LHR

€37 Find Cheap Flights 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 to Heathrow departing on 15/2. 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.
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Search 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 for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
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Cheap Flight Deals to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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.

Recent return flight deals to Heathrow

Recommended return deals departing in the coming months from the most popular airlines that fly to Heathrow.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
14:15 - 15:35DUB-LHR
1h 20mdirect
09:50 - 11:15LHR-DUB
1h 25mdirect
€82Aer Lingus
Find Deal
Sat, 8 Feb - Wed, 26 Feb
20:35 - 21:55DUB-LHR
1h 20mdirect
06:30 - 07:55LHR-DUB
1h 25mdirect
€83British Airways
Find Deal
Sat, 1 Mar - Mon, 3 Mar
16:00 - 17:25DUB-LHR
1h 25mdirect
18:15 - 19:35LHR-DUB
1h 20mdirect
€84British Airways
Find Deal
Mon, 24 Feb - Wed, 26 Feb
17:35 - 18:50ORK-LHR
1h 15mdirect
22:05 - 23:25LHR-ORK
1h 20mdirect
€84Aer Lingus
Find Deal
Wed, 12 Feb - Mon, 24 Feb
14:15 - 15:35DUB-LHR
1h 20mdirect
16:20 - 17:45LHR-DUB
1h 25mdirect
€85Aer Lingus
Find Deal
Sat, 1 Mar - Sat, 8 Mar
16:40 - 21:25DUB-LHR
4h 45m1 stop
17:35 - 22:50LHR-DUB
5h 15m1 stop
€170Air France
Find Deal
Sat, 25 Jan - Tue, 28 Jan
08:50 - 13:50DUB-LHR
5h 00m1 stop
08:40 - 12:40LHR-DUB
4h 00m1 stop
€171KLM
Find Deal
Tue, 4 Feb - Tue, 11 Feb
05:55 - 10:25DUB-LHR
4h 30m1 stop
11:15 - 16:40LHR-DUB
5h 25m1 stop
€172KLM
Find Deal
Sat, 1 Mar - Sat, 8 Mar
12:30 - 21:40DUB-LHR
9h 10m1 stop
19:30 - 11:40LHR-DUB
16h 10m1 stop
€215Scandinavian Airlines
Find Deal
Wed, 26 Feb - Thu, 27 Feb
12:30 - 21:40DUB-LHR
9h 10m1 stop
10:20 - 11:40LHR-DUB
25h 20m1 stop
€216Scandinavian Airlines
Find Deal
Wed, 26 Feb - Thu, 27 Feb

Flights to Heathrow - Travel Insights & Trends

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?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.
In the last 3 days, the cheapest flight deal to London Heathrow Airport was found on the route from Dublin, at €79 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €84 in the last 3 days.

How much is a flight to London Heathrow Airport?

The average and cheapest price for all round-trip flights to London Heathrow Airport from each origin found by users searching on KAYAK in the last month.
A flight to London Heathrow Airport costs €598 on average. The cheapest price found on KAYAK in the last 2 weeks cost €45 and departed from Shannon. The most popular routes on KAYAK are Dublin to London Heathrow Airport which costs €703 on average, and Shannon to London Heathrow Airport, which costs €606 on average.
See prices from:

What is the cheapest day to fly to London?

The average price of all round-trip flights to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to London is Tuesday where round-trip tickets can be as cheap as €121. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €166 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to London Heathrow Airport is January, where tickets cost €108 on average for return flights. On the other hand, the most expensive months are November and December, where the average cost of tickets from Ireland is €167 and €159 respectively. For one-way flights, the best month to travel is January with an average price of €124.

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

The average price for all round-trip flights to London Heathrow Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to London Heathrow Airport is generally at night, when round-trip flights cost €133 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €149.

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 Shannon €174 return, from Dublin €403 return, from Cork €452 return.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

December

High season

August

Cheapest flight

€37
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly (3% more expensive 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
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. The information is for flights to London based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking London Heathrow Airport flights

  • What is the cheapest flight to London Heathrow Airport?

