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Cheap flights from London Heathrow Airport to Knock from £59

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 28/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — NOC
15 Feb — 22 Feb1
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 Monday and return on a Thursday

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 16 January 2026.

Round-trip from

£104

One-way from

£59

Popular in

August

Cheapest in

February

Average price

£101

Good round-trip deal

£130 or less

Good one-way deal

£48 or less
Aer Lingus
  • Aer Lingus
  • 12/2-26/2
  • Nonstop
  • 3h 00m total
  • London to Knock
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Aer Lingus
  • Aer Lingus
  • 28/2
  • Nonstop
  • 1h 30m total
  • London to Knock
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from London Heathrow to Knock Intl.
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Price to beat on a one-way flight from London Heathrow to Knock Intl.
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Find flight deals from Heathrow to Knock

Enter your travel dates to find the best prices.

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 16 January 2026.

Thu 22/110:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Mon 26/113:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 13/1£98
Tue 10/210:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Tue 17/213:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 13/1£101
Thu 12/210:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Thu 26/213:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 15/1£104
Fri 27/210:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Fri 6/313:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 13/1£105
Sat 28/210:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Sun 1/313:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 13/1£106
Fri 27/210:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Sun 1/313:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 13/1£107
Wed 14/110:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Wed 21/113:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 13/1£107
Thu 29/110:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Sat 31/113:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 12/1£108
Sun 26/411:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Wed 29/413:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 13/1£109
Wed 28/110:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Sat 31/113:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 12/1£110
Tue 21/411:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Sat 25/413:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 14/1£111
Fri 13/210:55
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Fri 27/213:00
NOC
-
LHR
Nonstop1h 30m
Aer Lingus
Deal found 15/1£112

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 16 January 2026.
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 27/2

10:55-12:25

Nonstop1h 30m

Knock Intl

Fri 6/3

13:00-14:30

Nonstop1h 30m

£105

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sat 28/2

10:55-12:25

Nonstop1h 30m

Knock Intl

Sat 7/3

13:00-14:30

Nonstop1h 30m

£106

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 18/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Fri 22/5

13:05-14:30

Nonstop1h 25m

£106

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 26/2

10:55-12:25

Nonstop1h 30m

Knock Intl

Sun 1/3

13:00-14:30

Nonstop1h 30m

£107

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 18/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 21/5

13:05-14:30

Nonstop1h 25m

£109

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 18/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 20/5

13:05-14:30

Nonstop1h 25m

£109

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 26/2

10:55-12:25

Nonstop1h 30m

Knock Intl

Sat 28/2

13:00-14:30

Nonstop1h 30m

£109

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 26/4

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 29/4

13:05-14:30

Nonstop1h 25m

£109

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Wed 28/1

10:55-12:25

Nonstop1h 30m

Knock Intl

Sat 31/1

13:00-14:30

Nonstop1h 30m

£110

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Fri 13/2

10:55-12:25

Nonstop1h 30m

Knock Intl

Sat 21/2

13:00-14:30

Nonstop1h 30m

£113

Flights are sorted by cheapest return flights first.

Deals found on 14/1

Showing 1-10 of 23 results
1
2
3

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 9 January 2026.

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 £102). 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 16 January 2026.

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 16 January 2026.
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
1,435 reviews
Check prices

Comfort

7.1

Overall

7.2

Food

6.6

Boarding

7.4

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
4.0
Okay

Catherine,Dec 2025

AGP - DUB

Flight out to Malaga was terrific on A330 but flight back on A320 no where as good. Seat was uncomfortable, sweet wrappers & toilet paper on the floor at my seat. Rubbish in holder of seat in front. All unpleasant. Flight itself was fine & crew otherwise very good.
Aer Lingus
7.2
Good
1,435 reviews
Aer Lingus
7.2
Good
1,435 reviews
Check prices

Comfort

7.1

Overall

7.2

Food

6.6

Boarding

7.4

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
4.0
Okay

Catherine,Dec 2025

AGP - DUB

Flight out to Malaga was terrific on A330 but flight back on A320 no where as good. Seat was uncomfortable, sweet wrappers & toilet paper on the floor at my seat. Rubbish in holder of seat in front. All unpleasant. Flight itself was fine & crew otherwise very good.

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 2 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 (72%), Aer Lingus (72%), British Airways( 72%).

  • 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 £106, our data indicates the cheapest price to be £47. The most popular route (London Heathrow - Knock Intl), is priced around £104.

  • 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 £102). 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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£79Average£139FlexibilityNo 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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Why should you use Cheapflights to find cheap flight tickets from Heathrow to Knock?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Knock for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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?

Of course! You can now track prices for flights from Heathrow to Knock and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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