£47 Cheap Flights from London Heathrow Airport to Knock in 2026/27 | momondo

Sign in

English

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London Heathrow Airport to Knock

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£89Aer Lingus

Thu, 3 Dec - Mon, 7 Dec

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£89Aer Lingus

Thu, 10 Dec - Mon, 14 Dec

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£90Aer Lingus

Thu, 10 Dec - Mon, 14 Dec

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£92Aer Lingus

Tue, 8 Dec - Sat, 12 Dec

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£92Aer Lingus

Tue, 1 Dec - Wed, 9 Dec

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£93Aer Lingus

Thu, 10 Dec - Mon, 14 Dec

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£94Aer Lingus

Thu, 10 Dec - Mon, 14 Dec

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£94Aer Lingus

Fri, 15 Jan - Sun, 17 Jan

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£118Multiple Airlines

Thu, 10 Dec - Mon, 14 Dec

10:55 - 12:30LHR London Heathrow-NOC Knock Intl

1h 35mdirect

13:05 - 14:30NOC Knock Intl-LHR London Heathrow

1h 25mdirect

£127Multiple Airlines

Fri, 27 Nov - Sun, 29 Nov

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Search flight deals

Aer Lingus flights from London Heathrow Airport to Knock

Our best Aer Lingus deals on London Heathrow Airport to Knock flight tickets

Aer Lingus

3 Dec

LHR10:55London Heathrow

1h 35m

NOC12:30Knock Intl

7 Dec

NOC13:05Knock Intl

1h 25m

LHR14:30London Heathrow

£89

Aer Lingus

10 Dec

LHR10:55London Heathrow

1h 35m

NOC12:30Knock Intl

14 Dec

NOC13:05Knock Intl

1h 25m

LHR14:30London Heathrow

£90

Aer Lingus

1 Dec

LHR10:55London Heathrow

1h 35m

NOC12:30Knock Intl

9 Dec

NOC13:05Knock Intl

1h 25m

LHR14:30London Heathrow

£92

momondo Fare Finder

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 London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Thu 3/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Mon 7/12

13:05-14:30

Nonstop1h 25m

£89

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Thu 10/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Mon 14/12

13:05-14:30

Nonstop1h 25m

£89

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Thu 10/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Mon 14/12

13:05-14:30

Nonstop1h 25m

£90

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Tue 8/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Sat 12/12

13:05-14:30

Nonstop1h 25m

£92

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Tue 1/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Wed 9/12

13:05-14:30

Nonstop1h 25m

£92

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Thu 10/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Mon 14/12

13:05-14:30

Nonstop1h 25m

£93

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Thu 10/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Mon 14/12

13:05-14:30

Nonstop1h 25m

£94

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Fri 15/1

10:55-12:30

Nonstop1h 35m

Knock Intl

Sun 17/1

13:05-14:30

Nonstop1h 25m

£94

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Thu 10/12

10:55-12:30

Nonstop1h 35m

Knock Intl

Mon 14/12

13:05-14:30

Nonstop1h 25m

£118

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Fri 27/11

10:55-12:30

Nonstop1h 35m

Knock Intl

Sun 29/11

13:05-14:30

Nonstop1h 25m

£127

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

1

2

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

Prices

Airlines

Other information

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

Prices are currently low for flights on this route.

Typical prices usually range from £97 to £177.
The lowest price recently found on this route was £89.

What is the cheapest month to fly to Knock?

In general, January is the cheapest month to fly from London Heathrow Airport to Knock. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £102. The month of February is another great option to travel to Knock, with average flight prices from London Heathrow Airport averaging around £121.

What is the cheapest day to depart on your flight to Knock?

Our data shows that Tuesday is the least expensive day to fly to Knock. Tickets to fly out on this day can be as low as £54. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Knock for around £114.

What is the cheapest time of day to depart on your flight to Knock?

Flying to Knock from London Heathrow Airport at midday is the least expensive time of day to depart. momondo users have found prices as low as £60 when looking at flights departing at midday. In the morning is when there is more demand to fly to Knock, so prices are often more expensive at around £106 per ticket.

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 from London Heathrow Airport 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 £145 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 £118 on momondo.

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

There is only 1 cabin class available to choose from on London Heathrow Airport to Knock 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 October 2026, prices for London Heathrow Airport to Knock flights are approximately 16% 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

Best price found	£47
Fastest flight time	1h 30m
Direct flights	Every day
Airports in Knock	1 airport

The best one-way flight to Knock from London Heathrow Airport in the past 72 hours is £47. The best return flight deal from London Heathrow Airport to Knock found on momondo in the last 72 hours is £89.

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 388.9 mi between London Heathrow and Knock Intl. In terms of flight time, this usually takes a little over 1h 30m.
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 were last updated today.
How many operators does momondo search for flights from London Heathrow Airport to Knock Intl Airport?
The number of operators available for flights from London Heathrow Airport to Knock Intl Airport is 1 as of October 2026.
How old do you have to be to fly from London Heathrow Airport to Knock Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Knock Intl Airport.
What documentation or ID do you need to fly to Knock Intl Airport?
The required travel and health documents for your Knock Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knock Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to Knock?
Based on momondo bookings for flights between London Heathrow Airport and Knock, the leading plane model is Airbus A320neo, making up 34.66% of the total bookings. Other popular models include Airbus A321-100/200 with 30.21%, Boeing 737-800 Passenger/BBJ2 (winglets) with 19.91%, and Boeing 737 MAX 8 with 12.88%.
What is the most popular airline from London Heathrow Airport to Knock?
Based on momondo bookings for flights between London Heathrow Airport and Knock, the leading airline is Aer Lingus, making up 100% of the total bookings.

Best airlines flying from London Heathrow Airport to Knock

Compare and see reviews for airlines that fly from London Heathrow Airport to Knock with momondo

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom £90	Free Cancellation	Rating 7.3 1,868 reviews		Search Aer Lingus flights

Aer Lingus Flights From London Heathrow Airport to Knock
Aer Lingus flies from London Heathrow Airport to Knock around 7 times per week, with 1,868 momondo users rating the airline 7.3/10. The cheapest Aer Lingus deal from London Heathrow Airport to Knock in the last 72 hours was £90 (round-trip), much lower than the average airfare cost of £145 for Aer Lingus flights on this route.

Sligo

Westport

Belmullet

Carrick-on-Shannon

Newport

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Knock from London.

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

Yes. All flights to Knock from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between London and Knock by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Knock, momondo offers a useful price alert feature which will track prices for flights to Knock from London and alert you when they change.

An easier way to manage your Knock trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sun 29/11

Sun 6/12

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland

Nearby airports

Airlines

Cabin classes

Other Ireland destinations

Other flights from London Heathrow Airport

Complete your trip

Feeling lucky

Airports servicing Ireland

Donegal Airport

Shannon Airport