LHR

€30 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 23/1. 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
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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
In the last 7 days, travellers have searched 41,299,237 times on KAYAK, and here's why:

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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 from Ireland to Heathrow

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ireland to Heathrow.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
20:30 - 21:50DUB-LHR
1h 20mdirect
06:30 - 07:55LHR-DUB
1h 25mdirect
€82British Airways
Find Deal
Thu, 6 Feb - Mon, 10 Feb
17:50 - 19:10DUB-LHR
1h 20mdirect
06:30 - 07:55LHR-DUB
1h 25mdirect
€83British Airways
Find Deal
Mon, 20 Jan - Mon, 27 Jan
17:50 - 19:10DUB-LHR
1h 20mdirect
06:30 - 07:55LHR-DUB
1h 25mdirect
€84British Airways
Find Deal
Mon, 20 Jan - Mon, 27 Jan
07:45 - 09:15SNN-LHR
1h 30mdirect
18:05 - 19:25LHR-SNN
1h 20mdirect
€98Aer Lingus
Find Deal
Thu, 16 Jan - Fri, 31 Jan
20:05 - 21:25SNN-LHR
1h 20mdirect
15:20 - 16:45LHR-SNN
1h 25mdirect
€102Aer Lingus
Find Deal
Mon, 6 Jan - Thu, 23 Jan
20:35 - 21:55DUB-LHR
1h 20mdirect
07:50 - 09:10LHR-DUB
1h 20mdirect
€116
Find Deal
Sat, 1 Mar - Sun, 2 Mar
10:00 - 11:25DUB-LHR
1h 25mdirect
06:30 - 07:55LHR-DUB
1h 25mdirect
€117
Find Deal
Wed, 8 Jan - Wed, 22 Jan
13:25 - 19:15DUB-LHR
5h 50m1 stop
17:50 - 22:05LHR-DUB
4h 15m1 stop
€169KLM
Find Deal
Fri, 7 Mar - Sun, 9 Mar
08:50 - 17:00DUB-LHR
8h 10m1 stop
10:00 - 16:40LHR-DUB
6h 40m1 stop
€172KLM
Find Deal
Mon, 13 Jan - Mon, 20 Jan
08:55 - 18:20DUB-LHR
9h 25m1 stop
17:35 - 22:50LHR-DUB
5h 15m1 stop
€184Air France
Find Deal
Tue, 14 Jan - Tue, 21 Jan

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 €77 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €110 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 €408 on average. The cheapest price found on KAYAK in the last 2 weeks cost €30 and departed from Dublin. The most popular routes on KAYAK are Dublin to London Heathrow Airport which costs €651 on average, and Shannon to London Heathrow Airport, which costs €474 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 €118. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €163 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 €96 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 €164 and €163 respectively. For one-way flights, the best month to travel is January with an average price of €112.

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 €130 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 €143.

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 €113 return, from Shannon €131 return, from Dublin €212 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

October

High season

August

Cheapest flight

€30
Best time to beat the crowds (5% less expensive on average)
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 €77 return. The most popular connection is from Cork to London Heathrow Airport and KAYAK users have found return deals for as low as €110 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 €408. The cheapest price found on KAYAK in the last 2 weeks cost €30 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.

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

    Each week there are around 165 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 Knock €87, from Shannon €783, from Dublin €871
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be October, November and December. 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, +87 more

ANA, AccesRail, +88 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, +84 more

ANA, AccesRail, +85 more

Wednesday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 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 1072 reviews
6.4Food
7.3Boarding
6.8Entertainment
7.0Comfort
8.0Crew
Airline reviews

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

10.0 ExcellentNina, Nov 2024DUB - SFO
Read more Aer Lingus reviews

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

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

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.

This was a HORRIBLE experience. I booked a two-leg flight from Reykjavik to Istanbul. My first flight ran 3 hours late and I then missed my flight to Istanbul. British Airways put me on a Turkish Airlines flight to Istanbul. No harm done, right? Wrong. The Turkish Airlines flight turned out to be overbooked. By the time I learned of this, British Airways closed their help desk. To add insult to injury, they helped one person in front of me before casually putting up a closed sign even though they knew I was stranded (their fault!) and needed help. I ended up spending $1000+ out of pocket to clean up their mess (including the flight to Johannesburg I had to rebook since BA delayed me so much) and haven’t heard a word about reimbursement. I have never had such an awful travel experience in my life. I know delays happen, but they need to take care of their passengers when these things happen, not leave us stranded in a foreign country in the middle of the night with nowhere to go.

The seats are incredibly uncomfortable. My luggage didn't make it on my flight from London to Nashville.

5 days later I have not yet received my luggage so terrible and unacceptable

everything on the flight was a great experience except the food could have been better!

