Cheap flights from Dublin to London Heathrow Airport from €30
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 Heathrow Airport departing on 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Dublin to London
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
KLM flights from Dublin to London Heathrow Airport
Our best KLM deals on Dublin to London Heathrow Airport flight tickets
British Airways flights from Dublin to London Heathrow Airport
Our best British Airways deals on Dublin to London Heathrow Airport flight tickets
See travel insights to London from
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 September is another great option to travel to London Heathrow Airport, with average flight prices from Dublin averaging around €114.
What is the cheapest day to depart on your flight to London Heathrow Airport?
The cheapest day to depart on your flight to London Heathrow Airport is on a Friday when prices can be found for as low as €489. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €659.
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 €156. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €808 on average. Flights to London Heathrow Airport from Dublin in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
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 €133 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 €82 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?
The number of flights available between Dublin and London Heathrow Airport is 62 per day as of April 2025. The most frequent departure time is 12:00, with 45% of daily flights leaving at midday.
How many flights depart from Dublin to London Heathrow Airport on average per week?
The number of flights available between Dublin and London Heathrow Airport is 437 per week as of April 2025. The most frequent departure day is Fri, with 18% of weekly flights leaving 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 straight-line distance from Dublin to London Heathrow is 445.0 km. By plane, this route typically takes 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 were last updated today.
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 April 2025.
How old do you have to be to fly from Dublin Airport to London Heathrow 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 Dublin Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow 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 London Heathrow 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 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 17.46% of all bookings. The subsequent popular models are Airbus A320neo at 15.68%, Airbus A330-300 at 10.35%, and Airbus A320-100/200 at 9.28%.
What is the most popular airline from Dublin to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Dublin to London Heathrow Airport is Aer Lingus (50% of total bookings). The next most popular airline is British Airways (50%).
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 €72 | Free Cancellation | Rating 6.6 6,815 reviews | |||
| PriceFrom €101 | Free Cancellation | Rating 7.0 1,070 reviews |
Aer Lingus Flights From Dublin to London Heathrow Airport
Aer Lingus flight deals from Dublin to London Heathrow Airport start from €115 round-trip. Over the 98 Aer Lingus flights for this route in a normal week, average airfare is usually €172 round-trip - but some users have found much cheaper deals with momondo.
British Airways Flights From Dublin to London Heathrow Airport
Across 6,815 British Airways reviews on momondo, the average score is 6.6/10. British Airways flies from Dublin to London Heathrow Airport about 95 times each week, with ticket deals ranging from €82 to €136. Price data is based on momondo searches in the last 72 hours.
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?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Dublin to London. momondo saves you time and could save you money on your trip.
Can I find flights from Dublin to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from Dublin with this policy.
How can momondo help me find flights from Dublin to London?
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 Dublin to London.
I’m not ready to book a flight from Dublin to London right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Dublin to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.