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Cheap flights from Illinois to Knock from €917

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 26/8. 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
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
11:05 - 12:35
ORD
-
NOC
19h 30m
2 stops
Multiple Airlines Logo
13:05 - 09:00
NOC
-
ORD
25h 55m
2 stops
€917Multiple Airlines
Wed, 26 Aug - Tue, 1 Sep
Multiple Airlines Logo
09:04 - 12:35
ORD
-
NOC
21h 31m
2 stops
Multiple Airlines Logo
13:00 - 20:10
NOC
-
ORD
36h 10m
2 stops
€926Multiple Airlines
Thu, 15 Oct - Sun, 25 Oct
Multiple Airlines Logo
19:05 - 12:35
ORD
-
NOC
11h 30m
1 stop
Multiple Airlines Logo
13:05 - 08:30
NOC
-
ORD
25h 25m
2 stops
€937Multiple Airlines
Wed, 26 Aug - Tue, 1 Sep
Multiple Airlines Logo
14:36 - 12:35
ORD
-
NOC
15h 59m
2 stops
Multiple Airlines Logo
13:05 - 08:30
NOC
-
ORD
25h 25m
2 stops
€942Multiple Airlines
Wed, 26 Aug - Tue, 1 Sep
Multiple Airlines Logo
17:55 - 12:35
ORD
-
NOC
12h 40m
1 stop
Multiple Airlines Logo
13:00 - 18:55
NOC
-
ORD
34h 55m
2 stops
€986Multiple Airlines
Thu, 15 Oct - Sun, 25 Oct
Multiple Airlines Logo
17:55 - 12:35
ORD
-
NOC
12h 40m
1 stop
Multiple Airlines Logo
13:00 - 14:50
NOC
-
ORD
30h 50m
1 stop
€1,000Multiple Airlines
Thu, 15 Oct - Sun, 25 Oct
Aer Lingus Logo
21:00 - 12:35
ORD
-
NOC
33h 35m
2 stops
Aer Lingus Logo
13:05 - 14:00
NOC
-
ORD
30h 55m
2 stops
€1,128Aer Lingus
Mon, 14 Sep - Fri, 18 Sep
Aer Lingus Logo
15:45 - 12:35
ORD
-
NOC
14h 50m
2 stops
Aer Lingus Logo
13:05 - 13:50
NOC
-
ORD
30h 45m
1 stop
€1,155Aer Lingus
Mon, 14 Sep - Fri, 18 Sep
British Airways Logo
19:05 - 12:35
ORD
-
NOC
11h 30m
1 stop
British Airways Logo
13:05 - 00:42
NOC
-
ORD
17h 37m
2 stops
€1,164British Airways
Fri, 29 May - Mon, 1 Jun
Multiple Airlines Logo
18:10 - 12:35
ORD
-
NOC
12h 25m
1 stop
Multiple Airlines Logo
13:05 - 00:50
NOC
-
ORD
17h 45m
2 stops
€1,185Multiple Airlines
Fri, 26 Jun - Fri, 3 Jul

British Airways flights from Illinois to Knock

Our best British Airways deals on Illinois to Knock flight tickets
British Airways
29 May
ORD19:05Chicago O'Hare Intl
11h 30m
1 stop
NOC12:35Knock Intl
1 Jun
NOC13:05Knock Intl
17h 37m
2 stops
ORD00:42Chicago O'Hare Intl
€1,164
British Airways
29 May
ORD16:29Chicago O'Hare Intl
14h 06m
2 stops
NOC12:35Knock Intl
1 Jun
NOC13:05Knock Intl
17h 37m
2 stops
ORD00:42Chicago O'Hare Intl
€1,187
British Airways
9 Jun
ORD16:33Chicago O'Hare Intl
14h 02m
2 stops
NOC12:35Knock Intl
16 Jun
NOC13:05Knock Intl
17h 34m
2 stops
ORD00:39Chicago O'Hare Intl
€1,285

Aer Lingus flights from Illinois to Knock

Our best Aer Lingus deals on Illinois to Knock flight tickets
Aer Lingus
14 Sept
ORD21:00Chicago O'Hare Intl
33h 35m
2 stops
NOC12:35Knock Intl
18 Sept
NOC13:05Knock Intl
30h 55m
2 stops
ORD14:00Chicago O'Hare Intl
€1,128
Aer Lingus
14 Sept
ORD15:45Chicago O'Hare Intl
14h 50m
2 stops
NOC12:35Knock Intl
18 Sept
NOC13:05Knock Intl
30h 45m
1 stop
ORD13:50Chicago O'Hare Intl
€1,155
Aer Lingus
14 Sept
ORD17:00Chicago O'Hare Intl
13h 35m
1 stop
NOC12:35Knock Intl
18 Sept
NOC13:05Knock Intl
30h 45m
1 stop
ORD13:50Chicago O'Hare Intl
€1,262

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 12 May 2026.
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

Cheapest return flight

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 26/8

11:05-12:35

2 stops19h 30m

Knock Intl

Tue 1/9

13:05-09:00

2 stops25h 55m

€917

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 15/10

09:04-12:35

2 stops21h 31m

Knock Intl

Sun 25/10

13:00-20:10

2 stops36h 10m

€926

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 26/8

19:05-12:35

1 stop11h 30m

Knock Intl

Tue 1/9

13:05-08:30

2 stops25h 25m

€937

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 26/8

14:36-12:35

2 stops15h 59m

Knock Intl

Tue 1/9

13:05-08:30

2 stops25h 25m

€942

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 15/10

17:55-12:35

1 stop12h 40m

Knock Intl

Sun 25/10

13:00-18:55

2 stops34h 55m

€986

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Thu 15/10

17:55-12:35

1 stop12h 40m

Knock Intl

Sun 25/10

13:00-14:50

1 stop30h 50m

€1,000

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 14/9

21:00-12:35

2 stops33h 35m

Knock Intl

Fri 18/9

13:05-14:00

2 stops30h 55m

€1,128

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 14/9

15:45-12:35

2 stops14h 50m

Knock Intl

Fri 18/9

13:05-13:50

1 stop30h 45m

€1,155
Fastest return journey

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Fri 29/5

19:05-12:35

1 stop11h 30m

Knock Intl

Mon 1/6

13:05-00:42

2 stops17h 37m

€1,164

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Fri 26/6

18:10-12:35

1 stop12h 25m

Knock Intl

Fri 3/7

13:05-00:50

2 stops17h 45m

€1,185

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

Frequently asked questions about flying from Illinois to Knock

  • 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.

Frequently asked questions about flying from Illinois to Knock

  • 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.

An easier way to manage your Knock trip

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