654

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 9/4

21:00-12:35

2 stops33h 35m

Knock Intl

Thu 16/4

13:05-14:00

2 stops30h 55m

€748

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 2/6

16:30-12:35

2 stops14h 05m

Knock Intl

Sun 7/6

13:05-00:42

2 stops17h 37m

€1,440

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 2/6

19:05-12:35

1 stop11h 30m

Knock Intl

Sun 7/6

13:05-00:42

2 stops17h 37m

€1,477

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 9/4

19:25-11:45

3 stops34h 20m

€360

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 9/4

21:00-08:30

2 stops29h 30m

€434

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 6/5

16:36-12:35

2 stops13h 59m

€447

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 6/5

19:05-12:35

1 stop11h 30m

€522

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 9/4

21:20-12:35

1 stop33h 15m

€540

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
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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 is the cheapest airline that flies from Chicago to Knock Intl?

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

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 return 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

Fastest flight time

13h 15m

Direct flights

None
The fastest flight from Chicago to Knock takes 13h 15m
There are no direct flights from Chicago to Knock. There are no popular flight routes from Chicago to Knock.
Search flight deals

  • How far is Chicago to Knock Intl by plane?

    A flight from Chicago to Knock Intl will travel around 5704.4 km. Flights usually cover this in 13h 15m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Chicago to Knock Intl Airport refresh daily.

  • 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 stopovers 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 necessary travel and health documents for your Knock Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Knock for you.

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

Yes. momondo allows you to filter the results for Chicago to Knock flights to just show those with flexible booking policies.

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?

Price alerts on flights to Knock from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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