$524 Cheap Flights from Chicago (ORD) to Knock (NOC)

View $524 flight on Sat, Apr 11, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Knock (NOC-Ireland West)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Chicago to Knock (ORD-NOC)

Prices were available within the past 7 days and start at $524 for one-way flights and $747 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Apr 22 - Wed, Apr 29
ORD
Chicago
NOC
Knock
$747 Roundtrip, found 23 hours ago
$747
Roundtrip
found 23 hours ago
Select Air Canada flight, departing Wed, Apr 22 from Chicago to Knock, returning Wed, Apr 29, priced at $747 found 23 hours ago
Air Canada
Wed, Apr 22 - Wed, Apr 29
ORD
Chicago
NOC
Knock
$750 Roundtrip, found 23 hours ago
$750
Roundtrip
found 23 hours ago
Select Air Canada flight, departing Wed, Apr 22 from Chicago to Knock, returning Wed, Apr 29, priced at $750 found 23 hours ago
Air Canada
Sun, Nov 15 - Sun, Nov 22
ORD
Chicago
NOC
Knock
$751 Roundtrip, found 5 days ago
$751
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sun, Nov 15 from Chicago to Knock, returning Sun, Nov 22, priced at $751 found 5 days ago
Air Canada
Wed, Apr 22 - Wed, Apr 29
ORD
Chicago
NOC
Knock
$753 Roundtrip, found 23 hours ago
$753
Roundtrip
found 23 hours ago
Select Air Canada flight, departing Wed, Apr 22 from Chicago to Knock, returning Wed, Apr 29, priced at $753 found 23 hours ago
Air Canada
Sun, Nov 15 - Sun, Nov 22
ORD
Chicago
NOC
Knock
$754 Roundtrip, found 5 days ago
$754
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sun, Nov 15 from Chicago to Knock, returning Sun, Nov 22, priced at $754 found 5 days ago
Air Canada
Wed, Apr 22 - Wed, Apr 29
ORD
Chicago
NOC
Knock
$758 Roundtrip, found 23 hours ago
$758
Roundtrip
found 23 hours ago
Select Air Canada flight, departing Wed, Apr 22 from Chicago to Knock, returning Wed, Apr 29, priced at $758 found 23 hours ago
United
Sun, Sep 20 - Mon, Sep 28
ORD
Chicago
NOC
Knock
$789 Roundtrip, found 2 days ago
$789
Roundtrip
found 2 days ago
Select United flight, departing Sun, Sep 20 from Chicago to Knock, returning Mon, Sep 28, priced at $789 found 2 days ago
British Airways
Wed, Apr 22 - Wed, Apr 29
ORD
Chicago
NOC
Knock
$818 Roundtrip, found 23 hours ago
$818
Roundtrip
found 23 hours ago
Select British Airways flight, departing Wed, Apr 22 from Chicago to Knock, returning Wed, Apr 29, priced at $818 found 23 hours ago
Iberia
Wed, Apr 22 - Wed, Apr 29
ORD
Chicago
NOC
Knock
$832 Roundtrip, found 23 hours ago
$832
Roundtrip
found 23 hours ago
Select Iberia flight, departing Wed, Apr 22 from Chicago to Knock, returning Wed, Apr 29, priced at $832 found 23 hours ago
Finnair
Wed, Apr 22 - Wed, Apr 29
ORD
Chicago
NOC
Knock
$838 Roundtrip, found 23 hours ago
$838
Roundtrip
found 23 hours ago
Select Finnair flight, departing Wed, Apr 22 from Chicago to Knock, returning Wed, Apr 29, priced at $838 found 23 hours ago

The Annual Vacation Sale

Members save up to 40% on hotels and homes. Plan this year’s big trip and save.
Book now

Alternative airports near Knock

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ireland West NOC. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $1,775
NOC
Ireland West
CheapestClosest
Average driving time to city center14 min
Flights from $1,775

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC) cost?
Secure a cheap one-way flight from $524 or cheap return flight from $747 from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC)?
The cheapest month to fly from ORD to NOC is April, when there's less demand. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC)?
To find the cheapest airline that'll fly you from ORD to NOC, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC)?
There are no daily direct flights departing from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from ORD to NOC?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC)?
Book a flight from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC) last-minute?
Last-minute fares from ORD to NOC are usually more expensive. For the lowest prices, start looking for flights well ahead of time. That said, if your travel plans are flexible, it's possible to score a cheap fare right before your journey.
Is it cheaper to book an ORD to NOC flight and hotel package?
You can save money by booking an ORD to NOC flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your preferred flights and accommodations, you can add extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Ireland West Airport (NOC)?
Typically, it's possible to reschedule or cancel your ORD to NOC flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Ireland West
Airlines serving
Aer Lingus, British Airways
Roundtrip price
$746
Distance
3553 mi

Book with confidence

Chicago to Knock Flights

The cheapest times to fly from Chicago to Knock

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Knock are during the month of April. You can find some of the cheapest flights from Chicago to Knock with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Knock

Sunday is one of the best days to book for cheap flights from Chicago to Knock: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Knock

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Knock in 2026. You can also book with separate airlines for your outbound and return journeys, from $524 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Knock flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Knock airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chicago to Knock Flights

*Flight schedules are subject to change.

Explore a world of travel with Expedia

*Available to One Key members.