Cheap Flights from London Heathrow (LHR) to Dublin (DUB)

Compare London Heathrow to Dublin flight deals

Find the cheapest month or even day of the year to fly to Dublin

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Flight deals from London Heathrow to Dublin

Looking for a cheap last-minute deal or the best return flight from London Heathrow Airport to Dublin Airport? If you want to travel next month, return fares start from £89. Find the lowest prices on one-way and return tickets right here.

Dublin.£52 per passenger.Departing Tue, 8 Jun.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 8 Jun, arriving in Dublin.Price includes taxes and charges.From £52, select.

Dublin.£52 per passenger.Departing Tue, 18 May.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 18 May, arriving in Dublin.Price includes taxes and charges.From £52, select.

Dublin.£53 per passenger.Departing Fri, 19 Mar.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Fri, 19 Mar, arriving in Dublin.Price includes taxes and charges.From £53, select.

Dublin.£53 per passenger.Departing Tue, 6 Apr.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 6 Apr, arriving in Dublin.Price includes taxes and charges.From £53, select.

Dublin.£53 per passenger.Departing Fri, 15 Jan.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Fri, 15 Jan, arriving in Dublin.Price includes taxes and charges.From £53, select.

Dublin.£53 per passenger.Departing Sat, 6 Feb.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sat, 6 Feb, arriving in Dublin.Price includes taxes and charges.From £53, select.

Dublin.£53 per passenger.Departing Tue, 8 Dec.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 8 Dec, arriving in Dublin.Price includes taxes and charges.From £53, select.

Dublin.£54 per passenger.Departing Tue, 17 Nov.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 17 Nov, arriving in Dublin.Price includes taxes and charges.From £54, select.

Dublin.£55 per passenger.Departing Sun, 4 Jul.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 4 Jul, arriving in Dublin.Price includes taxes and charges.From £55, select.

Dublin.£55 per passenger.Departing Tue, 27 Oct.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 27 Oct, arriving in Dublin.Price includes taxes and charges.From £55, select.

Dublin.£56 per passenger.Departing Wed, 19 Aug.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from London Heathrow on Wed, 19 Aug, arriving in Dublin.Price includes taxes and charges.From £56, select.

Dublin.£57 per passenger.Departing Wed, 23 Sep.One-way flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 23 Sep, arriving in Dublin.Price includes taxes and charges.From £57, select.

Dublin.£91 per passenger.Departing Tue, 28 Jul.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from London Heathrow on Tue, 28 Jul, arriving in Dublin.Price includes taxes and charges.From £91, select.

Find the cheapest month to fly from London Heathrow to Dublin from £52 one-way

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Dublin flights are currently cheapest in May.

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Direct flights from London Heathrow to Dublin

London Heathrow to Dublin: Alternative routes

Compare routes from London Heathrow to Dublin below. You may find an airport to fly into that's cheaper, faster, or easier than Dublin.

Dublin

6 miles from central Dublin

ClosestCheapest

from £52

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London to Dublin: Flight information

The things to know before you go.

Cheapest flight found	£52
Cheapest month to fly	June
Average flight time	1 hr, 27 mins
Most popular airline	Qatar Airways
Average flights per week	709

Finding cheap flights from London Heathrow to Dublin: Frequently asked questions

How much are return flights from London Heathrow to Dublin?

The best price we found for a return flight from London Heathrow to Dublin is £71. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from London Heathrow to Dublin?

1 hour and 27 minutes is the average flight time from London Heathrow to Dublin.

Which airlines fly direct from London Heathrow to Dublin?

Qatar Airways, British Airways and Aer Lingus fly direct from London Heathrow to Dublin.

How many flights are there a week from London Heathrow to Dublin?

As of July 2026, there are 709 flights per week flying from London Heathrow to Dublin.

When is the cheapest time to fly from London Heathrow to Dublin?

The cheapest month to fly from London Heathrow to Dublin is usually October.

Which upcoming date is cheapest to fly from London Heathrow Airport to Dublin Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Dublin Airport on Thursday, 29 October 2026.

Can I get a direct flight from London Heathrow Airport to Dublin Airport?

Yes – the average flight time is 1 hour and 27 minutes.

