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Cheap flights from London Heathrow Airport to Knock from £42

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£70Aer Lingus
Fri, 9 Oct - Wed, 21 Oct
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£73Aer Lingus
Wed, 7 Oct - Sat, 17 Oct
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£77Aer Lingus
Sun, 4 Oct - Wed, 21 Oct
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£78Aer Lingus
Mon, 5 Oct - Tue, 13 Oct
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£78Aer Lingus
Tue, 29 Sep - Tue, 6 Oct
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£78Aer Lingus
Thu, 15 Oct - Thu, 22 Oct
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£78Aer Lingus
Fri, 16 Oct - Fri, 23 Oct
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£78Aer Lingus
Sun, 18 Oct - Fri, 23 Oct
Multiple Airlines Logo
20:50 - 15:15LHR  London Heathrow-NOC Knock Intl
18h 25m2 stops Barcelona-El Prat Nottingham East Midlands
Multiple Airlines Logo
13:00 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 30mdirect
£124Multiple Airlines
Tue, 27 Oct - Tue, 10 Nov
Multiple Airlines Logo
20:50 - 17:30LHR  London Heathrow-NOC Knock Intl
20h 40m2 stops Barcelona-El Prat Birmingham
Multiple Airlines Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
£128Multiple Airlines
Sun, 11 Oct - Tue, 13 Oct

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Aer Lingus flights from London Heathrow Airport to Knock

Our best Aer Lingus deals on London Heathrow Airport to Knock flight tickets
Aer Lingus
9 Oct
LHR11:05London Heathrow
1h 30m
NOC12:35Knock Intl
21 Oct
NOC13:05Knock Intl
1h 25m
LHR14:30London Heathrow
£70
Aer Lingus
7 Oct
LHR11:05London Heathrow
1h 30m
NOC12:35Knock Intl
17 Oct
NOC13:05Knock Intl
1h 25m
LHR14:30London Heathrow
£73
Aer Lingus
4 Oct
LHR11:05London Heathrow
1h 30m
NOC12:35Knock Intl
21 Oct
NOC13:05Knock Intl
1h 25m
LHR14:30London Heathrow
£77

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

Fri 9/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 21/10

13:05-14:30

Nonstop1h 25m

£70

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Wed 7/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Sat 17/10

13:05-14:30

Nonstop1h 25m

£73

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Sun 4/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Wed 21/10

13:05-14:30

Nonstop1h 25m

£77

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Mon 5/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Tue 13/10

13:05-14:30

Nonstop1h 25m

£78

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Tue 29/9

11:05-12:35

Nonstop1h 30m

Knock Intl

Tue 6/10

13:05-14:30

Nonstop1h 25m

£78

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Thu 15/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Thu 22/10

13:05-14:30

Nonstop1h 25m

£78

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Fri 16/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Fri 23/10

13:05-14:30

Nonstop1h 25m

£78

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Sun 18/10

11:05-12:35

Nonstop1h 30m

Knock Intl

Fri 23/10

13:05-14:30

Nonstop1h 25m

£78

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Tue 27/10

20:50-15:15

2 stops18h 25m

Knock Intl

Tue 10/11

13:00-14:30

Nonstop1h 30m

£124

LondonKnock

LHR London Heathrow - NOC Knock Intl

LHRNOC

London Heathrow

Sun 11/10

20:50-17:30

2 stops20h 40m

Knock Intl

Tue 13/10

13:05-14:30

Nonstop1h 25m

£128

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?

Prices are currently low for flights on this route.

Typical prices usually range from £98 to £147.
The lowest price recently found on this route was £70.

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 £101. The month of September is another great option to travel to Knock, with average flight prices from London Heathrow Airport averaging around £113.

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 £60. 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 £101 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 £137 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 £99 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 September 2026, prices for London Heathrow Airport to Knock flights are approximately 11% 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

£42

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 £42. The best return flight deal from London Heathrow Airport to Knock found on momondo in the last 72 hours is £70.
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?

  • 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?

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

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 LingusPriceFrom £91Free CancellationRating
7.3
1,745 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 1,745 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 £91 (round-trip), much lower than the average airfare cost of £139 for Aer Lingus flights on this route.

Travelling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
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.

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