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Cheap flights from London Heathrow Airport to Knock from €58

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Knock departing on 21/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from London Heathrow Airport to Knock

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€113Aer Lingus
Wed, 6 May - Fri, 15 May
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€116Aer Lingus
Tue, 12 May - Wed, 13 May
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€128Aer Lingus
Sat, 2 May - Wed, 20 May
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€131Aer Lingus
Thu, 7 May - Mon, 11 May
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€132Aer Lingus
Thu, 7 May - Mon, 11 May
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€133Aer Lingus
Tue, 21 Apr - Fri, 24 Apr
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€133Aer Lingus
Tue, 5 May - Fri, 8 May
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€134Aer Lingus
Sat, 2 May - Sat, 9 May
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€137Aer Lingus
Thu, 14 May - Thu, 21 May
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
€139Aer Lingus
Sun, 17 May - Sun, 24 May

Aer Lingus flights from London Heathrow Airport to Knock

Our best Aer Lingus deals on London Heathrow Airport to Knock flight tickets
Aer Lingus
6 May
LHR11:05London Heathrow
1h 30m
NOC12:35Knock Intl
15 May
NOC13:05Knock Intl
1h 25m
LHR14:30London Heathrow
€113
Aer Lingus
12 May
LHR11:05London Heathrow
1h 30m
NOC12:35Knock Intl
13 May
NOC13:05Knock Intl
1h 25m
LHR14:30London Heathrow
€116
Aer Lingus
2 May
LHR11:05London Heathrow
1h 30m
NOC12:35Knock Intl
20 May
NOC13:05Knock Intl
1h 25m
LHR14:30London Heathrow
€128

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 13,528 searches. Data last updated 3 April 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

Wed 6/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Fri 15/5

13:05-14:30

Nonstop1h 25m

€113

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Tue 12/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 13/5

13:05-14:30

Nonstop1h 25m

€116

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sat 2/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 20/5

13:05-14:30

Nonstop1h 25m

€128

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 7/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 11/5

13:05-14:30

Nonstop1h 25m

€131

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 7/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Mon 11/5

13:05-14:30

Nonstop1h 25m

€132

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Tue 21/4

11:05-12:35

Nonstop1h 30m

Knock Intl

Fri 24/4

13:05-14:30

Nonstop1h 25m

€133

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Tue 5/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Fri 8/5

13:05-14:30

Nonstop1h 25m

€133

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sat 2/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Sat 9/5

13:05-14:30

Nonstop1h 25m

€134

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Thu 14/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 21/5

13:05-14:30

Nonstop1h 25m

€137

LondonKnock

LHR - NOC

LHRNOC

London Heathrow

Sun 17/5

11:05-12:35

Nonstop1h 30m

Knock Intl

Sun 24/5

13:05-14:30

Nonstop1h 25m

€139

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Knock from

How to get the cheapest flight ticket from London Heathrow Airport to Knock

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and Knock?

What is the cheapest month to fly to Knock?

If you don’t want to visit Knock in January, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of €140.

What is the cheapest London Heathrow to Knock Intl flight route?

Fly from London Heathrow to Knock Intl for the best London Heathrow - Knock Intl flight prices

How far in advance should I book a flight to Knock?

You are more likely to see cheaper flights to Knock from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Knock for around €159 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knock from London Heathrow Airport for as low as €114 on momondo.

What cabin class options are available on London Heathrow to Knock Intl flights?

There is only 1 cabin class available to choose from on London Heathrow to Knock Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London Heathrow Airport to Knock flight prices changed over time?

As of April 2026, prices for London Heathrow Airport to Knock flights are approximately 225% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Knock (LHR to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Knock

Fastest flight time

1h 30m

Direct flights

Every day

Airports in Knock

1 airport
The fastest flight from London Heathrow Airport to Knock takes 1h 30m
Direct flights go from London Heathrow Airport to Knock every day.
There is 1 airport in Knock. From London Heathrow Airport there are direct flights to Knock Intl (NOC).
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Knock

  • How far is London Heathrow to Knock Intl by plane?

    There are 625.9 km between London Heathrow and Knock Intl. Flights usually cover this in 1h 30m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London Heathrow Airport to Knock Intl Airport?

    Prices for flights from London Heathrow Airport to Knock Intl Airport refresh daily.

  • How old do you have to be to fly from London Heathrow Airport to Knock Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Knock Intl Airport.

  • What documentation or ID do you need to fly to Knock Intl Airport?

    The travel and health documents required for your trip to Knock Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Knock Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from London Heathrow Airport to Knock?

Travelling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Westport
Sligo
Carrick-on-Shannon
Belmullet

Why use momondo?

Why should I use momondo to find a flight deal from London to Knock?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Knock . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Knock with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Knock flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Knock?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Knock from London.

I’m not ready to book a flight from London to Knock right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Knock now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Knock and let you know when they change.

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