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Cheap flights from London Heathrow Airport to Dublin from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Dublin departing on 11/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Dublin (LHR-DUB)

Cheap round-trip flights

British Airways Logo
1:55 pm - 3:25 pmLHR-DUB
1h 30mnonstop
British Airways Logo
5:55 pm - 7:15 pmDUB-LHR
1h 20mnonstop
$94British Airways
Find Deal
Tue, Dec 16 - Sat, Dec 20
British Airways Logo
6:30 am - 7:55 amLHR-DUB
1h 25mnonstop
British Airways Logo
5:55 pm - 7:15 pmDUB-LHR
1h 20mnonstop
$95British Airways
Find Deal
Thu, Nov 6 - Sat, Nov 8
British Airways Logo
10:45 am - 12:15 pmLHR-DUB
1h 30mnonstop
British Airways Logo
5:55 pm - 7:15 pmDUB-LHR
1h 20mnonstop
$96British Airways
Find Deal
Thu, Nov 13 - Sat, Nov 15
British Airways Logo
6:20 am - 7:45 amLHR-DUB
1h 25mnonstop
British Airways Logo
10:50 am - 12:30 pmDUB-LHR
1h 40mnonstop
$97British Airways
Find Deal
Fri, Oct 10 - Wed, Oct 15
British Airways Logo
6:30 am - 7:55 amLHR-DUB
1h 25mnonstop
British Airways Logo
1:10 pm - 2:35 pmDUB-LHR
1h 25mnonstop
$98British Airways
Find Deal
Wed, Nov 12 - Wed, Nov 19
British Airways Logo
6:30 am - 7:55 amLHR-DUB
1h 25mnonstop
British Airways Logo
1:10 pm - 2:35 pmDUB-LHR
1h 25mnonstop
$99British Airways
Find Deal
Wed, Nov 12 - Wed, Nov 19
British Airways Logo
6:30 am - 7:55 amLHR-DUB
1h 25mnonstop
British Airways Logo
1:00 pm - 2:25 pmDUB-LHR
1h 25mnonstop
$100British Airways
Find Deal
Mon, Nov 10 - Mon, Nov 10
British Airways Logo
6:20 am - 7:45 amLHR-DUB
1h 25mnonstop
British Airways Logo
11:05 am - 12:35 pmDUB-LHR
1h 30mnonstop
$101British Airways
Find Deal
Fri, Oct 10 - Mon, Oct 13
British Airways Logo
3:40 pm - 5:05 pmLHR-DUB
1h 25mnonstop
British Airways Logo
10:50 am - 12:30 pmDUB-LHR
1h 40mnonstop
$102British Airways
Find Deal
Wed, Oct 8 - Wed, Oct 15
British Airways Logo
6:10 pm - 7:35 pmLHR-DUB
1h 25mnonstop
British Airways Logo
10:30 am - 12:00 pmDUB-LHR
1h 30mnonstop
$103British Airways
Find Deal
Tue, Oct 7 - Tue, Oct 14

British Airways flights from London Heathrow Airport to Dublin

Our best British Airways deals on London Heathrow Airport to Dublin flight tickets
British Airways
Dec 16
LHR1:55 pmLondon Heathrow
1h 30m
DUB3:25 pmDublin
Dec 20
DUB5:55 pmDublin
1h 20m
LHR7:15 pmLondon Heathrow
$94
Find similar
British Airways
Nov 6
LHR6:30 amLondon Heathrow
1h 25m
DUB7:55 amDublin
Nov 8
DUB5:55 pmDublin
1h 20m
LHR7:15 pmLondon Heathrow
$95
Find similar
British Airways
Nov 13
LHR10:45 amLondon Heathrow
1h 30m
DUB12:15 pmDublin
Nov 15
DUB5:55 pmDublin
1h 20m
LHR7:15 pmLondon Heathrow
$96
Find similar

Aer Lingus flights from London Heathrow Airport to Dublin

Our best Aer Lingus deals on London Heathrow Airport to Dublin flight tickets
Aer Lingus
Sep 6
LHR9:10 pmLondon Heathrow
1h 20m
DUB10:30 pmDublin
Sep 13
DUB7:00 pmDublin
1h 20m
LHR8:20 pmLondon Heathrow
$166
Find similar
Aer Lingus
Sep 8
LHR9:10 pmLondon Heathrow
1h 20m
DUB10:30 pmDublin
Sep 17
DUB11:15 amDublin
1h 25m
LHR12:40 pmLondon Heathrow
$186
Find similar
Aer Lingus
Sep 1
LHR9:10 pmLondon Heathrow
1h 20m
DUB10:30 pmDublin
Sep 7
DUB6:30 amDublin
1h 30m
LHR8:00 amLondon Heathrow
$193
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated August 25, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 12/16

