Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Knock from £49

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — NOC
14 Aug — 21 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Knock Intl are usually found in September or January, booked 57 days in advance, depart on a Saturday or Sunday and return on a Thursday

Cheap 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 15 July 2026.

Sat 5/911:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Mon 7/913:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 11/7£79
Wed 9/911:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Fri 11/913:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 10/7£80
Mon 31/811:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Sat 5/913:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 12/7£81
Thu 3/911:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Mon 7/913:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 10/7£81
Thu 17/911:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Sun 20/913:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 13/7£82
Fri 11/911:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Sun 13/913:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 12/7£84
Tue 1/911:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Fri 4/913:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 13/7£84
Tue 18/811:05
LHR
-
NOC
Nonstop1h 30m
Aer Lingus
Fri 28/813:05
NOC
-
LHR
Nonstop1h 25m
Aer Lingus
Deal found 13/7£105

Find 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 15 July 2026.

Round-trip from

£79

One-way from

£49

Popular in

August

Cheapest in

September

Average price

£167

Good round-trip deal

£121 or less
Aer Lingus
  • Aer Lingus
  • 5/9-7/9
  • Nonstop
  • 2h 55m total
  • London to Knock
Search Deals
Aer Lingus
  • Aer Lingus
  • 28/9
  • Nonstop
  • 1h 30m total
  • London to Knock
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£8 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 July 2026
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 15 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sat 5/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 7/9

13:05-14:30

Nonstop1h 25m

£85

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Fri 4/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 7/9

13:05-14:30

Nonstop1h 25m

£108

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Fri 27/11

10:55-12:25

Nonstop1h 30m

Knock Intl

Sun 29/11

13:00-14:30

Nonstop1h 30m

£158

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Fri 7/8

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 13/8

13:05-14:30

Nonstop1h 25m

£164

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Fri 4/9

16:50-11:30

2 stops18h 40m

Knock Intl

Mon 7/9

13:05-14:30

Nonstop1h 25m

£178

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Wed 29/7

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 3/8

13:05-14:30

Nonstop1h 25m

£191

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 24/8

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 31/8

13:05-14:30

Nonstop1h 25m

£192

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Mon 7/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 14/9

13:05-14:30

Nonstop1h 25m

£192

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 3/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 7/9

18:45-10:20

3 stops15h 35m

£194

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Fri 18/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Sat 26/9

13:05-14:30

Nonstop1h 25m

£200

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 22 resultsSorted by cheapest first
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?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Knock, you should look to book at least 56 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Knock (average of £110). Flying from London Heathrow Airport to Knock in August is currently the most expensive (average of £175). 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 15 July 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.

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 15 July 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
7.3
Good
1,666 reviews
Check prices

Comfort

7.2

Overall

7.3

Entertainment

7.0

Food

6.6

Crew

8.1

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Aer Lingus
7.3
Good
1,666 reviews
Aer Lingus
7.3
Good
1,666 reviews
Check prices

Comfort

7.2

Overall

7.3

Entertainment

7.0

Food

6.6

Crew

8.1

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

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 £96. Users have found that Aer Lingus is 30% 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 (77%), Aer Lingus (77%), British Airways( 77%).

  • 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 £105. The most popular route (London Heathrow - Knock Intl), is priced around £82.

  • 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Knock (average of £110). Flying from London Heathrow Airport to Knock in August is currently the most expensive (average of £175). 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
Newport

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.

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 15 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£96Average£137FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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.