Cheap Flights from London Heathrow to Dublin from $165

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Flight deals from London Heathrow Airport to Dublin Airport

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 $175. Find the lowest prices on one-way and return tickets right here.

Is this a good flight price? We’ll tell you.We compare today’s London Heathrow Airport to Dublin Airport prices with what travellers usually pay, so you can see if now’s a good time to book, or if it’s worth waiting.

Dublin.$165 per passenger.Departing Thu, 7 May, returning Tue, 12 May.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 7 May, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Tue, 12 May, arriving in London Heathrow.Price includes taxes and charges.From $165, select.

Dublin.$167 per passenger.Departing Sat, 21 Mar, returning Sat, 28 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sat, 21 Mar, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Sat, 28 Mar, arriving in London Heathrow.Price includes taxes and charges.From $167, select.

Dublin.$171 per passenger.Departing Tue, 4 Aug, returning Tue, 4 Aug.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 4 Aug, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Tue, 4 Aug, arriving in London Heathrow.Price includes taxes and charges.From $171, select.

Dublin.$171 per passenger.Departing Sat, 29 Aug, returning Wed, 2 Sep.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sat, 29 Aug, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Wed, 2 Sep, arriving in London Heathrow.Price includes taxes and charges.From $171, select.

Dublin.$171 per passenger.Departing Thu, 16 Jul, returning Wed, 22 Jul.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 16 Jul, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Wed, 22 Jul, arriving in London Heathrow.Price includes taxes and charges.From $171, select.

Dublin.$172 per passenger.Departing Wed, 29 Jul, returning Tue, 4 Aug.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 29 Jul, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Tue, 4 Aug, arriving in London Heathrow.Price includes taxes and charges.From $172, select.

Dublin.$173 per passenger.Departing Thu, 14 Jan, returning Thu, 21 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 14 Jan, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Thu, 21 Jan, arriving in London Heathrow.Price includes taxes and charges.From $173, select.

Dublin.$173 per passenger.Departing Mon, 28 Sep, returning Tue, 19 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Mon, 28 Sep, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Tue, 19 Jan, arriving in London Heathrow.Price includes taxes and charges.From $173, select.

Dublin.$173 per passenger.Departing Wed, 2 Sep, returning Wed, 16 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 2 Sep, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Wed, 16 Dec, arriving in London Heathrow.Price includes taxes and charges.From $173, select.

Dublin.$173 per passenger.Departing Thu, 10 Dec, returning Mon, 14 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 10 Dec, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Mon, 14 Dec, arriving in London Heathrow.Price includes taxes and charges.From $173, select.

Dublin.$174 per passenger.Departing Wed, 26 Aug, returning Sat, 12 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 26 Aug, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Sat, 12 Dec, arriving in London Heathrow.Price includes taxes and charges.From $174, select.

Dublin.$175 per passenger.Departing Wed, 25 Nov, returning Wed, 27 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 25 Nov, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Wed, 27 Jan, arriving in London Heathrow.Price includes taxes and charges.From $175, select.

Dublin.$175 per passenger.Departing Thu, 1 Oct, returning Tue, 1 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 1 Oct, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Tue, 1 Dec, arriving in London Heathrow.Price includes taxes and charges.From $175, select.

Dublin.$175 per passenger.Departing Fri, 17 Apr, returning Fri, 24 Apr.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Fri, 17 Apr, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Fri, 24 Apr, arriving in London Heathrow.Price includes taxes and charges.From $175, select.

Dublin.$175 per passenger.Departing Mon, 30 Mar, returning Tue, 14 Apr.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Mon, 30 Mar, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Tue, 14 Apr, arriving in London Heathrow.Price includes taxes and charges.From $175, select.

Dublin.$175 per passenger.Departing Sat, 30 Jan, returning Sat, 6 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sat, 30 Jan, arriving in Dublin.Inbound direct flight with British Airways departs from Dublin on Sat, 6 Feb, arriving in London Heathrow.Price includes taxes and charges.From $175, select.

Find the cheapest month to fly from London Heathrow to Dublin

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

10km from central Dublin

ClosestCheapest

from $166

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London to Dublin: Flight information

The things to know before you go.

