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Cheap flights from London Heathrow Airport to Dublin from $92

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

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

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 7 November 2025.

Round-trip from

$145

One-way from

$92

Popular in

June

Cheapest in

January

Average price

$251

Good round-trip deal

$191 or less

Good one-way deal

$147 or less
British Airways
  • British Airways
  • 23/1-25/1
  • Nonstop
  • 3h 05m total
  • London to Dublin
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British Airways
  • British Airways
  • 6/1
  • Nonstop
  • 1h 30m total
  • London to Dublin
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($28 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 November 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

Enter your travel dates to find the best prices.

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 7 November 2025.

Sat 6/1218:25LHR - DUB
Nonstop1h 25mBritish Airways
Mon 8/1208:50DUB - LHR
Nonstop1h 35mBritish Airways
Deal found 5/11$148
Thu 11/1206:30LHR - DUB
Nonstop1h 25mBritish Airways
Sat 13/1213:10DUB - LHR
Nonstop1h 25mBritish Airways
Deal found 5/11$155
Thu 11/1206:30LHR - DUB
Nonstop1h 25mBritish Airways
Fri 12/1208:50DUB - LHR
Nonstop1h 35mBritish Airways
Deal found 5/11$157
Mon 8/1212:50LHR - DUB
Nonstop1h 30mBritish Airways
Wed 17/1213:10DUB - LHR
Nonstop1h 25mBritish Airways
Deal found 7/11$163
Tue 9/1211:05LHR - DUB
Nonstop1h 30mBritish Airways
Thu 11/1220:40DUB - LHR
Nonstop1h 20mBritish Airways
Deal found 6/11$165
Tue 9/1215:35LHR - DUB
Nonstop1h 30mBritish Airways
Wed 10/1208:50DUB - LHR
Nonstop1h 35mBritish Airways
Deal found 7/11$169
Mon 8/1212:50LHR - DUB
Nonstop1h 30mBritish Airways
Fri 12/1216:00DUB - LHR
Nonstop1h 25mBritish Airways
Deal found 6/11$172
Sat 29/1115:30LHR - DUB
Nonstop1h 30mBritish Airways
Mon 1/1215:10DUB - LHR
Nonstop1h 25mBritish Airways
Deal found 7/11$177

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 647,157 searches. Data last updated 7 November 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

Sat 29/11

15:30-17:00

Nonstop1h 30m

Dublin

Sat 13/12

13:10-14:35

Nonstop1h 25m

$148

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 5/2

06:30-07:55

Nonstop1h 25m

Dublin

Thu 5/2

13:10-14:35

Nonstop1h 25m

$154

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 19/1

12:50-14:20

Nonstop1h 30m

Dublin

Tue 20/1

08:50-10:25

Nonstop1h 35m

$154

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 11/12

06:30-07:55

Nonstop1h 25m

Dublin

Fri 12/12

08:50-10:25

Nonstop1h 35m

$157

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 5/1

06:30-07:55

Nonstop1h 25m

Dublin

Wed 7/1

13:10-14:35

Nonstop1h 25m

$157

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 6/1

18:15-19:40

Nonstop1h 25m

Dublin

Thu 8/1

10:30-12:05

Nonstop1h 35m

$165

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 9/12

15:35-17:05

Nonstop1h 30m

Dublin

Wed 10/12

08:50-10:25

Nonstop1h 35m

$169

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 29/11

15:30-17:00

Nonstop1h 30m

Dublin

Wed 3/12

20:40-22:00

Nonstop1h 20m

$177

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 29/11

15:30-17:00

Nonstop1h 30m

Dublin

Thu 4/12

20:40-22:00

Nonstop1h 20m

$177

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 29/11

15:30-17:00

Nonstop1h 30m

Dublin

Mon 1/12

15:10-16:35

Nonstop1h 25m

$177

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 21 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.

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 31 October 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 86 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 $126). Flying from London Heathrow Airport to Dublin in August is currently the most expensive (average of $165). 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 7 November 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Dublin in the morning. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the evening.

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 2 November 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Dublin flight should consider departing on Saturday evenings 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.

How much does it cost for a return flight from London Heathrow Airport to Dublin?

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 7 November 2025.
See what other customers who have flown with Aer Lingus and British Airways from London Heathrow Airport to Dublin have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Food

6.6

Boarding

7.4

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.
Aer Lingus
7.2
Good
1,365 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Food

6.6

Boarding

7.4

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.
British Airways
6.7
Okay
7,500 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Comfort

7.1

Overall

7.2

Crew

8.0

Entertainment

6.9

Food

6.6

Boarding

7.4

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.

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 42 inbound flights from London Heathrow per day from 2 airlines. Dublin is conveniently located just 9.2 km from Dublin’s city centre.

  • How long is the flight from London Heathrow Airport to Dublin?

    For as low as $148, British Airways can have you in Dublin from London Heathrow Airport in 1h 30m. London Heathrow Airport and Dublin are separated by a distance of 449 km. Most flights are nonstop.

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

    Currently priced at $116, 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. Check Cheapflights for deals on Aer Lingus for as low as $215. Users have found that British Airways is 55% cheaper than the other options available to this destination.

  • 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: Qatar Airways (71%), Air Canada (70%), Aer Lingus (69%).

  • 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 $189, our data indicates the cheapest price to be $120. The most popular route (London Heathrow - Dublin), is priced around $315.

  • 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 $126). Flying from London Heathrow Airport to Dublin in August is currently the most expensive (average of $165). 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$116Average$185FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest$215Average$283FlexibilityNo 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 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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