    In the last 3 days, the cheapest flight deal to London Heathrow Airport was found on the route from Dublin, at €79 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €84 in the last 3 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 €598. The cheapest price found on KAYAK in the last 2 weeks cost €45 and departed from Shannon 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.

  • How many direct flights to London Heathrow Airport are there each week?

    Each week there are around 171 direct flights from within Ireland to London Heathrow Airport. The most common day for departures is Sunday, with 15% of flights taking off on this day.

See more FAQs

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 €113, from Shannon €847, from Dublin €904
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, February and March. The cheapest month to fly from Ireland is January.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.
See more tips

Prefer to fly direct to London Heathrow?

Find which airlines fly direct to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Ireland to London Heathrow

Monday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Tuesday

ANA, AccesRail, Aegean Airlines, +84 more

ANA, AccesRail, +85 more

Wednesday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Thursday

ANA, AccesRail, Aegean Airlines, +81 more

ANA, AccesRail, +82 more

Friday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

Saturday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 more

Sunday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

See more direct flights

Direct returns

London Heathrow to Ireland

Monday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Tuesday

ANA, AccesRail, Aegean Airlines, +84 more

ANA, AccesRail, +85 more

Wednesday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Thursday

ANA, AccesRail, Aegean Airlines, +81 more

ANA, AccesRail, +82 more

Friday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

Saturday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 more

Sunday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

See more direct flights
See more direct flights

Top airlines flying to Heathrow

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
7.1
Aer LingusOverall score based on 1075 reviews
6.8Entertainment
6.4Food
7.2Boarding
7.9Crew
7.0Comfort
Airline reviews

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

2.0 MediocreGino, Jan 2025DUB - BOS
Read more Aer Lingus reviews

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

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

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

Missed food service or not enough food available to serve the passengers. Very poor leg room in economy. Uncomfortable and old seats with some of the seat covers coming off. Lights, entertainment system and call buttons not working for an entire section of the flight between Del-Lhr. Very poor experience overall.

Boarding in Dallas was hell with extremely rude gate agents , especially a lady named Rajathi who was the epitome of rudeness with no compassion at all . She was horrible and I wonder why airlines have people like her on their roster who exude arrogance and haughtiness . Will probably not fly British Airwsys because of people like her .

It was just ok. Half the bathrooms were broke on the flight.

Was very bad the cancel the flight after when we arrived to London

1. Missed to deliver bags at Destination 2. no coordination at Layover for flight connection for wheel chair , could have missed flights 3. Customer service agents are not honest , talk with attitude and do not provide correct information about baggage policy

Denied boarding passes for connecting flight. Missed connection as a result. Customer services T5 Heathrow airport vile, arrogant people who lied to us and threatened us.

Much better than from Singapore to London, which was awful. London to ORD was business class experience expected. Friendly and helpful flight attendants, decent main course, delicious dessert, comfortable lay flat private seats.

The flight was severely delayed. The check in desk was rude.

Everything worked well. But nothing really stood out. BA is a reliable work horse for international travel. Moderately priced, reliable but not outstanding in any aspect. I will definitely use them again. The morning flights out of India a definite blessing.

Horrible. The Athens to London flight was horrible. At some point there was a long piece of toilet paper on the corridor floor for 30min, crew were stepping over it. Only picked up when they rolled out the garbage cart. Not a pleasant site. The whole experience reminded me of easy jet. Not worth the price.

