Cheap flights from Ireland to Heathrow

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How to find the cheapest flight from
Ireland to Heathrow (LHR)

All the information you need to plan the best null to LHR flight in 2021: compare Ireland to Heathrow flight prices with the expected peak season, weather and rainfall in Heathrow.
How far in advance should I book a flight from Ireland to London Heathrow Airport?

Users have found that booking a flight from Ireland to London Heathrow Airport at least 54 days early can save you up to 97% on average compared to booking a flight this week. If booking 54 days before your flight isn’t an option for you, users have found flights from Ireland to London Heathrow Airport for as little as £80 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £107 for flights departing within the next 3 days.

What is the cheapest month to fly from Ireland to London Heathrow Airport?

The best pricing can be found in the month of August. Prices to London Heathrow Airport from Ireland average £64. You can even find prices in August for less than £64, as users have found deals to London Heathrow Airport from as low as £25. The month of December appears to be one of the more expensive times to travel to London Heathrow Airport from Ireland. Flying in the targeted month can save you up to 26%.

When is the cheapest time to fly from Ireland to London Heathrow Airport (IE0 - LHR)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to London Heathrow Airport as you normally would.

Cheap flights from Ireland to Heathrow in September, October 2021

The best prices found for Ireland to LHR flights in September, October
14 Oct - 19 Oct
£51pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin
13 Oct - 14 Oct
£53pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin
15 Oct - 18 Oct
£55pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin

Ireland to Heathrow 2021 flight deals

Cheap flights to Heathrow from Ireland found for this year
19 Dec - 22 Jan
£46pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin
19 Dec - 22 Jan
£47pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin
14 Oct - 19 Oct
£51pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin

Direct flights to Heathrow from Ireland

Save time with Ireland to Heathrow direct flight deals
8 Feb - 15 Feb
£44pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin
19 Dec - 22 Jan
£46pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin
19 Dec - 22 Jan
£47pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin

Last-minute flights from Ireland to Heathrow

Late deals on return flights to Heathrow from Ireland, departing today and this week
22 Sep - 8 Nov
£67pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin
21 Sep - 9 Oct
£70pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin
23 Sep - 28 Sep
£72pp
DUB
Dublin
British Airways
Direct
LHR
London Heathrow
LHR
London Heathrow
British Airways
Direct
DUB
Dublin

One-way flights to Heathrow from Ireland

The cheapest one-way flights from Ireland to Heathrow
16:40 - 17:55
British Airways
Direct
1h 15m
DUB - LHR
British Airways
14:10 - 15:30
British Airways
Direct
1h 20m
DUB - LHR
British Airways
13:20 - 14:45
British Airways
Direct
1h 25m
DUB - LHR
British Airways

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ireland</span> to <span class="emphasized">Heathrow</span> flights.

Flight FAQs

From Ireland to Heathrow

Which airlines flying from Ireland to London Heathrow have flexible cancellations due to COVID-19?

British Airways, Aer Lingus, and Ryanair are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Are flight prices decreasing from Ireland to London Heathrow Airport due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ireland and London Heathrow Airport for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Ireland to London Heathrow Airport for under £100 on Cheapflights?

Yes, there are multiple flights from Ireland to London Heathrow Airport for under £100. The cheapest flight booked recently is on British Airways for just £43, but on average you can expect to pay £52.

Are there direct flights from Ireland to London Heathrow Airport for under £100 on Cheapflights?

Cheapflights has 20 direct flights from Ireland to London Heathrow Airport under £100. A good price for a direct flight from Ireland to London Heathrow Airport is less than £54.

Are there last-minute flights available from Ireland to London Heathrow Airport for under £100?

There are currently 20+ open flights from Ireland to London Heathrow Airport within the next 7 days for less than £100.

What days are direct flights available from Ireland to London Heathrow Airport?

Direct flights can be found on the following days: Tuesday, Thursday, Friday, Saturday.

How many flights depart from Ireland to London Heathrow Airport on average per day?

17 flight departures from Ireland to London Heathrow Airport per day on average.
Morning (6am - Midday) - 71% of flight departures
Afternoon (Midday - 6pm) - 29% of flight departures

How long is the flight from Ireland to London Heathrow Airport?

Airlines like British Airways fly from Ireland to London Heathrow Airport in about 1h 20m. The time it takes to get you to your destination is usually consistent. The distance between Ireland and London Heathrow Airport is about 281 mi. Most flights are nonstop.

COVID Restrictions

View COVID Travel Restrictions for Heathrow (LHR)

Do I need a COVID test to fly to Heathrow from Ireland?

Information is based on travel restrictions from Ireland to London Heathrow

Most visitors from Ireland need to provide a negative COVID-19 test result and/or quarantine to enter London Heathrow.

COVID-19 testing requirements
Visitors from Ireland must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London Heathrow.

Quarantine requirements
Visitors from Ireland are not required to quarantine after entering London Heathrow.

Documents
Mandatory passenger locator form - Submit the form any time in the 48 hours before arriving in the UK. Show the form when checking in your plane, train or ferry to the UK.

Managed quarantine package for Scotland - All travelers arriving directly to Scotland are required to book their Managed Quarantine Package prior to travel.

COVID-19 testing package - All travelers must book and pay for a COVID-19 Testing Package prior to travel to England and Scotland.


Do I need a test to fly back to Ireland from Heathrow?

Returning to Ireland from London Heathrow

COVID-19 testing requirements
Visitors from London Heathrow must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ireland.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering Ireland.

Hide COVID Travel Restrictions for Heathrow (LHR)

Departure points for flights from Ireland to Heathrow

Select to see more specific information for flights to Heathrow from all departure points in Ireland.

Destination information for Heathrow

Things to know before you go - useful duration and weather info for your trip from Ireland to Heathrow.
Today's exchange rate
£1 = £1.00
Flight duration from Ireland to London Heathrow
1h 25m
Average temperature for September in Heathrow
20.0 °C
Avg rainfall for September in Heathrow
53.0 mm

Airports servicing

Dublin (DUB)
Galway (GWY)
Knock (NOC)
Cork (ORK)
Shannon (SNN)

Airports servicing London

Top 3 airlines flying from Ireland to London Heathrow

The chart below displays the airlines Cheapflights users travelling from Ireland to Heathrow choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Ryanair
£42 £60 No cancel fee N/A
Search Ryanair flights
British Airways
£84 £131 No cancel fee 70%
Search British Airways flights
Aer Lingus
£100 £183 No cancel fee N/A
Search Aer Lingus flights
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