LHR

€41 Find Cheap Flights to London Heathrow Airport – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
€68
Typical prices: €104-€154
British Airways
Sun 7/2Fri 12/2
DUB - LHR • Direct
Cheapest one-way flight
€41
Typical prices: €73-€122
British Airways
Wed 2/9
DUB - LHR • Direct
Top airlines
Most flights • 142 per week
Best reviews • 7.3 score
Airline reviews
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Top routes
Insights
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 35% compared to booking last minute.
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When to travel
Cheapest • 20% price drop
Most popular
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Flight Deals

Cheap Flights to Heathrow

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Heathrow

Sun, 7 Feb - Fri, 12 Feb
British Airways Logo
15:55 - 17:20DUB  Dublin-LHR London Heathrow
1h 25mdirect
British Airways Logo
16:05 - 17:35LHR  London Heathrow-DUB Dublin
1h 30mdirect
€68British Airways
Sun, 7 Feb - Wed, 10 Feb
British Airways Logo
19:25 - 20:45DUB  Dublin-LHR London Heathrow
1h 20mdirect
British Airways Logo
06:30 - 07:50LHR  London Heathrow-DUB Dublin
1h 20mdirect
€73British Airways
Sun, 7 Feb - Sat, 13 Feb
British Airways Logo
15:55 - 17:20DUB  Dublin-LHR London Heathrow
1h 25mdirect
British Airways Logo
18:25 - 19:45LHR  London Heathrow-DUB Dublin
1h 20mdirect
€77British Airways
Wed, 2 Sep - Wed, 30 Sep
British Airways Logo
10:30 - 12:00DUB  Dublin-LHR London Heathrow
1h 30mdirect
British Airways Logo
18:05 - 19:30LHR  London Heathrow-DUB Dublin
1h 25mdirect
€89British Airways
Tue, 15 Sep - Tue, 22 Sep
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
€104Aer Lingus
Thu, 17 Sep - Thu, 24 Sep
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
€105Aer Lingus
Fri, 4 Sep - Mon, 7 Sep
Aer Lingus Logo
13:05 - 14:30NOC  Knock Intl-LHR London Heathrow
1h 25mdirect
Aer Lingus Logo
11:05 - 12:35LHR  London Heathrow-NOC Knock Intl
1h 30mdirect
€106Aer Lingus
Wed, 2 Sep - Wed, 9 Sep
Multiple Airlines Logo
10:30 - 12:00DUB  Dublin-LHR London Heathrow
1h 30mdirect
Multiple Airlines Logo
15:50 - 17:15LHR  London Heathrow-DUB Dublin
1h 25mdirect
€120Multiple Airlines
Fri, 9 Oct - Sat, 10 Oct
Multiple Airlines Logo
20:10 - 21:25DUB  Dublin-LHR London Heathrow
1h 15mdirect
Multiple Airlines Logo
15:10 - 16:35LHR  London Heathrow-DUB Dublin
1h 25mdirect
€122Multiple Airlines
Sat, 5 Sep - Mon, 7 Sep
Multiple Airlines Logo
20:15 - 21:30DUB  Dublin-LHR London Heathrow
1h 15mdirect
Multiple Airlines Logo
21:10 - 22:30LHR  London Heathrow-DUB Dublin
1h 20mdirect
€128Multiple Airlines
Booking Insights

KAYAK's insights & trends for flights to Heathrow

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

What is the cheapest flight to London Heathrow Airport?

In the last 5 days, the cheapest flight deal to London Heathrow Airport was found on the route from Dublin, at €68 return. The most popular connection is from Cork to London Heathrow Airport, while KAYAK users have found return deals for as low as €107 in the last 5 days.

How much is a flight to London Heathrow Airport?

A flight to London Heathrow Airport costs €431 on average. The cheapest price found on KAYAK in the last 2 weeks cost €62 and departed from Dublin. The most popular routes on KAYAK are Shannon to London Heathrow Airport which costs €786 on average, and Dublin to London Heathrow Airport, which costs €679 on average.

What is the cheapest day to fly to London?

Based on KAYAK data, the cheapest day to fly to London is Friday where round-trip tickets can be as cheap as €654. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €792 on average.

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

The cheapest month for flights to London Heathrow Airport is January, where tickets cost €122 on average for return flights. On the other hand, the most expensive months are December and June, where the average cost of tickets from Ireland is €173 and €167 respectively. For one-way flights, the best month to travel is February with an average price of €80.

What is the cheapest time of day to fly to London Heathrow Airport?

The cheapest time of day to fly to London Heathrow Airport is generally at night, when round-trip flights cost €584 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is €832.

