$66 Cheap Flights from London (LHR) to Knock (NOC)

View $66 flight on Wed, Sep 10, 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Knock (NOC-Ireland West)

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Cheap Flights from London to Knock (LHR-NOC)

Prices were available within the past 7 days and start at $66 for one-way flights and $135 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Thu, Sep 11 - Thu, Sep 18
LHR
London
NOC
Knock
$135 Roundtrip, found 1 day ago
$135
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Thu, Sep 11 from London to Knock, returning Thu, Sep 18, priced at $135 found 1 day ago
Aer Lingus
Mon, Sep 15 - Wed, Sep 17
LHR
London
NOC
Knock
$135 Roundtrip, found 6 days ago
$135
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Mon, Sep 15 from London to Knock, returning Wed, Sep 17, priced at $135 found 6 days ago
Aer Lingus
Sat, Aug 30 - Tue, Sep 2
LHR
London
NOC
Knock
$154 Roundtrip, found 15 hours ago
$154
Roundtrip
found 15 hours ago
Select Aer Lingus flight, departing Sat, Aug 30 from London to Knock, returning Tue, Sep 2, priced at $154 found 15 hours ago
Aer Lingus
Sun, Sep 14 - Sun, Sep 21
LHR
London
NOC
Knock
$156 Roundtrip, found 6 days ago
$156
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Sun, Sep 14 from London to Knock, returning Sun, Sep 21, priced at $156 found 6 days ago
Aer Lingus
Wed, Sep 17 - Sun, Sep 21
LHR
London
NOC
Knock
$168 Roundtrip, found 1 day ago
$168
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Wed, Sep 17 from London to Knock, returning Sun, Sep 21, priced at $168 found 1 day ago
Aer Lingus
Fri, Nov 14 - Mon, Nov 17
LHR
London
NOC
Knock
$173 Roundtrip, found 4 days ago
$173
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Fri, Nov 14 from London to Knock, returning Mon, Nov 17, priced at $173 found 4 days ago
Aer Lingus
Fri, Nov 28 - Sun, Nov 30
LHR
London
NOC
Knock
$174 Roundtrip, found 20 hours ago
$174
Roundtrip
found 20 hours ago
Select Aer Lingus flight, departing Fri, Nov 28 from London to Knock, returning Sun, Nov 30, priced at $174 found 20 hours ago
Aer Lingus
Fri, Mar 13 - Mon, Mar 16
LHR
London
NOC
Knock
$182 Roundtrip, found 4 days ago
$182
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Fri, Mar 13 from London to Knock, returning Mon, Mar 16, priced at $182 found 4 days ago
Aer Lingus
Tue, Aug 12 - Thu, Aug 14
LHR
London
NOC
Knock
$187 Roundtrip, found 6 hours ago
$187
Roundtrip
found 6 hours ago
Select Aer Lingus flight, departing Tue, Aug 12 from London to Knock, returning Thu, Aug 14, priced at $187 found 6 hours ago
British Airways
Sat, Aug 30 - Tue, Sep 2
LHR
London
NOC
Knock
$226 Roundtrip, found 15 hours ago
$226
Roundtrip
found 15 hours ago
Select British Airways flight, departing Sat, Aug 30 from London to Knock, returning Tue, Sep 2, priced at $226 found 15 hours ago
Flights from London (LHR) to Knock (NOC)
Origin airport
Heathrow
Destination airport
Ireland West
Airlines serving
Aer Lingus, British Airways
Roundtrip price
$134
Distance
388 mi
Average flight time
1 hour 30 mins

London to Knock Flights

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

 

The best time to book a flight from London to Knock

Sunday is one of the best days to book for cheap flights from London 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 London 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 London to Knock in 2025. You can also book with separate airlines for your outbound and return journeys, from $66 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 London 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 London 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 Heathrow Airport (LHR) to Ireland West Airport (NOC) cost?
Snag cheap return fares starting at $134 from Heathrow Airport (LHR) to Ireland West Airport (NOC). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Aer Lingus flight leaving LHR on August 19 2025 and touching down at NOC. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from LHR to NOC?
The cheapest flights from LHR 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.
Which airlines fly direct from Heathrow Airport (LHR) to Ireland West Airport (NOC)?
You can travel nonstop from Heathrow Airport (LHR) to Ireland West Airport (NOC) on an Aer Lingus flight.
What is the cheapest airline that flies from LHR to NOC?
Right now, the cheapest airline operating one-way flights from LHR to NOC is Aer Lingus. You can take off on this route from $66. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LHR on September 18 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Heathrow Airport (LHR) to Ireland West Airport (NOC)?
On average, just 1 nonstop flight departs daily from Heathrow Airport (LHR) to Ireland West Airport (NOC). Want additional options? Use Expedia's filter tool to discover flights with layovers and squeeze in a visit to another city along the way.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Ireland West Airport (NOC)?
More people fly between LHR and NOC at 11 AM than at any other point in the day. Prefer a quieter experience? Pick a flight outside the busiest times and you could save on your ticket as well.
What day of the week has the most flights from LHR to NOC?
If you fly on a Thursday, you'll get the biggest range of options for flights from Heathrow Airport (LHR) to Ireland West Airport (NOC).
What is the earliest flight from Heathrow Airport (LHR) to Ireland West Airport (NOC)?
Heathrow Airport (LHR)'s first flight to Ireland West Airport (NOC) is at approximately 11:00AM UTC+0. With a total travel time of 1h 30m, you'll arrive at around 12:30PM UTC+0.
How long does it take to fly from Heathrow Airport (LHR) to Ireland West Airport (NOC)?
It takes around 1 hour and 30 minutes to fly the 390 mi from LHR to NOC.
What is the best time to fly from Heathrow Airport (LHR) to Ireland West Airport (NOC)?
Choose a flight from Heathrow Airport (LHR) to Ireland West Airport (NOC) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this 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.
What airports do you fly into for Knock from Heathrow Airport (LHR)?
Ireland West Airport (NOC) is the only airport in Knock with direct flights from Heathrow Airport (LHR). Explore your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Ireland West Airport (NOC) last-minute?
Holding off until right before your break to book a ticket from LHR to NOC often results in higher prices. While you may come across some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open for a better chance of scoring a bargain.
Is it cheaper to book a LHR to NOC flight and hotel package?
Compared with arranging hotels and flights separately, booking a LHR to NOC flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the stress out of travel planning. Just pick your flights and select from our wide range of stays, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Ireland West Airport (NOC)?
Typically, you're able to cancel or reschedule your LHR to NOC flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you want more information, go to our Customer Service portal.

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*Available to One Key members.