€21 Find Cheap Flights from the United Kingdom to Ireland

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 22/1. 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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Good to know

Low season

December

High season

August

Cheapest flight

€21
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly (7% more expensive on average)
Flight from London Gatwick Airport 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 
ConnerFlew with Aer LingusNCL-DUBSept 2024
Pick a seat near the back of you want to get off quicker
JamesFlew with Aer LingusBHX-DUBJan 2024
Bring a big wallet as Dublin prices are ridiculous

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.

See more FAQs

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.
See more tips

Top 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.
7.1
Aer LingusOverall score based on 1077 reviews
7.2Boarding
6.4Food
6.8Entertainment
7.0Comfort
7.9Crew
Airline reviews

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

2.0 MediocreGino, Jan 2025DUB - BOS
Read more Aer Lingus reviews

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

Loved it! Best airline to fly with. Nice crew, good planes, good food!

Good flight, awful, vindictive, vile customer services in T5 Heathrow.

Denied boarding passes for connecting flight. Missed connection as a result. Customer services T5 Heathrow airport vile, arrogant people who lied to us and threatened us.

Ok we did get an upgrade and the flight was delayed 45 minutes BUT without any bias. The crew were excellent, friendly, efficient and verging on exuberant, they all were so happy to do their jobs. Food excellent and the new safety video is fun to watch.

Reliable, great value, but not outstanding in any aspect. This is similar to the experience you get in most international carriers like Etihad or Delta.

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

Flight got diverted because of an emergency and the crew were fantastic and probably saved that passenger’s life. While in emergency landing some measures could have been taken to prevent additional delays. In general not great experience with BA. I used to fly BA years ago all the time, very disappointed by the whole experience, seats were tight, bathrooms tight.

Business class area too small and chair and equipment not comfortable .

Lost my luggage in London Was double charged for luggage

I enjoyed the flight. I did find it strange that when I arrived at my seat although I had paid for a window seat that I was assigned a middle seat. Thankfully I was between a couple and they wanted to sit together. Please do a better job with this BA!

BAD!!! due to delay I missed my connection in MEX, had to pay for hotel and new flight for next morning increasing my spent for $1,000 usd

Book cheap flights from the United Kingdom to Ireland

Recent return flight deals

7/2Fri
directRyanair
1h 05mBHX-DUB
9/2Sun
directRyanair
1h 05mDUB-BHX
€33
24/2Mon
directRyanair
1h 20mLGW-DUB
28/2Fri
directRyanair
1h 30mDUB-LGW
€33
18/2Tue
directRyanair
1h 00mMAN-DUB
18/2Tue
directRyanair
1h 00mDUB-MAN
€35
4/2Tue
direct
1h 00mMAN-DUB
6/2Thu
direct
1h 00mDUB-MAN
€36
4/2Tue
direct
1h 00mMAN-DUB
4/2Tue
direct
1h 00mDUB-MAN
€37
7/2Fri
directRyanair
1h 05mEDI-DUB
10/2Mon
directRyanair
1h 05mDUB-EDI
€41
2/2Sun
directAer Lingus
1h 00mMAN-DUB
11/2Tue
directAer Lingus
1h 15mDUB-MAN
€52
8/2Sat
directAer Lingus
1h 20mBHX-DUB
9/2Sun
directAer Lingus
1h 05mDUB-BHX
€57
17/5Sat
directBritish Airways
1h 25mLHR-DUB
15/8Fri
directBritish Airways
1h 30mDUB-LHR
€74
13/5Tue
directBritish Airways
1h 25mLHR-DUB
27/5Tue
directBritish Airways
1h 35mDUB-LHR
€76

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Recent one-way flight deals

22/1Wed
directRyanair
1h 20mLGW-DUB
€21
19/2Wed
directRyanair
1h 15mLTN-DUB
€21
21/1Tue
directRyanair
1h 00mMAN-DUB
€26
1/2Sat
directRyanair
1h 00mMAN-DUB
€31
13/2Thu
directAer Lingus
1h 05mBHX-DUB
€39
31/1Fri
directAer Lingus
1h 00mMAN-DUB
€42
13/6Fri
directBritish Airways
1h 25mLHR-DUB
€47
12/6Thu
directBritish Airways
1h 25mLHR-DUB
€48
27/1Mon
1 stop
5h 05mLTN-DUB
€59
3/3Mon
1 stop
11h 20mSTN-DUB
€59

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Last minute flights to Ireland

Last minute flight, train and bus deals

19/1Sun
directRyanair
1h 15mLTN-DUB
22/1Wed
directRyanair
1h 15mDUB-LTN
€43
18/1Sat
directRyanair
1h 20mSTN-DUB
20/1Mon
directRyanair
1h 20mDUB-STN
€43
19/1Sun
direct
1h 00mMAN-DUB
21/1Tue
direct
1h 00mDUB-MAN
€43
19/1Sun
direct
1h 00mMAN-DUB
25/1Sat
direct
1h 05mDUB-MAN
€53
21/1Tue
directAer Lingus
1h 00mMAN-DUB
22/1Wed
directAer Lingus
1h 05mDUB-MAN
€87
19/1Sun
directBritish Airways
1h 25mLHR-DUB
19/1Sun
directBritish Airways
1h 20mDUB-LHR
€96
20/1Mon
directAer Lingus
1h 20mBRS-DUB
22/1Wed
directAer Lingus
1h 25mDUB-BRS
€101
18/1Sat
directBritish Airways
1h 20mLHR-DUB
19/1Sun
directBritish Airways
1h 20mDUB-LHR
€120
20/1Mon
directRyanair
1h 00mMAN-DUB
23/1Thu
directRyanair
1h 00mDUB-MAN
€160
17/1Fri
multi-stopRyanair
3h 10mSTN-DUB
18/1Sat
directRyanair
1h 20mDUB-STN
€257

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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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