LHR

€53 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 15/3. 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

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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
15:30 - 16:50DUB-LHR
1h 20mdirect
06:20 - 07:45LHR-DUB
1h 25mdirect
€80British Airways
Find Deal
Fri, 23 May - Mon, 26 May
17:50 - 19:10DUB-LHR
1h 20mdirect
06:20 - 07:45LHR-DUB
1h 25mdirect
€83British Airways
Find Deal
Sat, 29 Mar - Tue, 1 Apr
13:05 - 14:30NOC-LHR
1h 25mdirect
11:05 - 12:35LHR-NOC
1h 30mdirect
€94Aer Lingus
Find Deal
Tue, 8 Apr - Tue, 29 Apr
20:30 - 21:45ORK-LHR
1h 15mdirect
13:45 - 15:10LHR-ORK
1h 25mdirect
€104Aer Lingus
Find Deal
Sat, 19 Apr - Tue, 29 Apr
19:45 - 21:00DUB-LHR
1h 15mdirect
15:15 - 07:55LHR-DUB
16h 40m1 stop
€129
Find Deal
Wed, 19 Mar - Wed, 26 Mar
15:30 - 16:50DUB-LHR
1h 20mdirect
22:00 - 23:10LHR-DUB
1h 10mdirect
€140
Find Deal
Fri, 23 May - Sun, 25 May
13:25 - 19:15DUB-LHR
5h 50m1 stop
08:40 - 12:40LHR-DUB
4h 00m1 stop
€173KLM
Find Deal
Fri, 7 Mar - Tue, 11 Mar
05:55 - 12:05DUB-LHR
6h 10m1 stop
11:45 - 16:40LHR-DUB
4h 55m1 stop
€173KLM
Find Deal
Sat, 22 Mar - Wed, 26 Mar
12:20 - 18:50DUB-LHR
6h 30m1 stop
06:40 - 11:50LHR-DUB
5h 10m1 stop
€207Scandinavian Airlines
Find Deal
Thu, 3 Apr - Mon, 7 Apr
12:40 - 21:40DUB-LHR
9h 00m1 stop
06:40 - 11:50LHR-DUB
5h 10m1 stop
€217Scandinavian Airlines
Find Deal
Wed, 23 Apr - Tue, 29 Apr

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 €76 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €104 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 €475 on average. The cheapest price found on KAYAK in the last 2 weeks cost €41 and departed from Shannon. The most popular routes on KAYAK are Shannon to London Heathrow Airport which costs €564 on average, and Dublin to London Heathrow Airport, which costs €681 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 Friday where round-trip tickets can be as cheap as €411. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €708 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 €120 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 €165 and €157 respectively. For one-way flights, the best month to travel is February with an average price of €113.

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 €166 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 €867.

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 €176 return, from Dublin €322 return, from Cork €492 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

January

High season

August

Cheapest flight

€53
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 1% 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
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 €76 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €104 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 €475. The cheapest price found on KAYAK in the last 2 weeks cost €41 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 172 direct flights from within Ireland to London Heathrow Airport. The most common day for departures is Friday, 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 Shannon €116, from Knock €169, from Dublin €1,107
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. 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, +85 more

ANA, AccesRail, +86 more

Wednesday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Thursday

ANA, AccesRail, Aegean Airlines, +82 more

ANA, AccesRail, +83 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, +85 more

ANA, AccesRail, +86 more

Wednesday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Thursday

ANA, AccesRail, Aegean Airlines, +82 more

ANA, AccesRail, +83 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 1070 reviews
7.0Comfort
6.4Food
7.2Boarding
6.7Entertainment
7.9Crew
Airline reviews

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

10.0 ExcellentRALPH, Feb 2025MAN - DUB
Read more Aer Lingus reviews

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

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.

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

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.

I was charged fees for check in bags at the airport by British Airways. It was supposed to be no charge but Kayak messed up my booking apparently and I had to pay for check in bags. I paid $175.

The worst travel experience of my life. Boarding chaos, delays and disorganisation at every stage. The worst of many was sitting in freezing temperatures for 10 hours whilst asking all cabin crew to turn the heat up to no avail.

They took my carry on and checked it in. Staff in general at Heathrow are not friendly or helpful

There was no legroom whatsoever to the point where my wife dropped her phone and was unable to retrieve it as she couldn’t move. The sound system for the entertainment had a broken socket so was effectively out of action as it just crackled. Just dreadful, I will actively avoid BA in the future

Gate closed way too early - over 1 hour before departure. Put onto next flight. Ticket had been changed without notifying us.

