Cheap flights from London Heathrow Airport to Dublin from $91

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
30 sie — 6 wrz1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or February, booked 66 days in advance, depart on a Wednesday or Saturday 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 25 sierpnia 2025.

Round-trip from

$148

One-way from

$91

Popular in

June

Cheapest in

January

Average price

$296

Good round-trip deal

$367 or less

Good one-way deal

$148 or less
British Airways
  • British Airways
  • 13/11-15/11
  • Nonstop
  • 2h 50m total
  • London to Dublin
British Airways
  • British Airways
  • 15/11
  • Nonstop
  • 1h 30m total
  • London to Dublin
Highest demand for flights based on searches. 7% potential increase in price ($33 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from London Heathrow to Dublin.
Price to beat on a one-way flight from London Heathrow to Dublin.

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 25 sierpnia 2025.

czw. 13/1110:45LHR - DUB
Nonstop1h 30mBritish Airways
sob. 15/1117:55DUB - LHR
Nonstop1h 20mBritish Airways
Deal found 23/8$148
śr. 12/1106:30LHR - DUB
Nonstop1h 25mBritish Airways
śr. 19/1113:10DUB - LHR
Nonstop1h 25mBritish Airways
Deal found 23/8$151
czw. 6/1115:30LHR - DUB
Nonstop1h 30mBritish Airways
wt. 11/1108:50DUB - LHR
Nonstop1h 35mBritish Airways
Deal found 22/8$152
pon. 10/1106:30LHR - DUB
Nonstop1h 25mBritish Airways
pon. 10/1113:00DUB - LHR
Nonstop1h 25mBritish Airways
Deal found 24/8$154
pt. 10/1006:20LHR - DUB
Nonstop1h 25mBritish Airways
pon. 13/1011:05DUB - LHR
Nonstop1h 30mBritish Airways
Deal found 23/8$155
śr. 8/1015:40LHR - DUB
Nonstop1h 25mBritish Airways
śr. 15/1010:50DUB - LHR
Nonstop1h 40mBritish Airways
Deal found 24/8$157
wt. 7/1006:20LHR - DUB
Nonstop1h 25mBritish Airways
pon. 13/1008:45DUB - LHR
Nonstop1h 35mBritish Airways
Deal found 24/8$159
pt. 3/1018:05LHR - DUB
Nonstop1h 25mBritish Airways
czw. 16/1011:00DUB - LHR
Nonstop1h 30mBritish Airways
Deal found 24/8$160
pon. 20/1006:20LHR - DUB
Nonstop1h 25mBritish Airways
wt. 21/1010:30DUB - LHR
Nonstop1h 30mBritish Airways
Deal found 24/8$163
wt. 30/918:10LHR - DUB
Nonstop1h 25mBritish Airways
czw. 2/1008:35DUB - LHR
Nonstop1h 35mBritish Airways
Deal found 24/8$165
pon. 6/1006:20LHR - DUB
Nonstop1h 25mBritish Airways
pon. 13/1008:45DUB - LHR
Nonstop1h 35mBritish Airways
Deal found 24/8$166
sob. 4/1006:15LHR - DUB
Nonstop1h 25mBritish Airways
sob. 4/1010:30DUB - LHR
Nonstop1h 30mBritish Airways
Deal found 24/8$168

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 25 sierpnia 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

czw. 13/11

10:45-12:15

Nonstop1h 30m

Dublin

sob. 15/11

17:55-19:15

Nonstop1h 20m

$148

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

śr. 12/11

06:30-07:55

Nonstop1h 25m

Dublin

śr. 19/11

13:10-14:35

Nonstop1h 25m

$151

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

pt. 5/12

06:30-07:55

Nonstop1h 25m

Dublin

sob. 6/12

17:55-19:15

Nonstop1h 20m

$152

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

czw. 6/11

15:30-17:00

Nonstop1h 30m

Dublin

wt. 11/11

08:50-10:25

Nonstop1h 35m

$152

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

czw. 18/12

06:30-07:55

Nonstop1h 25m

Dublin

sob. 20/12

17:55-19:15

Nonstop1h 20m

$152

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

pt. 10/10

06:20-07:45

Nonstop1h 25m

Dublin

pon. 13/10

11:05-12:35

Nonstop1h 30m

$155

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

wt. 18/11

18:15-19:40

Nonstop1h 25m

Dublin

czw. 20/11

08:50-10:25

Nonstop1h 35m

$155

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

pt. 17/10

06:20-07:45

Nonstop1h 25m

Dublin

pon. 20/10

11:05-12:35

Nonstop1h 30m

$155

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

pon. 6/10

06:20-07:45

Nonstop1h 25m

Dublin

pon. 6/10

11:05-12:35

Nonstop1h 30m

$155

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

sob. 15/11

15:30-17:00

Nonstop1h 30m

$91

Flights are sorted by cheapest return flights first.

Deals found on 24/8

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 22 August 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 25 sierpnia 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 20% 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 17 August 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Dublin flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday 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 25 sierpnia 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.

Comfort

7.1

Overall

7.1

Boarding

7.3

Crew

8.0

Entertainment

6.9

Food

6.5

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.

Comfort

7.1

Overall

7.1

Boarding

7.3

Crew

8.0

Entertainment

6.9

Food

6.5

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.

Comfort

7.1

Overall

7.1

Boarding

7.3

Crew

8.0

Entertainment

6.9

Food

6.5

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.

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 53 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 $110, 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 $200. Users have found that British Airways is 57% 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: Air Canada (85%), LATAM Airlines (79%), Qatar Airways (77%).

  • 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 $294, our data indicates the cheapest price to be $102. The most popular route (London Heathrow - Dublin), is priced around $316.

  • 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

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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.

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 25 sierpnia 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$110Average$174FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest$200Average$260FlexibilityNo 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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