$21 Find Cheap Flights from the United Kingdom to Ireland

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What is the cheapest flight to Ireland?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Ireland from the United Kingdom found in the last 72 hours was to Dublin, at $23 round-trip. The most popular route is Birmingham (BHX) to Dublin (DUB) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $23.

How much is a flight to Ireland?

The average and cheapest price for all round-trip flights to Ireland from each origin found by users searching on KAYAK in the last month.

A flight to Ireland costs $272 on average. The cheapest price found on KAYAK in the last 2 weeks was $15 for the route Edinburgh (EDI) to Dublin (DUB). The most popular routes on KAYAK are Birmingham to Dublin which costs $853 on average, and Glasgow to Dublin, which costs $110 on average.

See prices from:

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 June, when tickets cost $62 (return) on average. On the other hand, the most expensive months are September and October, when the average cost of round-trip tickets is $278 and $274 respectively.

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 the flight from the United Kingdom to Ireland, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 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 $74.


Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$21
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Birmingham to Dublin

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

Insights shared by verified travelers who flew the route from the United Kingdom to Ireland 
DeborahFlew with Aer LingusLHR-DUBJun 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 LingusLHR-DUBJun 2025
If you’re doing a transfer speak to someone at the desk don’t use an automated kiosk
KillianFlew with British AirwaysLCY-DUBMay 2025
Dublin airport a shambles when it comes to collecting luggage or getting a cab. Allow plenty of extra time.
ThomasFlew with Aer LingusLHR-DUBOct 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 can I take my pet on board when travelling to Ireland?

    Some of the popular airlines flying to Ireland are RyanAir, British Airways and Aer Lingus, and all of these airlines typically allow you to travel with your furry friends. Check the individual rules for each airline before you book to ensure you fit the guidebook.

  • I am flying to Galway. What is the recommended airport to fly into?

    When looking to find cheap flights to Ireland, specifically Galway, a recommended airport to fly into on a direct flight from London Gatwick Airport (LGW) is Shannon Airport. It is only around a 1 hour drive to Galway from the terminal.

  • 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 travelers 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 round-trip 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 Friday where round-trip tickets can be as cheap as $265. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $439 on average.

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

    The cheapest time of day to fly to Ireland is generally in the evening, when round-trip flights cost $176 on average. Morning departures are around 269% more expensive than evening flights, on average. 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 $650.

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.
  • If you want to find cheap flights to Ireland, then you should consider choosing a flight with a layover. This will make the journey longer but you can save some cash. Some of the popular layover destinations en route to Ireland include Italy’s Milan Malpensa Airport (MXP), Edinburgh Airport (EDI) in Scotland, Spain’s Adolfo Suarez Madrid–Barajas Airport (MAD) and more.
  • Looking to find cheap flights to Ireland? Dublin Airport (DUB) is a popular airport to fly into and is easily accessible from the main town of Dublin. The airport is only about 9.5 miles (15 km) from the town centre, taking around 30 to 45 minutes to reach by car, taxi or bus, depending on traffic.
  • If you are planning on doing the famous Ring Of Kerry circular route, which is a scenic loop drive on the Iveragh Peninsula, then you should fly into Kerry Farranfore Airport (KIR) or Shannon Airport (SNN); these are airports that are close to the start of the circuit.
  • If you are flying into Dublin Airport and need to have an overnight stay and rest before the next leg of your journey, you can stay at Maldron Hotel Dublin Airport. It overlooks Terminal 2 and is roughly a mere 3min walk from the terminals, but they also provide a shuttle service. Alternatively, there is a luxury Radisson Blu on the Dublin Airport grounds, also offering a free shuttle.

Reviews of the top 3 airlines serving 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.
7.1
Aer LingusOverall score based on 1141 reviews
8.0Crew
6.4Food
7.2Boarding
6.8Entertainment
7.0Comfort
Airline reviews

The ease of boarding was good. I wish they had something to eat on the plane.

