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Cheap flights from the United Kingdom to Ireland from £17

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Ireland departing on 21/9. 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 the United Kingdom to Ireland

Recent return flight deals from the United Kingdom to Ireland

Ryanair Logo
23:15 - 00:10MAN-DUB
0h 55mdirect
Ryanair Logo
13:10 - 14:10DUB-MAN
1h 00mdirect
£32Ryanair
Find Deal
Fri, 19 Sep - Mon, 22 Sep
Ryanair Logo
19:00 - 20:05BRS-DUB
1h 05mdirect
Ryanair Logo
06:10 - 07:15DUB-BRS
1h 05mdirect
£32Ryanair
Find Deal
Fri, 26 Sep - Sun, 28 Sep
Ryanair Logo
06:55 - 08:00BHX-DUB
1h 05mdirect
Ryanair Logo
07:10 - 08:15DUB-BHX
1h 05mdirect
£33Ryanair
Find Deal
Sun, 21 Sep - Sun, 28 Sep
Ryanair Logo
22:45 - 23:40MAN-DUB
0h 55mdirect
Ryanair Logo
07:05 - 08:05DUB-MAN
1h 00mdirect
£33Ryanair
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Logo
15:50 - 16:50MAN-DUB
1h 00mdirect
Logo
06:55 - 07:55DUB-MAN
1h 00mdirect
£34
Find Deal
Thu, 30 Oct - Mon, 3 Nov
Logo
22:25 - 23:25MAN-DUB
1h 00mdirect
Logo
22:55 - 23:55DUB-MAN
1h 00mdirect
£36
Find Deal
Fri, 28 Nov - Mon, 1 Dec
Aer Lingus Logo
18:40 - 20:00BHX-DUB
1h 20mdirect
Aer Lingus Logo
06:40 - 07:45DUB-BHX
1h 05mdirect
£53Aer Lingus
Find Deal
Fri, 24 Oct - Wed, 29 Oct
Aer Lingus Logo
20:15 - 21:15BHX-DUB
1h 00mdirect
Aer Lingus Logo
06:30 - 07:40DUB-BHX
1h 10mdirect
£53Aer Lingus
Find Deal
Fri, 19 Sep - Sun, 21 Sep
British Airways Logo
18:15 - 19:40LHR-DUB
1h 25mdirect
British Airways Logo
08:50 - 10:25DUB-LHR
1h 35mdirect
£67British Airways
Find Deal
Mon, 5 Jan - Wed, 7 Jan
British Airways Logo
06:30 - 07:55LHR-DUB
1h 25mdirect
British Airways Logo
16:05 - 17:30DUB-LHR
1h 25mdirect
£71British Airways
Find Deal
Thu, 13 Nov - Sat, 15 Nov

Ryanair flights from United Kingdom to Ireland

Our best Ryanair deals on United Kingdom to Ireland flight tickets
Ryanair
19 Sept
MAN23:15Manchester
0h 55m
DUB00:10Dublin
22 Sept
DUB13:10Dublin
1h 00m
MAN14:10Manchester
£32
Find similar
Ryanair
21 Sept
BHX06:55Birmingham
1h 05m
DUB08:00Dublin
28 Sept
DUB07:10Dublin
1h 05m
BHX08:15Birmingham
£33
Find similar
Ryanair
3 Oct
BHX18:20Birmingham
1h 05m
DUB19:25Dublin
4 Oct
DUB13:55Dublin
1h 05m
BHX15:00Birmingham
£33
Find similar

British Airways flights from United Kingdom to Ireland

Our best British Airways deals on United Kingdom to Ireland flight tickets
British Airways
5 Jan
LHR18:15London Heathrow
1h 25m
DUB19:40Dublin
7 Jan
DUB08:50Dublin
1h 35m
LHR10:25London Heathrow
£67
Find similar
British Airways
13 Nov
LHR06:30London Heathrow
1h 25m
DUB07:55Dublin
15 Nov
DUB16:05Dublin
1h 25m
LHR17:30London Heathrow
£71
Find similar
British Airways
8 Nov
LHR08:35London Heathrow
1h 25m
DUB10:00Dublin
8 Nov
DUB16:05Dublin
1h 25m
LHR17:30London Heathrow
£72
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to Ireland 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 8 September 2025.
Use the filters below to find and compare flights from the United Kingdom to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ManchesterDublin

