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Cheap flights from Ireland to the United Kingdom 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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LHR
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

£28

One-way from

£15

Popular in

December

Cheapest in

January

Average price

£70

Good round-trip deal

£23 or less

Good one-way deal

£15 or less
Ryanair
  • Ryanair
  • 1/10-1/10
  • Nonstop
  • 2h 10m total
  • Ireland to United Kingdom
Search Deals
Ryanair
  • Ryanair
  • 4/10
  • Nonstop
  • 1h 05m total
  • Ireland to United Kingdom
Search Deals
High demand for flights, 15% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Ireland to United Kingdom.
Search Deals
Price to beat on a one-way flight from Ireland to United Kingdom.
Search Deals

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 17 September 2025.

Wed 1/1007:25DUB - BHX
Nonstop1h 05mRyanair
Wed 1/1020:50BHX - DUB
Nonstop1h 05mRyanair
Deal found 15/9£28
Wed 1/1007:25DUB - BHX
Nonstop1h 05mRyanair
Wed 15/1020:50BHX - DUB
Nonstop1h 05mRyanair
Deal found 16/9£29
Wed 22/1019:20DUB - BHX
Nonstop1h 05mRyanair
Wed 29/1006:55BHX - DUB
Nonstop1h 05mRyanair
Deal found 16/9£30
Sat 4/1006:45DUB - BHX
Nonstop1h 05mRyanair
Sat 4/1019:20BHX - DUB
Nonstop1h 05mRyanair
Deal found 15/9£31
Fri 24/1007:25DUB - BHX
Nonstop1h 05mRyanair
Sun 26/1021:40BHX - DUB
Nonstop1h 05mRyanair
Deal found 15/9£32
Wed 15/1023:10DUB - LPL
Nonstop0h 55mRyanair
Wed 22/1013:45LPL - DUB
Nonstop0h 55mRyanair
Deal found 15/9£32
Sun 28/907:30DUB - LBA
Nonstop1h 00mRyanair
Tue 30/907:55LBA - DUB
Nonstop1h 00mRyanair
Deal found 15/9£32
Thu 25/910:35DUB - MAN
Nonstop1h 00mRyanair
Thu 25/922:45MAN - DUB
Nonstop0h 55mRyanair
Deal found 15/9£32
Mon 22/906:55DUB - GLA
Nonstop1h 10mRyanair
Mon 29/921:50GLA - DUB
Nonstop1h 00mRyanair
Deal found 15/9£32
Sun 12/1007:10DUB - BHX
Nonstop1h 05mRyanair
Sun 19/1013:35BHX - DUB
Nonstop1h 05mRyanair
Deal found 14/9£32
Thu 18/906:20DUB - LPL
Nonstop0h 55mRyanair
Mon 22/923:15LPL - DUB
Nonstop0h 55mRyanair
Deal found 15/9£32
Wed 17/906:45DUB - LBA
Nonstop1h 00mRyanair
Tue 23/911:20LBA - DUB
Nonstop1h 00mRyanair
Deal found 15/9£32

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 17 September 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

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Wed 1/10

07:25-08:30

Nonstop1h 05m

Birmingham

Thu 2/10

05:55-07:00

Nonstop1h 05m

£28

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Wed 1/10

07:25-08:30

Nonstop1h 05m

Birmingham

Wed 15/10

20:50-21:55

Nonstop1h 05m

£29

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Wed 22/10

19:20-20:25

Nonstop1h 05m

Birmingham

Wed 29/10

08:40-09:45

Nonstop1h 05m

£30

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Mon 29/9

07:30-08:35

Nonstop1h 05m

Birmingham

Thu 2/10

05:55-07:00

Nonstop1h 05m

£30

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Sat 4/10

06:45-07:50

Nonstop1h 05m

Birmingham

Sat 4/10

19:20-20:25

Nonstop1h 05m

£31

DublinBirmingham

DUB - BHX

DUBBHX

Dublin

Fri 24/10

07:25-08:30

Nonstop1h 05m

Birmingham

Sun 26/10

21:40-22:45

Nonstop1h 05m

£32

DublinLiverpool

DUB - LPL

DUBLPL

Dublin

Sat 25/10

21:10-22:05

Nonstop0h 55m

Liverpool J. Lennon

Sun 26/10

23:00-23:55

Nonstop0h 55m

£32

DublinLiverpool

DUB - LPL

DUBLPL

Dublin

Wed 15/10

23:10-00:05

Nonstop0h 55m

Liverpool J. Lennon

Wed 22/10

13:45-14:40

Nonstop0h 55m

£32

DublinLiverpool

DUB - LPL

DUBLPL

Dublin

Sat 25/10

16:00-16:55

Nonstop0h 55m

Liverpool J. Lennon

Sat 25/10

22:30-23:25

Nonstop0h 55m

£32

DublinLeeds

DUB - LBA

DUBLBA

Dublin

Sun 28/9

07:30-08:30

Nonstop1h 00m

Leeds/Bradford

Tue 30/9

07:55-08:55

Nonstop1h 00m

£32

Flights are sorted by cheapest return flights first.

Deals found on 16/9

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 17 September 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 17 September 2025.

The most flights from IE0 to GB0 are scheduled on a Wednesday (81 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (45 on average).

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 17 September 2025.
See what other customers who have flown with Aer Lingus, Ryanair, andBritish Airways from Ireland to the United Kingdom have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,274 reviews
Check prices

Comfort

7.1

Food

6.5

Crew

8.0

Entertainment

6.9

Boarding

7.3

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Aer Lingus
7.2
Good
1,274 reviews
Aer Lingus
7.2
Good
1,274 reviews
Check prices

Comfort

7.1

Food

6.5

Crew

8.0

Entertainment

6.9

Boarding

7.3

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Ryanair
6.8
Okay
5,157 reviews
Aer Lingus
7.2
Good
1,274 reviews
Check prices

Comfort

7.1

Food

6.5

Crew

8.0

Entertainment

6.9

Boarding

7.3

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
British Airways
6.7
Okay
7,363 reviews
Aer Lingus
7.2
Good
1,274 reviews
Check prices

Comfort

7.1

Food

6.5

Crew

8.0

Entertainment

6.9

Boarding

7.3

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.
Ryanair
6.2
Okay
Aer Lingus
7.2
Good
1,274 reviews
Check prices

Comfort

7.1

Food

6.5

Crew

8.0

Entertainment

6.9

Boarding

7.3

Overall

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jul 2025

DUB - ORD

The inability to check in with the final leg of our flight via the Aers Lingus app led to a stressful trip as the final leg was overbooked and we were not able to confirm a seat until we had arrived to Chicago. Lack of earphones for the "entertainment" system were not voluntarily provided or even referenced as available (even for a charge) while boarding the plane - this seems like an oversight.

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.

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

    For as low as £28, Ryanair can have you in United Kingdom from Ireland in 1h 05m. Airlines will cover a distance of 199 mi. All flights are typically direct.

  • 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

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Alternative routes for Ireland to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£25Average£66FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£25Average£38FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£28Average£105FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£57Average£128FlexibilityNo 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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