8.0 ExcellentBenjamin, Jun 2025LHR - DUB
Read more Aer Lingus reviews

The ease of boarding was good. I wish they had something to eat on the plane.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. The check in desk wasn’t even opened on time (3 hours prior to departure) and there was no communication about when it would open or why there was a delay. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

Seats were less comfortable and tight from Newark to Dublin, than my second flight ( small segment from Dublin to Lyon). Movie audio was with frying sound overall. Yet the worst was as follows: one male, (dark hair , glasses on) from the crew member was so cold and rough, while I remained with constancy polite and kind. Per exple with the noise level I could not hear him at first for beverages, he rolled his eyes at the third times I finally heard him. From the start, loading my small hand bags , he directly spoke to me and said “ I had to keep my shopping bad by my seat, under , while there was sufficient room and I was among the last to sit. I show him the space , his face was always dull, stoic, not welcoming as the usual crew members from any airline companies are. When I think of my experience I liard w Aer Lingus, this is the image that gets back to me. Needless to say that as a passenger and client, I felt belittled since all this happened in front of the surrendering passengers. It s an affront and not a pleasant feeling especially when being traveling which oftentimes involves stress with carrying, and making it on time. I m not happy with the experience I had to be honest and I fly four times a year. Thank you for allowing me to share this statement with your company.

Really helpful staff at the airport and the flight was comfortable with good entertainment options and food service

The flight was delayed by about an hour, but the staff and signs at the airport never actually said it was delayed. At the expected boarding time, we were told we would be boarding in about 10 minutes, then 20 minutes passed, and were told again that we would board in about 10 minutes. That happened multiple times, such that "10 minutes" turned into an hour.

The flight was delayed by about an hour, but the staff and signs at the airport never actually said it was delayed. We were told we'd be boarding in about 10 minutes, then 20 minutes passed, and were told again that we would board in about 10 minutes. That happened multiple times, such that "10 minutes" turned into an hour.

It was fine. We were delayed leaving but a situation of too many planes, not the airlines fault.

One cold drinks service. No snacks with drinks. No tomato juice or apple juice, coke - only fanta or sprite then ran out of that. Went to gally after meal service no one there / no self service for water at least. Waited 25 min for cabin crew to assist. No recycling of cardboard/ plastic - all put to garbage. Breakfast was a nutrigrain bar and an orange juice. Also I'm sure I booked a flight with checked luggage allowance but had to buy extra when I had my booking confirmation. Movies were good. Chairs comfy. Pillow and blanket and ac vents.

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

It was appalling, full of young people who were drunk and disobeying instructions to sit down. Crew did nothing to enforce. There was a Ryanair pilot sitting in the aisle opposite me who talked through out the safety briefing so loudly I couldn’t hear. Whole thing felt unsafe

Delayed for 2 hours lack of communication no refreshments as promised and the drinks on board were not as ordered and refused to refund

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.

Straight forward checking as long as you have completed every single detail online, prior to checking day. Efficient boarding, seating is ok for a two hour flight. Fulfilledour travel requirements from Manchester to Marseille.

I couldn’t understand the aircraft tannoy announcements I was in seat 20C - nobody in our row could either. Speakers a bit too quiet plus messages read out too fast. Otherwise excellent flight. (Flight delayed by 50 mins)

I bought my flight, insurance etc early and paid over £200. But had i waited until closer the time the price was much cheaper, i appreciate that it could've been more expensive but it wasn't. A better discount for booking early would be better than your current one

The flight arrived within 15 minutes of schedule. We hate the cattle-like boarding process seen often in Europe. After your boarding pass is checked by the airline staff, you wait standing up in an area with no seating for several minutes.

ontime and super quick boarding and disembarking. I made it in 6 min from airplane through passport control to the train platformin Cologne. Amazingly quick airport.

There plane had a technical pricken so we had to disembark, but the replacement aircraft was provided within one hour so there was not much delay.

Miserable staff did not want to be there. Very poor atmosphere boarding. Then just basic flight.

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

Only for BA because we had to get to Edinburgh at a certain time. Baggage lost, late boarding with only one person checking, again, our passports and boarding passes until the despatch controller had to step in to get us away. Will never fly BA again.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

They lost my luggage. Lady who was helping with it in Austin was rude. Not very helpful!

