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Cheap flights from the United Kingdom to Ireland from £15

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Ireland

Keep the following information in mind while searching for United Kingdom to Ireland flight deals. Data was last updated 20 November 2025.

Round-trip from

£35

One-way from

£15

Popular in

December

Cheapest in

January

Average price

£69

Good round-trip deal

£31 or less

Good one-way deal

£15 or less
Ryanair
  • Ryanair
  • 6/12-7/12
  • Nonstop
  • 2h 00m total
  • United Kingdom to Ireland
Search Deals
Ryanair
  • Ryanair
  • 18/12
  • Nonstop
  • 1h 00m total
  • United Kingdom to Ireland
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£5 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from United Kingdom to Ireland.
Search Deals
Price to beat on a one-way flight from United Kingdom to Ireland.
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Find flight deals from United Kingdom to Ireland

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Ireland
Explore the most affordable flight options available from United Kingdom to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2025.

Mon 8/1206:55MAN - DUB
Nonstop1h 00mRyanair
Wed 10/1206:45DUB - MAN
Nonstop1h 00mRyanair
Deal found 17/11£34
Mon 15/1221:30MAN - DUB
Nonstop1h 00mMultiple Airlines
Mon 22/1208:35DUB - MAN
Nonstop1h 00mMultiple Airlines
Deal found 17/11£35
Sat 6/1222:15MAN - DUB
Nonstop1h 00mRyanair
Tue 9/1206:10DUB - MAN
Nonstop1h 00mRyanair
Deal found 17/11£36
Fri 12/1222:25MAN - DUB
Nonstop1h 00mRyanair
Mon 15/1205:45DUB - MAN
Nonstop1h 00mRyanair
Deal found 19/11£37
Tue 2/1209:00BRS - DUB
Nonstop1h 05mRyanair
Wed 3/1206:30DUB - BRS
Nonstop1h 05mRyanair
Deal found 19/11£37
Fri 12/1219:15LBA - DUB
Nonstop1h 00mRyanair
Sun 14/1206:35DUB - LBA
Nonstop1h 00mRyanair
Deal found 18/11£37
Fri 12/1222:25MAN - DUB
Nonstop1h 00mRyanair
Sun 14/1207:00DUB - MAN
Nonstop1h 00mRyanair
Deal found 17/11£37
Sat 6/1220:05BRS - DUB
Nonstop1h 05mRyanair
Sun 7/1206:55DUB - BRS
Nonstop1h 05mRyanair
Deal found 19/11£37
Sat 20/1220:15LBA - DUB
Nonstop1h 00mRyanair
Mon 22/1206:30DUB - LBA
Nonstop1h 00mRyanair
Deal found 18/11£38
Fri 12/1222:25MAN - DUB
Nonstop1h 00mRyanair
Sat 13/1220:50DUB - MAN
Nonstop1h 00mRyanair
Deal found 19/11£38
Thu 4/1220:00BRS - DUB
Nonstop1h 05mRyanair
Mon 8/1206:30DUB - BRS
Nonstop1h 05mRyanair
Deal found 19/11£38
Sat 13/1216:40LTN - DUB
Nonstop1h 15mRyanair
Sun 21/1206:20DUB - LTN
Nonstop1h 15mRyanair
Deal found 18/11£39

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Ireland 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, Cheapflights users made 858,174 searches. Data last updated 20 November 2025.
Use the filters below to find and compare flights from the United Kingdom to Ireland that are best for you.

