€19 Find Cheap Flights from the United Kingdom to Ireland – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from the United Kingdom to Ireland departing on 8/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from the United Kingdom to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from the United Kingdom to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from the United Kingdom to Ireland

Tue, 4 Aug - Wed, 5 Aug
Ryanair Logo
21:40 - 22:50
BHX
-
DUB
1h 10mdirect
Ryanair Logo
07:00 - 08:05
DUB
-
BHX
1h 05mdirect
€35Ryanair
Wed, 5 Aug - Fri, 7 Aug
Ryanair Logo
20:30 - 21:30
MAN
-
DUB
1h 00mdirect
Ryanair Logo
14:55 - 15:55
DUB
-
MAN
1h 00mdirect
€35Ryanair
Thu, 20 Aug - Mon, 24 Aug
Ryanair Logo
21:30 - 22:35
BHX
-
DUB
1h 05mdirect
Ryanair Logo
16:10 - 17:15
DUB
-
BHX
1h 05mdirect
€36Ryanair
Fri, 28 Aug - Wed, 2 Sep
Ryanair Logo
19:30 - 20:30
MAN
-
DUB
1h 00mdirect
Ryanair Logo
06:30 - 07:30
DUB
-
MAN
1h 00mdirect
€36Ryanair
Fri, 7 Aug - Sun, 9 Aug
Multiple Airlines Logo
20:10 - 21:10
MAN
-
DUB
1h 00mdirect
Multiple Airlines Logo
23:10 - 00:10
DUB
-
MAN
1h 00mdirect
€41Multiple Airlines
Sat, 19 Sep - Wed, 30 Sep
British Airways Logo
06:15 - 07:40
LHR
-
DUB
1h 25mdirect
British Airways Logo
20:30 - 21:45
DUB
-
LHR
1h 15mdirect
€77British Airways
Mon, 9 Nov - Thu, 26 Nov
British Airways Logo
08:25 - 09:50
LHR
-
DUB
1h 25mdirect
British Airways Logo
20:40 - 22:00
DUB
-
LHR
1h 20mdirect
€80British Airways
Mon, 10 Aug - Tue, 25 Aug
Aer Lingus Logo
22:25 - 23:50
LHR
-
ORK
1h 25mdirect
Aer Lingus Logo
20:30 - 21:45
ORK
-
LHR
1h 15mdirect
€80Aer Lingus
Tue, 11 Aug - Tue, 25 Aug
Aer Lingus Logo
22:25 - 23:50
LHR
-
ORK
1h 25mdirect
Aer Lingus Logo
20:30 - 21:45
ORK
-
LHR
1h 15mdirect
€89Aer Lingus
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
06:30 - 16:50
SEN
-
DUB
10h 20m
1 stop
Multiple Airlines Logo
21:35 - 07:55
DUB
-
SEN
10h 20m
1 stop
€170Multiple Airlines
Booking Insights

KAYAK's insights & trends for flights to Ireland

Get data-powered insights and trends into flights to Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Ireland?

These are the best return prices found by users searching on KAYAK in the last 5 days.

The cheapest ticket to Ireland from the United Kingdom found in the last 5 days was to Dublin, at €15 return. The most popular route is Birmingham (BHX) to Dublin (DUB) and the cheapest return ticket found on this route in the last 5 days was €15.

What is the cheapest month to fly from the United Kingdom to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United Kingdom to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from the United Kingdom to Ireland is January, when tickets cost €44 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is €88 and €85 respectively.

What is the cheapest time of day to fly to Ireland?

The average price for all round-trip flights from the United Kingdom to Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ireland is generally in the afternoon, when retur flights cost €108 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Ireland is generally in the morning, which is peak travel time and where the average cost of a ticket is €171.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from the United Kingdom to Ireland, you should book around 5 weeks before departure, which saves you about 37% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Which is the cheapest airport to fly into in Ireland?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Ireland is Knock Intl Airport (NOC), with an average flight price of €18.

Good to know

Low season

January

Cheapest flight

€19
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly (13% more expensive on average)
Flight from Birmingham to Dublin

Flights from the United Kingdom to Ireland: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from the United Kingdom to Ireland 
DeborahFlew with Aer Lingus
LHR
-
DUB
Jun 2025
Heathrow seems to have a lot of plane traffic so make sure you have a good cushion of time if you have connecting flights. I had a 2 hour layover but ended up having to run to make sure I got to the other gate in time.
Verified travelerFlew with Aer Lingus
LHR
-
DUB
Jun 2025
If you’re doing a transfer speak to someone at the desk don’t use an automated kiosk
KillianFlew with British Airways
LCY
-
DUB
May 2025
Dublin airport a shambles when it comes to collecting luggage or getting a cab. Allow plenty of extra time.
ThomasFlew with Aer Lingus
LHR
-
DUB
Oct 2024
You will likely have to walk a lot more than you might expect to make a connection.

FAQs for booking flights from the United Kingdom to Ireland

  • Do I need to use my passport to enter Ireland?

    Ireland, along with the UK, is a member of the Common Travel Area. British citizens travelling from the UK will not require a passport when entering Ireland. However, Irish immigration officers will look at your ID when you arrive in Ireland and may ask to see your passport, especially if you were not born in the UK. If you hold British Citizenship and use your passport to enter Ireland, you do not require a visa. Just ensure that your passport will be valid for your entire stay in Ireland.

