LHR

€38 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 10/9. 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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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 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

KAYAK's recommended return flight deals from the most popular airlines that fly to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
20:20 - 21:40DUB-LHR
1h 20mdirect
06:20 - 07:45LHR-DUB
1h 25mdirect
€88British Airways
Find Deal
Wed, 21 May - Tue, 27 May
07:40 - 09:05SNN-LHR
1h 25mdirect
14:40 - 16:10LHR-SNN
1h 30mdirect
€88Aer Lingus
Find Deal
Thu, 1 May - Wed, 28 May
20:10 - 21:30DUB-LHR
1h 20mdirect
06:20 - 07:45LHR-DUB
1h 25mdirect
€89British Airways
Find Deal
Sat, 24 May - Tue, 27 May
16:15 - 17:35ORK-LHR
1h 20mdirect
22:25 - 23:45LHR-ORK
1h 20mdirect
€102Aer Lingus
Find Deal
Wed, 14 May - Sat, 31 May
19:30 - 14:15DUB-LHR
18h 45m1 stop
15:05 - 07:25LHR-DUB
16h 20m1 stop
€162Vueling
Find Deal
Tue, 29 Apr - Thu, 8 May
12:40 - 17:40DUB-LHR
5h 00m1 stop
06:40 - 11:50LHR-DUB
5h 10m1 stop
€185Scandinavian Airlines
Find Deal
Wed, 21 May - Tue, 27 May
12:40 - 17:40DUB-LHR
5h 00m1 stop
06:40 - 11:50LHR-DUB
5h 10m1 stop
€186Scandinavian Airlines
Find Deal
Wed, 21 May - Tue, 27 May
05:55 - 10:45DUB-LHR
4h 50m1 stop
17:10 - 22:25LHR-DUB
5h 15m1 stop
€192KLM
Find Deal
Thu, 15 May - Sat, 17 May
05:55 - 10:45DUB-LHR
4h 50m1 stop
08:40 - 12:35LHR-DUB
3h 55m1 stop
€193KLM
Find Deal
Tue, 6 May - Tue, 13 May
08:20 - 14:15DUB-LHR
5h 55m1 stop
15:05 - 07:25LHR-DUB
16h 20m1 stop
€212Vueling
Find Deal
Thu, 3 Apr - Thu, 24 Apr

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?

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 €81 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €102 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 €384 on average. The cheapest price found on KAYAK in the last 2 weeks cost €53 and departed from Shannon. The most popular routes on KAYAK are Dublin to London Heathrow Airport which costs €582 on average, and Shannon to London Heathrow Airport, which costs €728 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 €461. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €679 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 €115 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 €156 and €151 respectively. For one-way flights, the best month to travel is February with an average price of €99.

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 €175 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 €911.

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 Knock €145 return, from Dublin €189 return, from Cork €288 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 – Book Cheap London Heathrow Airport Plane Tickets

Low season

January

High season

August

Cheapest flight

€38
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 €81 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €102 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 €384. The cheapest price found on KAYAK in the last 2 weeks cost €53 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 200 direct flights from within Ireland to London Heathrow Airport. The most common day for departures is Friday, with 16% 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 €104, from Shannon €932, from Dublin €1,104
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

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, +85 more

ANA, AccesRail, +86 more

Thursday

ANA, AccesRail, Aegean Airlines, +82 more

ANA, AccesRail, +83 more

Friday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Saturday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Sunday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 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, +85 more

ANA, AccesRail, +86 more

Thursday

ANA, AccesRail, Aegean Airlines, +82 more

ANA, AccesRail, +83 more

Friday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Saturday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Sunday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 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.
7.0
Aer LingusOverall score based on 1063 reviews
6.7Entertainment
7.9Crew
7.2Boarding
7.0Comfort
6.4Food
Airline reviews

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

2.0 MediocreAshish, Jan 2025LIS - DUB
Read more Aer Lingus reviews

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

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

Changed flight terminals/gates twice. The staff and hospitality was good.

Boarding was efficient. Flight left on time. Wasn’t full so we could spread out a bit. Food was ok.

Used to be my "go to" airline but would be my last choice these days. I think some of the cabin crew believe it would be a great job if it wasn't for the customers.

I love travelling with British airways because everything is supper goog

Not that great. There were no entertainment screens, internet, or any way to track the flight path. The seats were fixed in order not to recline at all. The crew and the staff at the check-in counters were the only nice thing.

Experience was good. Could have been better if we didn’t have to board an hour before the flight to ghana and miss relaxing time in the lounge. That process was very stressful

my flight was canceled and rescheduled for two days later

They oversold and down graded me from Premium economy to coach. 75-pound compensation is insufficient if you chose a particular class. I get dehydrated and severe Charley Horse cramps. I requested a bottle of water, even half even less… but no- “We are only allowed to give water by the glass. Nonsense. Lastly, their planes now have a fixed barrier between seats. So even if your entire row is empty, you are confined to just your space. Lastly, London now requires a transit visa for $30 for US citizens. Never travel through London again

I love British Airlines but I think it’s time for a change.My seat was occupied by very large passengers sitting next to me,I felt very uncomfortable and very bad.I’m sorry but I have to say it.

We had to pay extra for seats and bags (even for an international flight). I paid for extra comfort seats, but it was under an overhead bin that the crew used for supplies. I paid extra hoping to get sleep. We were constantly woken up by the crew opening and closing the bins. Our seat shouldn't be considered extra comfort. We paid significantly more than the rest of the cabin for these seats

Travelling to a place near Heathrow?

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

Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London

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