Fly from

United Kingdom

Fly to

Ireland

Route

Depart

Return

Price

BristolDublin

BRS - DUB

BRSDUB

Bristol

Thu 18/12

21:25-22:30

Nonstop1h 05m

Dublin

Sun 21/12

06:55-08:00

Nonstop1h 05m

£34

LeedsDublin

LBA - DUB

LBADUB

Leeds/Bradford

Sat 14/2

20:15-21:15

Nonstop1h 00m

Dublin

Sun 15/2

06:35-07:35

Nonstop1h 00m

£37

ManchesterDublin

MAN - DUB

MANDUB

Manchester

Fri 19/12

22:25-23:25

Nonstop1h 00m

Dublin

Mon 22/12

05:45-06:45

Nonstop1h 00m

£37

LeedsDublin

LBA - DUB

LBADUB

Leeds/Bradford

Fri 12/12

19:15-20:15

Nonstop1h 00m

Dublin

Sun 14/12

06:35-07:35

Nonstop1h 00m

£37

LeedsDublin

LBA - DUB

LBADUB

Leeds/Bradford

Sat 20/12

20:15-21:15

Nonstop1h 00m

Dublin

Mon 22/12

06:30-07:30

Nonstop1h 00m

£38

LeedsDublin

LBA - DUB

LBADUB

Leeds/Bradford

Fri 23/1

19:15-20:15

Nonstop1h 00m

Dublin

Sun 25/1

06:35-07:35

Nonstop1h 00m

£38

ManchesterDublin

MAN - DUB

MANDUB

Manchester

Fri 12/12

22:25-23:25

Nonstop1h 00m

Dublin

Sat 13/12

20:50-21:50

Nonstop1h 00m

£38

BristolDublin

BRS - DUB

BRSDUB

Bristol

Sat 3/1

07:50-08:55

Nonstop1h 05m

Dublin

Sat 10/1

18:35-19:40

Nonstop1h 05m

£38

LondonDublin

LGW - DUB

LGWDUB

London Gatwick

Tue 27/1

21:40-23:05

Nonstop1h 25m

Dublin

Thu 29/1

09:45-11:10

Nonstop1h 25m

£39

LondonDublin

LTN - DUB

LTNDUB

London Luton

Fri 9/1

20:55-22:10

Nonstop1h 15m

Dublin

Sun 11/1

06:20-07:35

Nonstop1h 15m

£39

Flights are sorted by cheapest return flights first.

Deals found on 18/11

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from United Kingdom with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Ireland

What is the cheapest month to book a flight from United Kingdom to Ireland?

Currently, April is the cheapest month in which you can book a flight from United Kingdom to Ireland (average of £15). Flying from United Kingdom to Ireland in September is currently the most expensive (average of £30). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to IE?

Find hourly flight availability from United Kingdom to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2025.

It’s optimal to fly from United Kingdom to Ireland in the afternoon. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly return from United Kingdom to Ireland. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their United Kingdom to Ireland flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from United Kingdom to Ireland

Explore weekly flight availability from United Kingdom to Ireland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 20 November 2025.

The most flights from GB0 to IE0 are scheduled on a Monday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (28 on average).

How often are flights $[0, preposition:'from ']$[0, article:'from ']$[0, place:'from'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] delayed?

About 19% of weekly flights between $[0, place:'genitive'] and $[1, place:'genitive'] have experienced delays in the past year, with the average delay time being 100 minutes.

What is the most punctual flight time for $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

Which airline has the best punctuality record on $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

Over the past year, Aruba Airlines have had the lowest number of delays on this route, with no flights being classified as delayed.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ireland. Reviews last updated 20 November 2025.
Check out reviews from past customers who have flown with KLM, Aer Lingus, andRyanair from the United Kingdom to Ireland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,412 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,377 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Ryanair
6.8
Okay
5,196 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,534 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Ryanair
6.3
Okay
KLM
7.7
Good
1,412 reviews
Check prices

Crew

8.4

Food

7.3

Overall

7.7

Comfort

7.7

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from United Kingdom to Ireland?

    A quick flight from United Kingdom to Ireland can take about 1h. Ryanair provides one of the quickest options available for as low as £40. United Kingdom and Ireland are separated by a distance of 164 mi. Generally, flights for this route are direct.

  • Can I find deals for flights from United Kingdom to Ireland that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Ireland.

  • Can I find deals for business class flights from United Kingdom to Ireland?

    Yes. Cheapflights offers flight deals from United Kingdom to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Ireland?

    Currently, April is the cheapest month in which you can book a flight from United Kingdom to Ireland (average of £15). Flying from United Kingdom to Ireland in September is currently the most expensive (average of £30). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for United Kingdom to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Frankfurt to London City flights
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Lyon to London City flights
Nantes to London City flights
Duesseldorf Intl to Gatwick flights
Nantes to Stansted flights
Marseille to Stansted flights
Beauvais-Tille to Gatwick flights

Top 6 airlines flying from United Kingdom to Ireland

Discover the top 6 airlines that operate flights from United Kingdom to Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£16Average£49FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£27Average£72FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£44Average£213FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£69Average£244FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£71Average£256FlexibilityNo cancel feeOn-time75%
Search KLM flights
LoganairCheapest£146Average£181FlexibilityNo cancel feeOn-time79%
Search Loganair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Ireland?

Cheapflights helps you search for flights from United Kingdom to Ireland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Ireland?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to Ireland.

Can Cheapflights find flights from United Kingdom to Ireland with no change fees?

Yes, we can. To see specific flights from United Kingdom to Ireland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from United Kingdom to Ireland become cheaper?

Yes! Start tracking prices for United Kingdom to Ireland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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