How can I find the best flight deal to Dublin?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Dublin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Dublin?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Dublin is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from London Heathrow Airport to Dublin with?

Currently, British Airways offers the cheapest flight tickets to Dublin.

Travelling from London Heathrow Airport (LHR) to Dublin Airport (DUB): what you need to know

Around 1 hour 25 minutes is how long you can expect to be in the air on a direct flight from London Heathrow Airport to Dublin Airport.
London and Dublin are in the UTC+0 timezone. That means you won't have to adjust your watch after you land.
You can choose from 121 weekly London Heathrow Airport to Dublin Airport flights. The 06:15 departure with British Airways is the earliest flight available. Aer Lingus operates the latest service of the day at 22:00.
To ensure you catch your LHR to DUB flight, leave plenty of time for things like baggage drop and finding your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.
Flying during a peak month like July? Public holidays and other popular periods can mean longer lines at airport checkpoints. Be extra cautious and get there up to four hours ahead of international flights and two hours before a domestic departure.
Getting to Dublin (and then exploring more of Ireland!) is a snap with Aer Lingus. This popular airline has direct flights from London Heathrow Airport to Dublin Airport.
The majority of travellers choose to travel with Aer Lingus on this route.
The most punctual carrier offering LHR to DUB flights is British Airways. Its services land without delay 78.6% of the time.
Consider adding a stopover when booking your ticket from London Heathrow Airport to Dublin Airport. Simply uncheck 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here are some options between LHR and DUB:
- Manchester Airport
- Brussels International Airport
- Edinburgh Airport

How to find the cheapest flights from London Heathrow Airport (LHR) to Dublin Airport (DUB)

£52 is the best price for a one-way London Heathrow Airport to Dublin Airport flight. A return flight starts from £71. These prices may change based on demand.
To score cheap tickets from LHR to DUB, reserve your trip five months ahead of your planned departure.
The cheapest month for flights from London Heathrow Airport to Dublin Airport is October. Use the 'Whole month' tool to find the lowest prices if you have flexible travel dates.
Picking up cheap flights from LHR to DUB is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as a lower fare pops up.
Select your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from London Heathrow Airport to Dublin Airport.

Handy information about London Heathrow Airport (LHR)

Of all flights departing from London Heathrow Airport, 78% land on time at their destination.
To reach London Heathrow Airport from central London, it takes around 45 minutes if you're travelling by car. This depends on traffic, however. It's approximately 24 kms (15 miles) from the airport to the city centre.
Planning to take public transport? You can expect a journey time of around 25 minutes.
Catching an early flight from London Heathrow Airport to Dublin Airport? Avoid rushing to the airport (and sneak in some extra precious sleep) by choosing one of these stays near LHR:

Arriving at Dublin Airport (DUB)

If you're coming in on a late London Heathrow Airport to Dublin Airport flight, few things top the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and resting not long after at one of these hotels near DUB:
Travel at your own speed with a Dublin Airport rental car. Pick up a set of wheels from Easirent, Budget or Carhire and find adventure across Dublin and beyond.
To lock in the lowest price, book your ride from Dublin Airport about two weeks before your trip.

Getting from Dublin Airport (DUB) to central Dublin

From Dublin Airport, Dublin is approximately 11 kms (7 miles) away. It takes around 25 minutes to reach the centre by car.
It typically takes 30 minutes if you're travelling by public transport.

When to fly to Dublin Airport (DUB)

It's time to plan your trip dates for your flight from London Heathrow Airport to Dublin Airport. July is the busiest month to visit Dublin. If you prefer a more low-key vibe, go in March.
Book your flight from London Heathrow Airport to Dublin Airport for July if you want to go to Dublin during its warmest month. Expect temperatures of between 10ºC and 19ºC.
January sees average temperatures of between 2ºC and 9ºC. Search for cheap tickets from LHR to DUB sometime then if you like cooler conditions.

Explore more of Ireland

Cork is just one of the many places in Ireland waiting to be explored once you've seen the sights of Dublin. Around 225 kms (140 miles) away to the south-west, check out popular attractions including Blarney Castle & Gardens, Blarney Castle House(Teach Caisleán na Blarnan) and Blarney Stone.