Cheap flights from Dublin to London from $39
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to London departing on 12/3. 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 Dublin to London Heathrow Airport
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Vueling 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 typical price of a round-trip flight between Dublin and London Heathrow Airport?
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 $128. If you’re not able to fly to London Heathrow Airport in January, then September is your next best option. Flight prices from Dublin to London Heathrow Airport during September average around $135.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Thursday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $282. The most expensive day to fly to London Heathrow Airport is Tuesday, with ticket prices averaging around $707.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Dublin to London Heathrow Airport in the evening for as low as $160. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $615.
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 $156 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 $99 on momondo.
What cabin class options are available on Dublin to London Heathrow flights?
There are 4 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?
The number of flights available between Dublin and London Heathrow Airport is 59 per day as of June 2025. The most frequent departure time is 12:00PM, with 46% of daily flights leaving at noon.
How many flights depart from Dublin to London Heathrow Airport on average per week?
As of June 2025, there are 415 flights per week flying from Dublin to London Heathrow Airport. The most common day of the week flights depart is Thu, with 20% of flights 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?
There are 276.5 mi between Dublin and London Heathrow. A reasonable flight in good conditions will take 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 refresh daily.
How many operators does momondo search for flights from Dublin Airport to London Heathrow Airport?
There are 2 operators available for flights from Dublin Airport to London Heathrow Airport as of June 2025.
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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Dublin to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Dublin to London Heathrow Airport is Airbus A321neo, representing 29.61% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 13.71%, Airbus A320neo at 13.43%, and Boeing 737 MAX 8 at 8.94%.
What is the most popular airline from Dublin to London Heathrow Airport?
Based on momondo bookings for flights between Dublin and London Heathrow Airport, the leading airline is British Airways, making up 57% of the total bookings. Other popular airlines include Aer Lingus with 43%.
Best airlines flying from Dublin to London Heathrow Airport
Compare and see reviews for airlines that fly from Dublin to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $89 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $116 | Free Cancellation | Rating 7.1 1,117 reviews |
Aer Lingus Flights From Dublin to London Heathrow Airport
Aer Lingus flight deals from Dublin to London Heathrow Airport start from $116 round-trip. Over the 87 Aer Lingus flights for this route in a normal week, average airfare is usually $178 round-trip - but some users have found much cheaper deals with momondo.
British Airways Flights From Dublin to London Heathrow Airport
Across 7,008 British Airways reviews on momondo, the average score is 6.6/10. British Airways flies from Dublin to London Heathrow Airport about 91 times each week, with ticket deals ranging from $89 to $134. Price data is based on momondo searches in the last 72 hours.
Traveling 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?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Dublin.
Can I find flights from Dublin to London with flexible booking policies on momondo?
momondo does allow users to show only those flights to London from Dublin which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Dublin to London?
Once you have performed a search for Dublin to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Dublin to London right now. Can momondo alert me if prices change?
If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Dublin and alert you when they change.