Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Knock from £50

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — NOC
26 Oct — 2 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London Heathrow to Knock Intl are usually found in February or January, booked 3 days in advance, depart on a Wednesday or Tuesday 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 26 September 2025.

Round-trip from

£96

One-way from

£50

Popular in

December

Cheapest in

February

Average price

£147

Good round-trip deal

£102 or less

Good one-way deal

£54 or less
Aer Lingus
  • Aer Lingus
  • 13/10-16/10
  • Nonstop
  • 2h 55m total
  • London to Knock
Search Deals
Aer Lingus
  • Aer Lingus
  • 1/10
  • Nonstop
  • 1h 30m total
  • London to Knock
Search Deals
High demand for flights, 3% potential price rise
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 September 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Knock Intl.
Search Deals
Price to beat on a one-way flight from London Heathrow to Knock Intl.
Search Deals

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 26 September 2025.

Mon 13/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Thu 16/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 24/9£96
Thu 23/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Thu 30/1013:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 23/9£98
Wed 1/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Thu 2/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 25/9£99
Mon 6/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Wed 8/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 25/9£101
Wed 1/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Sat 4/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 24/9£103
Thu 23/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Sun 26/1013:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 23/9£106
Mon 10/1110:55LHR - NOC
Nonstop1h 30mAer Lingus
Thu 27/1113:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 23/9£108
Tue 21/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Sat 25/1013:05NOC - LHR
Nonstop1h 25mAer Lingus
Deal found 24/9£110
Thu 23/1011:05LHR - NOC
Nonstop1h 30mAer Lingus
Tue 28/1013:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 23/9£110
Fri 7/1110:55LHR - NOC
Nonstop1h 30mAer Lingus
Fri 14/1113:00NOC - LHR
Nonstop1h 30mAer Lingus
Deal found 23/9£114

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 26 September 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

Mon 20/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 22/10

13:05-14:30

Nonstop1h 25m

£96

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 23/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 30/10

13:00-14:30

Nonstop1h 30m

£98

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Tue 21/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Tue 28/10

13:00-14:30

Nonstop1h 30m

£101

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 6/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 8/10

13:05-14:30

Nonstop1h 25m

£101

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 23/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Sun 26/10

13:00-14:30

Nonstop1h 30m

£106

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 10/11

10:55-12:25

Nonstop1h 30m

Knock Intl

Thu 27/11

13:00-14:30

Nonstop1h 30m

£108

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Tue 21/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Sat 25/10

13:05-14:30

Nonstop1h 25m

£110

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 12/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Fri 17/10

13:05-14:30

Nonstop1h 25m

£117

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 12/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 16/10

13:05-14:30

Nonstop1h 25m

£117

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 9/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 16/10

13:05-14:30

Nonstop1h 25m

£122

Flights are sorted by cheapest return flights first.

Deals found on 25/9

Showing 1-10 of 21 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 19 September 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 3 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 26 September 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.

How much does it cost for a return flight from London Heathrow Airport to Knock?

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 26 September 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
7.2
Good
1,302 reviews
Check prices

Comfort

7.1

Boarding

7.3

Food

6.5

Overall

7.2

Crew

8.0

Entertainment

6.9

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
7.2
Good
1,302 reviews
Aer Lingus
7.2
Good
1,302 reviews
Check prices

Comfort

7.1

Boarding

7.3

Food

6.5

Overall

7.2

Crew

8.0

Entertainment

6.9

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
7,399 reviews
Aer Lingus
7.2
Good
1,302 reviews
Check prices

Comfort

7.1

Boarding

7.3

Food

6.5

Overall

7.2

Crew

8.0

Entertainment

6.9

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.

  • 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 are the cheapest airlines flying from London Heathrow Airport to Knock round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Knock round-trip from £78. Another airline that can offer you cheap pricing is British Airways. Users have found that Aer Lingus is 42% 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 (91%), Aer Lingus (91%), British Airways( 91%).

  • 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 £100, our data indicates the cheapest price to be £47. The most popular route (London Heathrow - Knock Intl), is priced around £96.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Knock

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Dublin flights
Stansted to Dublin flights
Luton to Dublin flights
Heathrow to Dublin flights
London City to Dublin flights
Southend to Dublin flights
Heathrow to Cork flights
Gatwick to Cork flights
London City to Cork flights
Heathrow to Shannon flights
Stansted to Cork flights
Gatwick to Shannon flights
Stansted to Shannon flights
Luton to Cork flights
Luton to Knock flights
Luton to Shannon flights
Southend to Cork flights
Stansted to Knock flights
Luton to Milltown (Kerry) flights
Heathrow to Milltown (Kerry) flights
Gatwick to Milltown (Kerry) flights
Stansted to Milltown (Kerry) flights
Gatwick to Knock flights
London City to Shannon flights
Southend to Shannon flights
London City to Donegal flights
Heathrow to Donegal flights
London City to Knock flights
Gatwick to Donegal flights
London City to Milltown (Kerry) flights
Stansted to Donegal flights
Luton to Donegal flights
Southend to Knock flights
Southend to Milltown (Kerry) flights
Southend to Donegal flights

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 26 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£78Average£143FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£97Average£117FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Heathrow to Knock via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.