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Cheap flights from Chicago to Knock from €274

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 30/9. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Chicago to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:55 - 12:25ORD  Chicago O'Hare Intl-NOC Knock Intl
16h 30m2 stops Montreal Pierre Elliott Trudeau Intl London Heathrow
Multiple Airlines Logo
13:00 - 07:58NOC  Knock Intl-ORD Chicago O'Hare Intl
24h 58m2 stops London Heathrow Toronto Pearson Intl
€806Multiple Airlines
Sun, 10 Jan - Tue, 19 Jan
Multiple Airlines Logo
19:25 - 15:30ORD  Chicago O'Hare Intl-NOC Knock Intl
14h 05m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
16:15 - 14:00NOC  Knock Intl-ORD Chicago O'Hare Intl
27h 45m2 stops Alicante Dublin
€835Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
Multiple Airlines Logo
15:45 - 12:25ORD  Chicago O'Hare Intl-NOC Knock Intl
14h 40m1 stop London Heathrow
Multiple Airlines Logo
13:00 - 10:45NOC  Knock Intl-ORD Chicago O'Hare Intl
27h 45m1 stop London Heathrow
€839Multiple Airlines
Sun, 10 Jan - Thu, 21 Jan
Multiple Airlines Logo
13:55 - 12:25ORD  Chicago O'Hare Intl-NOC Knock Intl
16h 30m2 stops Montreal Pierre Elliott Trudeau Intl London Heathrow
Multiple Airlines Logo
13:00 - 10:45NOC  Knock Intl-ORD Chicago O'Hare Intl
27h 45m1 stop London Heathrow
€842Multiple Airlines
Sun, 10 Jan - Tue, 19 Jan
British Airways Logo
21:50 - 12:25ORD  Chicago O'Hare Intl-NOC Knock Intl
32h 35m1 stop London Heathrow
British Airways Logo
13:00 - 19:15NOC  Knock Intl-ORD Chicago O'Hare Intl
12h 15m1 stop London Heathrow
€849British Airways
Tue, 12 Jan - Fri, 22 Jan
British Airways Logo
15:09 - 12:25ORD  Chicago O'Hare Intl-NOC Knock Intl
39h 16m2 stops Atlanta Hartsfield-Jackson London Heathrow
British Airways Logo
13:00 - 19:15NOC  Knock Intl-ORD Chicago O'Hare Intl
12h 15m1 stop London Heathrow
€853British Airways
Tue, 12 Jan - Fri, 22 Jan
Multiple Airlines Logo
19:25 - 15:30ORD  Chicago O'Hare Intl-NOC Knock Intl
14h 05m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
16:15 - 14:00NOC  Knock Intl-ORD Chicago O'Hare Intl
27h 45m2 stops Alicante Dublin
€854Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
British Airways Logo
18:31 - 12:25ORD  Chicago O'Hare Intl-NOC Knock Intl
35h 54m2 stops Toronto Pearson Intl London Heathrow
British Airways Logo
13:00 - 19:15NOC  Knock Intl-ORD Chicago O'Hare Intl
12h 15m1 stop London Heathrow
€855British Airways
Sat, 9 Jan - Thu, 21 Jan
British Airways Logo
15:33 - 12:25ORD  Chicago O'Hare Intl-NOC Knock Intl
14h 52m2 stops Boston Logan Intl London Heathrow
British Airways Logo
13:00 - 12:30NOC  Knock Intl-ORD Chicago O'Hare Intl
29h 30m2 stops London Heathrow Toronto Pearson Intl
€860British Airways
Wed, 13 Jan - Thu, 21 Jan
Multiple Airlines Logo
19:25 - 15:30ORD  Chicago O'Hare Intl-NOC Knock Intl
14h 05m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
16:05 - 16:00NOC  Knock Intl-ORD Chicago O'Hare Intl
29h 55m3 stops London Luton Milan Malpensa Lisbon Humberto Delgado
€891Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep

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British Airways flights from Chicago to Knock

Our best British Airways deals on Chicago to Knock flight tickets
British Airways
12 Jan
ORD21:50Chicago O'Hare Intl
32h 35m
1 stop
NOC12:25Knock Intl
22 Jan
NOC13:00Knock Intl
12h 15m
1 stop
ORD19:15Chicago O'Hare Intl
€849
British Airways
12 Jan
ORD15:09Chicago O'Hare Intl
39h 16m
2 stops
NOC12:25Knock Intl
22 Jan
NOC13:00Knock Intl
12h 15m
1 stop
ORD19:15Chicago O'Hare Intl
€853
British Airways
9 Jan
ORD15:37Chicago O'Hare Intl
38h 48m
2 stops
NOC12:25Knock Intl
22 Jan
NOC13:00Knock Intl
12h 15m
1 stop
ORD19:15Chicago O'Hare Intl
€855

Aer Lingus flights from Chicago to Knock

Our best Aer Lingus deals on Chicago to Knock flight tickets
Aer Lingus
31 Aug
ORD15:45Chicago O'Hare Intl
14h 50m
2 stops
NOC12:35Knock Intl
8 Sept
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€964
Aer Lingus
31 Aug
ORD15:45Chicago O'Hare Intl
14h 50m
2 stops
NOC12:35Knock Intl
4 Sept
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€1,018
Aer Lingus
24 Aug
ORD15:45Chicago O'Hare Intl
14h 50m
2 stops
NOC12:35Knock Intl
31 Aug
NOC13:05Knock Intl
28h 25m
2 stops
ORD11:30Chicago O'Hare Intl
€1,058

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 7 August 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
Fastest return journey

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Sun 10/1

13:55-12:25

2 stops16h 30m

Knock Intl

Tue 19/1

13:00-07:58

2 stops24h 58m

€806

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Sat 19/9

19:25-15:30

2 stops14h 05m

Knock Intl

Sat 26/9

16:15-14:00

2 stops27h 45m

€835

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Sun 10/1

15:45-12:25

1 stop14h 40m

Knock Intl

Thu 21/1

13:00-10:45

1 stop27h 45m

€839

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Sun 10/1

13:55-12:25

2 stops16h 30m

Knock Intl

Tue 19/1

13:00-10:45

1 stop27h 45m

€842

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Tue 12/1

21:50-12:25

1 stop32h 35m

Knock Intl

Fri 22/1

13:00-19:15

1 stop12h 15m

€849

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Tue 12/1

15:09-12:25

2 stops39h 16m

Knock Intl

Fri 22/1

13:00-19:15

1 stop12h 15m

€853

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Sat 19/9

19:25-15:30

2 stops14h 05m

Knock Intl

Sat 26/9

16:15-14:00

2 stops27h 45m

€854

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Sat 9/1

18:31-12:25

2 stops35h 54m

Knock Intl

Thu 21/1

13:00-19:15

1 stop12h 15m

€855

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Wed 13/1

15:33-12:25

2 stops14h 52m

Knock Intl

Thu 21/1

13:00-12:30

2 stops29h 30m

€860

ChicagoKnock

ORD Chicago O'Hare Intl - NOC Knock Intl

ORDNOC

Chicago O'Hare Intl

Sat 19/9

19:25-15:30

2 stops14h 05m

Knock Intl

Sat 26/9

16:05-16:00

3 stops29h 55m

€891

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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.
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Frequently asked questions about flying from Chicago to Knock

  • 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.

Frequently asked questions about flying from Chicago to Knock

  • How do I get Price Alerts for flights from Chicago to Knock?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Chicago 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 to Knock with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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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