Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Chicago to Knock from €652

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Knock departing on 4/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Chicago to Knock

Cheap return flights

Enter your travel dates to find the best prices.
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
€652Aer Lingus
Tue, 4 Aug - Tue, 11 Aug
Aer Lingus Logo
17:00 - 12:35
ORD
-
NOC
13h 35m
1 stop
Aer Lingus Logo
13:05 - 19:15
NOC
-
ORD
36h 10m
2 stops
€668Aer Lingus
Tue, 4 Aug - Tue, 11 Aug
Multiple Airlines Logo
17:55 - 12:35
ORD
-
NOC
12h 40m
1 stop
Multiple Airlines Logo
13:05 - 14:55
NOC
-
ORD
31h 50m
1 stop
€678Multiple Airlines
Wed, 22 Apr - Wed, 29 Apr
Multiple Airlines Logo
13:00 - 12:35
ORD
-
NOC
17h 35m
2 stops
Multiple Airlines Logo
13:05 - 10:55
NOC
-
ORD
27h 50m
1 stop
€689Multiple Airlines
Wed, 22 Apr - Wed, 29 Apr
Aer Lingus Logo
15:45 - 12:35
ORD
-
NOC
14h 50m
2 stops
Aer Lingus Logo
13:05 - 19:15
NOC
-
ORD
36h 10m
2 stops
€703Aer Lingus
Wed, 22 Apr - Wed, 29 Apr
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
€705British Airways
Tue, 4 Aug - Tue, 11 Aug
Multiple Airlines Logo
19:05 - 12:35
ORD
-
NOC
11h 30m
1 stop
Multiple Airlines Logo
13:05 - 09:05
NOC
-
ORD
26h 00m
2 stops
€831Multiple Airlines
Wed, 26 Aug - Tue, 1 Sep
Multiple Airlines Logo
14:52 - 12:35
ORD
-
NOC
15h 43m
2 stops
Multiple Airlines Logo
13:05 - 07:25
NOC
-
ORD
24h 20m
2 stops
€835Multiple Airlines
Wed, 26 Aug - Tue, 1 Sep
Aer Lingus Logo
22:25 - 12:35
ORD
-
NOC
32h 10m
2 stops
Aer Lingus Logo
13:05 - 11:30
NOC
-
ORD
28h 25m
2 stops
€843Aer Lingus
Mon, 1 Jun - Sat, 6 Jun
Multiple Airlines Logo
07:10 - 17:05
ORD
-
NOC
27h 55m
3 stops
Multiple Airlines Logo
08:55 - 11:50
NOC
-
ORD
32h 55m
2 stops
€981Multiple Airlines
Mon, 1 Jun - Sat, 6 Jun

Aer Lingus flights from Chicago to Knock

Our best Aer Lingus deals on Chicago to Knock flight tickets
Aer Lingus
4 Aug
ORD15:45Chicago O'Hare Intl
14h 50m
2 stops
NOC12:35Knock Intl
11 Aug
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€652
Aer Lingus
4 Aug
ORD17:00Chicago O'Hare Intl
13h 35m
1 stop
NOC12:35Knock Intl
11 Aug
NOC13:05Knock Intl
36h 10m
2 stops
ORD19:15Chicago O'Hare Intl
€668
Aer Lingus
22 Apr
ORD15:45Chicago O'Hare Intl
14h 50m
2 stops
NOC12:35Knock Intl
29 Apr
NOC13:05Knock Intl
36h 10m
2 stops
ORD19:15Chicago O'Hare Intl
€703

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 11 March 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

Cheapest return flight

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 4/8

15:45-12:35

2 stops14h 50m

Knock Intl

Tue 11/8

13:05-14:00

2 stops30h 55m

€652

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 4/8

17:00-12:35

1 stop13h 35m

Knock Intl

Tue 11/8

13:05-19:15

2 stops36h 10m

€668

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 22/4

17:55-12:35

1 stop12h 40m

Knock Intl

Wed 29/4

13:05-14:55

1 stop31h 50m

€678

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 22/4

13:00-12:35

2 stops17h 35m

Knock Intl

Wed 29/4

13:05-10:55

1 stop27h 50m

€689

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 22/4

15:45-12:35

2 stops14h 50m

Knock Intl

Wed 29/4

13:05-19:15

2 stops36h 10m

€703

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 4/8

19:05-12:35

1 stop11h 30m

Knock Intl

Tue 11/8

13:05-12:30

1 stop29h 25m

€705
Fastest return journey

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 26/8

19:05-12:35

1 stop11h 30m

Knock Intl

Tue 1/9

13:05-09:05

2 stops26h 00m

€831

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 26/8

14:52-12:35

2 stops15h 43m

Knock Intl

Tue 1/9

13:05-07:25

2 stops24h 20m

€835

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 1/6

22:25-12:35

2 stops32h 10m

Knock Intl

Sat 6/6

13:05-11:30

2 stops28h 25m

€843

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 1/6

07:10-17:05

3 stops27h 55m

Knock Intl

Sat 6/6

08:55-11:50

2 stops32h 55m

€981

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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

11h 30m

Direct flights

None
The fastest flight from Chicago to Knock takes 11h 30m
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 11h 30m, 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.

An easier way to manage your Knock trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 10/4
Fri 17/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland