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Cheap flights from Ireland to the United Kingdom from £21

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 27/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LHR
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Ireland to United Kingdom

Keep the following information in mind while searching for Ireland to United Kingdom flight deals. Data was last updated 13 June 2025.

Round-trip from

£21

One-way from

£21

Popular in

August

Cheapest in

January

Average price

£90

Good round-trip deal

£12 or less

Good one-way deal

£13 or less
Ryanair
  • Ryanair
  • 2/7-23/7
  • Nonstop
  • 2h 00m total
  • Ireland to United Kingdom
Ryanair
  • Ryanair
  • 27/6
  • Nonstop
  • 0h 55m total
  • Ireland to United Kingdom
Highest demand for flights based on searches. 3% potential increase in price (£2 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from Ireland to United Kingdom.
Price to beat on a one-way flight from Ireland to United Kingdom.

Find flight deals from Ireland to United Kingdom

Cheapest flights from Ireland to United Kingdom
Explore the most affordable flight options available from Ireland to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Sun 27/721:50DUB - LPL
Nonstop0h 55mRyanair
Sat 23/822:30LPL - DUB
Nonstop0h 55mRyanair
Deal found 12/6£28
Sun 27/707:30DUB - LBA
Nonstop1h 00mRyanair
Sun 3/808:55LBA - DUB
Nonstop1h 00mRyanair
Deal found 12/6£28
Fri 18/720:55DUB - MAN
Nonstop1h 00mRyanair
Sat 19/718:00MAN - DUB
Nonstop0h 55mRyanair
Deal found 11/6£29
Tue 8/705:45DUB - EDI
Nonstop1h 05mRyanair
Sun 27/707:50EDI - DUB
Nonstop1h 05mRyanair
Deal found 11/6£29
Fri 25/721:10DUB - GLA
Nonstop1h 10mRyanair
Sun 27/721:55GLA - DUB
Nonstop1h 00mRyanair
Deal found 11/6£32
Sun 20/707:30DUB - GLA
Nonstop1h 20mAer Lingus
Tue 29/720:10GLA - DUB
Nonstop1h 20mAer Lingus
Deal found 12/6£48
Sun 15/607:10DUB - LBA
Nonstop1h 05mAer Lingus
Sun 15/619:40LBA - DUB
Nonstop1h 15mAer Lingus
Deal found 12/6£51
Tue 1/709:20DUB - LPL
Nonstop1h 10mAer Lingus
Sun 27/721:05LPL - DUB
Nonstop1h 05mAer Lingus
Deal found 12/6£53
Thu 19/606:30DUB - MAN
Nonstop1h 05mAer Lingus
Tue 24/608:10MAN - DUB
Nonstop1h 00mAer Lingus
Deal found 12/6£54
Thu 12/607:10DUB - EDI
Nonstop1h 20mAer Lingus
Mon 16/620:30EDI - DUB
Nonstop1h 15mAer Lingus
Deal found 10/6£57
Wed 16/706:25DUB - SOU
Nonstop1h 40mAer Lingus
Thu 24/720:00SOU - DUB
Nonstop1h 35mAer Lingus
Deal found 12/6£62
Thu 26/607:10DUB - EDI
Nonstop1h 20mMultiple Airlines
Thu 26/623:35EDI - DUB
Nonstop1h 05mMultiple Airlines
Deal found 12/6£67

Cheapflights Fare Finder

Customise your flight search to find flights from Ireland to United Kingdom 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 13 June 2025.
Use the filters below to find and compare flights from Ireland to the United Kingdom that are best for you.

Fly from

Ireland

Fly to

United Kingdom

Route

Depart

Return

Price

DublinLiverpool

DUB - LPL

DUBLPL

Dublin

Sun 27/7

21:50-22:45

Nonstop0h 55m

Liverpool J. Lennon

Sat 23/8

22:30-23:25

Nonstop0h 55m

£28

DublinLeeds

DUB - LBA

DUBLBA

Dublin

Sun 27/7

07:30-08:30

Nonstop1h 00m

Leeds/Bradford

Sun 3/8

08:55-09:55

Nonstop1h 00m

£28

DublinManchester

DUB - MAN

DUBMAN

Dublin

Fri 18/7

20:55-21:55

Nonstop1h 00m

Manchester

Sat 19/7

18:00-18:55

Nonstop0h 55m

£29

DublinEdinburgh

DUB - EDI

DUBEDI

Dublin

Tue 8/7

05:45-06:50

Nonstop1h 05m

Edinburgh Turnhouse

Sun 27/7

07:50-08:55

Nonstop1h 05m

£29

DublinGlasgow

DUB - GLA

DUBGLA

Dublin

Fri 25/7

21:10-22:20

Nonstop1h 10m

Glasgow Intl

Sun 27/7

21:55-22:55

Nonstop1h 00m

£32

DublinGlasgow

DUB - GLA

DUBGLA

Dublin

Sun 20/7

07:30-08:50

Nonstop1h 20m

Glasgow Intl

Tue 29/7

20:10-21:30

Nonstop1h 20m

£48

DublinLiverpool

DUB - LPL

DUBLPL

Dublin

Tue 1/7

09:20-10:30

Nonstop1h 10m

Liverpool J. Lennon

Sun 27/7

21:05-22:10

Nonstop1h 05m

£53

DublinManchester

DUB - MAN

DUBMAN

Dublin

Thu 3/7

12:45-13:50

Nonstop1h 05m

Manchester

Mon 7/7

16:05-17:20

Nonstop1h 15m

£55

DublinLeeds

DUB - LBA

DUBLBA

Dublin

Tue 19/8

17:50-19:10

Nonstop1h 20m

Leeds/Bradford

Sat 30/8

08:45-09:50

Nonstop1h 05m

£57

DublinLeeds

DUB - LBA

DUBLBA

Dublin

Wed 29/10

18:10-19:30

Nonstop1h 20m

Leeds/Bradford

Wed 5/11

07:45-08:45

Nonstop1h 00m

£57

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Ireland 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 Ireland to the United Kingdom

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

Currently, January is the cheapest month in which you can book a flight from Ireland to United Kingdom (average of £112). Flying from Ireland to United Kingdom in August is currently the most expensive (average of £164). 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 IE to GB?

Find hourly flight availability from Ireland to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

When flying from Ireland to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Ireland to United Kingdom

Explore weekly flight availability from Ireland to United Kingdom. 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 13 June 2025.

The most flights from IE0 to GB0 are scheduled on a Thursday (82 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (42 on average).

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit United Kingdom when rainfall is around 40.0 mm.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated 13 June 2025.
Read reviews from past customers who have flown Aegean Airlines, KLM and Norwegian from Ireland to United Kingdom. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.4

Boarding

7.8

Crew

8.6

Entertainment

7.0

Comfort

7.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Food

7.4

Boarding

7.8

Crew

8.6

Entertainment

7.0

Comfort

7.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Food

7.4

Boarding

7.8

Crew

8.6

Entertainment

7.0

Comfort

7.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Food

7.4

Boarding

7.8

Crew

8.6

Entertainment

7.0

Comfort

7.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Food

7.4

Boarding

7.8

Crew

8.6

Entertainment

7.0

Comfort

7.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Food

7.4

Boarding

7.8

Crew

8.6

Entertainment

7.0

Comfort

7.9

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

Related info for your journey

Find useful and relevant information for your journey from Ireland to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Ireland to United Kingdom one-way?

    One-way options have recently been found by users for as low as £21 on Ryanair. Other airlines that offer cheap prices include Aer Lingus from £22 and British Airways from £27 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ireland to United Kingdom 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 Ireland to United Kingdom?

    Currently, January is the cheapest month in which you can book a flight from Ireland to United Kingdom (average of £112). Flying from Ireland to United Kingdom in August is currently the most expensive (average of £164). 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 Ireland to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Ireland to United Kingdom

Discover the top 4 airlines that operate flights from Ireland to United Kingdom. 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£25Average£63FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£26Average£40FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£28Average£104FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£57Average£124FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Ireland to United Kingdom?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ireland to United Kingdom. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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 Ireland to United Kingdom.

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

Yes, we can. To see specific flights from Ireland to United Kingdom 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 Ireland to United Kingdom become cheaper?

Yes, Cheapflights offers price alerts on Ireland to United Kingdom flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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