The seats were uncomfy and the food tasteless, crew clueless

Easy and quick check in, clean and nice seats. Overall excellent experience.

My problem was with the onward connection between London Heathrow and Washington IAD. The flight was several times changed.

The A350 is a great plane but BA's seating was incredibly tight (eg compared to the same plane as flown by BA's partner Finnair) and with a middle seat it was very claustrophobic

Flights were on time. Crew was courteous. Food was much better than I expected. Heathrow is a good transit hub - great selection at the duty free.

The seats in airbus from LA to London are uncomfortable. They are too narrow. I am a slim person but felt cramped. The way the seats are laid out really hinders privacy. You are forced to look at the person next to you which is awkward, Also the entertainment on the same leg was limited. The crew was excellent and attentive and the food was decent. The seats on London to Delhi leg were way better. The crew again was very attentive and polite.

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.
6/2Thu
directBritish Airways
1h 20mDUB-LHR
10/2Mon
directBritish Airways
1h 25mLHR-DUB
€82
20/1Mon
directBritish Airways
1h 20mDUB-LHR
27/1Mon
directBritish Airways
1h 25mLHR-DUB
€83
20/1Mon
directBritish Airways
1h 20mDUB-LHR
27/1Mon
directBritish Airways
1h 25mLHR-DUB
€84
16/1Thu
directAer Lingus
1h 30mSNN-LHR
31/1Fri
directAer Lingus
1h 20mLHR-SNN
€98
6/1Mon
directAer Lingus
1h 20mSNN-LHR
23/1Thu
directAer Lingus
1h 25mLHR-SNN
€102
1/3Sat
direct
1h 20mDUB-LHR
2/3Sun
direct
1h 20mLHR-DUB
€116
8/1Wed
direct
1h 25mDUB-LHR
22/1Wed
direct
1h 25mLHR-DUB
€117
7/3Fri
1 stopKLM
5h 50mDUB-LHR
9/3Sun
1 stopKLM
4h 15mLHR-DUB
€169
13/1Mon
1 stopKLM
8h 10mDUB-LHR
20/1Mon
1 stopKLM
6h 40mLHR-DUB
€172
14/1Tue
1 stopAir France
9h 25mDUB-LHR
21/1Tue
1 stopAir France
5h 15mLHR-DUB
€184

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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.
23/1Thu
directBritish Airways
1h 25mDUB-LHR
€30
11/3Tue
directBritish Airways
1h 20mDUB-LHR
€31
11/2Tue
directAer Lingus
1h 30mSNN-LHR
€53
7/2Fri
directAer Lingus
1h 30mNOC-LHR
€55
18/1Sat
1 stopIberia
7h 15mDUB-LHR
€61
14/1Tue
1 stopIberia
7h 15mDUB-LHR
€69
23/1Thu
1 stop
5h 30mDUB-LHR
€71
15/1Wed
1 stopKLM
7h 15mDUB-LHR
€76
23/1Thu
1 stopKLM
5h 50mDUB-LHR
€77
17/2Mon
1 stop
3h 50mKIR-LHR
€79

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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.
18/12Wed
directBritish Airways
1h 35mDUB-LHR
9/1Thu
directBritish Airways
1h 25mLHR-DUB
€139
19/12Thu
directAer Lingus
1h 20mDUB-LHR
14/1Tue
directAer Lingus
1h 20mLHR-DUB
€143
19/12Thu
directAer Lingus
1h 20mDUB-LHR
26/12Thu
directAer Lingus
1h 20mLHR-DUB
€158
21/12Sat
directBritish Airways
1h 20mDUB-LHR
3/1Fri
directBritish Airways
1h 25mLHR-DUB
€165
20/12Fri
multi-stopAir France
7h 40mDUB-LHR
22/12Sun
multi-stopAir France
7h 35mLHR-DUB
€246
19/12Thu
multi-stopAir France
4h 45mDUB-LHR
22/12Sun
multi-stopAir France
7h 35mLHR-DUB
€250
19/12Thu
multi-stopScandinavian Airlines
6h 45mDUB-LHR
14/1Tue
multi-stopScandinavian Airlines
5h 00mLHR-DUB
€251
17/12Tue
multi-stopSWISS
13h 25mDUB-LHR
21/12Sat
multi-stopSWISS
20h 25mLHR-DUB
€317
17/12Tue
multi-stopSWISS
13h 25mDUB-LHR
21/12Sat
multi-stopSWISS
20h 25mLHR-DUB
€360
17/12Tue
multi-stopScandinavian Airlines
5h 10mDUB-LHR
21/12Sat
multi-stopScandinavian Airlines
26h 40mLHR-DUB
€420

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Everything you need to know for your flight to Heathrow

Information on the airport you'll fly into in London

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