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Cheap flights from London Heathrow Airport to Knock from £46

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — NOC
19 Aug — 26 Aug1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Knock Intl are usually found in February or January, booked 71 days in advance, depart on a Tuesday or Monday and return on a Wednesday

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 14 August 2025.

Round-trip from

£80

One-way from

£46

Popular in

August

Cheapest in

February

Average price

£182

Good round-trip deal

£130 or less

Good one-way deal

£96 or less
Aer Lingus
  • Aer Lingus
  • 17/9-23/9
  • Nonstop
  • 2h 55m total
  • London to Knock
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Aer Lingus
  • Aer Lingus
  • 8/10
  • Nonstop
  • 1h 30m total
  • London to Knock
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£14 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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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

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 14 August 2025.

Wed 17/911:05LHR - NOC
Nonstop1h 30mAer Lingus
Tue 23/913:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 10/8£80
Sun 14/911:05LHR - NOC
Nonstop1h 30mAer Lingus
Wed 24/913:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 13/8£87
Mon 22/911:05LHR - NOC
Nonstop1h 30mAer Lingus
Thu 25/913:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 12/8£91
Thu 2/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Sun 5/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 11/8£93
Sat 4/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Mon 6/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 12/8£94
Sat 30/811:05LHR - NOC
Nonstop1h 30mAer Lingus
Wed 8/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 13/8£96
Sun 21/911:05LHR - NOC
Nonstop1h 30mAer Lingus
Thu 25/913:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 13/8£98
Sat 30/811:05LHR - NOC
Nonstop1h 30mAer Lingus
Sat 4/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 13/8£100
Wed 17/911:05LHR - NOC
Nonstop1h 30mAer Lingus
Mon 22/913:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 12/8£101
Sat 6/911:05LHR - NOC
Nonstop1h 30mAer Lingus
Thu 11/913:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 11/8£108

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 14 August 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

Wed 17/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Tue 23/9

13:05-14:30

Nonstop1h 25m

£85

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 14/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 24/9

13:05-14:30

Nonstop1h 25m

£87

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 16/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Sun 19/10

13:05-14:30

Nonstop1h 25m

£91

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 22/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 25/9

13:05-14:30

Nonstop1h 25m

£91

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 2/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Sun 5/10

13:05-14:30

Nonstop1h 25m

£93

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 15/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Tue 16/9

13:05-14:30

Nonstop1h 25m

£94

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sat 4/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 6/10

13:05-14:30

Nonstop1h 25m

£94

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sat 30/8

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 8/10

13:05-14:30

Nonstop1h 25m

£96

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 21/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 25/9

13:05-14:30

Nonstop1h 25m

£98

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Tue 7/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Fri 10/10

13:05-14:30

Nonstop1h 25m

£98

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 23 results
1
2
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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 8 August 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 71 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, April is the cheapest month in which you can book a flight from London Heathrow Airport to Knock (average of £54). Flying from London Heathrow Airport to Knock in August is currently the most expensive (average of £109). 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 14 August 2025.

When flying from London Heathrow Airport to Knock, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 61% versus a flight in the morning.

Weekly flight availability from London Heathrow Airport to Knock

Explore weekly flight availability from Heathrow to Knock. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 14 August 2025.

The most flights from LHR to NOC are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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 14 August 2025.
Check out reviews from past customers who have flown with Aer Lingus and British Airways 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
7.1
Good
1,212 reviews
Check prices

Boarding

7.3

Crew

8.0

Overall

7.1

Comfort

7.1

Entertainment

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
Aer Lingus
7.1
Good
1,212 reviews
Aer Lingus
7.1
Good
1,212 reviews
Check prices

Boarding

7.3

Crew

8.0

Overall

7.1

Comfort

7.1

Entertainment

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
British Airways
6.7
Okay
7,266 reviews
Aer Lingus
7.1
Good
1,212 reviews
Check prices

Boarding

7.3

Crew

8.0

Overall

7.1

Comfort

7.1

Entertainment

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.

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 2 different airlines.

  • 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 £80. 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 (92%), Aer Lingus (92%), British Airways( 92%).

  • 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 £139, our data indicates the cheapest price to be £66. The most popular route (London Heathrow - Knock Intl), is priced around £85.

  • 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, April is the cheapest month in which you can book a flight from London Heathrow Airport to Knock (average of £54). Flying from London Heathrow Airport to Knock in August is currently the most expensive (average of £109). 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 2 airlines flying from Heathrow to Knock

Discover the top 2 airlines 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 14 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£77Average£141FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£96Average£144FlexibilityNo cancel feeOn-time70%
Search British Airways 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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