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Cheap flights from Illinois to Knock from $852

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Knock departing on 7/17. 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 round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
3:45 pm - 12:35 pm
ORD
-
NOC
14h 50m
2 stops
Aer Lingus Logo
1:05 pm - 11:30 am
NOC
-
ORD
28h 25m
2 stops
$1,042Aer Lingus
Tue, Jul 14 - Tue, Jul 21
Multiple Airlines Logo
7:05 pm - 12:35 pm
ORD
-
NOC
11h 30m
1 stop
Multiple Airlines Logo
1:05 pm - 8:30 am
NOC
-
ORD
25h 25m
2 stops
$1,046Multiple Airlines
Wed, Aug 26 - Tue, Sep 1
Multiple Airlines Logo
5:35 pm - 12:35 pm
ORD
-
NOC
13h 00m
2 stops
Multiple Airlines Logo
1:05 pm - 9:00 am
NOC
-
ORD
25h 55m
2 stops
$1,047Multiple Airlines
Mon, Jul 20 - Thu, Jul 30
Multiple Airlines Logo
1:54 pm - 12:35 pm
ORD
-
NOC
16h 41m
2 stops
Multiple Airlines Logo
1:05 pm - 8:30 am
NOC
-
ORD
25h 25m
2 stops
$1,050Multiple Airlines
Wed, Aug 26 - Tue, Sep 1
Multiple Airlines Logo
2:53 pm - 12:35 pm
ORD
-
NOC
15h 42m
2 stops
Multiple Airlines Logo
1:05 pm - 8:30 am
NOC
-
ORD
25h 25m
2 stops
$1,051Multiple Airlines
Wed, Aug 26 - Tue, Sep 1
Aer Lingus Logo
5:00 pm - 12:35 pm
ORD
-
NOC
13h 35m
1 stop
Aer Lingus Logo
1:05 pm - 11:30 am
NOC
-
ORD
28h 25m
2 stops
$1,053Aer Lingus
Tue, Jul 14 - Tue, Jul 21
Aer Lingus Logo
3:45 pm - 12:35 pm
ORD
-
NOC
14h 50m
2 stops
Aer Lingus Logo
1:05 pm - 11:30 am
NOC
-
ORD
28h 25m
2 stops
$1,060Aer Lingus
Tue, Jun 30 - Tue, Jul 7
Multiple Airlines Logo
3:45 pm - 12:35 pm
ORD
-
NOC
14h 50m
2 stops
Multiple Airlines Logo
1:05 pm - 12:30 pm
NOC
-
ORD
29h 25m
1 stop
$1,068Multiple Airlines
Tue, Jun 30 - Tue, Jul 7
Multiple Airlines Logo
5:00 pm - 12:35 pm
ORD
-
NOC
13h 35m
1 stop
Multiple Airlines Logo
1:05 pm - 12:30 pm
NOC
-
ORD
29h 25m
1 stop
$1,069Multiple Airlines
Tue, Jun 30 - Tue, Jul 7
Multiple Airlines Logo
5:00 pm - 12:35 pm
ORD
-
NOC
13h 35m
1 stop
Multiple Airlines Logo
1:05 pm - 12:30 pm
NOC
-
ORD
29h 25m
1 stop
$1,084Multiple Airlines
Tue, Jul 14 - Tue, Jul 21

Aer Lingus flights from Illinois to Knock

Our best Aer Lingus deals on Illinois to Knock flight tickets
Aer Lingus
Jul 14
ORD3:45 pmChicago O'Hare Intl
14h 50m
2 stops
NOC12:35 pmKnock Intl
Jul 21
NOC1:05 pmKnock Intl
28h 25m
2 stops
ORD11:30 amChicago O'Hare Intl
$1,042
Aer Lingus
Jul 14
ORD5:00 pmChicago O'Hare Intl
13h 35m
1 stop
NOC12:35 pmKnock Intl
Jul 21
NOC1:05 pmKnock Intl
28h 25m
2 stops
ORD11:30 amChicago O'Hare Intl
$1,053
Aer Lingus
Jun 30
ORD3:45 pmChicago O'Hare Intl
14h 50m
2 stops
NOC12:35 pmKnock Intl
Jul 7
NOC1:05 pmKnock Intl
28h 25m
2 stops
ORD11:30 amChicago O'Hare Intl
$1,060

