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Cheap flights from London Heathrow Airport to Dublin from £46

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or September, booked 86 days in advance, depart on a Friday or Saturday and return on a Friday

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 13 June 2025.

Round-trip from

£71

One-way from

£46

Popular in

June

Cheapest in

January

Average price

£146

Good round-trip deal

£233 or less

Good one-way deal

£113 or less
British Airways
  • British Airways
  • 10/9-24/9
  • Nonstop
  • 2h 45m total
  • London to Dublin
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British Airways
  • British Airways
  • 18/9
  • Nonstop
  • 1h 25m total
  • London to Dublin
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Highest demand for flights based on searches. 7% potential increase in price (£6 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in June 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 13 June 2025.

Wed 10/1208:15LHR - DUB
Nonstop1h 25mBritish Airways
Wed 24/1220:30DUB - LHR
Nonstop1h 20mBritish Airways
Deal found 11/6£67
Thu 31/715:50LHR - DUB
Nonstop1h 25mAer Lingus
Sun 3/813:30DUB - LHR
Nonstop1h 25mAer Lingus
Deal found 12/6£108
Sat 12/720:10LHR - DUB
Nonstop1h 20mMultiple Airlines
Sat 26/708:35DUB - LHR
Nonstop1h 35mMultiple Airlines
Deal found 12/6£113
Wed 2/715:05LHR - DUB
1 stop16h 30mVueling
Thu 17/708:20DUB - LHR
1 stop5h 55mVueling
Deal found 12/6£133
Tue 5/806:40LHR - DUB
1 stop12h 45mScandinavian Airlines
Sat 16/820:05DUB - LHR
1 stop12h 50mScandinavian Airlines
Deal found 11/6£160
Thu 31/708:40LHR - DUB
1 stop3h 55mKLM
Mon 4/805:55DUB - LHR
1 stop4h 50mKLM
Deal found 11/6£163
Thu 24/719:45LHR - DUB
1 stop12h 30mAir France
Sun 27/706:00DUB - LHR
1 stop26h 00mAir France
Deal found 11/6£175

Cheapflights Fare Finder

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 858,174 searches. Data last updated 13 June 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 10/9

06:15-07:40

Nonstop1h 25m

Dublin

Wed 24/9

20:20-21:40

Nonstop1h 20m

£71

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 31/7

15:50-17:15

Nonstop1h 25m

Dublin

Sun 3/8

13:30-14:55

Nonstop1h 25m

£108

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 12/7

20:10-21:30

Nonstop1h 20m

Dublin

Sat 26/7

08:35-10:10

Nonstop1h 35m

£113

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 2/7

15:05-07:35

1 stop16h 30m

Dublin

Thu 17/7

08:20-14:15

1 stop5h 55m

£133

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 5/8

06:40-19:25

1 stop12h 45m

Dublin

Sat 16/8

20:05-08:55

1 stop12h 50m

£160

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 31/7

08:40-12:35

1 stop3h 55m

Dublin

Mon 4/8

05:55-10:45

1 stop4h 50m

£163

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 24/7

19:45-08:15

1 stop12h 30m

Dublin

Sun 27/7

06:00-08:00

1 stop26h 00m

£175

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 18/9

06:20-07:45

Nonstop1h 25m

£46

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sun 19/10

15:10-16:35

Nonstop1h 25m

£62

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 9/7

15:05-07:35

1 stop16h 30m

£64

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 17 results
1
2

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.

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 return flight from Heathrow to Dublin. Price data was last updated on 9 June 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of £71). Flying from London Heathrow Airport to Dublin in August is currently the most expensive (average of £94). 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 13 June 2025.

It’s optimal to fly from London Heathrow Airport to Dublin in the afternoon. By choosing this option you can save up to 75% on the cost of your flight, compared to a flight in the morning.

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 8 June 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Dublin flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Tuesday evenings 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 13 June 2025.

The most flights from LHR to DUB are scheduled on a Thursday (73 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (32 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 13 June 2025.
Read through reviews of airlines operating flights from London to Dublin, such as KLM, Austrian Airlines and Air France. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Austrian Airlines
7.6
Good
802 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Air France
7.5
Good
1,463 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
SWISS
7.5
Good
1,624 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Scandinavian Airlines
7.3
Good
1,387 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Boarding

7.8

Food

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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?

    If you book a flight to Dublin from London Heathrow, you will be flying to Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 48 flights from London Heathrow to Dublin per day from 3 different airlines.

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

    Our cheapest airline available from London Heathrow Airport to Dublin is British Airways. Our recent data shows that you can find tickets from as low as £71 on this airline. Additional options worth looking into are Aer Lingus and Vueling, starting at £108 and £133 round-trip. British Airways is currently priced 40% below the average price you’ll pay for this route.

  • 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 £46 on British Airways. Other airlines that offer cheap prices include Aer Lingus from £62 and Vueling from £64 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: LATAM Airlines (91%), Aer Lingus (90%), British Airways( 90%).

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

    Looking at all options, your cheapest flight can be booked for £80. While the most popular route (London Heathrow - Dublin) can be booked for £67 on average our data indicates £574 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 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of £71). Flying from London Heathrow Airport to Dublin in August is currently the most expensive (average of £94). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Wicklow
Athlone
Bray
Tullamore
Malahide
Cavan
Drogheda
Portmarnock
Enniscorthy
Mullingar
Dundalk
Arklow
Carlingford
Kildare
Maynooth
Swords
Castleknock
Naas

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Dublin on these airlines

Choose from the following airlines for your flight from Heathrow to Dublin. Flights are based on user searches made on Cheapflights and were last updated on 13 June 2025.
British Airways flights from London Heathrow to Dublin
Aer Lingus flights from London Heathrow to Dublin
Ryanair flights from London Heathrow to Dublin

Top 3 airlines flying from Heathrow to Dublin

Discover the top 3 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 858,174 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£26Average£48FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£61Average£105FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£95Average£135FlexibilityNo 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 helps you search for flights from Heathrow to Dublin via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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

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, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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