British Airways provided prompt service and maintained excellent cleanliness throughout the flight. However, the business class seats felt tight, and the cabin temperature was uncomfortably warm, making it difficult to sleep. Since I couldn’t rest, I turned to the in-flight entertainment, but the selection was heavily focused on Paramount content, which isn’t my preference. I also found the Bollywood movie options quite limited compared to other airlines. On the positive side, the spirits selection was impressive, and the staff was exceptionally friendly and attentive.

I liked having access to all the Harry Potter movies and the food was good. The staff was also excellent. The pillows and blankets could’ve been better as mine had stains when I arrived

The crew were professional and friendly. It was the most uncomfortable international flight I've ever flown. Crammed in passengers. No overhead space to put my bag. No leg room and unable to recline seat due to seats too close together so it upset passenger behind me! Upgrade price to get 2 inches of more space unreasonable.

Courteous and warm. Good experience while traveling back with an infant.

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.
23/5Fri
directBritish Airways
1h 20mDUB-LHR
26/5Mon
directBritish Airways
1h 25mLHR-DUB
€80
29/3Sat
directBritish Airways
1h 20mDUB-LHR
1/4Tue
directBritish Airways
1h 25mLHR-DUB
€83
8/4Tue
directAer Lingus
1h 25mNOC-LHR
29/4Tue
directAer Lingus
1h 30mLHR-NOC
€94
19/4Sat
directAer Lingus
1h 15mORK-LHR
29/4Tue
directAer Lingus
1h 25mLHR-ORK
€104
19/3Wed
direct
1h 15mDUB-LHR
26/3Wed
1 stop
16h 40mLHR-DUB
€129
23/5Fri
direct
1h 20mDUB-LHR
25/5Sun
direct
1h 10mLHR-DUB
€140
7/3Fri
1 stopKLM
5h 50mDUB-LHR
11/3Tue
1 stopKLM
4h 00mLHR-DUB
€172
22/3Sat
1 stopKLM
6h 10mDUB-LHR
26/3Wed
1 stopKLM
4h 55mLHR-DUB
€173
3/4Thu
1 stopScandinavian Airlines
6h 30mDUB-LHR
7/4Mon
1 stopScandinavian Airlines
5h 10mLHR-DUB
€207
23/4Wed
1 stopScandinavian Airlines
9h 00mDUB-LHR
29/4Tue
1 stopScandinavian Airlines
5h 10mLHR-DUB
€217

Search by stops

Search by airline

Search by price

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.
15/3Sat
directAer Lingus
1h 20mDUB-LHR
€53
1/3Sat
directAer Lingus
1h 20mDUB-LHR
€54
17/3Mon
directBritish Airways
1h 25mDUB-LHR
€55
5/4Sat
directBritish Airways
1h 35mDUB-LHR
€56
20/5Tue
1 stop
11h 30mDUB-LHR
€64
14/5Wed
1 stopScandinavian Airlines
5h 00mDUB-LHR
€75
15/6Sun
1 stop
15h 20mDUB-LHR
€77
23/3Sun
1 stopKLM
4h 50mDUB-LHR
€78
22/3Sat
1 stopKLM
8h 30mDUB-LHR
€80
12/6Thu
1 stopScandinavian Airlines
5h 50mDUB-LHR
€80

Search by stops

Search by airline

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.
24/2Mon
directAer Lingus
1h 20mSNN-LHR
25/2Tue
directAer Lingus
1h 30mLHR-SNN
€111
22/2Sat
directBritish Airways
1h 20mDUB-LHR
22/3Sat
directBritish Airways
1h 20mLHR-DUB
€161
24/2Mon
directAer Lingus
1h 15mDUB-LHR
3/3Mon
directAer Lingus
1h 20mLHR-DUB
€166
24/2Mon
directBritish Airways
1h 20mDUB-LHR
27/2Thu
directBritish Airways
1h 25mLHR-DUB
€172
24/2Mon
directAer Lingus
1h 15mDUB-LHR
26/2Wed
directAer Lingus
1h 25mLHR-DUB
€179
21/2Fri
multi-stopLufthansa
4h 45mDUB-LHR
28/3Fri
multi-stopLufthansa
8h 30mLHR-DUB
€250
24/2Mon
multi-stopVueling
19h 55mDUB-LHR
26/2Wed
multi-stopVueling
16h 40mLHR-DUB
€253
21/2Fri
multi-stopKLM
7h 55mDUB-LHR
24/2Mon
multi-stopKLM
11h 40mLHR-DUB
€269
20/2Thu
multi-stopLufthansa
4h 30mDUB-LHR
28/3Fri
multi-stopLufthansa
8h 30mLHR-DUB
€304
21/2Fri
multi-stopKLM
5h 00mDUB-LHR
23/2Sun
multi-stopKLM
11h 40mLHR-DUB
€306

Search by stops

Search by airline

Search by price

Travelling to a place near Heathrow?

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

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.