Cheapest flight found	$165
Cheapest month to fly	May
Average flight time	1 hr, 27 mins
Most popular airline	British Airways
Average flights per week	583

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 $165. 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?

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

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

As of March 2026, there are 583 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 May.

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, 7 May 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.

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

Book a direct flight from London Heathrow Airport to Dublin Airport and you'll be travelling for an average of 1 hour 25 minutes.
London and Dublin are in the same timezone, UTC+0.
Every week, there are 875 London Heathrow Airport to Dublin Airport flights. To jet off as soon as possible, opt for the 06:45 British Airways flight. If you'd rather make the most of your time before you fly, the last departure is at 22:25 with Aer Lingus.
For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your LHR to DUB flight.
During popular months such as July, it's best to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead for an international flight whenever you're flying during peak periods in general.
British Airways is your ticket to exploring Dublin (and maybe even some other exciting parts of Ireland!). Check out the direct flights from London Heathrow Airport to Dublin Airport offered by this airline.
The airline that tops the list for bookings on this route is British Airways.
British Airways is the most punctual carrier offering LHR to DUB flights.
If you want to add a stop to your trip, just deselect 'Direct flights only' when searching for your ticket from London Heathrow Airport to Dublin Airport. Here are the top stopovers between LHR and DUB:
- Edinburgh Airport
- Glasgow International Airport
- Manchester Airport

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

$104 is the best price for a one-way London Heathrow Airport to Dublin Airport flight. A return flight starts at $165. These prices can change based on demand and availability.
Book 11 months before your departure date. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from LHR to DUB.
The cheapest month for flights from London Heathrow Airport to Dublin Airport is October. Use the 'Whole month' tool to find the lowest airfares if you have a flexible schedule.
You won't have to check every day to find out if fares have gone down when you set up a Price Alert. We'll notify you the moment the price changes on cheap flights from LHR to DUB.
Secure the ideal flight for you by using the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from London Heathrow Airport to Dublin Airport, use the 'Sort by' function. You can also filter by airline, departure and arrival times, and number of stops.

Handy information about London Heathrow Airport (LHR)

Of the departures from London Heathrow Airport, 68.18% touch down on time at their destination.
London Heathrow Airport is around 31 kilometres from central London. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 55 minutes or so to arrive, depending on the traffic.
The journey on public transport takes roughly 1 hour.
Get your holiday off to a relaxed start by staying near LHR. Whether you're taking an early flight from London Heathrow Airport to Dublin Airport or want to avoid feeling rushed, these stays are perfect:

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 being close to the terminal. Grab your suitcases from the carousel and then be tucked up in bed soon after at one of these accommodation options near DUB:
Fast-track your adventure by picking up a Dublin Airport rental car. Grab your wheels from Easirent, Budget or Carhire and explore beyond Dublin's usual tourist stops.
Reserving your ride from Dublin Airport about two weeks in advance gives you the best chance of locking in a great deal.

Getting from Dublin Airport (DUB) to central Dublin

Dublin Airport is approximately 21 kilometres from the centre of Dublin. Driving there takes about 30 minutes.
It typically takes 2 hours 10 minutes when travelling by public transport.

When to fly to Dublin Airport (DUB)

The quietest month for a flight from London Heathrow Airport to Dublin Airport is January, while August is the busiest. Pick the best time to go to Dublin based on whether you prefer a laid-back vibe or a more bustling atmosphere.
The warmest month in Dublin is July, with temperatures ranging between 10ºC and 20ºC. Book your flights from London Heathrow Airport to Dublin Airport in this month if you like this kind of weather.
If you want cooler conditions, look for a cheap ticket from LHR to DUB in January. Average temperatures are between 1ºC and 9ºC then.

Explore more of Ireland

Cork is just one of the many cities in Ireland waiting to be discovered once you've seen the sights of Dublin. Around 225 kilometres away to the south-west, well-known attractions include Blarney Castle, Fota Wildlife Park and Titanic Experience Cobh.
If you're looking to explore another major stop in Ireland, head for Tallaght, roughly 10 kilometres south-west of Dublin. Church of the Incarnation, Fettercairn, 3 stuffed bears and Johnson & Perrott Fleet are key reasons to visit.