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Cheap flights from London Heathrow Airport to Knock from £60

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — NOC
1 Jan — 8 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Knock Intl are usually found in February or January, booked 50 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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Cheapest flights from Heathrow to Knock
Explore the most affordable flight options available from Heathrow to Knock. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 December 2025.

Wed 10/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Sat 13/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 29/11£116
Thu 11/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Mon 15/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 1/12£118
Sat 6/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Sat 13/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 29/11£122
Sat 13/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Mon 15/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 30/11£125
Mon 8/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Thu 11/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 30/11£130
Mon 8/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Tue 9/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 1/12£139
Fri 12/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Mon 15/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 30/11£145
Tue 2/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Thu 4/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 29/11£146
Mon 8/1210:55LHR - NOC
Nonstop1h 30mAer Lingus
Wed 10/1213:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 1/12£153

Cheap flight deals from Heathrow to Knock

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Knock (NOC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 December 2025.

Round-trip from

£107

One-way from

£60

Popular in

August

Cheapest in

February

Average price

£123

Good round-trip deal

£115 or less
Aer Lingus
  • Aer Lingus
  • 7/1-17/1
  • Nonstop
  • 3h 00m total
  • London to Knock
Search Deals
Aer Lingus
  • Aer Lingus
  • 18/1
  • Nonstop
  • 1h 30m total
  • London to Knock
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Knock Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 2 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Knock that are best for you.

Fly from

Heathrow

Fly to

Knock

Route

Depart

Return

Price

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Fri 16/1

10:55-12:25

Nonstop1h 30m

Knock Intl

Sun 18/1

13:00-14:30

Nonstop1h 30m

£108

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Fri 6/2

10:55-12:25

Nonstop1h 30m

Knock Intl

Sun 8/2

13:00-14:30

Nonstop1h 30m

£108

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 8/1

10:55-12:25

Nonstop1h 30m

Knock Intl

Sun 11/1

13:00-14:30

Nonstop1h 30m

£109

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Wed 11/3

10:55-12:25

Nonstop1h 30m

Knock Intl

Wed 18/3

13:00-14:30

Nonstop1h 30m

£111

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Tue 10/3

10:55-12:25

Nonstop1h 30m

Knock Intl

Mon 16/3

13:00-14:30

Nonstop1h 30m

£111

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 12/3

10:55-12:25

Nonstop1h 30m

Knock Intl

Mon 16/3

13:00-14:30

Nonstop1h 30m

£111

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 8/3

10:55-12:25

Nonstop1h 30m

Knock Intl

Mon 16/3

13:00-14:30

Nonstop1h 30m

£111

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 9/3

10:55-12:25

Nonstop1h 30m

Knock Intl

Wed 18/3

13:00-14:30

Nonstop1h 30m

£111

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 12/3

10:55-12:25

Nonstop1h 30m

Knock Intl

Fri 13/3

13:00-14:30

Nonstop1h 30m

£111

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 8/3

10:55-12:25

Nonstop1h 30m

Knock Intl

Wed 18/3

13:00-14:30

Nonstop1h 30m

£111

Flights are sorted by cheapest return flights first.

Deals found on 29/11

Showing 1-10 of 19 results
1
2

Best time to book a flight from Heathrow to Knock

Have a flexible travel schedule? Discover the best time to fly to Knock from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Knock

How far ahead should I book a flight from London Heathrow Airport to Knock?

Use this chart to determine the optimal time to book a return flight from Heathrow to Knock. Price data was last updated on 28 November 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Knock, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to Knock?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Knock (average of £33). Flying from London Heathrow Airport to Knock in August is currently the most expensive (average of £105). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to NOC?

Find hourly flight availability from Heathrow to Knock. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 December 2025.

When flying from London Heathrow Airport to Knock, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Knock

Get insights into the airlines that provide service to Knock. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knock. Reviews last updated 2 December 2025.
Check out reviews from past customers who have flown with Aer Lingus from London Heathrow Airport to Knock to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,384 reviews
Check prices

Boarding

7.4

Entertainment

6.9

Crew

8.0

Food

6.6

Comfort

7.1

Overall

7.2

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.
Aer Lingus
7.2
Good
1,384 reviews
Aer Lingus
7.2
Good
1,384 reviews
Check prices

Boarding

7.4

Entertainment

6.9

Crew

8.0

Food

6.6

Comfort

7.1

Overall

7.2

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Knock. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Knock from London Heathrow?

    Located just 9.2 mi from the city center, Knock Intl is the airport most travelers will use when flying to Knock from London Heathrow. Booking flights from London Heathrow to Knock Intl (NOC) should be relatively easy as there are 3 daily inbound flights from London Heathrow from 1 airline.

  • How long is the flight from London Heathrow Airport to Knock?

    Aer Lingus can get you from London Heathrow Airport to Knock in just under 1h 30m. Your travel time will be generally consistent. The distance between London Heathrow Airport and Knock is about 388 mi. All flights are typically direct.

  • What is the cheapest airline to fly from London Heathrow Airport to Knock round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Knock round-trip from £79. Users have found that Aer Lingus is 41% cheaper than the other options available to this destination.

  • What are the most reliable airlines from London Heathrow Airport to Knock?

    Before booking your flight to Knock from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Qatar Airways (75%), Aer Lingus (75%), British Airways( 75%).

  • What are the cheapest flights from London Heathrow Airport to Knock?

    Looking for the cheapest flight from London Heathrow Airport to Knock? While on average our users pay £149, our data indicates the cheapest price to be £98. The most popular route (London Heathrow - Knock Intl), is priced around £108.

  • Can I find deals for flights from Heathrow to Knock that include hotel bookings?

    Yes. In addition to deals on Heathrow to Knock flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Knock?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Knock.

  • Can I find deals for business class flights from Heathrow to Knock?

    Yes. Cheapflights offers flight deals from Heathrow to Knock by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Knock?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Knock (average of £33). Flying from London Heathrow Airport to Knock in August is currently the most expensive (average of £105). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Westport

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Alternative routes for Heathrow to Knock

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Heathrow to Knock

Discover the top airline that operate flights from Heathrow to Knock. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£79Average£142FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Knock?

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Can Cheapflights find flights from Heathrow to Knock with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Knock, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Knock become cheaper?

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