Aer Lingus flights from London Heathrow Airport to Dublin (LHR - DUB)
Cheapflights users flying from London to Dublin on Aer Lingus typically fly into Dublin and depart from London Heathrow. Select your dates above for pricing.
Aer Lingus flights from Heathrow to Dublin in 2025
Find detailed information about Aer Lingus flights from Heathrow to Dublin. Explore the options provided by Aer Lingus to plan your journey from Heathrow to Dublin. Data last updated 8 May 2025.
Travel insights for Aer Lingus flights from Heathrow to Dublin
Get recent, data-driven insights about Aer Lingus flights from Heathrow to Dublin including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from London Heathrow Airport to Dublin with Aer Lingus?
Use this chart to determine the optimal time to book a return flight from Heathrow to Dublin. Price data was last updated on 2 May 2025.
Booking with Aer Lingus 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Dublin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London Heathrow Airport to Dublin with Aer Lingus?
Currently, the most affordable month to book a Aer Lingus flight from London Heathrow Airport to Dublin in February, with an average price of R2 006. Conversely, traveling with Aer Lingus from London Heathrow Airport to Dublin in December will be the most expensive, with an average cost of R2 827. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
Weekly Aer Lingus flight availability from London Heathrow Airport to Dublin
The most Aer Lingus flights from LHR to DUB are scheduled on a Wednesday (15 on average). You will have fewer Aer Lingus flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).
Rainfall in Dublin by month
Plan your trip to Dublin by taking into account the average rainfall totals by month.
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.
Temperature in Dublin by month
Plan your trip to Dublin by taking into account the average temperature totals by month.
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).
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.
Browse thousands of different options on Cheapflights for your next trip
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Complete your trip
Complete your trip to Dublin by adding a car hire and/or hotel booking to your travel itinerary.
See what others are saying about Aer Lingus
Read reviews and see what other travellers are saying about their experiences with Aer Lingus. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Aer Lingus for your next flight. Reviews last updated 8 May 2025.
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