C$118 Cheap Flights from London Heathrow to Dublin

Q: How much are round-trip flights from London Heathrow to Dublin?

The best price we found for a round-trip flight from London Heathrow to Dublin is C$118. 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.

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

1 hour and 25 minutes is the average flight time from London Heathrow to Dublin.

Q: Which airlines fly direct from London Heathrow to Dublin?

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

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

There are 549 flights per week flying from London Heathrow to Dublin, as of March 2025.

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

The cheapest month to fly from London Heathrow to Dublin is usually March 2025.

Q: 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 Monday, January 5, 2026 .

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

Yes – the average flight time is 1 hour and 25 minutes.

Q: 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.

Q: 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.

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

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

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 Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from London Heathrow to Dublin

Looking for a cheap last-minute deal or the best round-trip flight from London Heathrow to Dublin? Find the lowest prices on one-way and round-trip tickets right here.

Dublin.C$118 per passenger.Departing Mon, Jan 5, returning Mon, Jan 26.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from London Heathrow on Mon, Jan 5, arriving in Dublin.Inbound direct flight with British Airways departing from Dublin on Mon, Jan 26, arriving in London Heathrow.Price includes taxes and charges.From C$118, select.

Dublin.C$125 per passenger.Departing Wed, Jan 28, returning Tue, Feb 3.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from London Heathrow on Wed, Jan 28, arriving in Dublin.Inbound direct flight with British Airways departing from Dublin on Tue, Feb 3, arriving in London Heathrow.Price includes taxes and charges.From C$125, select.

Dublin.C$125 per passenger.Departing Tue, Dec 9, returning Tue, Jan 13.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from London Heathrow on Tue, Dec 9, arriving in Dublin.Inbound direct flight with British Airways departing from Dublin on Tue, Jan 13, arriving in London Heathrow.Price includes taxes and charges.From C$125, select.

Dublin.C$125 per passenger.Departing Wed, Feb 4, returning Tue, Feb 10.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from London Heathrow on Wed, Feb 4, arriving in Dublin.Inbound direct flight with British Airways departing from Dublin on Tue, Feb 10, arriving in London Heathrow.Price includes taxes and charges.From C$125, select.

Dublin.C$126 per passenger.Departing Wed, Dec 10, returning Wed, Dec 10.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from London Heathrow on Wed, Dec 10, arriving in Dublin.Inbound direct flight with British Airways departing from Dublin on Wed, Dec 10, arriving in London Heathrow.Price includes taxes and charges.From C$126, select.

Dublin.C$126 per passenger.Departing Mon, Sep 29, returning Wed, Nov 5.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from London Heathrow on Mon, Sep 29, arriving in Dublin.Inbound direct flight with British Airways departing from Dublin on Wed, Nov 5, arriving in London Heathrow.Price includes taxes and charges.From C$126, select.

Dublin.C$127 per passenger.Departing Mon, Nov 17, returning Mon, Jan 19.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from London Heathrow on Mon, Nov 17, arriving in Dublin.Inbound direct flight with British Airways departing from Dublin on Mon, Jan 19, arriving in London Heathrow.Price includes taxes and charges.From C$127, select.

Dublin.C$127 per passenger.Departing Tue, Nov 4, returning Wed, Nov 5.Round-trip flight with British Airways.Outbound direct flight with British Airways departing from London Heathrow on Tue, Nov 4, arriving in Dublin.Inbound direct flight with British Airways departing from Dublin on Wed, Nov 5, arriving in London Heathrow.Price includes taxes and charges.From C$127, 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 January.

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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.

London to Dublin: Flight information

The things to know before you go.

Cheapest flight found	C$118
Cheapest month to fly	January
Average flight time	1 hr, 25 mins
Most popular airline	Aer Lingus
Average flights per week	549

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

How much are round-trip flights from London Heathrow to Dublin?

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

Which airlines fly direct from London Heathrow to Dublin?

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

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

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

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

How can I find the best flight deal to Dublin?

When is the best time to book flights to Dublin?