  • Which flights to Ireland should I look at if I want to see the Cliffs of Moher?

    The Cliffs of Moher are located on Ireland’s west coast, so you should look at flights to Ireland that fly to Shannon Airport, which is the primary airport serving the west coast and also the closest. From the airport, you can hire a car and drive approx. 1h, take a taxi, or travel by bus (approx. 2h 40min, the journey is not direct).

  • Which flights to Ireland should I look at if I want to see the Rock of Cashel?

    You should look at flights to Ireland that land in Shannon Airport, as it is the closest major international airport to Cashel (about 54 mi). From the airport, you can choose to rent a car and drive approx. 1h, take a taxi, or catch a bus (approx. 4h).

  • Where can I see the Book of Kells?

    The Book of Kells Exhibition is located in Trinity College Dublin, so the nearest airport is Dublin airport. Dublin airport offers a service known as Aircoach, most of which will travel through central Dublin, where Trinity College is located. This is the most convenient way to travel from the airport, but you can still choose to take a taxi or bus.

  • How does KAYAK find such low prices on flights from the United Kingdom to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from the United Kingdom to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from the United Kingdom to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United Kingdom to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from the United Kingdom to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from the United Kingdom to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from the United Kingdom to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from the United Kingdom to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Ireland?

    Based on KAYAK data, the cheapest day to fly to Ireland is Saturday when return tickets can be as cheap as €99. On the other hand, the most expensive day to fly is Monday, when return prices are €680 on average.

Top tips for finding a cheap flight out of the United Kingdom

  • The 5 main international airports in Ireland are: Dublin Airport (DUB) on the east coast, Cork Airport (ORK) on the south coast, Knock Airport (NOC) in the north west and the airport of Shannon (SNN) on the west coast. Each airport is the primary airport of its respective region, so you can choose which flights to Ireland suit you best based on where you would like to visit.
  • Certain airports in the UK also offer flights to Donegal (CFN) and Kerry airports (KIR). These airports are less busy but may only have very basic facilities.
  • Dublin Airport is probably the best one to fly to if you would like to visit multiple cities, as it offers the most options when it comes to domestic flights throughout Ireland. Cork Airport is also another good option.
  • Car seats are mandatory for children from 8 months to 4 years old when travelling in a car, so you might have to bring your own or rent one if you are going to be travelling by car in Ireland.
  • The best way to travel around Ireland is by car or public transport, given its size. However, you may need to take a plane to visit the Aran Islands from the mainland.

Reviews of the top 3 airlines flying from the United Kingdom to Ireland

 
Need help choosing which airline to fly with from the United Kingdom to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1670 reviews
6.6Food
7.0Entertainment
8.1Crew
7.4Boarding
7.2Comfort
Airline reviews

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

6.0 GoodScott, Jun 2026
MAN - DUB
Read more Aer Lingus reviews

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

Caring & friendly crew. Most important: got us SAFELY to our destination!

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

I liked almost everything (e.g. ease of booking, price, punctuality, efficiency, friendliness, courtesy). A slam landing in Dublin airport took some of the gloss off it, though. Being able to paste here the text of the review of the same flight that I just wrote for Ryanair would make me feel better about Kayak too.

Take off was great but landing is always with a bump.

Staff were very professional. Much better than the outgoing flight from Dublin. Seat cushions were practically non existent. Making for a very uncomfortable flight.

They were extremely unprofessional and unhelpful at check in. They did not understand laws related to Spanish residents flying with family It was very discriminatory the way we were treated.

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

Flight was fine, crew were good, cabin director spoke far too much; disembarking at Dublin Airport and entry into the terminal building was just dreadful, like entering the back door of a neglected factory building. What an awful impression it must give to first time visitors to Ireland.

all fine - did not have food - there was no entertainment

Delayed delayed delayed and then cancelled very late not allowing for too much time to find a room for the night

Ryanair is always shite. Slowest boarding possible in the most uncomfortable way. It’s like they are are tad sadistic.

The boarding process was fast and easy , but the airport sign was not up on the board, so it was hard to know the correct gate , on the airplane there was NO Snacks and NO water …. Everything needs to be purchase …. It’s not worthy for the price we paid !

Waiting area not big enough for all the passengers, no airport lounge.

Really appreciated the care, attention and friendliness of cabin crew. Very comfortable, prompt and efficient flight.

People were nice. Seats are so cramped my knees had to be pressed into the seat in front of me.

Dreadfully long wait for bags at Dublin coming off an already late flight.

Flight was delayed and there was boarding pass and flight information errors resulting in confusion and stress

Aer Lingus was the actual airline so they handled everything professionally.

Excellent service smooth flight f or the most part food was right now.I'm expectedly good.

The flight was delayed, and delayed some more. But there was more room on this plane than the one that flew oversees! There was no food or entertainment, but that’s ok, it’s a short flight

Was delayed for checks after evidence of bird strike, good call

The plane was delayed. That was only downside to flight. Crew was very nice

Everything you need to know for your flight to Ireland

Cabin class types available on flights to Ireland

Cabin classes available on flights to Ireland. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.