Cheap flights from London Heathrow Airport to Dublin
LHR — DUB
25 Sep — 2 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or October, booked 79 days in advance, depart on a Friday or Thursday and return on a Wednesday
Find flight deals from Heathrow to Dublin
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 August 2026.
Popular in
July
Cheapest in
January
Average price
₹ 17,346
Good round-trip deal
₹ 16,201 or less
Good one-way deal
₹ 15,770 or less
Highest demand for flights based on searches. 6% potential increase in price (₹ 118,047 potential increase over avg. return price).
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.
LHR-DUB
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Dublin
Prices
Airlines
Delays
How far ahead should I book a flight from London Heathrow Airport to Dublin?
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Dublin, you should look to book at least 78 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.
What is the cheapest month to book a flight from London Heathrow Airport to Dublin?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of ₹ 13,629). Flying from London Heathrow Airport to Dublin in July is currently the most expensive (average of ₹ 18,871). 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.
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 26 August 2026.
Unlike at midday, when flights are generally more expensive, you can save up to 67% on flights from London Heathrow Airport to Dublin by exploring options for tickets in the afternoon.
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 26 August 2026.
The most flights from LHR to DUB are scheduled on a Monday (76 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (40 on average).
How often are flights from London to Dublin delayed?
About 15% of weekly flights between London and Dublin have experienced delays in the past year, with the average delay time being 104 minutes.
What is the most punctual flight time for London to Dublin flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Dublin flights?
Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 14% of flights being delayed.
Reviews of airlines servicing Dublin
Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated 26 August 2026.
Get a feel of what it's like to fly with British Airways from London Heathrow Airport to Dublin by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.
It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.
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?
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 9.2 km from the centre of Dublin. There are 54 flights from London Heathrow to Dublin per day from 1 airline.
What is the cheapest airline to fly from London Heathrow Airport to Dublin round-trip?
Flying on British Airways is currently your cheapest option to Dublin, with prices starting at ₹ 10,342. You may be able to fly from London Heathrow Airport to Dublin for 38% less than the average price by searching for this airline.
What are the most reliable airlines from London Heathrow Airport to Dublin?
Consider Air Canada (87%), Aer Lingus (80%) or Qatar Airways (80%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Dublin.
Can I find deals for flights from Heathrow to Dublin that include hotel bookings?
Yes. In addition to deals on Heathrow to Dublin flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Dublin?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Dublin.
Can I find deals for business class flights from Heathrow to Dublin?
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.
What is the cheapest month to book a flight from London Heathrow Airport to Dublin?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of ₹ 13,629). Flying from London Heathrow Airport to Dublin in July is currently the most expensive (average of ₹ 18,871). 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.
Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 26 August 2026.
Discover the top airline that operate flights from Heathrow to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 26 August 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to Dublin?
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.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Dublin?
Cheapflights helps you find that perfect flight to Dublin from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Heathrow to Dublin with no change fees?
Yes! Cheapflights helps users easily find flights from Heathrow to Dublin with no change fees.
Can Cheapflights notify me if prices for flights from Heathrow to Dublin become cheaper?
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!
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