Cheap Flights from Dublin (DUB) to London (LHR)

Compare Dublin to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Dublin to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Dublin Airport to London Heathrow Airport? If you want to travel next month, return fares start from $164. Find the lowest prices on one-way and return tickets right here.

London.$139 per passenger.Departing Tue, 24 Nov, returning Mon, 30 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Tue, 24 Nov, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Mon, 30 Nov, arriving in Dublin.Price includes taxes and charges.From $139, select.

London.$139 per passenger.Departing Sat, 5 Dec, returning Sat, 12 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Sat, 5 Dec, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sat, 12 Dec, arriving in Dublin.Price includes taxes and charges.From $139, select.

London.$139 per passenger.Departing Tue, 24 Nov, returning Tue, 1 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Tue, 24 Nov, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Tue, 1 Dec, arriving in Dublin.Price includes taxes and charges.From $139, select.

London.$139 per passenger.Departing Mon, 8 Feb, returning Fri, 12 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Mon, 8 Feb, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Fri, 12 Feb, arriving in Dublin.Price includes taxes and charges.From $139, select.

London.$140 per passenger.Departing Thu, 10 Sep, returning Sun, 13 Sep.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Thu, 10 Sep, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sun, 13 Sep, arriving in Dublin.Price includes taxes and charges.From $140, select.

London.$140 per passenger.Departing Sat, 13 Mar, returning Sat, 3 Apr.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Sat, 13 Mar, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sat, 3 Apr, arriving in Dublin.Price includes taxes and charges.From $140, select.

London.$145 per passenger.Departing Wed, 12 May, returning Wed, 19 May.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Wed, 12 May, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Wed, 19 May, arriving in Dublin.Price includes taxes and charges.From $145, select.

London.$145 per passenger.Departing Thu, 1 Apr, returning Sat, 24 Apr.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Thu, 1 Apr, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sat, 24 Apr, arriving in Dublin.Price includes taxes and charges.From $145, select.

London.$146 per passenger.Departing Sat, 10 Oct, returning Sat, 7 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Sat, 10 Oct, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sat, 7 Nov, arriving in Dublin.Price includes taxes and charges.From $146, select.

London.$151 per passenger.Departing Sat, 23 Jan, returning Sun, 24 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Sat, 23 Jan, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sun, 24 Jan, arriving in Dublin.Price includes taxes and charges.From $151, select.

London.$153 per passenger.Departing Sat, 16 Jan, returning Sat, 6 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Sat, 16 Jan, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sat, 6 Mar, arriving in Dublin.Price includes taxes and charges.From $153, select.

London.$153 per passenger.Departing Wed, 23 Sep, returning Tue, 13 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Wed, 23 Sep, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Tue, 13 Oct, arriving in Dublin.Price includes taxes and charges.From $153, select.

London.$154 per passenger.Departing Tue, 15 Dec, returning Fri, 22 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Tue, 15 Dec, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Fri, 22 Jan, arriving in Dublin.Price includes taxes and charges.From $154, select.

London.$154 per passenger.Departing Thu, 4 Mar, returning Tue, 9 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Thu, 4 Mar, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Tue, 9 Mar, arriving in Dublin.Price includes taxes and charges.From $154, select.

London.$155 per passenger.Departing Sat, 30 Jan, returning Sat, 6 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Sat, 30 Jan, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sat, 6 Feb, arriving in Dublin.Price includes taxes and charges.From $155, select.

London.$156 per passenger.Departing Fri, 9 Oct, returning Thu, 15 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from Dublin on Fri, 9 Oct, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Thu, 15 Oct, arriving in Dublin.Price includes taxes and charges.From $156, select.

Find the cheapest month to fly from Dublin to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dublin to London Heathrow flights are currently cheapest in November.

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Direct flights from Dublin to London Heathrow

Dublin to London Heathrow: Alternative routes

Compare routes from Dublin to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Dublin to London: Flight information

The things to know before you go.

Cheapest flight found	$139
Cheapest month to fly	November
Average flight time	1 hr, 26 mins
Most popular airline	Aer Lingus
Average flights per week	606

Finding cheap flights from Dublin to London Heathrow: Frequently asked questions

How much are return flights from Dublin to London Heathrow?

The best price we found for a return flight from Dublin to London Heathrow is $139. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Dublin to London Heathrow?

1 hour and 26 minutes is the average flight time from Dublin to London Heathrow.

Which airlines fly direct from Dublin to London Heathrow?

Aer Lingus, British Airways and Qatar Airways fly direct from Dublin to London Heathrow.

How many flights are there a week from Dublin to London Heathrow?

As of July 2026, there are 606 flights per week flying from Dublin to London Heathrow.

When is the cheapest time to fly from Dublin to London Heathrow?