What is a good deal for flights to London Heathrow Airport?

If you’re looking for cheap airfare to London Heathrow Airport, 25% of our users found tickets to London Heathrow Airport for the following prices or less: From Cork €200 return, from Dublin €281 return.

How far in advance should I book a flight to London Heathrow Airport?

To get a below average price, you should book around 4 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know – Book Cheap London Heathrow Airport Plane Tickets

Low season

January

Cheapest flight

€41
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flight from Dublin to London Heathrow Airport

When to book flights to Heathrow

Are your dates flexible? Find out the best times to travel to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs - booking London Heathrow Airport flights

  • What is the cheapest flight to London Heathrow Airport?

    In the last 5 days, the cheapest flight deal to London Heathrow Airport was found on the route from Dublin, at €68 return. The most popular connection is from Cork to London Heathrow Airport, while KAYAK users have found return deals for as low as €107 in the last 5 days.

  • How far is London Heathrow Airport from central London?

    The distance between London Heathrow Airport and the city centre of London is 23 km.

  • How much is a flight to London?

    On average, a flight to London costs €431. The cheapest price found on KAYAK in the last 2 weeks cost €62 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights 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 to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to London Heathrow Airport

  • Looking for cheap airfare to London Heathrow Airport? 25% of our users found return tickets to London Heathrow Airport for the following prices or less: From Knock €174, from Dublin €1,185, from Shannon €1,662
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Reviews of the top airlines flying to Heathrow

 
Need help choosing which airline to fly with 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.
7.3
Aer LingusOverall score based on 1711 reviews
6.7Food
7.5Boarding
7.2Comfort
7.0Entertainment
8.1Crew
Airline reviews

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

2.0 MediocreGeorge Craig, Jul 2026
Read more Aer Lingus reviews

Air Lingus was in no hurry to get us on the plane as sat at the gate a long time before they boarded us. Then they leave us on the tarmac for an hour. They were no help to let me know what I needed to do to get home. I had to navigate London Heathrow with 0 help from them.

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!!

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

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Short flight so not much to rate. Surprised I had to pay for a soda.

Very good need to offer better choice of food for business

Air Lingus flights were delayed on each of the three flights we took. Not a very good , and organized airline.

I'm flying several times per month in business class. You had the worst food by far from any company I have ever flew with. The Spanish wine was great. I purchased Internet, but it didn't work well for most of the flight.

I liked the crew and boarding, short wait between flight was great. My problem was that the WiFi was not accessible through my phone and on the trip from Britain and Larnaca I didn’t have much entertainment. On my way there I felt that the didn’t give up much food for a 6 hour flight….I didn’t eat much in between flights assuming that they will serve something more substantial than what was served so I was really hungry when I was in Cyprus

We loved our flight attendant (Emma, from Scotland), the meals were perfectly spaced out, and the in-flight entertainment was super generous and delightful.

Why don't they board from the back of the plane to the front. We have to move by all the people and their luggage to get to the seats.

The boarding call announcements versus the Staff announcements versus the digital signage board on the out-going and returning flights WERE NOT IN SYNC. I was sent through check and re-checks 3 times. WHY?

With three empty seats across the aisle from me I politely asked the crew if I could sit in one of those seats. They initially told me I couldn't do it for my safety. When I pressed them again they blamed the captain. So which was it? I didn't appreciate either nonsense explanation simply because they didn't want to honor my request.

Great room between the seats, food was excellent, very comfortable overall and could have stayed on the plane even longer

Flight was great (only a short hop from London to Dublin). Wi-Fi available on board(around 2 euros), power sockets, complimentary water and biscuit. Landin/ takeoff all went without a flaw.

The issue wasn’t necessarily with British Airlines but was a reaction to their delayed flight from Miami to London on Aug 18. Due to the delay out of Miami, we missed our BA flight with Aer Linguis on the 19th from London to Cork, Ireland. The attendant in London was helpful and rebooked us for a flight later that same day ($120). However, she failed to mention that as a result of the missed flight, our returning flight was also cancelled and the rebooking cost was $451. Disappointed at the lack of communication between airlines and between the agent and the customer.

You lost my luggage on the trip to Dublin and again on the way back, still waiting on luggage.

Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
Stansted
Luton
Wembley
Gatwick
Hounslow
Croydon
Milton Keynes
Watford
Ilford
Slough
Southend-on-Sea
Northampton
Guildford
Eastbourne
St. Albans
Maidstone
Hayes
Ipswich
Swindon
Stratford-upon-Avon

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London