MAN - DUB

MANDUB

Manchester

Fri 19/9

23:15-00:10

Nonstop0h 55m

Dublin

Mon 22/9

13:10-14:10

Nonstop1h 00m

£32

BristolDublin

BRS - DUB

BRSDUB

Bristol

Fri 26/9

19:00-20:05

Nonstop1h 05m

Dublin

Sun 28/9

06:10-07:15

Nonstop1h 05m

£32

BirminghamDublin

BHX - DUB

BHXDUB

Birmingham

Sun 21/9

06:55-08:00

Nonstop1h 05m

Dublin

Sun 28/9

07:10-08:15

Nonstop1h 05m

£33

ManchesterDublin

MAN - DUB

MANDUB

Manchester

Thu 18/9

22:45-23:40

Nonstop0h 55m

Dublin

Sun 21/9

07:05-08:05

Nonstop1h 00m

£33

ManchesterDublin

MAN - DUB

MANDUB

Manchester

Thu 30/10

15:50-16:50

Nonstop1h 00m

Dublin

Mon 3/11

06:55-07:55

Nonstop1h 00m

£34

ManchesterDublin

MAN - DUB

MANDUB

Manchester

Fri 28/11

22:25-23:25

Nonstop1h 00m

Dublin

Mon 1/12

22:55-23:55

Nonstop1h 00m

£36

BirminghamDublin

BHX - DUB

BHXDUB

Birmingham

Fri 24/10

18:40-20:00

Nonstop1h 20m

Dublin

Wed 29/10

06:40-07:45

Nonstop1h 05m

£53

BirminghamDublin

BHX - DUB

BHXDUB

Birmingham

Fri 19/9

20:15-21:15

Nonstop1h 00m

Dublin

Sun 21/9

06:30-07:40

Nonstop1h 10m

£53

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Mon 5/1

18:15-19:40

Nonstop1h 25m

Dublin

Wed 7/1

08:50-10:25

Nonstop1h 35m

£67

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 13/11

06:30-07:55

Nonstop1h 25m

Dublin

Sat 15/11

16:05-17:30

Nonstop1h 25m

£71

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 Ireland from

How to get the cheapest flight ticket from United Kingdom to Ireland

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 Ireland?

The month of January is, on average, the cheapest month to fly to Ireland from United Kingdom, with most prices found around £50. If you’re not able to fly to Ireland in January, then September is your next best option. Flight prices from United Kingdom to Ireland during September average around £50.

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

The cheapest day to depart on your flight to Ireland is on a Friday when prices can be found for as low as £229. This is often the case because there is less demand to fly during this day of the week. Flights from United Kingdom to Ireland on a Monday will generally be more expensive and average around £513. 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 Ireland?

In the afternoon is the cheapest time of day to fly from United Kingdom to Ireland when you can find flight prices for as low as £133. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Ireland are more costly in the morning, with an average ticket price of £493. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest United Kingdom to Ireland flight route?

Fly from London Stansted to Shannon for the best United Kingdom - Ireland flight prices

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

You are more likely to see cheaper flights to Ireland from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around £123 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from United Kingdom for as low as £90 on momondo.

What cabin class options are available on United Kingdom to Ireland flights?

There are 3 cabin classes available to choose from on United Kingdom to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United Kingdom to Ireland flights?

No. A direct flight is the cheapest option for a flight between United Kingdom to Ireland.

Cheap United Kingdom to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Ireland

Best price found

£18

Fastest flight time

0h 55m

Direct flights

Every day

Airports in Ireland

1 airport
The best one-way flight to Ireland from United Kingdom in the past 72 hours is £18. The best return flight deal from United Kingdom to Ireland found on momondo in the last 72 hours is £32.
The fastest flight from United Kingdom to Ireland takes 0h 55m
Direct flights go from United Kingdom to Ireland every day.
There is 1 airport near Ireland: Dublin (DUB)
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to Ireland?

    Prices for flights from United Kingdom to Ireland are updated daily.

  • How many operators does momondo search for flights from United Kingdom to Ireland?

  • How old do you have to be to fly from United Kingdom to Ireland?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United Kingdom to Ireland?

Best airlines flying from United Kingdom to Ireland

Compare and see reviews for airlines that fly from United Kingdom to Ireland with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £16Free CancellationRating
6.2
113 reviews
Search Ryanair flights
RyanairPriceFrom £26Free CancellationRating
6.8
5,158 reviews
Search Ryanair flights
Aer LingusPriceFrom £43Free CancellationRating
7.2
1,262 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £66Free CancellationRating
6.7
7,354 reviews
Search British Airways flights
KLMPriceFrom £68Free CancellationRating
7.8
1,386 reviews
Search KLM flights
LoganairPriceFrom £142Free CancellationRating
8.5
18 reviews
Search Loganair flights

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Ireland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United Kingdom to Ireland. momondo saves you time and could save you money on your trip.

Can I find flights from United Kingdom to Ireland with flexible booking policies on momondo?

Yes. All flights to Ireland from United Kingdom on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from United Kingdom to Ireland?

momondo provides multiple filters to help you find the best flight to Ireland from United Kingdom. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from United Kingdom and alert you when they change.

An easier way to manage your Ireland trip

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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom £28
Flights to Corkfrom £30
Flights to Shannon, Clarefrom £31
Flights to Knockfrom £28
Flights to Milltown (Kerry)from £32
Flights to Donegalfrom £115