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Cheap flights from London Heathrow Airport to Dublin from C$ 88

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 31/12. 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

Cheap round-trip flights

British Airways Logo
4:50 p.m. - 6:20 p.m.LHR-DUB
1h 30mdirect
British Airways Logo
10:50 a.m. - 12:30 p.m.DUB-LHR
1h 40mdirect
C$ 148British Airways
Find Deal
Tue, 23 Sep - Wed, 24 Sep
British Airways Logo
4:50 p.m. - 6:20 p.m.LHR-DUB
1h 30mdirect
British Airways Logo
10:55 a.m. - 12:30 p.m.DUB-LHR
1h 35mdirect
C$ 149British Airways
Find Deal
Tue, 23 Sep - Wed, 24 Sep
British Airways Logo
4:50 p.m. - 6:20 p.m.LHR-DUB
1h 30mdirect
British Airways Logo
10:55 a.m. - 12:30 p.m.DUB-LHR
1h 35mdirect
C$ 150British Airways
Find Deal
Tue, 23 Sep - Wed, 24 Sep
British Airways Logo
4:50 p.m. - 6:20 p.m.LHR-DUB
1h 30mdirect
British Airways Logo
8:35 a.m. - 10:10 a.m.DUB-LHR
1h 35mdirect
C$ 152British Airways
Find Deal
Tue, 23 Sep - Thu, 25 Sep
British Airways Logo
6:15 a.m. - 7:40 a.m.LHR-DUB
1h 25mdirect
British Airways Logo
10:25 a.m. - 12:00 p.m.DUB-LHR
1h 35mdirect
C$ 153British Airways
Find Deal
Sat, 11 Oct - Tue, 14 Oct
British Airways Logo
4:30 p.m. - 5:55 p.m.LHR-DUB
1h 25mdirect
British Airways Logo
10:50 a.m. - 12:30 p.m.DUB-LHR
1h 40mdirect
C$ 154British Airways
Find Deal
Wed, 1 Oct - Wed, 8 Oct
British Airways Logo
6:20 a.m. - 7:45 a.m.LHR-DUB
1h 25mdirect
British Airways Logo
10:55 a.m. - 12:30 p.m.DUB-LHR
1h 35mdirect
C$ 156British Airways
Find Deal
Fri, 12 Sep - Wed, 17 Sep
British Airways Logo
6:20 a.m. - 7:45 a.m.LHR-DUB
1h 25mdirect
British Airways Logo
12:45 p.m. - 2:15 p.m.DUB-LHR
1h 30mdirect
C$ 157British Airways
Find Deal
Fri, 10 Oct - Tue, 14 Oct
British Airways Logo
6:20 a.m. - 7:45 a.m.LHR-DUB
1h 25mdirect
British Airways Logo
8:45 a.m. - 10:20 a.m.DUB-LHR
1h 35mdirect
C$ 159British Airways
Find Deal
Fri, 17 Oct - Mon, 20 Oct
British Airways Logo
6:00 p.m. - 7:25 p.m.LHR-DUB
1h 25mdirect
British Airways Logo
10:25 a.m. - 12:00 p.m.DUB-LHR
1h 35mdirect
C$ 160British Airways
Find Deal
Thu, 9 Oct - Tue, 14 Oct

British Airways flights from London Heathrow Airport to Dublin

Our best British Airways deals on London Heathrow Airport to Dublin flight tickets
British Airways
23 Sep
LHR4:50 p.m.London Heathrow
1h 30m
DUB6:20 p.m.Dublin
24 Sep
DUB10:50 a.m.Dublin
1h 40m
LHR12:30 p.m.London Heathrow
C$ 148
Find similar
British Airways
23 Sep
LHR4:50 p.m.London Heathrow
1h 30m
DUB6:20 p.m.Dublin
24 Sep
DUB10:55 a.m.Dublin
1h 35m
LHR12:30 p.m.London Heathrow
C$ 149
Find similar
British Airways
23 Sep
LHR4:50 p.m.London Heathrow
1h 30m
DUB6:20 p.m.Dublin
24 Sep
DUB10:55 a.m.Dublin
1h 35m
LHR12:30 p.m.London Heathrow
C$ 150
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
7 Aug
LHR7:40 a.m.London Heathrow
1h 20m
DUB9:00 a.m.Dublin
9 Aug
DUB6:00 p.m.Dublin
1h 25m
LHR7:25 p.m.London Heathrow
C$ 310
Find similar
Aer Lingus
2 Aug
LHR9:10 p.m.London Heathrow
1h 20m
DUB10:30 p.m.Dublin
6 Aug
DUB11:15 a.m.Dublin
1h 25m
LHR12:40 p.m.London Heathrow
C$ 326
Find similar
Aer Lingus
2 Aug
LHR8:10 p.m.London Heathrow
1h 20m
DUB9:30 p.m.Dublin
3 Aug
DUB6:30 a.m.Dublin
1h 30m
LHR8:00 a.m.London Heathrow
C$ 327
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 96,600 searches. Data last updated 31 July 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 23/9

4:50 p.m.-6:20 p.m.

