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Cheap flights from Chicago to Knock from €306

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 10/9. 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
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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
22:30 - 12:35
ORD
-
NOC
32h 05m
1 stop
Multiple Airlines Logo
13:05 - 13:50
NOC
-
ORD
30h 45m
1 stop
€826Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
18:15 - 12:35
ORD
-
NOC
12h 20m
1 stop
Multiple Airlines Logo
13:05 - 15:00
NOC
-
ORD
31h 55m
1 stop
€828Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
14:15 - 12:35
ORD
-
NOC
16h 20m
2 stops
Multiple Airlines Logo
13:05 - 08:00
NOC
-
ORD
24h 55m
2 stops
€849Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
22:30 - 12:35
ORD
-
NOC
32h 05m
1 stop
Multiple Airlines Logo
13:05 - 19:46
NOC
-
ORD
36h 41m
2 stops
€850Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
18:15 - 12:35
ORD
-
NOC
12h 20m
1 stop
Multiple Airlines Logo
13:05 - 19:46
NOC
-
ORD
36h 41m
2 stops
€854Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
22:30 - 12:35
ORD
-
NOC
32h 05m
1 stop
Multiple Airlines Logo
13:05 - 11:30
NOC
-
ORD
28h 25m
2 stops
€861Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
15:25 - 12:35
ORD
-
NOC
15h 10m
2 stops
Multiple Airlines Logo
13:05 - 08:30
NOC
-
ORD
25h 25m
2 stops
€865Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
British Airways Logo
16:30 - 12:35
ORD
-
NOC
14h 05m
2 stops
British Airways Logo
13:05 - 11:30
NOC
-
ORD
28h 25m
2 stops
€870British Airways
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
22:30 - 12:35
ORD
-
NOC
32h 05m
1 stop
Multiple Airlines Logo
13:05 - 13:50
NOC
-
ORD
30h 45m
1 stop
€876Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Multiple Airlines Logo
11:25 - 16:55
ORD
-
NOC
23h 30m
2 stops
Multiple Airlines Logo
09:25 - 09:40
NOC
-
ORD
30h 15m
2 stops
€918Multiple Airlines
Fri, 9 Oct - Wed, 14 Oct

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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 16 June 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

Mon 24/8

22:30-12:35

1 stop32h 05m

Knock Intl

Mon 31/8

13:05-13:50

1 stop30h 45m

€826

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 24/8

18:15-12:35

1 stop12h 20m

Knock Intl

Mon 31/8

13:05-15:00

1 stop31h 55m

€828

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 24/8

14:15-12:35

2 stops16h 20m

Knock Intl

Mon 31/8

13:05-08:00

2 stops24h 55m

€849

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 24/8

22:30-12:35

1 stop32h 05m

Knock Intl

Mon 31/8

13:05-19:46

2 stops36h 41m

€850

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 24/8

18:15-12:35

1 stop12h 20m

Knock Intl

Mon 31/8

13:05-19:46

2 stops36h 41m

€854

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 24/8

22:30-12:35

1 stop32h 05m

Knock Intl

Mon 31/8

13:05-11:30

2 stops28h 25m

€861
Fastest return journey

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 24/8

15:25-12:35

2 stops15h 10m

Knock Intl

Mon 31/8

13:05-08:30

2 stops25h 25m

€865

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 24/8

16:30-12:35

2 stops14h 05m

Knock Intl

Mon 31/8

13:05-11:30

2 stops28h 25m

€870

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 24/8

22:30-12:35

1 stop32h 05m

Knock Intl

Mon 31/8

13:05-13:50

1 stop30h 45m

€876

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Fri 9/10

11:25-16:55

2 stops23h 30m

Knock Intl

Wed 14/10

09:25-09:40

2 stops30h 15m

€918

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
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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

12h 20m

Direct flights

None
The fastest flight from Chicago to Knock takes 12h 20m
There are no direct flights from Chicago to Knock. There are no popular flight routes from Chicago to Knock.
Search flight deals

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 12h 20m, 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
Westport
Sligo
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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