€17 Find Cheap Flights from London 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 London to Ireland departing on 12/8. 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.
1 adult
1 adult, Economy

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Best Ireland Flight Deals from London

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect€32
Cork
Corkdirect€37
Shannon
Shannondirect€45
Knock
Knockdirect€38
Donegal
Donegal1 stop€155
Milltown (Kerry)
Milltown (Kerry)direct€49
Dublin
Dublindirect€32
Cork
Corkdirect€37
Shannon
Shannondirect€45
Knock
Knockdirect€38
Donegal
Donegal1 stop€155
Milltown (Kerry)
Milltown (Kerry)direct€49

Cheap Flights from London to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London 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 London to Ireland

wt., 12 sie - wt., 19 sie
Ryanair Logo
11:15 - 12:35STN-DUB
1h 20mdirect
Ryanair Logo
20:50 - 22:10DUB-STN
1h 20mdirect
€32Ryanair
Find Deal
wt., 29 lip - wt., 5 sie
Ryanair Logo
22:35 - 23:55STN-DUB
1h 20mdirect
Ryanair Logo
17:00 - 18:20DUB-STN
1h 20mdirect
€33Ryanair
Find Deal
czw., 9 paź - pt., 17 paź
 Logo
17:50 - 19:10STN-DUB
1h 20mdirect
 Logo
21:05 - 22:25DUB-STN
1h 20mdirect
śr., 8 paź - śr., 15 paź
 Logo
13:05 - 14:30LGW-DUB
1h 25mdirect
 Logo
08:55 - 16:20DUB-LGW
7h 25m1 stop
ndz., 4 sty - czw., 15 sty
British Airways Logo
13:25 - 15:00LHR-DUB
1h 35mdirect
British Airways Logo
08:50 - 10:25DUB-LHR
1h 35mdirect
€85British Airways
Find Deal
wt., 9 wrz - czw., 11 wrz
British Airways Logo
18:10 - 19:35LHR-DUB
1h 25mdirect
British Airways Logo
11:00 - 12:30DUB-LHR
1h 30mdirect
€90British Airways
Find Deal
wt., 29 lip - śr., 30 lip
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
€111Aer Lingus
Find Deal
wt., 29 lip - wt., 5 sie
Aer Lingus Logo
19:10 - 20:35LHR-SNN
1h 25mdirect
Aer Lingus Logo
21:15 - 22:40SNN-LHR
1h 25mdirect
€117Aer Lingus
Find Deal
pt., 10 paź - ndz., 12 paź
KLM Logo
17:50 - 23:30LCY-ORK
5h 40m1 stop
KLM Logo
06:00 - 17:20ORK-LCY
11h 20m1 stop
€242KLM
Find Deal
pt., 5 wrz - ndz., 7 wrz
KLM Logo
20:10 - 22:25LCY-ORK
26h 15m1 stop
KLM Logo
06:00 - 07:15ORK-LCY
25h 15m1 stop
€297KLM
Find Deal
Useful Info

KAYAK's insights & trends for London to Ireland flights

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

What is the cheapest London to Ireland flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London to Ireland.

The cheapest ticket to Ireland from London found in the last 72 hours was to Dublin, at €82 return. The most popular route is from London Heathrow Airport (LHR) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €206.

What is the cheapest month to fly from London to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 London to Ireland is September, when tickets cost €55 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is €118 and €90 respectively.

What’s the cheapest day of the week to fly from London to Ireland?

The average price of all round-trip flights from London to Ireland clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from London to Ireland, look for departures on Thursdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Ireland, Friday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London 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 London 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.


Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight€17
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 0% lower on average.
Flight from London Stansted Airport to Dublin

Flights from London to Ireland: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from London 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 - booking Ireland flights

  • What direct flights are there from London to Ireland?

    There are several direct flights to Ireland from London, as this entire journey should take no more than 1h 30min to complete. Aer Lingus, Ryanair and British Airways all offer swift, direct flights, and Lufthansa and Swiss Air also service this flight but will include one stop.

  • How can I get assistance as a disabled passenger?

    All airlines will offer service for disabled travellers. You can get wheelchair use, embarkment and disembarkment assistance and bathroom assists if you have reduced mobility. If you are visually impaired, you can find braille safety cards and assistance for embarking and disembarking the plane. Other disability needs such as autism, anxiety and hearing impairment can also be assisted. It is often best to consult your airline before you fly to ensure proper service.