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

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

Expect to be in the air for around 1 hour 23 minutes. That's the average time for a direct flight from London Heathrow Airport to Dublin Airport. London and Dublin are in the same timezone — UTC+0.
Each week, there are 875 flights from London Heathrow Airport to Dublin Airport. To jet off as soon as possible, opt for the 06:30 Aer Lingus flight. If you're keen to make the most of your day before you fly, the last departure from LHR to DUB is 22:25 with Aer Lingus.
You can expect bigger queues in popular months like July and other peak periods. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a good idea.
Aer Lingus runs direct flights from London Heathrow Airport to Dublin Airport. Book with this popular airline, then get ready to check out the sights in Dublin — plus maybe even more of Ireland if time allows.
If you prefer a stopover for your flight from London Heathrow Airport to Dublin Airport, just uncheck 'Direct flights only' and look through your options. Here are the most popular stopovers between LHR and DUB:
- Glasgow International Airport
- Manchester Airport
- Brussels Airport
Before reserving your cheap ticket from LHR to DUB, check whether you need a visa to enter Ireland. Visa and travel document requirements may differ and are updated frequently. For the most up-to-date information, get in touch with the nearest embassy or consulate of the country you're traveling to.

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

The best price we've found for a one-way ticket from London Heathrow Airport to Dublin Airport is C$77. The cheapest price for a return flight is C$118. Bear in mind that fares may change due to demand at the time of booking.
Score cheap flight tickets from LHR to DUB by booking 2 months ahead. According to our research, that's the sweet spot for landing a bargain.
Schedule your trip for October. That's the cheapest month for flight tickets from London Heathrow Airport to Dublin Airport. If you have flexibility with your dates, use the 'Whole month' tool to find the lowest airfare across each month.
Create a Price Alert for cheap flight tickets from LHR to DUB. You don't need to check back in every day to see whether prices have dropped. We'll notify you when the price changes.
Use filters to tailor your flights from London Heathrow Airport to Dublin Airport. Enter your preferred departure and arrival times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to get the best deals.

Handy information about London Heathrow Airport (LHR)

Located around 31 kilometres from central London, London Heathrow Airport can be reached in about 57 minutes by car (depending on traffic). The ride on public transport will take roughly 1 hour and 1 minute.
Looking for a handy hotel near LHR? If you're boarding an early flight from London Heathrow Airport to Dublin Airport, these stays will have you moments from your departure gate:

Arriving at Dublin Airport (DUB)

The last thing you want is a lengthy journey to your hotel if you're arriving on a late flight from London Heathrow Airport to Dublin Airport. Stay at one of these accommodation options near DUB instead:

Getting from Dublin Airport (DUB) to central Dublin

Dublin Airport is approximately 21 kilometres from the center of Dublin. With a car rental or if you're catching a cab, the drive is around 29 minutes.
When traveling by public transport, expect a journey of about 2 hours and 9 minutes.

When to fly to Dublin Airport (DUB)

The quietest month for a flight from London Heathrow Airport to Dublin Airport is February, while August is the busiest. Pick the ideal time to go to Dublin based on whether you prefer a bustling atmosphere or a more laid-back vibe.
Lock in your flight from London Heathrow Airport to Dublin Airport for July if you'd like to explore Dublin during its warmest month. You can expect temperatures of between 10ºC and 20ºC.
Look for cheap flight tickets from LHR to DUB in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 1ºC and 9ºC on average.

More about Dublin

Start your Dublin trip right by finding the perfect place to stay. As soon as you've booked your flight from LHR to DUB, have a look at our range of hotel options including:
Guinness Storehouse and Trinity College Library are a couple of big attractions to put on your Dublin itinerary. Continue your sightseeing adventures at Dublin Castle.

Complete your Dublin trip with hotels and a car rental

You've locked in your cheap ticket to Dublin Airport — now it's time to find a great stay, and perhaps even a set of wheels. We've compared prices across hundreds of companies to bring you the best hotels and car rental deals in Dublin.