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Not ready to book? to track prices.Find the cheapest flights from Dublin to London
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Aer Lingus flights from Dublin to London Heathrow Airport
Our best Aer Lingus deals on Dublin to London Heathrow Airport flight tickets
British Airways flights from Dublin to London Heathrow Airport
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How to get the cheapest flight ticket from Dublin to London Heathrow Airport
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 cheapest month to fly to London Heathrow Airport?
The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Dublin, with most prices found around $199. If you aren’t able to travel during the month of January, then book flights to London Heathrow Airport from Dublin during September instead. Flights to London Heathrow Airport in September, while not as cheap as those in January, still average around $205.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,069. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Dublin to London Heathrow Airport for around $2,245.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
In the evening is the cheapest time of day to fly from Dublin to London Heathrow Airport when you can find flight prices for as low as $288. Flying to London Heathrow Airport in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to London Heathrow Airport is in the afternoon when prices are around $2,233.
What is the cheapest Dublin to London Heathrow flight route?
Fly from Dublin to London Heathrow for the best Dublin - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from Dublin when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $237 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Dublin for as low as $137 on momondo.
What cabin class options are available on Dublin to London Heathrow flights?
There are 3 cabin classes available to choose from on Dublin to London Heathrow 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 Dublin to London Heathrow Airport on average per day?
As of March 2025, 28 flights take off from Dublin and land in London Heathrow Airport each day. The most common flight departure time for this route is 08:00, with 43% of daily flights taking off at midday.
How many flights depart from Dublin to London Heathrow Airport on average per week?
198 flights are operational weekly from Dublin to London Heathrow Airport as of March 2025. The most popular departure day for this route is Fri, with 37% of flights per week taking off on this day.
When to book flights from Dublin to London Heathrow Airport
Cheap Dublin to London Heathrow Airport (DUB to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Dublin to London Heathrow Airport
How far is Dublin to London Heathrow by plane?
The distance between Dublin and London Heathrow is about 445.0 km. In terms of flight time, this usually takes a little over 1h 20m.
When did momondo last update prices for flights from Dublin Airport to London Heathrow Airport?
Prices for flights from Dublin Airport to London Heathrow Airport are refreshed on a daily basis.
How old do you have to be to fly from Dublin Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Dublin Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Dublin to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Dublin to London Heathrow Airport is Airbus A321neo (17.50% of total bookings). The next most popular plane models are Airbus A320neo (15.34%), Airbus A330-300 (10.43%), and Airbus A320-100/200 (9.09%).
Travelling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Dublin to London?
Finding the right flight to London from Dublin 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 London quick and easy, saving you time and money.
Can I find flights from Dublin to London with flexible booking policies on momondo?
Yes. All flights to London from Dublin on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Dublin to London?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Dublin.
I’m not ready to book a flight from Dublin to London right now. Can momondo alert me if prices change?
Price alerts on flights to London from Dublin are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.