Waited 3.25 hours in plane only to have the flight cancelled.

The business class seat was an uncomfortable conversion of a main cabin seat well below the quality of even the budget carriers in the US. I would have never paid for business class if would have known I get the same seat as main cabin. BA has gone down hill significantly in this class of service.

Book cheap flights from the United Kingdom to Ireland

Recent round-trip flight deals

7/17Thu
nonstopRyanair
1h 05mBHX-DUB
7/20Sun
nonstopRyanair
1h 05mDUB-BHX
$39
7/31Thu
nonstopRyanair
1h 05mEDI-DUB
8/5Tue
nonstopRyanair
1h 05mDUB-EDI
$39
8/15Fri
nonstopAer Lingus
1h 00mBHX-DUB
8/22Fri
nonstopAer Lingus
1h 10mDUB-BHX
$66
7/23Wed
nonstop
0h 55mMAN-DUB
7/27Sun
nonstop
1h 05mDUB-MAN
$70
11/28Fri
nonstop
1h 00mMAN-DUB
12/1Mon
nonstop
1h 00mDUB-MAN
$88
8/11Mon
nonstopBritish Airways
1h 25mLHR-DUB
8/13Wed
nonstopBritish Airways
1h 40mDUB-LHR
$96
7/29Tue
nonstopBritish Airways
1h 30mLHR-DUB
8/5Tue
nonstopBritish Airways
1h 35mDUB-LHR
$99
7/29Tue
nonstopAer Lingus
1h 25mLHR-SNN
8/5Tue
nonstopAer Lingus
1h 25mSNN-LHR
$136
10/11Sat
1 stopKLM
7h 40mLHR-ORK
10/15Wed
1 stopKLM
11h 35mORK-LHR
$212
9/12Fri
1 stopKLM
6h 20mLHR-ORK
9/14Sun
1 stopKLM
4h 45mORK-LHR
$259

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7/10Thu
nonstopRyanair
1h 05mBHX-DUB
$21
7/31Thu
nonstopRyanair
1h 05mEDI-DUB
$21
7/12Sat
nonstopRyanair
0h 55mMAN-DUB
$21
10/27Mon
nonstopRyanair
1h 00mMAN-DUB
$38
8/5Tue
nonstopAer Lingus
1h 15mEDI-DUB
$53
9/22Mon
nonstopBritish Airways
1h 25mLHR-DUB
$63
7/8Tue
nonstopAer Lingus
1h 00mMAN-DUB
$64
8/27Wed
nonstopBritish Airways
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Last minute flights to Ireland

Last minute flight, train and bus deals

7/4Fri
nonstopRyanair
1h 05mBHX-DUB
7/6Sun
nonstopRyanair
1h 05mDUB-BHX
$72
7/6Sun
nonstopRyanair
0h 55mMAN-DUB
7/7Mon
nonstopRyanair
1h 00mDUB-MAN
$72
7/4Fri
nonstop
1h 05mLPL-DUB
7/6Sun
nonstop
0h 55mDUB-LPL
$91
7/3Thu
nonstopBritish Airways
1h 25mLHR-DUB
7/17Thu
nonstopBritish Airways
1h 30mDUB-LHR
$130
7/7Mon
nonstopAer Lingus
1h 15mEDI-DUB
7/14Mon
nonstopAer Lingus
1h 15mDUB-EDI
$134
7/3Thu
nonstopBritish Airways
1h 25mLHR-DUB
7/15Tue
nonstopBritish Airways
1h 35mDUB-LHR
$140
7/4Fri
nonstop
0h 55mMAN-DUB
7/7Mon
multi-stop
6h 50mDUB-MAN
$140
7/7Mon
nonstopAer Lingus
1h 25mLHR-SNN
7/8Tue
nonstopAer Lingus
1h 25mSNN-LHR
$200
7/3Thu
multi-stopSWISS
13h 10mMAN-DUB
7/7Mon
multi-stopSWISS
13h 25mDUB-MAN
$280
7/3Thu
multi-stopSWISS
25h 50mLHR-DUB
7/7Mon
multi-stopSWISS
12h 25mDUB-LHR
$293

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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.

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