Nonstop1h 30m

Dublin

Wed 24/9

10:50 a.m.-12:30 p.m.

Nonstop1h 40m

C$ 148

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 23/9

4:50 p.m.-6:20 p.m.

Nonstop1h 30m

Dublin

Wed 24/9

10:55 a.m.-12:30 p.m.

Nonstop1h 35m

C$ 149

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 23/9

4:50 p.m.-6:20 p.m.

Nonstop1h 30m

Dublin

Wed 24/9

10:55 a.m.-12:30 p.m.

Nonstop1h 35m

C$ 150

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Tue 23/9

4:50 p.m.-6:20 p.m.

Nonstop1h 30m

Dublin

Thu 25/9

8:35 a.m.-10:10 a.m.

Nonstop1h 35m

C$ 152

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sat 11/10

6:15 a.m.-7:40 a.m.

Nonstop1h 25m

Dublin

Tue 14/10

10:25 a.m.-12:00 p.m.

Nonstop1h 35m

C$ 153

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Wed 1/10

4:30 p.m.-5:55 p.m.

Nonstop1h 25m

Dublin

Wed 8/10

10:50 a.m.-12:30 p.m.

Nonstop1h 40m

C$ 154

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 12/9

6:20 a.m.-7:45 a.m.

Nonstop1h 25m

Dublin

Wed 17/9

10:55 a.m.-12:30 p.m.

Nonstop1h 35m

C$ 156

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 10/10

6:20 a.m.-7:45 a.m.

Nonstop1h 25m

Dublin

Tue 14/10

12:45 p.m.-2:15 p.m.

Nonstop1h 30m

C$ 157

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Fri 17/10

6:20 a.m.-7:45 a.m.

Nonstop1h 25m

Dublin

Mon 20/10

8:45 a.m.-10:20 a.m.

Nonstop1h 35m

C$ 159

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 9/10

6:00 p.m.-7:25 p.m.

Nonstop1h 25m

Dublin

Tue 14/10

10:25 a.m.-12:00 p.m.

Nonstop1h 35m

C$ 160

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 typical price of a round-trip flight between London Heathrow Airport and Dublin?

What is the cheapest month to fly to Dublin?

If you’re not able to fly to Dublin in January, then September is your next best option. Flight prices from London Heathrow Airport to Dublin during September average around C$ 200.

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

On average, the least expensive day to fly to Dublin from London Heathrow Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as C$ 144. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around C$ 262. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

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

According to our data, the cheapest time of day to fly to Dublin is in the evening. momondo users have found flights departing from London Heathrow Airport to Dublin in the evening for as low as C$ 125. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of C$ 202.

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 C$ 225 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 C$ 168 on momondo.

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

There are 3 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 July 2025, prices for London Heathrow Airport to Dublin flights are approximately 45% 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

C$ 88

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 C$ 88. The best round-trip flight deal from London Heathrow Airport to Dublin found on momondo in the last 72 hours is C$ 148.
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?

    The straight-line distance from London Heathrow to Dublin is 445.0 km. Flights usually cover this in 1h 20m, depending on flying conditions and air traffic around both airports.

  • 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 updated daily.

  • 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 for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Dublin Airport.

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

    The travel and health documents required for your trip to Dublin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Dublin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • 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 C$ 124Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
Aer LingusPriceFrom C$ 199Free CancellationRating
7.1
1,192 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From London Heathrow Airport to Dublin

    Aer Lingus flight deals from London Heathrow Airport to Dublin start from C$ 144 round-trip. Over the 95 Aer Lingus flights for this route in a normal week, average airfare is usually C$ 190 round-trip - but some users have found much cheaper deals with momondo.

  • British Airways Flights From London Heathrow Airport to Dublin

    Across 7,222 British Airways reviews on momondo, the average score is 6.6/10. British Airways flies from London Heathrow Airport to Dublin about 90 times each week, with ticket deals ranging from C$ 90 to C$ 131. Price data is based on momondo searches in the last 72 hours.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Bray
Maynooth
Portmarnock

Why use momondo?

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

It is quick and easy to find London to Dublin flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Dublin that suits you.

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

Flights from London to Dublin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between London and Dublin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of London to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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