Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Chicago O'Hare Intl Airport to Knock from €693

This is the cheapest return 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 18/9. 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
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 O'Hare Intl Airport to Knock

Cheap return flights

Logo
22:15 - 12:35ORD-NOC
32h 20m3 stops
Logo
13:05 - 18:15NOC-ORD
35h 10m3 stops
€693
Find Deal
Thu, 18 Sep - Thu, 25 Sep
British Airways Logo
18:45 - 12:25ORD-NOC
11h 40m1 stop
British Airways Logo
13:00 - 13:50NOC-ORD
30h 50m1 stop
€785British Airways
Find Deal
Sun, 9 Nov - Sun, 16 Nov
Logo
11:25 - 16:40ORD-NOC
23h 15m3 stops
Logo
13:05 - 16:30NOC-ORD
33h 25m2 stops
€811
Find Deal
Thu, 18 Sep - Thu, 25 Sep
Logo
17:40 - 12:35ORD-NOC
12h 55m1 stop
Logo
13:05 - 14:50NOC-ORD
31h 45m1 stop
€820
Find Deal
Wed, 17 Sep - Wed, 24 Sep
Logo
11:13 - 12:35ORD-NOC
19h 22m3 stops
Logo
09:50 - 09:18NOC-ORD
29h 28m3 stops
€858
Find Deal
Wed, 17 Sep - Wed, 24 Sep
Aer Lingus Logo
15:45 - 12:35ORD-NOC
14h 50m2 stops
Aer Lingus Logo
13:05 - 15:45NOC-ORD
32h 40m2 stops
€864Aer Lingus
Find Deal
Wed, 17 Sep - Wed, 24 Sep
Logo
17:40 - 12:35ORD-NOC
12h 55m1 stop
Logo
13:05 - 14:50NOC-ORD
31h 45m1 stop
€881
Find Deal
Thu, 18 Sep - Thu, 25 Sep
Logo
17:40 - 12:35ORD-NOC
12h 55m1 stop
Logo
13:05 - 14:15NOC-ORD
31h 10m2 stops
€881
Find Deal
Wed, 17 Sep - Wed, 24 Sep
Logo
13:59 - 12:35ORD-NOC
16h 36m2 stops
Logo
13:05 - 14:50NOC-ORD
31h 45m1 stop
€885
Find Deal
Thu, 18 Sep - Thu, 25 Sep
British Airways Logo
16:55 - 12:35ORD-NOC
13h 40m1 stop
British Airways Logo
13:05 - 14:50NOC-ORD
31h 45m1 stop
€1,182British Airways
Find Deal
Fri, 29 Aug - Sun, 7 Sep

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
9 Nov
ORD18:45Chicago O'Hare Intl
11h 40m
1 stop
NOC12:25Knock Intl
16 Nov
NOC13:00Knock Intl
30h 50m
1 stop
ORD13:50Chicago O'Hare Intl
€785
Find similar
British Airways
29 Aug
ORD16:55Chicago O'Hare Intl
13h 40m
1 stop
NOC12:35Knock Intl
7 Sept
NOC13:05Knock Intl
31h 45m
1 stop
ORD14:50Chicago O'Hare Intl
€1,182
Find similar
British Airways
29 Aug
ORD19:15Chicago O'Hare Intl
11h 20m
1 stop
NOC12:35Knock Intl
7 Sept
NOC13:05Knock Intl
31h 45m
1 stop
ORD14:50Chicago O'Hare Intl
€1,183
Find similar

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 5 August 2025.
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

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 18/9

22:15-12:35

3 stops32h 20m

Knock Intl

Thu 25/9

13:05-18:15

3 stops35h 10m

€693

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 9/11

18:45-12:25

1 stop11h 40m

Knock Intl

Sun 16/11

13:00-13:50

1 stop30h 50m

€785

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 18/9

11:25-16:40

3 stops23h 15m

Knock Intl

Thu 25/9

13:05-16:30

2 stops33h 25m

€811

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 17/9

17:40-12:35

1 stop12h 55m

Knock Intl

Wed 24/9

13:05-14:50

1 stop31h 45m

€820

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 17/9

11:13-12:35

3 stops19h 22m

Knock Intl

Wed 24/9

09:50-09:18

3 stops29h 28m

€858

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 17/9

15:45-12:35

2 stops14h 50m

Knock Intl

Wed 24/9

13:05-15:45

2 stops32h 40m

€864

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 18/9

17:40-12:35

1 stop12h 55m

Knock Intl

Thu 25/9

13:05-14:50

1 stop31h 45m

€881

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 17/9

17:40-12:35

1 stop12h 55m

Knock Intl

Wed 24/9

13:05-14:15

2 stops31h 10m

€881

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 18/9

13:59-12:35

2 stops16h 36m

Knock Intl

Thu 25/9

13:05-14:50

1 stop31h 45m

€885

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Fri 29/8

16:55-12:35

1 stop13h 40m

Knock Intl

Sun 7/9

13:05-14:50

1 stop31h 45m

€1,182

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

Best price found

€693

Fastest flight time

11h 20m

Direct flights

None

Airports in Knock

1 airport
The best flight deal from Chicago O'Hare Intl Airport to Knock found on momondo in the last 72 hours is €693
The fastest flight from Chicago O'Hare Intl Airport to Knock takes 11h 20m
There are no direct flights from Chicago O'Hare Intl Airport to Knock. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Knock Intl Airport.
There is 1 airport near Knock: Knock Intl (NOC)
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 11h 20m.

  • 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.

  • How do I get Price Alerts for flights from Chicago O'Hare Intl Airport to Knock?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Chicago O'Hare Intl Airport from Knock. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Chicago O'Hare Intl Airport to Knock with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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
Newport

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.

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
Sun 10/8
Sun 17/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland