Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to Ireland 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 17/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — DUB
28 Jan — 4 Feb1
1 adult

Cheap flight deals from London to Ireland

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Ireland (IE0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 23 January 2025.

Round-trip from

£32

One-way from

£22

Good round-trip deal

£34 or less

Good one-way deal

£17 or less
Ryanair
  • Ryanair
  • 21/3-23/3
  • Nonstop
  • 2h 50m total
  • London to Ireland
Search Deals
Ryanair
  • Ryanair
  • 17/2
  • Nonstop
  • 1h 20m total
  • London to Ireland
Search Deals
Price to beat on a round-trip flight from London (LON) to Ireland.
Search Deals
Price to beat on a one-way flight from London (LON) to Ireland.
Search Deals

Find flight deals from London to Ireland

Cheapest flights from London to Ireland
Explore the most affordable flight options available from London to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 January 2025.

Fri 21/320:10LGW - DUB
Nonstop1h 20mRyanair
Sun 23/306:30DUB - LGW
Nonstop1h 30mRyanair
Deal found 23/1£32
Wed 12/317:00STN - ORK
Nonstop1h 25mRyanair
Mon 17/319:05ORK - STN
Nonstop1h 25mRyanair
Deal found 22/1£32
Sat 8/320:35LTN - DUB
Nonstop1h 15mRyanair
Mon 10/307:35DUB - LTN
Nonstop1h 15mRyanair
Deal found 23/1£32
Mon 3/313:45STN - DUB
Nonstop1h 20mRyanair
Sun 9/306:30DUB - STN
Nonstop1h 20mRyanair
Deal found 23/1£32
Thu 6/309:40LGW - ORK
Nonstop1h 25mRyanair
Sat 8/315:55ORK - LGW
Nonstop1h 25mRyanair
Deal found 23/1£37
Fri 7/206:35STN - DUB
Nonstop1h 20mMultiple Airlines
Sat 8/212:30DUB - STN
Nonstop1h 20mMultiple Airlines
Deal found 22/1£59
Thu 12/606:20LHR - DUB
Nonstop1h 25mBritish Airways
Mon 16/620:55DUB - LHR
Nonstop1h 20mBritish Airways
Deal found 21/1£66
Fri 14/317:25STN - ORK
Nonstop1h 25mMultiple Airlines
Wed 19/311:10ORK - STN
1 stop12h 45mMultiple Airlines
Deal found 22/1£75
Mon 10/211:25LGW - ORK
Nonstop1h 25mMultiple Airlines
Tue 11/215:25ORK - LGW
1 stop17h 30mMultiple Airlines
Deal found 22/1£82
Tue 11/219:30LGW - DUB
1 stop15h 00mMultiple Airlines
Tue 25/215:50DUB - LGW
Nonstop1h 30mMultiple Airlines
Deal found 23/1£83
Sat 1/314:15LHR - SNN
Nonstop1h 30mAer Lingus
Sun 9/320:05SNN - LHR
Nonstop1h 20mAer Lingus
Deal found 22/1£84
Fri 28/205:50LTN - DUB
Nonstop1h 15mMultiple Airlines
Sun 2/321:10DUB - LTN
1 stop11h 05mMultiple Airlines
Deal found 22/1£88

Find flights from London to Ireland within your budget

Customise your flight search to find flights from London 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 23 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonDublin

LGW - DUB

LGWDUB

London Gatwick

Fri 14/3

21:35-22:55

Nonstop1h 20m

Dublin

Sun 16/3

06:30-08:00

Nonstop1h 30m

£46

LondonDublin

LTN - DUB

LTNDUB

London Luton

Fri 18/4

21:05-22:20

Nonstop1h 15m

Dublin

Mon 21/4

07:25-08:35

Nonstop1h 10m

£46

LondonDublin

STN - DUB

STNDUB

London Stansted

Sat 12/4

14:45-16:05

Nonstop1h 20m

Dublin

Sat 19/4

06:30-07:50

Nonstop1h 20m

£46

LondonCork

LGW - ORK

LGWORK

London Gatwick

Wed 5/2

11:25-12:50

Nonstop1h 25m

Cork

Fri 14/2

16:10-17:35

Nonstop1h 25m

£47

LondonCork

STN - ORK

STNORK

London Stansted

Sat 15/3

19:55-21:20

Nonstop1h 25m

Cork

Tue 18/3

21:50-23:15

Nonstop1h 25m

£49

LondonDublin

STN - DUB

STNDUB

London Stansted

Mon 17/3

06:30-07:50

Nonstop1h 20m

Dublin

Tue 18/3

06:30-07:50

Nonstop1h 20m

£65

LondonDublin

LHR - DUB

LHRDUB

London Heathrow

Thu 12/6

06:20-07:45

Nonstop1h 25m

Dublin

Mon 16/6

20:55-22:15

Nonstop1h 20m

£66

LondonCork

STN - ORK

STNORK

London Stansted

Fri 14/3

17:25-18:50

Nonstop1h 25m

Cork

Wed 19/3

11:10-23:55

1 stop12h 45m

£75

LondonDublin

LGW - DUB

LGWDUB

London Gatwick

Sat 8/2

16:45-18:05

Nonstop1h 20m

Dublin

Sat 8/2

20:10-08:30

1 stop12h 20m

£77

LondonCork

LGW - ORK

LGWORK

London Gatwick

Mon 10/2

11:25-12:50

Nonstop1h 25m

Cork

Tue 11/2

15:25-08:55

1 stop17h 30m

£82

Flights are sorted by cheapest return flights first.

Deals found on 22/1

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from London to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from London 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.

Travel insights for flights from London to Ireland

Get recent, data-driven insights about flights from London to Ireland including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from London to Ireland (average of £71). Flying from London to Ireland in June is currently the most expensive (average of £104). 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 LON to IE?

Find hourly flight availability from London 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 23 January 2025.

A simple way to save on the total cost of your ticket is to fly from London to Ireland in the evening. If you’re flexible enough to do this you can expect to save up to 38% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly return from London to Ireland. Price data was last updated on 30 June 2024.

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

Weekly flight availability from London to Ireland

Explore weekly flight availability from London 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 23 January 2025.

The most flights from LON to IE0 are scheduled on a Monday (92 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (34 on average).

Rainfall in Ireland by month

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

In terms of precipitation, rainfall in Ireland ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Ireland when rainfall is around 49.0 mm.

Temperature in Ireland by month

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

If weather is an important factor for your trip to Ireland, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 23 January 2025.
Get a feel of what it's like to fly with Ryanair, Iberia and SWISS from London to Ireland by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,338 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,338 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Norwegian
7.7
Good
249 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.5
Good
787 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,598 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air France
7.4
Good
1,488 reviews
KLM
7.8
Good
1,338 reviews
Check prices

Overall

7.8

Comfort

7.7

Crew

8.4

Entertainment

7.2

Boarding

7.8

Food

7.3

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from London to Ireland. 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 London to Ireland one-way?

    For one-way options, check prices for Ryanair. According to our data, you can fly for as low as £22. Users have also found prices from £43 and £43 on Vueling and British Airways, respectively.

  • What are the most popular routes from London to Ireland?

    The most popular flight routes from London to Ireland are London City - Dublin, London Heathrow - Dublin and London Gatwick - Dublin.

  • What are the most reliable airlines from London to Ireland?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Ireland on time: Qatar Airways (62%), Aer Lingus (62%), British Airways (62%).

  • What are the cheapest flights from London to Ireland?

    Looking at all options, your cheapest flight can be booked for £77. While the most popular route (London City - Dublin) can be booked for £88 on average our data indicates £610 when flying from London to Ireland.

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

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

  • How can I find direct flights from London to Ireland?

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

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

    Yes. Cheapflights offers flight deals from London 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 London to Ireland?

    Currently, January is the cheapest month in which you can book a flight from London to Ireland (average of £71). Flying from London to Ireland in June is currently the most expensive (average of £104). 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 London to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Istanbul flights
Heathrow to Leonardo da Vinci/Fiumicino flights
London City to Istanbul flights
Heathrow to Madrid flights
Heathrow to Barcelona-El Prat flights
Heathrow to Málaga flights
Gatwick to Lisbon flights
Heathrow to Amsterdam flights
Gatwick to Charles de Gaulle flights
Gatwick to Barcelona-El Prat flights
Heathrow to Malpensa flights
Luton to Charles de Gaulle flights
Heathrow to Charles de Gaulle flights
Gatwick to Amsterdam flights
Gatwick to Orly flights
Heathrow to Alicante flights
Gatwick to Alicante flights
Gatwick to Madrid flights
London City to Charles de Gaulle flights
Luton to Barcelona-El Prat flights
London City to Leonardo da Vinci/Fiumicino flights
Heathrow to Lisbon flights
London City to Amsterdam flights
Luton to Amsterdam flights
Stansted to Barcelona-El Prat flights
Stansted to Alicante flights
Heathrow to Orly flights
Gatwick to Leonardo da Vinci/Fiumicino flights
Heathrow to Dublin flights
Heathrow to Faro flights
Heathrow to Edinburgh flights
Stansted to Edinburgh flights
Stansted to Amsterdam flights
Stansted to Istanbul flights
Gatwick to Edinburgh flights
London City to Geneva flights
Luton to Lisbon flights
Luton to Edinburgh flights
London City to Dublin flights
Luton to Alicante flights
Gatwick to Malpensa flights
London City to Otopeni Intl flights
Heathrow to Luqa flights
London City to Malpensa flights
Luton to Otopeni Intl flights
Manchester to Alicante flights
Gatwick to Dublin flights
London City to Lisbon flights
Gatwick to Istanbul flights
Stansted to Otopeni Intl flights

Top 4 airlines flying from London to Ireland

Discover the top 4 airlines that operate flights from London 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 23 January 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£27Average£65FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Aer LingusCheapest£54Average£148FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£57Average£157FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£152Average£209FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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 London to Ireland?

When you search for this flight from London to Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Ireland for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Ireland from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for London 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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.