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Cheap flights from London Heathrow Airport to Dublin from C$ 89

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
3 Aug — 10 Aug1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or September, booked 66 days in advance, depart on a Sunday or Monday and return on a Thursday

Cheap flight deals from Heathrow to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 July 2025.

Round-trip from

C$ 148

One-way from

C$ 89

Popular in

June

Cheapest in

January

Average price

C$ 258

Good round-trip deal

C$ 792 or less

Good one-way deal

C$ 196 or less
British Airways
  • British Airways
  • 8/10-8/10
  • Nonstop
  • 3h 05m total
  • London to Dublin
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British Airways
  • British Airways
  • 14/10
  • Nonstop
  • 1h 25m total
  • London to Dublin
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Highest demand for flights based on searches. 9% potential increase in price (C$ 31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from London Heathrow to Dublin.
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Price to beat on a one-way flight from London Heathrow to Dublin.
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Find flight deals from Heathrow to Dublin

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

Wed 8/106:15 a.m.LHR - DUB
Nonstop1h 25mBritish Airways
Wed 8/1010:50 a.m.DUB - LHR
Nonstop1h 40mBritish Airways
Deal found 29/7C$ 148

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Dublin that are best for you.

Fly from

Heathrow

Fly to

Dublin

Route

Depart

Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 8/10

6:15 a.m.-7:40 a.m.

Nonstop1h 25m

Dublin

Wed 8/10

10:50 a.m.-12:30 p.m.

Nonstop1h 40m

C$ 148

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 14/10

6:10 p.m.-7:35 p.m.

Nonstop1h 25m

C$ 89

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 3/9

3:05 p.m.-7:35 a.m.

1 stop16h 30m

C$ 122

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 9/9

8:50 a.m.-10:15 a.m.

Nonstop1h 25m

C$ 133

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 12/9

11:05 a.m.-6:00 p.m.

1 stop6h 55m

C$ 152

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 1/9

6:40 a.m.-8:20 p.m.

1 stop13h 40m

C$ 166

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Best time to book a flight from Heathrow to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

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

The price you pay for your flight from London Heathrow Airport to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of C$ 458). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of C$ 760). 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.

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

Find hourly flight availability from Heathrow to Dublin. 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.

When flying from London Heathrow Airport to Dublin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 74% versus a flight in the morning.

Weekly flight availability from London Heathrow Airport to Dublin

Explore weekly flight availability from Heathrow to Dublin. 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.

The most flights from LHR to DUB are scheduled on a Tuesday (65 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (30 on average).

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated 29 July 2025.
Check out reviews from past customers who have flown with Scandinavian Airlines,Vueling, andAer Lingus from London Heathrow Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.3
Good
1,449 reviews
Check prices

Boarding

7.6

Entertainment

6.6

Comfort

7.3

Crew

8.0

Food

6.6

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Scandinavian Airlines
7.3
Good
1,449 reviews
Scandinavian Airlines
7.3
Good
1,449 reviews
Check prices

Boarding

7.6

Entertainment

6.6

Comfort

7.3

Crew

8.0

Food

6.6

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Vueling
7.1
Good
1,175 reviews
Scandinavian Airlines
7.3
Good
1,449 reviews
Check prices

Boarding

7.6

Entertainment

6.6

Comfort

7.3

Crew

8.0

Food

6.6

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Aer Lingus
7.1
Good
1,190 reviews
Scandinavian Airlines
7.3
Good
1,449 reviews
Check prices

Boarding

7.6

Entertainment

6.6

Comfort

7.3

Crew

8.0

Food

6.6

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
British Airways
6.6
Okay
7,208 reviews
Scandinavian Airlines
7.3
Good
1,449 reviews
Check prices

Boarding

7.6

Entertainment

6.6

Comfort

7.3

Crew

8.0

Food

6.6

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Dublin. 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 into for flights to Dublin from London Heathrow?

    For a flight from London Heathrow to Dublin, you will be flying into Dublin. Dublin (DUB) is just 9.2 km from the centre of the city. Dublin is the only Dublin airport and it handles 48 inbound flights from London Heathrow per day. 2 airlines have flights to Dublin from London Heathrow on a regular basis.

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

    Flying on British Airways is currently your cheapest option to Dublin, with prices starting at C$ 148. British Airways is priced at 33% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as C$ 89 on British Airways. Other airlines that offer cheap prices include Vueling from C$ 122 and Aer Lingus from C$ 133 one-way.

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

    Before booking your flight to Dublin from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (100%), Aer Lingus (88%), British Airways( 88%).

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

    Looking at all options, your cheapest flight can be booked for C$ 102. While the most popular route (London Heathrow - Dublin) can be booked for C$ 520 on average our data indicates C$ 692 when flying from London Heathrow Airport to Dublin.

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

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

  • How can I find direct flights from Heathrow to Dublin?

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of C$ 458). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of C$ 760). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Dublin flights

Top 2 airlines flying from Heathrow to Dublin

Discover the top 2 airlines that operate flights from Heathrow to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 124AverageC$ 179FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapestC$ 198AverageC$ 261FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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

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

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Dublin.

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

Yes, we can. To see specific flights from Heathrow to Dublin with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Heathrow to Dublin flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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