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Cheap flights from Illinois to Knock from €584

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Knock departing on 7/4. 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 Illinois to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:50 - 12:35
ORD
-
NOC
17h 45m2 stops
Multiple Airlines Logo
13:05 - 09:10
NOC
-
ORD
26h 05m2 stops
€584Multiple Airlines
Tue, 7 Apr - Wed, 15 Apr
Multiple Airlines Logo
18:00 - 12:35
ORD
-
NOC
12h 35m1 stop
Multiple Airlines Logo
13:05 - 12:20
NOC
-
ORD
29h 15m1 stop
€586Multiple Airlines
Tue, 7 Apr - Wed, 15 Apr
Multiple Airlines Logo
11:14 - 12:35
ORD
-
NOC
19h 21m2 stops
Multiple Airlines Logo
13:05 - 12:20
NOC
-
ORD
29h 15m1 stop
€590Multiple Airlines
Tue, 7 Apr - Wed, 15 Apr
Multiple Airlines Logo
15:35 - 12:25
ORD
-
NOC
15h 50m2 stops
Multiple Airlines Logo
13:00 - 14:01
NOC
-
ORD
30h 01m2 stops
€626Multiple Airlines
Sun, 22 Mar - Sat, 28 Mar
British Airways Logo
18:10 - 12:25
ORD
-
NOC
13h 15m1 stop
British Airways Logo
13:05 - 15:08
NOC
-
ORD
32h 03m2 stops
€676British Airways
Mon, 23 Mar - Sun, 29 Mar
British Airways Logo
15:16 - 12:25
ORD
-
NOC
16h 09m2 stops
British Airways Logo
13:05 - 18:07
NOC
-
ORD
35h 02m2 stops
€680British Airways
Sun, 22 Mar - Sun, 29 Mar
British Airways Logo
18:48 - 12:25
ORD
-
NOC
36h 37m2 stops
British Airways Logo
13:05 - 15:08
NOC
-
ORD
32h 03m2 stops
€685British Airways
Sat, 21 Mar - Sun, 29 Mar
Multiple Airlines Logo
18:10 - 12:25
ORD
-
NOC
13h 15m1 stop
Multiple Airlines Logo
13:05 - 13:50
NOC
-
ORD
30h 45m1 stop
€694Multiple Airlines
Mon, 23 Mar - Sun, 29 Mar
British Airways Logo
18:30 - 12:25
ORD
-
NOC
11h 55m1 stop
British Airways Logo
13:00 - 15:55
NOC
-
ORD
55h 55m2 stops
€714British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
16:19 - 12:25
ORD
-
NOC
15h 06m2 stops
British Airways Logo
13:00 - 15:55
NOC
-
ORD
55h 55m2 stops
€719British Airways
Wed, 11 Mar - Sun, 15 Mar

British Airways flights from Illinois to Knock

Our best British Airways deals on Illinois to Knock flight tickets
British Airways
23 Mar
ORD18:10Chicago O'Hare Intl
13h 15m
1 stop
NOC12:25Knock Intl
29 Mar
NOC13:05Knock Intl
32h 03m
2 stops
ORD15:08Chicago O'Hare Intl
€676
Find similar
British Airways
22 Mar
ORD15:16Chicago O'Hare Intl
16h 09m
2 stops
NOC12:25Knock Intl
29 Mar
NOC13:05Knock Intl
35h 02m
2 stops
ORD18:07Chicago O'Hare Intl
€680
Find similar
British Airways
21 Mar
ORD18:48Chicago O'Hare Intl
36h 37m
2 stops
NOC12:25Knock Intl
29 Mar
NOC13:05Knock Intl
32h 03m
2 stops
ORD15:08Chicago O'Hare Intl
€685
Find similar

Aer Lingus flights from Illinois to Knock

Our best Aer Lingus deals on Illinois to Knock flight tickets
Aer Lingus
23 Mar
ORD18:10Chicago O'Hare Intl
13h 15m
1 stop
NOC12:25Knock Intl
28 Mar
NOC13:00Knock Intl
29h 50m
1 stop
ORD13:50Chicago O'Hare Intl
€1,202
Find similar
Aer Lingus
21 Mar
ORD22:45Chicago O'Hare Intl
32h 40m
1 stop
NOC12:25Knock Intl
27 Mar
NOC13:00Knock Intl
30h 50m
1 stop
ORD14:50Chicago O'Hare Intl
€1,378
Find similar
Aer Lingus
23 Mar
ORD22:45Chicago O'Hare Intl
32h 40m
1 stop
NOC12:25Knock Intl
27 Mar
NOC13:00Knock Intl
30h 50m
1 stop
ORD14:50Chicago O'Hare Intl
€1,607
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Illinois 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 29 December 2025.
Use the filters below to find and compare flights from Illinois to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/4

12:50-12:35

2 stops17h 45m

Knock Intl

Wed 15/4

13:05-09:10

2 stops26h 05m

€584

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/4

18:00-12:35

1 stop12h 35m

Knock Intl

Wed 15/4

13:05-12:20

1 stop29h 15m

€586

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/4

11:14-12:35

2 stops19h 21m

Knock Intl

Wed 15/4

13:05-12:20

1 stop29h 15m

€590

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 22/3

15:35-12:25

2 stops15h 50m

Knock Intl

Sat 28/3

13:00-14:01

2 stops30h 01m

€626

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 23/3

18:10-12:25

1 stop13h 15m

Knock Intl

Sun 29/3

13:05-15:08

2 stops32h 03m

€676

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 22/3

15:16-12:25

2 stops16h 09m

Knock Intl

Sun 29/3

13:05-18:07

2 stops35h 02m

€680

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sat 21/3

18:48-12:25

2 stops36h 37m

Knock Intl

Sun 29/3

13:05-15:08

2 stops32h 03m

€685

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 23/3

18:10-12:25

1 stop13h 15m

Knock Intl

Sun 29/3

13:05-13:50

1 stop30h 45m

€694

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 4/3

18:30-12:25

1 stop11h 55m

Knock Intl

Sun 8/3

13:00-15:55

2 stops55h 55m

€714

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 11/3

16:19-12:25

2 stops15h 06m

Knock Intl

Sun 15/3

13:00-15:55

2 stops55h 55m

€719

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap Illinois to Knock flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Knock

Fastest flight time

11h 30m

Direct flights

None
The fastest flight from Illinois to Knock takes 11h 30m
There are no direct flights from Illinois to Knock. There are no popular flight routes from Illinois to Knock.
Search flight deals

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

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

  • How old do you have to be to fly from Illinois to Knock Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Knock Intl Airport.

  • What documentation or ID do you need to fly to Knock Intl Airport?

    The travel and health documents you'll need for your trip to Knock Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Knock Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

    Search flight deals from Illinois to Knock. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Illinois 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 compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 Illinois 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 Illinois.

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

momondo does allow users to show only those flights to Knock from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to Knock?

Once you have performed a search for Illinois to Knock flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Illinois to Knock right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Illinois to Knock flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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