Popular cities in Ireland
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British Airways
BA 0832
→ Outbound · 31 Jan
LHR
London Heathrow
DUB
Ireland
1:35 PM
31 Jan
1h 30m
Direct
3:05 PM
31 Jan
← Return · 10 Feb
DUB
Dublin
LHR
London Heathrow
8:40 PM
10 Feb
1h 20m
Direct
10:00 PM
10 Feb
from
£87
Return · per adult
British Airways
BA 0824
→ Outbound · 27 Sep
LHR
London Heathrow
DUB
Ireland
6:20 AM
27 Sep
1h 25m
Direct
7:45 AM
27 Sep
← Return · 7 Oct
DUB
Dublin
LHR
London Heathrow
8:35 AM
7 Oct
1h 35m
Direct
10:10 AM
7 Oct
from
£105
Return · per adult
British Airways
BA 0838
→ Outbound · 20 Dec
LHR
London Heathrow
DUB
Ireland
6:20 PM
20 Dec
1h 20m
Direct
7:40 PM
20 Dec
← Return · 30 Dec
DUB
Dublin
LHR
London Heathrow
8:40 PM
30 Dec
1h 20m
Direct
10:00 PM
30 Dec
from
£123
Return · per adult
Aer Lingus
EI 177
→ Outbound · 8 Nov
LHR
London Heathrow
DUB
Ireland
7:45 PM
8 Nov
1h 20m
Direct
9:05 PM
8 Nov
← Return · 18 Nov
DUB
Dublin
LHR
London Heathrow
8:40 PM
18 Nov
1h 20m
Direct
10:00 PM
18 Nov
from
£163
Return · per adult
British Airways
BA 5929
→ Outbound · 7 Oct
LHR
London Heathrow
ORK
Ireland
1:45 PM
7 Oct
1h 25m
Direct
3:10 PM
7 Oct
← Return · 17 Oct
ORK
Cork
LHR
London Heathrow
7:10 AM
17 Oct
1h 30m
Direct
8:40 AM
17 Oct
from
£205
Return · per adult
Aer Lingus
EI 725
→ Outbound · 24 Sep
LHR
London Heathrow
ORK
Ireland
10:25 PM
24 Sep
1h 25m
Direct
11:50 PM
24 Sep
← Return · 4 Oct
ORK
Cork
LHR
London Heathrow
7:10 AM
4 Oct
1h 30m
Direct
8:40 AM
4 Oct
from
£206
Return · per adult
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Popular airlines to Ireland
Top 2 airlines flying from London to Ireland
Cheapest and average return economy fares by carrier, from our sampled live searches. Fares change constantly — tap Search to see live prices for your dates.
| Airline | Cheapest | Average | Flights | Search |
|---|---|---|---|---|
| Aer Lingus | £199 | £236 | Direct available | |
| British Airways | £205 | £288 | Direct available |
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Insights & trends for London to Ireland flights
Data-powered insights to help you find the cheapest flights, the best time to fly and much more.
How much is a return flight from London to Ireland?
Return flights from London to Ireland typically cost between £212 and £217 in August, though fares move with demand, season and how early you book. The lowest fare our search found recently was £201 — a great price and well below the usual range, so a price near this is worth grabbing. Keeping your dates flexible and comparing nearby days is the easiest way to land at the cheaper end.
What is the cheapest day to fly to Ireland?
The cheapest day to depart to Ireland is usually Wednesday, when fares start from around £199 — midweek departures tend to be quieter and cheaper. Monday is typically the most expensive day to fly out (around £211), as weekend travel is popular with leisure and business travellers alike. Where your plans allow, moving your outbound to a cheaper weekday can noticeably lower the total fare.
What is the cheapest time of day to fly to Ireland?
Flights to Ireland are generally cheapest departing in the morning, with fares from around £199. Departures in midday tend to cost more (about £204), as those slots are more convenient and in higher demand. Picking an off-peak departure time is a simple way to trim the price without changing your dates.
Can I save money by flying with a stopover to Ireland?
For Ireland, prices are generally cheapest when you fly direct, with fares from around £199 versus about £422 for a 1-stop itinerary. A direct flight also saves you time and the hassle of a connection, so it's usually the better all-round choice on this route. Stopovers only tend to pay off here if a particular date or airline happens to be cheaper.
Average return fare to Ireland by month
The cheapest month to fly from London to Ireland is typically January, with return economy fares from £201. Fares are usually highest in June (around £223). Figures are indicative, from sampled live fares, and change with demand.
Cheapest sampled return economy fare, London to Ireland, per month (gaps estimated). Search live for exact prices.
When to book flights from London to Ireland
Are your dates flexible? These are the ideal times to fly to Ireland based on our flight data — find the cheapest days for a 7-day trip.
Cheap flights to Ireland from across the UK
You don't have to fly from London. The cheapest UK departure for Ireland is currently London from £206. Compare return economy fares and typical flight times below — figures are indicative from sampled fares.
