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Cheap flights from Ireland to the United Kingdom 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 Ireland to the United Kingdom departing on 19/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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Find the cheapest flights from Ireland to the United Kingdom

Recent return flight deals from Ireland to the United Kingdom

Enter your travel dates to find the best prices.
Ryanair Logo
20:30 - 21:35
DUB
-
BHX
1h 05mdirect
Ryanair Logo
11:00 - 12:05
BHX
-
DUB
1h 05mdirect
€37Ryanair
Fri, 9 Jan - Mon, 26 Jan
Ryanair Logo
21:45 - 22:40
DUB
-
LPL
0h 55mdirect
Ryanair Logo
07:10 - 08:05
LPL
-
DUB
0h 55mdirect
€37Ryanair
Thu, 1 Jan - Sun, 4 Jan
Ryanair Logo
14:00 - 15:00
DUB
-
LBA
1h 00mdirect
Ryanair Logo
07:55 - 08:55
LBA
-
DUB
1h 00mdirect
€37Ryanair
Mon, 19 Jan - Mon, 26 Jan
Ryanair Logo
20:30 - 21:35
DUB
-
BHX
1h 05mdirect
Ryanair Logo
12:40 - 13:45
BHX
-
DUB
1h 05mdirect
€38Ryanair
Fri, 9 Jan - Mon, 12 Jan
Multiple Airlines Logo
13:05 - 14:05
DUB
-
MAN
1h 00mdirect
Multiple Airlines Logo
20:10 - 21:10
MAN
-
DUB
1h 00mdirect
€39Multiple Airlines
Tue, 13 Jan - Wed, 14 Jan
Multiple Airlines Logo
11:45 - 12:50
DUB
-
BHX
1h 05mdirect
Multiple Airlines Logo
12:40 - 13:45
BHX
-
DUB
1h 05mdirect
€50Multiple Airlines
Fri, 9 Jan - Mon, 12 Jan
British Airways Logo
20:40 - 22:00
DUB
-
LHR
1h 20mdirect
British Airways Logo
11:05 - 12:35
LHR
-
DUB
1h 30mdirect
€70British Airways
Tue, 3 Feb - Tue, 10 Feb
British Airways Logo
20:40 - 22:00
DUB
-
LHR
1h 20mdirect
British Airways Logo
15:30 - 17:00
LHR
-
DUB
1h 30mdirect
€73British Airways
Thu, 5 Feb - Sat, 14 Feb
Aer Lingus Logo
07:00 - 08:45
DUB
-
SOU
1h 45mdirect
Aer Lingus Logo
20:10 - 21:50
SOU
-
DUB
1h 40mdirect
€97Aer Lingus
Sun, 1 Feb - Sun, 8 Feb
Aer Lingus Logo
07:00 - 08:45
DUB
-
SOU
1h 45mdirect
Aer Lingus Logo
09:30 - 11:10
SOU
-
DUB
1h 40mdirect
€100Aer Lingus
Fri, 9 Jan - Sun, 11 Jan

British Airways flights from Ireland to United Kingdom

Our best British Airways deals on Ireland to United Kingdom flight tickets
British Airways
3 Feb
DUB20:40Dublin
1h 20m
LHR22:00London Heathrow
10 Feb
LHR11:05London Heathrow
1h 30m
DUB12:35Dublin
€70
Find similar
British Airways
5 Feb
DUB20:40Dublin
1h 20m
LHR22:00London Heathrow
14 Feb
LHR15:30London Heathrow
1h 30m
DUB17:00Dublin
€73
Find similar
British Airways
2 Feb
DUB20:40Dublin
1h 20m
LHR22:00London Heathrow
9 Feb
LHR13:35London Heathrow
1h 30m
DUB15:05Dublin
€77
Find similar

Aer Lingus flights from Ireland to United Kingdom

Our best Aer Lingus deals on Ireland to United Kingdom flight tickets
Aer Lingus
9 Jan
DUB06:30Dublin
1h 05m
MAN07:35Manchester
12 Jan
MAN08:05Manchester
1h 00m
DUB09:05Dublin
€75
Find similar
Aer Lingus
10 Jan
DUB06:30Dublin
1h 05m
MAN07:35Manchester
11 Jan
MAN17:10Manchester
1h 15m
DUB18:25Dublin
€78
Find similar
Aer Lingus
1 Jan
DUB18:15Dublin
1h 00m
MAN19:15Manchester
2 Jan
MAN20:40Manchester
1h 10m
DUB21:50Dublin
€95
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to United Kingdom 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 13,528 searches. Data last updated 21 December 2025.
Use the filters below to find and compare flights from Ireland to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Fri 9/1

20:30-21:35

Nonstop1h 05m

Birmingham

Mon 26/1

11:00-12:05

Nonstop1h 05m

€37

DublinLiverpool

DUB - LPL

DUBLPL

Dublin

Thu 1/1

21:45-22:40

Nonstop0h 55m

Liverpool J. Lennon

Sun 4/1

07:10-08:05

Nonstop0h 55m

€37

DublinLeeds

DUB - LBA

DUBLBA

Dublin

Mon 19/1

14:00-15:00

Nonstop1h 00m

Leeds/Bradford

Mon 26/1

07:55-08:55

Nonstop1h 00m

€37

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Fri 9/1

20:30-21:35

Nonstop1h 05m

Birmingham

Mon 12/1

12:40-13:45

Nonstop1h 05m

€38

DublinManchester

DUB - MAN

DUBMAN

Dublin

Tue 13/1

13:05-14:05

Nonstop1h 00m

Manchester

Wed 14/1

20:10-21:10

Nonstop1h 00m

€39

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Fri 9/1

11:45-12:50

Nonstop1h 05m

Birmingham

Mon 12/1

12:40-13:45

Nonstop1h 05m

€50

DublinLondon

DUB - LHR

DUBLHR

Dublin

Tue 3/2

20:40-22:00

Nonstop1h 20m

London Heathrow

Tue 10/2

11:05-12:35

Nonstop1h 30m

€70

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 5/2

20:40-22:00

Nonstop1h 20m

London Heathrow

Sat 14/2

15:30-17:00

Nonstop1h 30m

€73

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Sun 1/2

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 8/2

20:10-21:50

Nonstop1h 40m

€97

DublinSouthampton

DUB - SOU

DUBSOU

Dublin

Fri 9/1

07:00-08:45

Nonstop1h 45m

Southampton Eastleigh

Sun 11/1

09:30-11:10

Nonstop1h 40m

€100

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to the United Kingdom from

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

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 United Kingdom?

The month of January is, on average, the cheapest month to fly to United Kingdom from Ireland, with most prices found around €61. The month of September is another great option to travel to United Kingdom, with average flight prices from Ireland averaging around €73.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart on your flight to United Kingdom is on a Friday when prices can be found for as low as €258. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €652.

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

Flying to United Kingdom from Ireland in the evening is the least expensive time of day to depart. momondo users have found prices as low as €205 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to United Kingdom, so prices are often more expensive at around €744 per ticket.

What is the cheapest Ireland to United Kingdom flight route?

Fly from Dublin to Birmingham for the best Ireland - United Kingdom flight prices

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around €141 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Ireland for as low as €105 on momondo.

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

There are 3 cabin classes available to choose from on Ireland to United Kingdom 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 Ireland to United Kingdom flights?

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

Cheap Ireland to United Kingdom flight deals and tips

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

Best price found

€34

Fastest flight time

0h 55m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from Ireland in the past 72 hours is €34. The best return flight deal from Ireland to United Kingdom found on momondo in the last 72 hours is €41.
The fastest flight from Ireland to United Kingdom takes 0h 55m
Direct flights go from Ireland to United Kingdom every day.
There are 1,286 airports in United Kingdom. From Ireland there are direct flights to Birmingham (BHX), Liverpool J. Lennon (LPL), Leeds/Bradford (LBA), Manchester (MAN).
Search flight deals

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

    Prices for flights from Ireland to United Kingdom refresh daily.

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

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

    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 Ireland to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents required for your trip to United Kingdom 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 licence, and a passport valid for six-months after you plan to arrive at United Kingdom. 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 Ireland to United Kingdom?

Best airlines flying from Ireland to United Kingdom

Compare and see reviews for airlines that fly from Ireland to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom €40Free CancellationRating
6.9
5,221 reviews
Search Ryanair flights
Aer LingusPriceFrom €47Free CancellationRating
7.2
1,406 reviews
Search Aer Lingus flights
RyanairPriceFrom €48Free CancellationRating
6.4
119 reviews
Search Ryanair flights
British AirwaysPriceFrom €84Free CancellationRating
6.7
7,600 reviews
Search British Airways flights

Why use momondo?

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

It is quick and easy to find Ireland to United Kingdom 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 United Kingdom that suits you.

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

Yes. momondo enables you to select and highlight flights to United Kingdom from Ireland with this policy.

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

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 United Kingdom from Ireland.

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

If you are not ready to book a flight from Ireland to United Kingdom now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United Kingdom and let you know when they change.

An easier way to manage your United Kingdom trip

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Find better results for your trip to the United Kingdom

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom €26
Flights to Manchesterfrom €37
Flights to Belfastfrom €91
Flights to Edinburghfrom €26
Flights to Birminghamfrom €35
Flights to Glasgowfrom €37
Flights to Bristolfrom €38
Flights to Liverpoolfrom €37
Flights to Newcastle upon Tynefrom €38
Flights to Leedsfrom €36
Flights to Aberdeenfrom €94
Flights to Cardifffrom €33