Q: How much does it cost to fly round-trip from Dublin to London Heathrow Airport?

Airfare is below average for this route at the moment. Dublin to London Heathrow Airport flights typically cost between C$ 174 and C$ 265 in January. The cheapest round-trip price found within the last 3 days was C$ 140 on British Airways (17 Jan-19 Jan).

Question 1

How much does it cost to fly round-trip from Dublin to London Heathrow Airport?

Accepted Answer

Airfare is below average for this route at the moment.Dublin to London Heathrow Airport flights typically cost between C$ 174 and C$ 265 in January.
The cheapest round-trip price found within the last 3 days was C$ 140 on British Airways (17 Jan-19 Jan).

Question 2

What is the cheapest airline to fly from Dublin to London Heathrow Airport round-trip?

Accepted Answer

Our cheapest airline available from Dublin to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as C$ 140 on this airline. This flight start at 35% lower than the current average price 3 months from now.

Question 3

What are the cheapest airlines to fly from Dublin to London Heathrow Airport one-way?

Accepted Answer

For one-way options, check prices for British Airways. According to our data, you can fly for as low as C$ 64. Users have also found prices from C$ 102 and C$ 103 on Aer Lingus and Vueling, respectively.

Question 4

How far ahead should I book a flight from Dublin to London Heathrow Airport?

Accepted Answer

The price you pay for your flight from Dublin to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 48 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 5

What is the cheapest month to book a flight from Dublin to London Heathrow Airport?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of C$ 560). Flying from Dublin to London Heathrow Airport in July is currently the most expensive (average of C$ 857). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 6

What is the cheapest day to fly from Dublin to London Heathrow Airport?

Accepted Answer

Travelers seeking maximum savings on their Dublin to London Heathrow Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

Weekly flight availability from Dublin to London Heathrow Airport

Accepted Answer

The most flights from DUB to LHR are scheduled on a Tuesday (70 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (45 on average).

Question 8

E

Accepted Answer

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Question 9

E

Accepted Answer

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Question 10

What are the cheapest flights from Dublin to London Heathrow Airport?

Accepted Answer

Looking for the cheapest flight from Dublin to London Heathrow Airport? While on average our users pay C$ 734, our data indicates the cheapest price to be C$ 105. The most popular route (Dublin - London Heathrow), is priced around C$ 573.

Question 11

What are the most reliable airlines from Dublin to London Heathrow Airport?

Accepted Answer

Before booking your flight to London Heathrow Airport from Dublin, check out the most reliable airlines to get you to your destination on time: Air Canada (80%), British Airways (77%), Aer Lingus( 76%).

Question 12

What is the cheapest day to fly round-trip from Dublin to London Heathrow Airport?

Accepted Answer

Users have found that flying from Dublin to London Heathrow Airport on a Friday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Question 13

How far in advance should I book a flight from Dublin to London Heathrow Airport?

Accepted Answer

Travellers have found it’s best to book a flight 57 days in advance to save up to 277% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 57 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Dublin to London Heathrow Airport 1-2 weeks in advance for as low as C$ 174, or C$ 295 for flights within the next 24 hours.

Question 14

What is the cheapest month to fly from Dublin to London Heathrow Airport?

Accepted Answer

January is one of the best times of the year to fly to London Heathrow Airport from Dublin. Prices for January average C$ 150 per person but you can even find prices for as low as C$ 45. The most expensive prices can be found in the month of July. Opting for a January flight can save you 30% on your journey compared to booking in July

Question 15

What is the cheapest time of day to fly from DUB to LHR?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from Dublin to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 75% on your trip compared to booking a flight at noon.

Question 16

What airport do you fly from for flights from Dublin to London Heathrow?

Accepted Answer

Most people fly from Dublin (DUB) if they book a flight from Dublin to London Heathrow. On average, Dublin has 56 outbound flights to London Heathrow per day from 2 airlines. Dublin is conveniently located just 9.2 km from Dublin’s city centre.

Question 17

Can I find deals for flights from Dublin to Heathrow that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Dublin to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 18

How can I find direct flights from Dublin to Heathrow?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Heathrow.

Question 19

Can I find deals for business class flights from Dublin to Heathrow?

Accepted Answer

Yes. Cheapflights offers flight deals from Dublin to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 20

How does Cheapflights help users find flights from Dublin to Heathrow?

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dublin to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 21

Why should you use Cheapflights to find cheap flight tickets from Dublin to Heathrow?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from Dublin to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 22

Can Cheapflights find flights from Dublin to Heathrow with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Heathrow flexibly with Cheapflights today.

Question 23

Can Cheapflights notify me if prices for flights from Dublin to Heathrow become cheaper?

Accepted Answer

Yes! Start tracking prices for Dublin to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Round-trip from	C$ 140
One-way from	C$ 64
Popular in	June
Cheapest in	January
Average price	C$ 226
Good round-trip deal	C$ 252 or less
Good one-way deal	C$ 118 or less

Airline	Cheapest	Average	Flexibility	On-time
British Airways	CheapestC$ 126	AverageC$ 165	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Aer Lingus	CheapestC$ 163	AverageC$ 265	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Cheap flights from Dublin to London Heathrow Airport from C$ 64

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Dublin to London Heathrow are usually found in January or September, booked 48 days in advance, depart on a Thursday or Monday and return on a Sunday

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Find flight deals from Dublin to Heathrow

Cheapest flights from Dublin to HeathrowExplore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2025.

Explore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Dublin to London Heathrow Airport that are best for you.

Best time to book a flight from Dublin to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Dublin with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Dublin to London Heathrow Airport

How far ahead should I book a flight from Dublin to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Dublin to Heathrow. Price data was last updated on 25 July 2025.

What is the cheapest month to book a flight from Dublin to London Heathrow Airport?

What is the cheapest time of day to fly from DUB to LHR?

Find hourly flight availability from Dublin to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2025.

What is the cheapest day to fly from Dublin to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Dublin to Heathrow. Price data was last updated on 27 July 2025.

Weekly flight availability from Dublin to London Heathrow Airport

Explore weekly flight availability from Dublin to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 July 2025.

How much does it cost to fly round-trip from Dublin to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with KLM,Scandinavian Airlines, andVueling from Dublin to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Dublin to London Heathrow?

What is the cheapest airline to fly from Dublin to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Dublin to London Heathrow Airport one-way?

What are the most reliable airlines from Dublin to London Heathrow Airport?

What are the cheapest flights from Dublin to London Heathrow Airport?

Can I find deals for flights from Dublin to Heathrow that include hotel bookings?

How can I find direct flights from Dublin to Heathrow?

Can I find deals for business class flights from Dublin to Heathrow?

What is the cheapest month to book a flight from Dublin to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

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Alternative routes for Dublin to Heathrow

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Top 2 airlines flying from Dublin to Heathrow

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How does Cheapflights help users find flights from Dublin to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Dublin to Heathrow?

Can Cheapflights find flights from Dublin to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Dublin to Heathrow become cheaper?

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Cheapest flights from Dublin to Heathrow
Explore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2025.