1:55 pm-3:25 pm

Nonstop1h 30m

Dublin

Sat 12/20

5:55 pm-7:15 pm

Nonstop1h 20m

$94

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 11/6

6:30 am-7:55 am

Nonstop1h 25m

Dublin

Sat 11/8

5:55 pm-7:15 pm

Nonstop1h 20m

$95

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 11/13

10:45 am-12:15 pm

Nonstop1h 30m

Dublin

Sat 11/15

5:55 pm-7:15 pm

Nonstop1h 20m

$96

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 10/10

6:20 am-7:45 am

Nonstop1h 25m

Dublin

Wed 10/15

10:50 am-12:30 pm

Nonstop1h 40m

$97

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 11/12

6:30 am-7:55 am

Nonstop1h 25m

Dublin

Wed 11/19

1:10 pm-2:35 pm

Nonstop1h 25m

$98

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 11/12

6:30 am-7:55 am

Nonstop1h 25m

Dublin

Wed 11/19

1:10 pm-2:35 pm

Nonstop1h 25m

$99

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 11/10

6:30 am-7:55 am

Nonstop1h 25m

Dublin

Mon 11/10

1:00 pm-2:25 pm

Nonstop1h 25m

$100

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 10/10

6:20 am-7:45 am

Nonstop1h 25m

Dublin

Mon 10/13

11:05 am-12:35 pm

Nonstop1h 30m

$101

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 10/8

3:40 pm-5:05 pm

Nonstop1h 25m

Dublin

Wed 10/15

10:50 am-12:30 pm

Nonstop1h 40m

$102

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 10/7

6:10 pm-7:35 pm

Nonstop1h 25m

Dublin

Tue 10/14

10:30 am-12:00 pm

Nonstop1h 30m

$103

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from London Heathrow Airport to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dublin?

In general, January is the cheapest month to fly from London Heathrow Airport to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $141. If you’re not able to fly to Dublin in January, then February is your next best option. Flight prices from London Heathrow Airport to Dublin during February average around $148.

What is the cheapest day to depart on your flight to Dublin?

The cheapest day to depart from London Heathrow Airport to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $142. Flights from London Heathrow Airport to Dublin on a Sunday will generally be more expensive and average around $196. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Dublin?

In the evening is the cheapest time of day to fly from London Heathrow Airport to Dublin when you can find flight prices for as low as $124. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $189.

What is the cheapest London Heathrow to Dublin flight route?

Fly from London Heathrow to Dublin for the best London Heathrow - Dublin flight prices

How far in advance should I book a flight to Dublin?

You are more likely to see cheaper flights to Dublin from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $167 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from London Heathrow Airport for as low as $122 on momondo.

What cabin class options are available on London Heathrow to Dublin flights?

There are 4 cabin classes available to choose from on London Heathrow to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London Heathrow Airport to Dublin flight prices changed over time?

As of August 2025, prices for London Heathrow Airport to Dublin flights are approximately 47% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to Dublin (LHR to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Dublin

Best Price Found

$151

Fastest flight time

1h 20m

Direct flights

Every day

Airports in Dublin

1 airport
The best one-way flight to Dublin from London Heathrow Airport in the past 72 hours is $151. The best round-trip flight deal from London Heathrow Airport to Dublin found on momondo in the last 72 hours is $188.
The fastest flight from London Heathrow Airport to Dublin takes 1h 20m
Direct flights go from London Heathrow Airport to Dublin every day.
There is 1 airport near Dublin: Dublin (DUB)
Search flight deals

  • How far is London Heathrow to Dublin by plane?

    A flight from London Heathrow to Dublin will travel around 276.5 mi. 1h 25m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Dublin Airport?

    Prices for flights from London Heathrow Airport to Dublin Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London Heathrow Airport to Dublin Airport?

  • How old do you have to be to fly from London Heathrow Airport to Dublin Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Dublin?

  • What is the most popular airline from London Heathrow Airport to Dublin?

Best airlines flying from London Heathrow Airport to Dublin

Compare and see reviews for airlines that fly from London Heathrow Airport to Dublin with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $90Free CancellationRating
6.7
7,305 reviews
Search British Airways flights
Aer LingusPriceFrom $146Free CancellationRating
7.2
1,230 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From London Heathrow Airport to Dublin

    Aer Lingus operates around 100 flights from London Heathrow Airport to Dublin every week. The average price of these flights found in the last 72 hours has been $199, but momondo users have found Aer Lingus deals from London Heathrow Airport to Dublin from as low as $146 round-trip. Aer Lingus has been scored 7.2/10 in 1,230 reviews.

  • British Airways Flights From London Heathrow Airport to Dublin

    The best British Airways deal for London Heathrow Airport to Dublin flight tickets found on momondo in the last 72 hours was $90, round-trip. It should be noted that an average British Airways flight deal for this route in this time was higher, at $148 round-trip. British Airways operates 102 flights out of London Heathrow Airport into Dublin in an average week, so prices vary by time and availability. 7,305 British Airways reviews by users on momondo have scored the airline at 6.7/10.

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Athlone
Dundalk
Malahide
Maynooth
Leixlip
Bray
Castleknock
Kildare
Naas
Mullingar
Arklow
Cavan
Enniscorthy
Wicklow
Drogheda
Thurles
Slane

Why use momondo?

Why should I use momondo to find a flight deal from London to Dublin?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Dublin. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Dublin with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Dublin from London with this policy.

How can momondo help me find flights from London to Dublin?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Dublin from London.

I’m not ready to book a flight from London to Dublin right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Dublin flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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