Book Cheap London Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to London found on KAYAK in the last 72 hours.
8/2Sat
directAer Lingus
1h 20mDUB-LHR
26/2Wed
directAer Lingus
1h 25mLHR-DUB
€82
1/3Sat
directBritish Airways
1h 20mDUB-LHR
3/3Mon
directBritish Airways
1h 25mLHR-DUB
€83
24/2Mon
directBritish Airways
1h 25mDUB-LHR
26/2Wed
directBritish Airways
1h 20mLHR-DUB
€84
12/2Wed
directAer Lingus
1h 15mORK-LHR
24/2Mon
directAer Lingus
1h 20mLHR-ORK
€84
1/3Sat
directAer Lingus
1h 20mDUB-LHR
8/3Sat
directAer Lingus
1h 25mLHR-DUB
€85
25/1Sat
1 stopAir France
4h 45mDUB-LHR
28/1Tue
1 stopAir France
5h 15mLHR-DUB
€170
4/2Tue
1 stopKLM
5h 00mDUB-LHR
11/2Tue
1 stopKLM
4h 00mLHR-DUB
€171
1/3Sat
1 stopKLM
4h 30mDUB-LHR
8/3Sat
1 stopKLM
5h 25mLHR-DUB
€172
26/2Wed
1 stopScandinavian Airlines
9h 10mDUB-LHR
27/2Thu
1 stopScandinavian Airlines
16h 10mLHR-DUB
€215
26/2Wed
1 stopScandinavian Airlines
9h 10mDUB-LHR
27/2Thu
1 stopScandinavian Airlines
25h 20mLHR-DUB
€216

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to London found on KAYAK in the last 72 hours.
15/2Sat
directBritish Airways
1h 25mDUB-LHR
€37
3/3Mon
directBritish Airways
1h 20mDUB-LHR
€38
29/1Wed
directAer Lingus
1h 20mSNN-LHR
€40
14/2Fri
directAer Lingus
1h 20mDUB-LHR
€42
28/2Fri
1 stopKLM
7h 25mDUB-LHR
€67
29/1Wed
1 stopVueling
19h 40mDUB-LHR
€70
10/2Mon
1 stop
25h 15mDUB-LHR
€71
17/2Mon
1 stopKLM
7h 15mDUB-LHR
€77
17/2Mon
1 stop
16h 30mDUB-LHR
€79
20/1Mon
1 stopVueling
24h 20mDUB-LHR
€82

Search by stops

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Search by price

Last minute flights to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to London that are departing in the next 10 days.
19/1Sun
directBritish Airways
1h 35mDUB-LHR
19/1Sun
directBritish Airways
1h 30mLHR-DUB
€100
17/1Fri
directAer Lingus
1h 20mSNN-LHR
23/1Thu
directAer Lingus
1h 30mLHR-SNN
€100
19/1Sun
directBritish Airways
1h 20mDUB-LHR
26/1Sun
directBritish Airways
1h 25mLHR-DUB
€103
17/1Fri
directAer Lingus
1h 20mSNN-LHR
21/1Tue
directAer Lingus
1h 20mLHR-SNN
€107
17/1Fri
directAer Lingus
1h 20mSNN-LHR
18/1Sat
directAer Lingus
1h 30mLHR-SNN
€108
21/1Tue
multi-stopAir France
9h 25mDUB-LHR
25/1Sat
multi-stopAir France
5h 15mLHR-DUB
€170
20/1Mon
multi-stopKLM
4h 50mDUB-LHR
24/1Fri
multi-stopKLM
4h 15mLHR-DUB
€239
17/1Fri
multi-stopScandinavian Airlines
6h 00mDUB-LHR
27/1Mon
multi-stopScandinavian Airlines
5h 00mLHR-DUB
€263
20/1Mon
multi-stopAir France
4h 45mDUB-LHR
22/1Wed
multi-stopAir France
17h 20mLHR-DUB
€273
17/1Fri
multi-stopKLM
5h 50mDUB-LHR
23/1Thu
multi-stopKLM
4h 15mLHR-DUB
€282

Search by stops

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Travelling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
Stansted
Luton
Gatwick
Northampton
Milton Keynes
Wembley
Ilford
Bishop's Stortford
Watford
Croydon
Richmond
Hounslow
Swindon
Guildford
Chelmsford
Stratford-upon-Avon
Harrow
Eastbourne
Canterbury
Crawley

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London

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