LHR - DUB

$54 Find Cheap Flights from London Heathrow Airport to Dublin - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$102
Typical prices: $134-$208
Aer Lingus
Tue 11/13Fri 11/16
LHR - DUB • Non-stop
Cheapest one-way
$54
Typical prices: $97-$157
Aer Lingus
Wed 2/28
LHR - DUB • Non-stop
Advice from real travelers
British Airways Euro Traveller includes a carry-on; Aer Lingus AerSpace adds comfort.
At Heathrow, arrive early; it can be overcrowded, especially with checked bags.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with Aer Lingus and British Airways. Average duration is 1h 25m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 86% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $314 (round-trip)
Shortest trip • 5h 14m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dublin!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Heathrow to Dublin (LHR-DUB)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Heathrow to Dublin

Fri, Nov 13 - Mon, Nov 16
Aer Lingus Logo
3:10 pm - 4:35 pmLHR  London Heathrow-DUB Dublin
1h 25mnonstop
Aer Lingus Logo
7:45 pm - 9:05 pmDUB  Dublin-LHR London Heathrow
1h 20mnonstop
$102Aer Lingus
Wed, Nov 25 - Wed, Dec 2
Aer Lingus Logo
7:45 pm - 9:05 pmLHR  London Heathrow-DUB Dublin
1h 20mnonstop
Aer Lingus Logo
3:30 pm - 4:50 pmDUB  Dublin-LHR London Heathrow
1h 20mnonstop
$104Aer Lingus
Tue, Dec 8 - Sat, Dec 12
Aer Lingus Logo
8:50 am - 10:15 amLHR  London Heathrow-DUB Dublin
1h 25mnonstop
Aer Lingus Logo
6:30 pm - 7:50 pmDUB  Dublin-LHR London Heathrow
1h 20mnonstop
$104Aer Lingus
Sat, Mar 6 - Wed, Mar 10
Aer Lingus Logo
7:50 am - 9:10 amLHR  London Heathrow-DUB Dublin
1h 20mnonstop
Aer Lingus Logo
12:05 pm - 1:25 pmDUB  Dublin-LHR London Heathrow
1h 20mnonstop
$104Aer Lingus
Sat, Jan 16 - Mon, Jan 18
Multiple Airlines Logo
4:20 pm - 5:45 pmLHR  London Heathrow-DUB Dublin
1h 25mnonstop
Multiple Airlines Logo
8:40 pm - 10:00 pmDUB  Dublin-LHR London Heathrow
1h 20mnonstop
$107Multiple Airlines
Sat, Nov 21 - Sat, Nov 28
British Airways Logo
6:30 am - 7:50 amLHR  London Heathrow-DUB Dublin
1h 20mnonstop
British Airways Logo
5:55 pm - 7:15 pmDUB  Dublin-LHR London Heathrow
1h 20mnonstop
$109British Airways
Mon, Feb 15 - Mon, Feb 22
British Airways Logo
6:30 am - 7:50 amLHR  London Heathrow-DUB Dublin
1h 20mnonstop
British Airways Logo
10:50 am - 12:20 pmDUB  Dublin-LHR London Heathrow
1h 30mnonstop
$109British Airways
Tue, Nov 24 - Wed, Dec 2
British Airways Logo
6:30 am - 7:50 amLHR  London Heathrow-DUB Dublin
1h 20mnonstop
British Airways Logo
3:10 pm - 4:35 pmDUB  Dublin-LHR London Heathrow
1h 25mnonstop
$109British Airways
Tue, Jan 19 - Fri, Jan 22
Multiple Airlines Logo
2:15 pm - 3:40 pmLHR  London Heathrow-DUB Dublin
1h 25mnonstop
Multiple Airlines Logo
8:35 pm - 9:55 pmDUB  Dublin-LHR London Heathrow
1h 20mnonstop
$109Multiple Airlines
Sat, Mar 6 - Wed, Mar 10
Multiple Airlines Logo
8:45 pm - 10:05 pmLHR  London Heathrow-DUB Dublin
1h 20mnonstop
Multiple Airlines Logo
9:00 am - 10:30 amDUB  Dublin-LHR London Heathrow
1h 30mnonstop
$111Multiple Airlines
Booking Insights

Price, demand and travel trends for London Heathrow Airport to Dublin flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from London Heathrow Airport to Dublin?

Round-trip flights from London Heathrow Airport to Dublin typically range from $134 to $208. The lowest price found in the past 5 days was $102, on Aer Lingus.

What's the cheapest day of the week to fly from London Heathrow Airport to Dublin?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from London Heathrow Airport to Dublin. It’s 6% cheaper than the average day, while Thursday is the most expensive, with prices 4% higher.

What’s the cheapest month to fly from London Heathrow Airport to Dublin?

•January is the cheapest month to fly from London Heathrow Airport to Dublin at $136 round-trip.
•December ($185) and July ($181) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 36% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from London Heathrow Airport to Dublin the cheapest?