The cheapest month to fly from Dublin to London Heathrow is usually November.

Which upcoming date is cheapest to fly from Dublin Airport to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to London Heathrow Airport on Tuesday, 24 November 2026.

Can I get a direct flight from Dublin Airport to London Heathrow Airport?

Yes – the average flight time is 1 hour and 26 minutes.

How can I find the best flight deal to London Heathrow?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Dublin Airport to London Heathrow with?

Currently, British Airways offers the cheapest flight tickets to London Heathrow.

Flying from Dublin Airport (DUB) to London Heathrow Airport (LHR): what you need to know

Around 1 hour 25 minutes is how long you can expect to be travelling on a direct flight from Dublin Airport to London Heathrow Airport.
Dublin and London share the same timezone, UTC+0.
Each week, there are 121 Dublin Airport to London Heathrow Airport flights. If you prefer to be on board as soon as possible, go for the 06:30 Aer Lingus flight. If you'd rather make the most of your time before you fly, the latest flight is at 20:55 with British Airways.
To ensure you get on your DUB to LHR flight, leave plenty of time to check in and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the general rule.
You can expect longer lines in popular months such as July. Arriving up to four hours ahead of international flights and two hours for domestic departures will help ensure a smooth travel experience.
Aer Lingus has direct flights from Dublin Airport to London Heathrow Airport. Book with this popular carrier, then get ready to see the sights in London — and maybe even more of the United Kingdom if you have time.
Most passengers choose to travel with Aer Lingus on this route.
Aer Lingus is the most punctual carrier that offers DUB to LHR flights, with 74.06% of its services arriving as scheduled.
We make it a cinch to book a flight with a stopover. To see all your options for tickets from Dublin Airport to London Heathrow Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to tour your chosen city. Worthwhile stopovers between DUB and LHR include:
- Manchester Airport
- Glasgow Intl Airport
- Newcastle Airport

How to find the cheapest flights from Dublin Airport (DUB) to London Heathrow Airport (LHR)

The cheapest price we've found for a one-way Dublin Airport to London Heathrow Airport flight is $65. A return plane ticket is currently $139. Depending on the availability when you book, these fares may change.
Get cheap tickets from DUB to LHR by booking at least seven months ahead. According to our research, that's the sweet spot for finding a bargain.
December is the cheapest month for flights from Dublin Airport to London Heathrow Airport. If you need to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.
Picking up cheap flights from DUB to LHR is a cinch with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know as soon as a lower fare pops up.
Tailor your trip using filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Dublin Airport to London Heathrow Airport.

Handy information about Dublin Airport (DUB)

When it comes to Dublin Airport's on-time performance, 77% of flights complete their journey on time.
Dublin Airport is about 11 kilometres from central Dublin. If you're driving, catching a taxi or ride-sharing from the centre, it'll take you 25 minutes or so to arrive, depending on the traffic.
Catching public transport? You can expect a journey time of around 30 minutes.
Get your holiday off to a stress-free start by staying near DUB. Whether you have an early flight from Dublin Airport to London Heathrow Airport or want to avoid feeling rushed, these hotels are the answer:

Arriving at London Heathrow Airport (LHR)

Consider staying in a hotel near LHR if you're taking a late Dublin Airport to London Heathrow Airport flight. Select one of these options and skip the long transfer:
Pick up a London Heathrow Airport rental car and discover London and beyond with your own wheels. Surprice, U-Save and Green Motion are top outlets you can book with here.
Reserving your ride from London Heathrow Airport about one week ahead can help you secure the lowest rate.

Getting from London Heathrow Airport (LHR) to central London

London Heathrow Airport to the centre of London has a drive time of about 45 minutes. It's approximately 24 kilometres away.
If you're using public transport, expect a journey of about 25 minutes.

When to fly to London Heathrow Airport (LHR)

The quietest month for a flight from Dublin Airport to London Heathrow Airport is March, while July is the busiest. Choose the best time to go to London based on whether you prefer a laid-back vibe or a more bustling atmosphere.
The warmest month in London is July, with the temperature ranging between 11ºC (52ºF) and 26ºC (79ºF). Book your flights from Dublin Airport to London Heathrow Airport in this month if you enjoy this type of weather.
If you want to travel in cooler conditions, look for a cheap ticket from DUB to LHR in January. Average temperatures are between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of the United Kingdom

You've visited London, now it's time to explore other corners of the United Kingdom. Journey around 257 kilometres north-west to Manchester to check off its must-visit sights. From Manchester United Museum & Stadium Tour to The Homes of Football and Museum of Science and Industry, you'll have a full itinerary ahead.
If there's time to check out another major stop in the United Kingdom, consider Birmingham, about 161 kilometres north-west of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are among its highlights.