Cheap flights from London to Dublin from £21

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 to Dublin departing on 1/2. 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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Ryanair Logo
20:55 - 22:10
LTN
-
DUB
1h 15mdirect
Ryanair Logo
10:30 - 11:45
DUB
-
LTN
1h 15mdirect
£40Ryanair
Fri, 16 Jan - Mon, 19 Jan
Multiple Airlines Logo
06:30 - 07:50
STN
-
DUB
1h 20mdirect
Multiple Airlines Logo
12:00 - 13:20
DUB
-
STN
1h 20mdirect
£40Multiple Airlines
Fri, 9 Jan - Sun, 11 Jan
Ryanair Logo
16:45 - 18:10
LGW
-
DUB
1h 25mdirect
Ryanair Logo
19:40 - 21:05
DUB
-
LGW
1h 25mdirect
£40Ryanair
Sat, 17 Jan - Sat, 24 Jan
Ryanair Logo
16:40 - 17:55
LTN
-
DUB
1h 15mdirect
Ryanair Logo
18:55 - 20:10
DUB
-
LTN
1h 15mdirect
£40Ryanair
Sat, 17 Jan - Sat, 24 Jan
Ryanair Logo
18:45 - 20:05
STN
-
DUB
1h 20mdirect
Ryanair Logo
18:45 - 20:05
DUB
-
STN
1h 20mdirect
£40Ryanair
Sat, 17 Jan - Sat, 24 Jan
Ryanair Logo
21:35 - 23:00
LGW
-
DUB
1h 25mdirect
Ryanair Logo
16:15 - 17:40
DUB
-
LGW
1h 25mdirect
£41Ryanair
Fri, 20 Feb - Sat, 21 Feb
Multiple Airlines Logo
06:30 - 07:50
STN
-
DUB
1h 20mdirect
Multiple Airlines Logo
18:45 - 20:05
DUB
-
STN
1h 20mdirect
£43Multiple Airlines
Fri, 2 Jan - Mon, 5 Jan
British Airways Logo
15:00 - 16:20
LCY
-
DUB
1h 20mdirect
British Airways Logo
11:10 - 12:40
DUB
-
LCY
1h 30mdirect
£61British Airways
Thu, 8 Jan - Sun, 11 Jan
British Airways Logo
11:25 - 12:45
LCY
-
DUB
1h 20mdirect
British Airways Logo
11:10 - 12:40
DUB
-
LCY
1h 30mdirect
£61British Airways
Sat, 7 Feb - Sun, 8 Feb
British Airways Logo
08:25 - 09:50
LHR
-
DUB
1h 25mdirect
British Airways Logo
08:50 - 10:25
DUB
-
LHR
1h 35mdirect
£61British Airways
Sun, 25 Jan - Wed, 28 Jan

Ryanair flights from London to Dublin

Our best Ryanair deals on London to Dublin flight tickets
Ryanair
16 Jan
LTN20:55London Luton
1h 15m
DUB22:10Dublin
19 Jan
DUB10:30Dublin
1h 15m
LTN11:45London Luton
Ryanair
17 Jan
LGW16:45London Gatwick
1h 25m
DUB18:10Dublin
24 Jan
DUB19:40Dublin
1h 25m
LGW21:05London Gatwick
Ryanair
28 Feb
STN06:30London Stansted
1h 20m
DUB07:50Dublin
1 Mar
DUB08:30Dublin
1h 20m
STN09:50London Stansted

British Airways flights from London to Dublin

Our best British Airways deals on London to Dublin flight tickets
British Airways
8 Jan
LCY15:00London City
1h 20m
DUB16:20Dublin
11 Jan
DUB11:10Dublin
1h 30m
LCY12:40London City
British Airways
7 Feb
LCY11:25London City
1h 20m
DUB12:45Dublin
8 Feb
DUB11:10Dublin
1h 30m
LCY12:40London City
British Airways
6 Jan
LCY19:25London City
1h 20m
DUB20:45Dublin
8 Jan
DUB17:00Dublin
1h 35m
LCY18:35London City

momondo Fare Finder

 
Customise your flight search to find flights from London 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 279,928 searches. Data last updated 5 December 2025.
Use the filters below to find and compare flights from London to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonDublin

LTN - DUB

LTNDUB

London Luton

Fri 16/1

20:55-22:10

Nonstop1h 15m

Dublin

Mon 19/1

10:30-11:45

Nonstop1h 15m

£40

LondonDublin

STN - DUB

STNDUB

London Stansted

Fri 9/1

06:30-07:50

Nonstop1h 20m

Dublin

Sun 11/1

12:00-13:20

Nonstop1h 20m

£40

LondonDublin

LGW - DUB

LGWDUB

London Gatwick

Sat 17/1

16:45-18:10

Nonstop1h 25m

Dublin

Sat 24/1

19:40-21:05

Nonstop1h 25m

£40

LondonDublin

LTN - DUB

LTNDUB

London Luton

Sat 17/1

16:40-17:55

Nonstop1h 15m

Dublin

Sat 24/1

18:55-20:10

Nonstop1h 15m

£40

LondonDublin

STN - DUB

STNDUB

London Stansted

Sat 17/1

18:45-20:05

Nonstop1h 20m

Dublin

Sat 24/1

18:45-20:05

Nonstop1h 20m

£40

LondonDublin

LGW - DUB

LGWDUB

London Gatwick

Fri 20/2

21:35-23:00

Nonstop1h 25m

Dublin

Sat 21/2

16:15-17:40

Nonstop1h 25m

£41

LondonDublin

STN - DUB

STNDUB

London Stansted

Fri 2/1

06:30-07:50

Nonstop1h 20m

Dublin

Mon 5/1

18:45-20:05

Nonstop1h 20m

£43

LondonDublin

LCY - DUB

LCYDUB

London City

Thu 8/1

15:00-16:20

Nonstop1h 20m

Dublin

Sun 11/1

11:10-12:40

Nonstop1h 30m

£61

LondonDublin

LCY - DUB

LCYDUB

London City

Sat 7/2

11:25-12:45

Nonstop1h 20m

Dublin

Sun 8/2

11:10-12:40

Nonstop1h 30m

£61

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Sun 25/1

08:25-09:50

Nonstop1h 25m

Dublin

Wed 28/1

08:50-10:25

Nonstop1h 35m

£61

Flights are sorted by cheapest return 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 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 to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £50. If you aren’t able to travel to Dublin during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £54.

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

On average, the least expensive day to fly to Dublin from London is on a Saturday. momondo users have found tickets for Saturday departures for as low as £100. 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 Monday because tickets tend to average around £136. 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?

Flying to Dublin from London in the evening is the least expensive time of day to depart. momondo users have found prices as low as £84 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £120 on average. Flights to Dublin from London in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London to Dublin flight route?

Fly from London Gatwick to Dublin for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around £128 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from London for as low as £94 on momondo.

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

There are 3 cabin classes available to choose from on London 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 to Dublin flight prices changed over time?

As of December 2025, prices for London to Dublin flights are approximately 62% more expensive when compared to flights at the same time last year.

When to book flights from London to Dublin

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

Cheap London to Dublin (LON to DUB) flight deals and tips

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

Best price found

£24

Fastest flight time

1h 15m

Direct flights

Every day

Airports in Dublin

1 airport
The best one-way flight to Dublin from London in the past 72 hours is £24. The best return flight deal from London to Dublin found on momondo in the last 72 hours is £49.
The fastest flight from London to Dublin takes 1h 15m
Direct flights go from London to Dublin every day.
There is 1 airport near Dublin: Dublin (DUB)
  • How far is London to Dublin by plane?

    London and Dublin are 287.9 mi apart from one another. Typically, this will take 1h 15m by plane in normal conditions.

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

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

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

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

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

Best airlines flying from London to Dublin

Compare and see reviews for airlines that fly from London to Dublin with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £28Free CancellationRating
6.8
5,212 reviews
Search Ryanair flights
British AirwaysPriceFrom £68Free CancellationRating
6.7
7,562 reviews
Search British Airways flights
Aer LingusPriceFrom £91Free CancellationRating
7.2
1,384 reviews
Search Aer Lingus flights
  • Aer Lingus Flights From London to Dublin

    Aer Lingus flight deals from London to Dublin start from £91 round-trip. Over the 118 Aer Lingus flights for this route in a normal week, average airfare is usually £161 round-trip - but some users have found much cheaper deals with momondo.

  • Ryanair Flights From London to Dublin

    Across 5,212 Ryanair reviews on momondo, the average score is 6.8/10. Ryanair flies from London to Dublin about 34 times each week, with ticket deals ranging from £28 to £70. 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
Cavan
Dundalk
Athlone
Bray
Carlingford
Malahide
Mullingar
Drogheda
Kildare
Wicklow
Enniscorthy
Gorey
Arklow
Leixlip
Naas
Maynooth
Tullamore
Portmarnock

Why use momondo?

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

Finding the right flight to Dublin from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dublin quick and easy, saving you time and money.

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 all potential London to Dublin flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Dublin from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Dublin trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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1 adult
Sun 4/1
Sun 11/1

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