Question 1

What is the cheapest airline to fly from London Heathrow Airport to Dublin round-trip?

Accepted Answer

Our cheapest airline available from London Heathrow Airport to Dublin is British Airways. Our recent data shows that you can find tickets from as low as £72 on this airline. British Airways is currently priced 41% below the average price you’ll pay for this route.

Question 2

What are the cheapest airlines to fly from London Heathrow Airport to Dublin one-way?

Accepted Answer

One-way options have recently been found by users for as low as £40 on British Airways. Other airlines that offer cheap prices include Aer Lingus from £70 and Vueling from £79 one-way.

Question 3

How far ahead should I book a flight from London Heathrow Airport to Dublin?

Accepted Answer

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Dublin, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 4

What is the cheapest month to book a flight from London Heathrow Airport to Dublin?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of £71). Flying from London Heathrow Airport to Dublin in August is currently the most expensive (average of £93). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 5

What is the cheapest day to fly from London Heathrow Airport to Dublin?

Accepted Answer

Travellers seeking maximum savings on their London Heathrow Airport to Dublin flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from London Heathrow Airport to Dublin

Accepted Answer

The most flights from LHR to DUB are scheduled on a Friday (69 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (33 on average).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Dublin ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Dublin when rainfall is around 49.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Dublin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Question 9

What are the cheapest flights from London Heathrow Airport to Dublin?

Accepted Answer

Looking at all options, your cheapest flight can be booked for £78. While the most popular route (London Heathrow - Dublin) can be booked for £72 on average our data indicates £1,149 when flying from London Heathrow Airport to Dublin.

Question 10

What are the most reliable airlines from London Heathrow Airport to Dublin?

Accepted Answer

Before booking your flight to Dublin from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (100%), Aer Lingus (88%), British Airways( 88%).

Question 11

What are the most popular airlines that fly from London Heathrow Airport to Dublin?

Accepted Answer

British Airways, Aer Lingus and Ryanair are the most popular airlines when flying from London Heathrow Airport to Dublin.

Question 12

What is the cheapest day to fly round-trip from London Heathrow Airport to Dublin?

Accepted Answer

It’s generally more expensive to depart on a Thursday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

Question 13

How far in advance should I book a flight from London Heathrow Airport to Dublin?

Accepted Answer

Find a great deal and save up to 156% by booking at least 28 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Dublin within the next two weeks, with the cheapest ticket starting at £75.

Question 14

What is the cheapest month to fly from London Heathrow Airport to Dublin?

Accepted Answer

The best pricing can be found in the month of January. Prices to Dublin from London Heathrow Airport average £66. You can even find prices in January for less than £66, as users have found deals to Dublin from as low as £25. The month of December appears to be one of the more expensive times to travel to Dublin from London Heathrow Airport. Flying in the targeted month can save you up to 57%.

Question 15

What is the cheapest time of day to fly from LHR to DUB?

Accepted Answer

It’s optimal to fly from London Heathrow Airport to Dublin in the afternoon. By choosing this option you can save up to 74% on the cost of your flight, compared to a flight in the morning.

Question 16

What airport do you fly into for flights to Dublin from London Heathrow?

Accepted Answer

If you book a flight to Dublin from London Heathrow, you will be flying to Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 50 flights from London Heathrow to Dublin per day from 4 different airlines.

Question 17

Can I find deals for flights from Heathrow to Dublin that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Heathrow to Dublin flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 18

How can I find direct flights from Heathrow to Dublin?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Dublin.

Question 19

Can I find deals for business class flights from Heathrow to Dublin?

Accepted Answer

Yes. Cheapflights offers flight deals from Heathrow to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 20

How does Cheapflights help users find flights from Heathrow to Dublin?

Accepted Answer

Cheapflights helps you search for flights from Heathrow to Dublin via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 21

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Dublin?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Dublin for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 22

Can Cheapflights find flights from Heathrow to Dublin with no change fees?

Accepted Answer

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Dublin, users can toggle the no change fees filter when performing a flight search.

Question 23

Can Cheapflights notify me if prices for flights from Heathrow to Dublin become cheaper?

Accepted Answer

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

Round-trip from	£72
One-way from	£40
Popular in	June
Cheapest in	January
Average price	£137
Good round-trip deal	£179 or less
Good one-way deal	£203 or less

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£23	Average£56	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
British Airways	Cheapest£64	Average£108	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	Cheapest£97	Average£141	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
KLM	Cheapest£135	Average£168	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Cheap flights from London Heathrow Airport to Dublin from £40

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or September, booked 69 days in advance, depart on a Friday or Saturday and return on a Friday

Cheap flight deals from Heathrow to Dublin

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Find flight deals from Heathrow to Dublin

Cheapest flights from Heathrow to DublinExplore the most affordable flight options available from Heathrow to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 heinäkuu 2025.

Explore the most affordable flight options available from Heathrow to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 heinäkuu 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Dublin that are best for you.

Best time to book a flight from Heathrow to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Dublin

How far ahead should I book a flight from London Heathrow Airport to Dublin?

Use this chart to determine the optimal time to book a return flight from Heathrow to Dublin. Price data was last updated on 11 July 2025.

What is the cheapest month to book a flight from London Heathrow Airport to Dublin?

What is the cheapest time of day to fly from LHR to DUB?

Find hourly flight availability from Heathrow to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 heinäkuu 2025.

What is the cheapest day to fly from London Heathrow Airport to Dublin?

Use this chart to determine the cheapest time to fly return from Heathrow to Dublin. Price data was last updated on 13 July 2025.

Weekly flight availability from London Heathrow Airport to Dublin

Explore weekly flight availability from Heathrow to Dublin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 heinäkuu 2025.

How much does it cost for a return flight from London Heathrow Airport to Dublin?

Reviews of airlines servicing Dublin

Check out reviews from past customers who have flown with Vueling, Aer Lingus, andBritish Airways from London Heathrow Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Dublin from London Heathrow?

What is the cheapest airline to fly from London Heathrow Airport to Dublin round-trip?

What are the cheapest airlines to fly from London Heathrow Airport to Dublin one-way?

What are the most reliable airlines from London Heathrow Airport to Dublin?

What are the cheapest flights from London Heathrow Airport to Dublin?

Can I find deals for flights from Heathrow to Dublin that include hotel bookings?

How can I find direct flights from Heathrow to Dublin?

Can I find deals for business class flights from Heathrow to Dublin?

What is the cheapest month to book a flight from London Heathrow Airport to Dublin?

Travelling to a place near Dublin?

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Dublin on these airlines

Choose from the following airlines for your flight from Heathrow to Dublin. Flights are based on user searches made on Cheapflights and were last updated on 18 heinäkuu 2025.

Top 4 airlines flying from Heathrow to Dublin

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How does Cheapflights help users find flights from Heathrow to Dublin?

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Dublin?

Can Cheapflights find flights from Heathrow to Dublin with no change fees?

Can Cheapflights notify me if prices for flights from Heathrow to Dublin become cheaper?

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Cheapest flights from Heathrow to Dublin
Explore the most affordable flight options available from Heathrow to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 heinäkuu 2025.