  • How can I work online on the plane?

    All airlines servicing this route have now rolled out Wifi for international flights. You will be able to get connected from the sky and work online as soon as the cabin crew gives you the go-ahead.

  • If I arrive at Dublin Airport, will I be able to get medical treatment?

    Dublin Airport has a full medical staff on hand for any emergency that may occur during your flight or at the airport. If you are ill on the plane, let the cabin crew call the airport to arrange assistance as you land. Should you need additional service to what the airport's medical centre can provide, the airport will arrange an ambulance.

  • How does KAYAK find such low prices on flights from London 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 London to Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London 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 London 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 London 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 London 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 London 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 time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally in the evening, when retur flights cost €168 on average. Morning departures are around 8% more expensive than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €335.

Top tips for finding cheap flights to Ireland

  • When flying from London to Ireland, you will be lucky enough to be able to use any of the London-serving airports for the trip. Heathrow (LHR) and London City Airport (LCY) are the two airports that are closer to London central and are good choices if you are based centrally. Gatwick (LGW), Luton (LTN) and Stansted (STN) are all slightly further afield, so take into account your ground-travel time when planning your itinerary.
  • If you would like to take some great British treats to your Irish friends, all London-serving airports offer great duty-free shopping options. Heathrow and Gatwick have convenient click-and-collect services, which can reduce time. Simply browse online and collect at the designated point of the airport for a seamless transaction.
  • Although your flight to Ireland from London will be rather short, if you have a baby, you may want to ensure they sleep comfortably through it. If you fly with British Airways, you can get a bassinet for your little one, to get them down before the plane takes off. All London airports will also let you board first if your baby is under two years of age.
  • If you are planning on visiting Dublin, ensure your flight arrives at Dublin Airport (DUB), on the western coast of the country. You can also catch flights to the central region of Limerick and land at Shannon Airport (SNN) or the southern region of Cork and land at Cork Airport (ORK). Although Ireland is essentially small, direct city-to-city flights are always good if you don’t have the time for ground transportation.
  • If you are planning on taking your service animal on the plane, be aware that, although this is welcomed, you will have to follow the procedure of alerting the airline at least 48 hours before the flight, making sure the animal’s paperwork is up to date and they have all their latest inoculations.

Reviews of the top airlines flying from London to Ireland

 
Need help choosing which airline to fly with from London 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 1152 reviews
7.2Boarding
7.0Comfort
6.4Food
8.0Crew
6.8Entertainment
Airline reviews

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

10.0 ExcellentAnonymous, Jul 2025ORD - DUB
Read more Aer Lingus reviews

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

The Nice airport was a horrible boarding experience. I have never experienced the kind of compressed mob (in the B12-B17 gate area) of people all unclear what was happening and no airport staff to assist. There was no signage and 1000’s of people waiting for any info for 2 hours.

The food was mediocre, the coffee was terrible. The entertaining selection was plentiful. They lost my checked luggage which put a damper on my 10-day vacation.

Weeeeeeell, you folks know economy class on Airbuses well--you're packed in like sardines. We may actually spring for more expensive seats next time, with a little room to stretch out. NO room to stretch out in Airbus economy class! :-) Apart from this, the food was decent (considering that it's mass-produced, and has severe spatial restrictions of its own), the staff were friendly enough, and there was a wide selection of movies, etc. to watch. Overall, I'd tend to use the word "adequate" rather than "exceptional" for my experience. But really, how could it be otherwise?

Excellent service, full flight but all went well ; slightly delayed start at Faro but arrived in Cork on time.

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

Experience with British Airways was hopeless and the response from ground staff after flight cancellation was hopeless

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

this was a good experience from on time boarding and take off to early arrival. Comfortable seats became empty seat next to me.

Cancelled flight, limited information and chaotic rebooking and accommodation provision. Apathetic crew who were more interested in taking about their layover plans than remembering passengers orders and actually bringing them (after 3 reminders). To top it off, priority baggage checked in at The Wing (LHR’s first class checkin) was delivered last to the baggage belt.

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

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

Everything you need to know for your flight from London 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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