$873 Cheap Flights from Atlanta (ATL) to Knock (NOC)

View $873 flight on Mon, Sep 22, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Atlanta to Knock (ATL-NOC)

Prices were available within the past 7 days and start at $873 for one-way flights and $923 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Jun 11 - Sat, Aug 16
ATL
Atlanta
NOC
Knock
$923 Roundtrip, found 6 days ago
$923
Roundtrip
found 6 days ago
Select British Airways flight, departing Wed, Jun 11 from Atlanta to Knock, returning Sat, Aug 16, priced at $923 found 6 days ago
American Airlines
Wed, Jun 11 - Sat, Aug 16
ATL
Atlanta
NOC
Knock
$926 Roundtrip, found 6 days ago
$926
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jun 11 from Atlanta to Knock, returning Sat, Aug 16, priced at $926 found 6 days ago
American Airlines
Wed, Jun 11 - Sat, Aug 16
ATL
Atlanta
NOC
Knock
$928 Roundtrip, found 6 days ago
$928
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jun 11 from Atlanta to Knock, returning Sat, Aug 16, priced at $928 found 6 days ago
American Airlines
Wed, Jun 11 - Sat, Aug 16
ATL
Atlanta
NOC
Knock
$936 Roundtrip, found 6 days ago
$936
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jun 11 from Atlanta to Knock, returning Sat, Aug 16, priced at $936 found 6 days ago
Aer Lingus
Mon, Aug 11 - Thu, Aug 28
ATL
Atlanta
NOC
Knock
$1,149 Roundtrip, found 3 days ago
$1,149
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Mon, Aug 11 from Atlanta to Knock, returning Thu, Aug 28, priced at $1,149 found 3 days ago
Aer Lingus
Thu, Aug 14 - Thu, Aug 28
ATL
Atlanta
NOC
Knock
$1,199 Roundtrip, found 3 days ago
$1,199
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Aug 14 from Atlanta to Knock, returning Thu, Aug 28, priced at $1,199 found 3 days ago
Aer Lingus
Mon, Aug 11 - Wed, Aug 27
ATL
Atlanta
NOC
Knock
$1,211 Roundtrip, found 3 days ago
$1,211
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Mon, Aug 11 from Atlanta to Knock, returning Wed, Aug 27, priced at $1,211 found 3 days ago
Aer Lingus
Mon, Aug 11 - Fri, Aug 22
ATL
Atlanta
NOC
Knock
$1,212 Roundtrip, found 3 days ago
$1,212
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Mon, Aug 11 from Atlanta to Knock, returning Fri, Aug 22, priced at $1,212 found 3 days ago
United
Thu, Aug 14 - Mon, Aug 25
ATL
Atlanta
NOC
Knock
$1,309 Roundtrip, found 3 days ago
$1,309
Roundtrip
found 3 days ago
Select United flight, departing Thu, Aug 14 from Atlanta to Knock, returning Mon, Aug 25, priced at $1,309 found 3 days ago
Air Canada
Thu, Aug 14 - Mon, Aug 25
ATL
Atlanta
NOC
Knock
$1,336 Roundtrip, found 3 days ago
$1,336
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Aug 14 from Atlanta to Knock, returning Mon, Aug 25, priced at $1,336 found 3 days ago
Flights from Atlanta (ATL) to Knock (NOC)
Origin airport
Hartsfield-Jackson Atlanta Intl.
Destination airport
Ireland West
Airlines serving
Aer Lingus, British Airways
Roundtrip price
$923
Distance
3820 mi

Atlanta to Knock Flights

The cheapest times to fly from Atlanta 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 Atlanta to Knock are during the month of June. You can find some of the cheapest flights from Atlanta to Knock with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Atlanta to Knock

Sunday is one of the best days to book for cheap flights from Atlanta 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 Atlanta 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 Atlanta to Knock in 2025. You can also book with separate airlines for your outbound and return journeys, from $873 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 Atlanta 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 Atlanta 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.

 

Frequently asked questions

How much does a flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ireland West Airport (NOC) cost?
Discover the latest flight deals from ATL to NOC by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ATL to NOC?
The cheapest flights from ATL to NOC are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ATL to NOC?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from ATL to NOC. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ireland West Airport (NOC)?
You’ll need to book a flight with a layover if you’re traveling from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ireland West Airport (NOC). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from ATL to NOC?
You’ll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ireland West Airport (NOC)?
To avoid potential delays on the Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ireland West Airport (NOC) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**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 Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ireland West Airport (NOC) last-minute?
Holding off until just before your departure to book a flight from ATL to NOC generally means paying more. While you may come across some last-minute deals, they aren’t always guaranteed. Keep your travel schedule open to maximize your chances of scoring a bargain.
Is it cheaper to book an ATL to NOC flight and hotel package?
Compared with arranging flights and hotels separately, booking an ATL to NOC flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place will take the hassle out of travel planning. Just pick your flights and choose from our extensive range of stays, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Ireland West Airport (NOC)?
If you reserved your ATL to NOC flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.