Flights from London Heathrow Airport to Dublin are cheapest 18 weeks before departure. Booking in this window typically costs about 45% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Heathrow to Dublin

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Ramsey Qubein

Ramsey Qubein

Expert on DUB

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Key details for London Heathrow Airport to Dublin flights

Low season

December

Cheapest flight

$54
Beat the crowds with an average 16% drop in travelers.
The most popular month to fly with an average 25% increase in travelers.
One-way flight from London Heathrow Airport to Dublin

When to book flights from Heathrow to Dublin

Are your dates flexible? Find out the best times to travel from Heathrow to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Heathrow to Dublin: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Heathrow to Dublin 
DeborahFlew with Aer Lingus-Jun 2025
Heathrow seems to have a lot of plane traffic so make sure you have a good cushion of time if you have connecting flights. I had a 2 hour layover but ended up having to run to make sure I got to the other gate in time.
Verified travelerFlew with Aer Lingus-Jun 2025
If you’re doing a transfer speak to someone at the desk don’t use an automated kiosk
ThomasFlew with Aer Lingus-Oct 2024
You will likely have to walk a lot more than you might expect to make a connection.

Your London Heathrow Airport to Dublin flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from London Heathrow Airport to Dublin?

    These are the earliest and latest flight times available from London Heathrow Airport to Dublin:

    • Earliest: departs at 6:15 am and lands at 7:40 am
    • Latest: departs at 9:10 pm and lands at 10:35 pm.

    The flight takes about 1h 25m.

  • What cabin classes can I book on flights from London Heathrow Airport to Dublin?

    Three cabin classes are available on flights from London Heathrow Airport to Dublin:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from London Heathrow Airport to Dublin?

    A nonstop flight from London Heathrow Airport to Dublin takes 1h 25m, covering 279 miles.

  • Do I need a passport to fly from London Heathrow Airport to Dublin?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London Heathrow Airport to Dublin flight?

    Round-trip flights from London Heathrow Airport to Dublin range from $134 to $208, with an average of $167 over the past 12 months. Anything below $134 counts as a good deal.

  • How expensive are last-minute London Heathrow Airport to Dublin flights?

    Last-minute fares on this route (booked within two weeks of departure) run 30% above the $167 route average. Book 18 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from London Heathrow Airport to Dublin?

    On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $167 round-trip, compared to $314 via a layover through Zurich (ZRH).

  • What is the standard checked-bag allowance on flights from London Heathrow Airport to Dublin?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $23–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from London Heathrow Airport to Dublin?

    The Airbus A320neo family is used most often on this route, operated mainly by Aer Lingus and British Airways. Other aircraft seen on the route include Boeing 777 variants.

  • How are flight departures from London Heathrow Airport to Dublin spread across the day?

    Morning is the busiest departure period on London Heathrow Airport to Dublin flights, with 38% of flights leaving in that window. Afternoon departures account for 37%, evening flights for 25%, and night flights for 0%.

  • How are flight prices from London Heathrow Airport to Dublin looking right now?

    One-way fares from London Heathrow Airport to Dublin are currently lower than usual. Average one-way flight prices are about $66, which is 45% below the typical average for this route.

  • What car rental options are available at Dublin Airport (DUB)?

    Dublin Airport (DUB) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

    • Budget
    • Sixt
    • Easirent
    • Europcar
    • Thrifty

  • Which airports can I use when flying from London Heathrow Airport to Dublin?

    Flights from London Heathrow Airport to Dublin usually depart from London Heathrow (LHR) and arrive at Dublin (DUB).

  • What time of day has the fewest delays on flights from London Heathrow Airport to Dublin?

    Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight considered delayed from London Heathrow Airport to Dublin?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London Heathrow Airport to Dublin route, 14% of flights were delayed in the past 3 months, with delays averaging 1h 47m.

  • Which airports do connecting flights from London Heathrow Airport to Dublin pass through?

    One-stop flights from London Heathrow Airport to Dublin most commonly connect through:

    • Amsterdam Schiphol (AMS) - 57% of one-stop connections
    • Zurich (ZRH) - 29% of one-stop connections
    • Frankfurt am Main (FRA) - 14% of one-stop connections

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Dublin?

    Yes. Flexible dates can save you up to 11% on flights from London Heathrow Airport to Dublin. Saturday is the cheapest departure day at $157 round-trip on average, while Thursday is the most expensive at $175, a difference of $18.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What airlines fly from London Heathrow Airport to Dublin?

    2 airlines operate flights between London Heathrow Airport and Dublin. The airlines offering nonstop flights on this route include:

    • Aer Lingus
    • British Airways

  • How much time can I save by choosing a different layover airport from London Heathrow Airport to Dublin?

    Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 5h 14m, compared with 9h 52m via Zurich (ZRH) and 9h 56m via Amsterdam Schiphol (AMS).

  • What popular places can I visit in Dublin?

    Some of the most popular sights in Dublin are St. Stephen's Green, St. Patrick's Cathedral and Aviva Stadium. These are among the most viewed places in Dublin on KAYAK.

  • Which airlines offer extra legroom and free seat selection on London Heathrow Airport to Dublin flights?

    Among airlines operating London Heathrow Airport to Dublin flights:

    • Aer Lingus: offers extra legroom; offers free seat selection
    • British Airways: offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on London Heathrow Airport to Dublin flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Aer Lingus: a cabin bag and a checked bag in Economy Class
    • British Airways: a cabin bag and a checked bag in Economy Class
    • American Airlines: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Can I transfer from Dublin Airport (DUB) to Dublin city centre by public transport?

    Yes, you can take the Dublin Bus, which runs between Dublin Airport and the city centre. They depart from the Bus Park of Zone 15 approx. every 15-30min. The fastest option is the 747 Airlink Express costing around €7. Tickets can be purchased either on the bus or online and leave around every 10min. Journey times can take up to 1h.

  • What services are available at London Heathrow Airport for hidden disabilities?

    Remember to request specialist assistance from your airline at least 48h before departure. When you arrive at your terminal, you can pick up a sunflower lanyard from the assistance desk. This will ensure discretion, and staff will be more easily able to identify you if you need extra support at any time.

  • What rail transport options are available from central London to London Heathrow Airport?

    The fastest option would be the Heathrow Express train service, which travels non-stop direct between Paddington station and all terminals, taking around 15min. A standard ticket bought on the day will cost you around £25 (€30). Advance fares can work out a lot cheaper starting around £5.50 (€6.50). Another option would be to take the London Underground Piccadilly Line, which connects to all terminals. This is a cheaper option with fares ranging from £3-6 (€3.50-7) but takes longer, usually around 1h. There is also the TfL Rail link from west or central London stations, taking around 30min and costing around £11 (€13).

Your guide to booking London Heathrow Airport to Dublin flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Thursday. On this route, Saturday flights average $157, about $18 less than Thursday fares (10% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 45% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Heathrow Airport to Dublin trip for January. Fares historically average $136 round-trip in that month - typically $49 less than the most expensive month, which is December (based on the last 12 months).
  • For the best chance of arriving on time, fly with Aer Lingus. Over the past three months, 86% of Aer Lingus flights from London Heathrow Airport to Dublin arrived on time, slightly above the route average of 86%. When flights on this route arrive late, they're delayed by an average of 1h 47m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Dublin Airport.

    • Clayton Hotel Dublin Airport
    • Maldron Hotel Dublin Airport
    • Metro Hotel Dublin Airport
  • Download the Heathrow App to take advantage of the food and drink pre-ordering service with participating outlets at London Heathrow Airport (LHR). You can either consume in the terminal areas or take your purchases with you on-board your flight.
  • The Park & Ride service at Heathrow Airport is the most economical for long-term stays with prices starting around £8 (€9) per day. A free shuttle bus will transfer you to your required terminal, taking around 5-15min, depending on the distance between your terminal and the car park you are using.
  • London Heathrow is the UK’s busiest airport, operating four terminals. Make sure to check with your airline which terminal you need to depart from. Terminals are connected to each other by underpasses, buses 482 and 490, the Heathrow Express Rail Link, and the London Underground Piccadilly Line.

Prefer to fly direct from London Heathrow Airport to Dublin?

 
Find which airlines fly direct from London Heathrow Airport to Dublin Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Dublin

Monday

Aer Lingus,British Airways

Aer Lingus,British Airways

Tuesday

Aer Lingus,British Airways

Aer Lingus,British Airways

Wednesday

Aer Lingus,British Airways

Aer Lingus,British Airways

Thursday

Aer Lingus,British Airways

Aer Lingus,British Airways

Friday

Aer Lingus,British Airways

Aer Lingus,British Airways

Saturday

Aer Lingus,British Airways

Aer Lingus,British Airways

Sunday

Aer Lingus,British Airways

Aer Lingus,British Airways

See more direct flights

Direct returns

Dublin to London Heathrow

Monday

Aer Lingus,British Airways

Aer Lingus,British Airways

Tuesday

Aer Lingus,British Airways

Aer Lingus,British Airways

Wednesday

Aer Lingus,British Airways

Aer Lingus,British Airways

Thursday

Aer Lingus,British Airways

Aer Lingus,British Airways

Friday

Aer Lingus,British Airways

Aer Lingus,British Airways

Saturday

Aer Lingus,British Airways

Aer Lingus,British Airways

Sunday

Aer Lingus,British Airways

Aer Lingus,British Airways

See more direct flights

More options for your flight from Heathrow to Dublin

Complete your trip to Dublin with a hotel stay or car rental