British Airways flights from Illinois to Knock

Our best British Airways deals on Illinois to Knock flight tickets
British Airways
Jun 12
ORD6:10 pmChicago O'Hare Intl
12h 25m
1 stop
NOC12:35 pmKnock Intl
Jun 19
NOC1:05 pmKnock Intl
32h 39m
2 stops
ORD3:44 pmChicago O'Hare Intl
$1,297
British Airways
May 29
ORD7:05 pmChicago O'Hare Intl
11h 30m
1 stop
NOC12:35 pmKnock Intl
Jun 1
NOC1:05 pmKnock Intl
17h 37m
2 stops
ORD12:42 amChicago O'Hare Intl
$1,367
British Airways
May 29
ORD4:29 pmChicago O'Hare Intl
14h 06m
2 stops
NOC12:35 pmKnock Intl
Jun 1
NOC1:05 pmKnock Intl
17h 37m
2 stops
ORD12:42 amChicago O'Hare Intl
$1,394

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated May 17, 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 round-trip

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/14

3:45 pm-12:35 pm

2 stops14h 50m

Knock Intl

Tue 7/21

1:05 pm-11:30 am

2 stops28h 25m

$1,042
Quickest round-trip

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 8/26

7:05 pm-12:35 pm

1 stop11h 30m

Knock Intl

Tue 9/1

1:05 pm-8:30 am

2 stops25h 25m

$1,046

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Mon 7/20

5:35 pm-12:35 pm

2 stops13h 00m

Knock Intl

Thu 7/30

1:05 pm-9:00 am

2 stops25h 55m

$1,047

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 8/26

1:54 pm-12:35 pm

2 stops16h 41m

Knock Intl

Tue 9/1

1:05 pm-8:30 am

2 stops25h 25m

$1,050

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 8/26

2:53 pm-12:35 pm

2 stops15h 42m

Knock Intl

Tue 9/1

1:05 pm-8:30 am

2 stops25h 25m

$1,051

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/14

5:00 pm-12:35 pm

1 stop13h 35m

Knock Intl

Tue 7/21

1:05 pm-11:30 am

2 stops28h 25m

$1,053

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 6/30

3:45 pm-12:35 pm

2 stops14h 50m

Knock Intl

Tue 7/7

1:05 pm-11:30 am

2 stops28h 25m

$1,060

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 6/30

3:45 pm-12:35 pm

2 stops14h 50m

Knock Intl

Tue 7/7

1:05 pm-12:30 pm

1 stop29h 25m

$1,068

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 6/30

5:00 pm-12:35 pm

1 stop13h 35m

Knock Intl

Tue 7/7

1:05 pm-12:30 pm

1 stop29h 25m

$1,069

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 7/14

5:00 pm-12:35 pm

1 stop13h 35m

Knock Intl

Tue 7/21

1:05 pm-12:30 pm

1 stop29h 25m

$1,084

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Knock from

How to get the cheapest flight ticket from Illinois to Knock

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Knock Intl?

British Airways is the most popular carrier operating from Illinois to Knock Intl

What airlines fly to Knock?

United Airlines, American Airlines and Lufthansa are the top three most popular airlines that fly to Knock from Illinois according to our data. United Airlines is the first choice among our users, with 77% of people opting to fly with this airline when traveling to Knock. Keep in mind that there are 3 different airlines that fly to Knock on a routine basis, so you have a few additional options to choose from.

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 are updated 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers 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 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 license 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.

Traveling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Sligo
Westport
Newport
Carrick-on-Shannon

Why use momondo?

Why should I use momondo to find a flight deal from Illinois 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 Illinois to Knock for you.

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

Yes. momondo enables you to select and highlight flights to Knock from Illinois with this policy.

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

momondo provides multiple filters to help you find the best flight to Knock from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Illinois 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.

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