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Cheap flights from London Heathrow Airport to Dublin from $99

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
26 Feb — 5 Mar1
1 adult

The best prices from London Heathrow to Dublin are usually found in January or September, booked 66 days in advance, depart on a Wednesday 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 21 February 2025.

Round-trip from

$141

One-way from

$99

Popular in

December

Cheapest in

January

Average price

$220

Good round-trip deal

$168 or less

Good one-way deal

$117 or less
British Airways
  • British Airways
  • 23/4-28/4
  • Nonstop
  • 3h 00m total
  • London to Dublin
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British Airways
  • British Airways
  • 14/5
  • Nonstop
  • 1h 25m total
  • London to Dublin
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($3 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average return price).
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Average for round-trip flights in February 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 21 February 2025.

Mon 8/906:20LHR - DUB
Nonstop1h 25mBritish Airways
Sat 13/920:10DUB - LHR
Nonstop1h 20mBritish Airways
Deal found 20/2$124
Wed 23/421:35LHR - DUB
1 stop12h 10mMultiple Airlines
Mon 28/408:45DUB - LHR
Nonstop1h 35mMultiple Airlines
Deal found 20/2$243
Sat 22/316:25LHR - DUB
1 stop5h 40mKLM
Fri 28/313:25DUB - LHR
1 stop5h 50mKLM
Deal found 21/2$285
Wed 2/415:05LHR - DUB
1 stop16h 30mVueling
Thu 10/408:20DUB - LHR
1 stop5h 55mVueling
Deal found 20/2$301
Mon 7/420:05LHR - DUB
1 stop16h 05mSWISS
Tue 15/413:00DUB - LHR
1 stop6h 20mSWISS
Deal found 20/2$354
Sat 21/606:30LHR - DUB
1 stop5h 00mLufthansa
Thu 26/609:00DUB - LHR
1 stop5h 40mLufthansa
Deal found 21/2$395

Find flights from Heathrow to Dublin within your budget

Customise 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 647,157 searches. Data last updated 21 February 2025.

Fly from

Heathrow

Fly to

Dublin

Route

Depart

Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 23/4

06:15-07:40

Nonstop1h 25m

Dublin

Mon 28/4

08:45-10:20

Nonstop1h 35m

$141

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 23/4

21:35-09:45

1 stop12h 10m

Dublin

Mon 28/4

08:45-10:20

Nonstop1h 35m

$243

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 22/3

16:25-22:05

1 stop5h 40m

Dublin

Fri 28/3

13:25-19:15

1 stop5h 50m

$285

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 2/4

15:05-07:35

1 stop16h 30m

Dublin

Thu 10/4

08:20-14:15

1 stop5h 55m

$301

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 19/3

06:00-17:50

1 stop11h 50m

Dublin

Wed 26/3

12:55-08:05

1 stop19h 10m

$351

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 21/6

06:30-11:30

1 stop5h 00m

Dublin

Thu 26/6

09:00-14:40

1 stop5h 40m

$395

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 14/5

06:15-07:40

Nonstop1h 25m

$99

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 26/3

15:15-07:55

1 stop16h 40m

$110

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sun 2/3

07:50-09:10

Nonstop1h 20m

$143

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 22/3

17:50-22:05

1 stop4h 15m

$182

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 15 results
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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 return 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.

Travel insights for flights from Heathrow to Dublin

Get recent, data-driven insights about flights from Heathrow to Dublin including ideal travel times, pricing trends, and more.

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 return flight from Heathrow to Dublin. Price data was last updated on 14 February 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Dublin, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of $1,200). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of $1,912). 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 21 February 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Dublin in the afternoon. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight at midday.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Dublin. Price data was last updated on 16 February 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Dublin flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 21 February 2025.

The most flights from LHR to DUB are scheduled on a Friday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (31 on average).

Rainfall in Dublin by month

Plan your trip to Dublin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dublin ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Dublin when rainfall is around 49.0 mm.

Temperature in Dublin by month

Plan your trip to Dublin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dublin, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 21 February 2025.
To help decide which airline to fly from London to Dublin, see what other customers have to say about KLM, Austrian Airlines and SWISS. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.5
Good
771 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,568 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Vueling
7.1
Good
1,162 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.0
Good
1,069 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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?

    Most people fly into Dublin (DUB) if they book a flight to Dublin from London Heathrow. On average, Dublin has 47 inbound flights from London Heathrow per day from 2 airlines. Dublin is conveniently located just 9.2 km from Dublin’s city centre.

  • What are the cheapest airlines flying from London Heathrow Airport to Dublin round-trip?

    Currently priced at $141, British Airways will fly you from London Heathrow Airport to Dublin and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and Vueling - these airlines can fly you to your destination from $285 and $301, respectively. Users have found that British Airways is 40% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $99. However, be on the lookout for offers from Vueling and Aer Lingus, as they are both options that can get you from London Heathrow Airport to Dublin for a low price.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Dublin on time: Kenya Airways (76%), Qatar Airways (76%), Aer Lingus (74%).

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

    Looking for the cheapest flight from London Heathrow Airport to Dublin? While on average our users pay $157, our data indicates the cheapest price to be $99. The most popular route (London Heathrow - Dublin), is priced around $321.

  • 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 holiday 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of $1,200). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of $1,912). 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 647,157 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$104Average$177FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest$199Average$252FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Heathrow to Dublin flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dublin from Heathrow.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Dublin, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Heathrow to Dublin 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.

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