NOC - LHR

€56 Find Cheap Flights from Knock to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knock to Heathrow departing on 18/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knock to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knock to London, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
€104
Typical prices: €142-€130
Aer Lingus
Sat 2/5Mon 18/5
NOC - LHR • Direct
Cheapest one-way flight
€55
Overall average: €97
Aer Lingus
Sat 18/4
NOC - LHR • Direct
Direct flights
You can fly direct with Aer Lingus. Average duration is 1h 25m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 35% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knock to Heathrow (NOC-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Knock to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Knock to Heathrow

Sat, 2 May - Mon, 18 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€104Aer Lingus
Wed, 20 May - Wed, 27 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€106Aer Lingus
Wed, 20 May - Wed, 27 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€107Aer Lingus
Fri, 1 May - Sun, 17 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€109Aer Lingus
Fri, 1 May - Wed, 27 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€110Aer Lingus
Fri, 1 May - Tue, 5 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€112Aer Lingus
Fri, 1 May - Sun, 3 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€113Aer Lingus
Fri, 1 May - Sun, 3 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€115Aer Lingus
Tue, 28 Apr - Wed, 29 Apr
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€123Aer Lingus
Sun, 3 May - Sun, 10 May
Aer Lingus Logo
13:05 - 14:30
NOC
-
LHR
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35
LHR
-
NOC
1h 30mdirect
€129Aer Lingus
Booking Insights

KAYAK's insights & trends for Knock to Heathrow flights

Get data-powered insights and trends into flights from Knock to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Knock to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knock to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Knock to London Heathrow Airport is January, where tickets cost €97 (return) on average. On the other hand, the most expensive months are September and October, where the average cost of round-trip tickets is €182 and €181 respectively.

Good to know

Low seasonApril
Cheapest flight€55
Best time to beat the crowds (31% less expensive on average)
Most popular time to fly (19% more expensive on average)
Flight from Knock to London Heathrow Airport

When to book flights from Knock to Heathrow

Are your dates flexible? Find out the best times to travel from Knock to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Knock to London Heathrow Airport flights

  • What is the cheapest flight from Knock to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Knock to London Heathrow Airport was €55 for a one-way ticket and €104 for a return.

  • Which aircraft models fly most regularly from Knock to London Heathrow Airport?

    The Airbus A320neo is the aircraft model that flies most regularly on the Knock to London Heathrow Airport flight route.

  • On which days can I fly direct from Knock to London Heathrow Airport?

    There are direct flights from Knock to London Heathrow Airport on a daily basis.

  • How does KAYAK find such low prices on flights from Knock to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knock to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knock to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Knock is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knock to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Knock with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knock to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Knock up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Knock to London Heathrow Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for €74 or less one-way and €171 or less round-trip.

Prefer to fly direct from Knock Intl to London Heathrow?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop from Knock Intl to London Heathrow.
Find which airlines fly direct from Knock Intl Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Knock Intl to London Heathrow

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Direct returns

London Heathrow to Knock Intl

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Reviews of the top airline flying from Knock to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Knock to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knock to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1499 reviews
7.0Entertainment
7.4Boarding
6.6Food
8.1Crew
7.2Comfort
Airline reviews

Checked in ok for 3 flights at the airport check-in desk, but apparently I was not checked in to my connecting flights even though I was assured that I was and had seats on all 3 flights. Aer Lingus departure was also delayed for 1.5 hours which gave no time to collect bags to go through customs.

4.0 OkayWendy, Apr 2026
DUB - YYZ
Read more Aer Lingus reviews

Checked in ok for 3 flights at the airport check-in desk, but apparently I was not checked in to my connecting flights even though I was assured that I was and had seats on all 3 flights. Aer Lingus departure was also delayed for 1.5 hours which gave no time to collect bags to go through customs.

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

One of the best flight experiences I've have had in along time. Would fly with them again.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

Everything you need to know for your flight from Knock to Heathrow

Information on your arrival and departure airports