Indicative cheapest return economy fares by UK origin. Pick your dates in the search form above.
Our travel experts
Sarah Thompson
Expert on British Airways
Sarah Thompson specialises in British Airways travel, helping customers choose the right routes, schedules, and flight options. With a focus on smooth and stress-free journeys, she makes planning international travel simple and convenient.
Read moreGood to know — flights from London to Ireland
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Popular flights to Ireland
About flights to Ireland
Overview
Ireland is one of the easiest and most rewarding short-haul trips from the UK — a quick hop across the Irish Sea to a country of green hills, lively cities, dramatic Atlantic coastline and famously warm hospitality. With dozens of daily departures from airports up and down the UK, cheap flights to Ireland are simple to find year-round, whether you are planning a Dublin city break, a golfing trip to the south-west or a road trip along the Wild Atlantic Way.
Best time to fly to Ireland
The mildest, brightest weather runs from May to September, with the longest days and warmest temperatures in July and August. Late spring (May and early June) and September are the sweet spot: still-decent weather, thinner crowds and lower fares. Expect rain in any month — Ireland is green for a reason — so pack layers and a waterproof. March brings St Patrick's Day celebrations, while winter is quiet, atmospheric and generally cheapest. Check the When to book chart above to see how prices move across the year.
Main gateway cities & airports
Dublin Airport (DUB) is the main hub, with fast onward links by coach and the Luas tram into the city. Cork Airport (ORK) serves the south coast; Shannon Airport (SNN) is the gateway to the Cliffs of Moher, Limerick and Galway; and Ireland West Airport Knock (NOC) is handy for Mayo, Sligo and the northern Wild Atlantic Way. Kerry Airport (KIR) has a small number of UK links for Killarney and the Ring of Kerry.
Airlines and routes
Aer Lingus and Ryanair carry the bulk of UK–Ireland traffic, joined by British Airways on Heathrow–Dublin and easyJet from several UK bases. Direct flights to Ireland run from London (Heathrow, Gatwick, Stansted, Luton and City), Manchester, Birmingham, Bristol, Edinburgh, Glasgow, Leeds Bradford, Newcastle and Liverpool, among others. Nearly every UK traveller flies direct; connecting itineraries are rarely needed on such a short route.
Popular places to visit in Ireland
- Dublin: Georgian streets, Trinity College and the Book of Kells, the Guinness Storehouse and a legendary pub scene.
- Cliffs of Moher: towering sea cliffs on the County Clare coast, among Ireland's most photographed sights.
- Ring of Kerry: a classic scenic drive past mountains, lakes and the wild Skellig coast.
- Galway: a compact, music-filled harbour city and springboard for Connemara and the Aran Islands.
- Killarney National Park: lakes, woodland and Muckross House on the edge of the MacGillycuddy's Reeks.
Top tips for finding cheap flights to Ireland
- Fly midweek — Tuesday and Wednesday departures are usually cheaper than Friday or Sunday.
- Travel with hand luggage only on Ryanair and Aer Lingus to keep low fares genuinely low.
- Compare nearby airports at both ends; flying into Shannon or Cork rather than Dublin can be cheaper and closer to your plans.
- Use the price charts on this page to spot the cheapest weeks and book when fares dip.
Travel essentials
UK passport holders need no visa for Ireland and, under the Common Travel Area, face no routine passport check — but airlines require valid photo ID, so a passport is the safest choice. The currency is the euro. Book short breaks a few weeks ahead and school-holiday travel earlier; see the When to book chart above for timing.
Baggage & hand-luggage allowance for flights to Ireland
Your allowance to Ireland depends on the airline and the fare you book. The table below shows typical long-haul allowances so you know roughly what to expect — always confirm the exact limits with your airline before you fly.
| Fare type | Hand baggage | Checked baggage |
|---|---|---|
| Basic / Light economy | 1 small under-seat bag | Usually none — add for a fee |
| Standard economy | 1 cabin bag + 1 personal item | Typically 1 × 23 kg |
| Premium economy | 1–2 cabin bags + personal item | Typically 2 × 23 kg |
| Business / First | 2 cabin bags + personal item | Typically 2 × 32 kg |
Indicative only. Allowances vary by airline, route and fare — always check your airline's baggage policy.
Packing & baggage tips
- Full-service carriers (e.g. British Airways, Turkish Airlines, KLM) usually include a checked bag on long-haul economy fares; basic/low-cost fares often don't.
- Cabin (hand) bag size is commonly around 56 × 45 × 25 cm — confirm your airline's limit before you pack.
- Liquids in hand luggage must be in containers of 100 ml or less, inside one clear resealable bag.
- Weigh your bags at home — airport excess-baggage fees are far higher than pre-booked allowances.
- Extra or heavier bags are almost always cheaper added online in advance than at the airport.
FAQs — booking Ireland flights
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