Cheap flights from London Heathrow Airport to Dublin from $100
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Dublin departing on 31/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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British Airways flights from London Heathrow Airport to Dublin
Our best British Airways deals on London Heathrow Airport to Dublin flight tickets
Aer Lingus flights from London Heathrow Airport to Dublin
Our best Aer Lingus deals on London Heathrow Airport to Dublin flight tickets
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How to get the cheapest flight ticket from London Heathrow Airport to Dublin
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between London Heathrow Airport and Dublin?
What is the cheapest month to fly to Dublin?
The month of January is, on average, the cheapest month to fly to Dublin from London Heathrow Airport, with most prices found around $213. If you are unable to visit Dublin during the month of January, then departing from London Heathrow Airport during the month September is also very affordable. Most momondo users find prices during this month for around $216.
What is the cheapest day to depart on your flight to Dublin?
The cheapest day to depart from London Heathrow Airport to Dublin is on a Saturday. Travellers who choose to depart for Dublin on a Saturday will often find tickets for as low as $135. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Dublin for around $200.
What is the cheapest time of day to depart on your flight to Dublin?
In the morning is the cheapest time of day to fly from London Heathrow Airport to Dublin when you can find flight prices for as low as $152. Flying to Dublin in the morning is an ideal time because this is during off-peak travel hours. Flights to Dublin are more costly at midday, with an average ticket price of $202. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest London Heathrow to Dublin flight route?
Fly from London Heathrow to Dublin for the best London Heathrow - Dublin flight prices
How far in advance should I book a flight to Dublin?
You are more likely to see cheaper flights to Dublin from London Heathrow Airport when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $243 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from London Heathrow Airport for as low as $180 on momondo.
What cabin class options are available on London Heathrow to Dublin flights?
There are 3 cabin classes available to choose from on London Heathrow to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from London Heathrow Airport to Dublin on average per day?
As of June 2025, 57 flights take off from London Heathrow Airport and land in Dublin each day. The most common flight departure time for this route is 08:00, with 41% of daily flights taking off at midday.
How many flights depart from London Heathrow Airport to Dublin on average per week?
405 flights are operational weekly from London Heathrow Airport to Dublin as of June 2025. The most popular departure day for this route is Fri, with 18% of flights per week taking off on this day.
When to book flights from London Heathrow Airport to Dublin
Cheap London Heathrow Airport to Dublin (LHR to DUB) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Dublin
How far is London Heathrow to Dublin by plane?
London Heathrow and Dublin are 445.0 km apart from one another. In terms of flight time, this usually takes a little over 1h 10m.
When did momondo last update prices for flights from London Heathrow Airport to Dublin Airport?
Prices for flights from London Heathrow Airport to Dublin Airport refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Dublin Airport?
As of June 2025, there are 2 operators available to choose from for flights from London Heathrow Airport to Dublin Airport.
How old do you have to be to fly from London Heathrow Airport to Dublin Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Dublin Airport.
What documentation or ID do you need to fly to Dublin Airport?
The travel and health documents required for your trip to Dublin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Dublin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London Heathrow Airport to Dublin?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Dublin is Boeing 787-9 Dreamliner, representing 11.46% of all bookings. The subsequent popular models are Airbus A320neo at 9.38%, Boeing 777-300ER at 9.30%, and Boeing 777 at 8.70%.
What is the most popular airline from London Heathrow Airport to Dublin?
Based on momondo bookings for flights between London Heathrow Airport and Dublin, the leading airline is British Airways, making up 65% of the total bookings. Other popular airlines include Aer Lingus with 35%.
Best airlines flying from London Heathrow Airport to Dublin
Compare and see reviews for airlines that fly from London Heathrow Airport to Dublin with momondo
| Airline | Rating | Free cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $110 | Free cancellation | Rating 6.6 6,998 reviews | |||
| PriceFrom $200 | Free cancellation | Rating 7.1 1,115 reviews |
Aer Lingus Flights From London Heathrow Airport to Dublin
Aer Lingus flight deals from London Heathrow Airport to Dublin start from $130 round-trip. Over the 105 Aer Lingus flights for this route in a normal week, average airfare is usually $159 round-trip - but some users have found much cheaper deals with momondo.
British Airways Flights From London Heathrow Airport to Dublin
British Airways (6.6/10 from 6,998 reviews) operates around 102 flights from London Heathrow Airport to Dublin in any given week. The average British Airways airfare for this route is around $114, with deals from around $72 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to Dublin flight searches in the last 72 hours.
Travelling to a place near Dublin?
Book flights to Dublin if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to Dublin?
Finding the right flight to Dublin from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dublin quick and easy, saving you time and money.
Can I find flights from London to Dublin with flexible booking policies on momondo?
All flight searches from London to Dublin on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from London to Dublin?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Dublin.
I’m not ready to book a flight from London to Dublin right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of London to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.