Cheap flights from London Heathrow Airport to Dublin from £38
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
21 Oct — 28 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or February, booked 87 days in advance, depart on a Friday or Saturday and return on a Friday
Cheap flight deals from Heathrow to Dublin
Enter your travel dates to find the best prices.
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Best
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One-way
Cheapest flights from Heathrow to Dublin
Explore the most affordable flight options available from Heathrow to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.
Fri 11/1206:30 -
Nonstop1h 20m
Mon 14/1220:40 -
Nonstop1h 20m
Deal found 20/9£61
Wed 4/1110:40 -
Nonstop1h 30m
Wed 11/1110:30 -
Nonstop1h 30m
Deal found 20/9£71
Tue 3/1113:55 -
Nonstop1h 30m
Tue 10/1120:40 -
Nonstop1h 20m
Deal found 19/9£72
Mon 2/1108:25 -
Nonstop1h 30m
Mon 9/1120:40 -
Nonstop1h 20m
Deal found 18/9£73
Tue 3/1108:50 -
Nonstop1h 25m
Tue 10/1119:45 -
Nonstop1h 20m
Deal found 19/9£74
Wed 4/1116:20 -
Nonstop1h 25m
Wed 11/1119:45 -
Nonstop1h 20m
Deal found 20/9£75
Fri 16/1006:20 -
Nonstop1h 25m
Sat 31/1020:40 -
Nonstop1h 20m
Deal found 21/9£75
Sat 7/1106:30 -
Nonstop1h 20m
Mon 23/1120:40 -
Nonstop1h 20m
Deal found 20/9£76
Tue 29/915:50 -
Nonstop1h 25m
Thu 1/1008:35 -
Nonstop1h 35m
Deal found 18/9£77
Thu 8/1015:50 -
Nonstop1h 25m
Sat 10/1018:45 -
Nonstop1h 15m
Deal found 21/9£78
Mon 9/1108:25 -
Nonstop1h 30m
Tue 17/1108:50 -
Nonstop1h 30m
Deal found 18/9£78
Thu 5/1115:30 -
Nonstop1h 30m
Mon 9/1120:40 -
Nonstop1h 20m
Deal found 17/9£79
Best flights from Heathrow to Dublin
Discover carefully curated flight deals from Heathrow to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.
Tue 10/1106:30 -
Nonstop1h 20m
Thu 12/1108:50 -
Nonstop1h 30m
Deal found 20/9£82
Thu 24/1206:30 -
Nonstop1h 20m
Thu 24/1220:40 -
Nonstop1h 20m
Deal found 20/9£96
Wed 7/1015:30 -
Nonstop1h 30m
Sat 10/1018:45 -
Nonstop1h 15m
Deal found 17/9£98
Sun 11/1008:15 -
Nonstop1h 25m
Wed 14/1010:30 -
Nonstop1h 30m
Deal found 21/9£103
Sun 1/1117:20 -
Nonstop1h 20m
Sun 1/1120:40 -
Nonstop1h 20m
Deal found 16/9£110
Sat 24/1016:20 -
Nonstop1h 30m
Mon 26/1020:40 -
Nonstop1h 20m
Deal found 20/9£111
Wed 21/1017:20 -
Nonstop1h 30m
Fri 23/1008:35 -
Nonstop1h 35m
Deal found 18/9£115
Sun 25/1017:20 -
Nonstop1h 20m
Wed 28/1015:10 -
Nonstop1h 25m
Deal found 19/9£122
Wed 23/1206:30 -
Nonstop1h 20m
Tue 29/1220:40 -
Nonstop1h 20m
Deal found 20/9£135
Sun 18/1008:15 -
Nonstop1h 25m
Fri 23/1008:35 -
Nonstop1h 35m
Deal found 19/9£154
Direct flights from Heathrow to Dublin
Explore direct flight options from Heathrow to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 September 2026.
Fri 11/1206:30 -
Nonstop1h 20m
Mon 14/1220:40 -
Nonstop1h 20m
Deal found 20/9£61
Wed 4/1110:40 -
Nonstop1h 30m
Wed 11/1110:30 -
Nonstop1h 30m
Deal found 20/9£71
Tue 3/1113:55 -
Nonstop1h 30m
Tue 10/1120:40 -
Nonstop1h 20m
Deal found 19/9£72
Mon 2/1108:25 -
Nonstop1h 30m
Mon 9/1120:40 -
Nonstop1h 20m
Deal found 18/9£73
Tue 3/1108:50 -
Nonstop1h 25m
Tue 10/1119:45 -
Nonstop1h 20m
Deal found 19/9£74
Wed 4/1116:20 -
Nonstop1h 25m
Wed 11/1119:45 -
Nonstop1h 20m
Deal found 20/9£75
Fri 16/1006:20 -
Nonstop1h 25m
Sat 31/1020:40 -
Nonstop1h 20m
Deal found 21/9£75
Sat 7/1106:30 -
Nonstop1h 20m
Mon 23/1120:40 -
Nonstop1h 20m
Deal found 20/9£76
Thu 8/1015:50 -
Nonstop1h 25m
Sat 10/1018:45 -
Nonstop1h 15m
Deal found 21/9£78
Mon 9/1108:25 -
Nonstop1h 30m
Tue 17/1108:50 -
Nonstop1h 30m
Deal found 18/9£78
Thu 5/1115:30 -
Nonstop1h 30m
Mon 9/1120:40 -
Nonstop1h 20m
Deal found 17/9£79
Last-minute flights from Heathrow to Dublin
Discover last-minute flight deals from Heathrow to Dublin. Data last updated 21 September 2026 and is based on user searches.
Tue 29/915:50 -
Nonstop1h 25m
Thu 1/1008:35 -
Nonstop1h 35m
Deal found 18/9£77
Sat 3/1020:10 -
Nonstop1h 20m
Sat 10/1018:45 -
Nonstop1h 15m
Deal found 18/9£80
Tue 6/1015:10 -
Nonstop1h 25m
Tue 13/1019:30 -
Nonstop1h 15m
Deal found 20/9£81
Tue 6/1015:50 -
Nonstop1h 25m
Tue 6/1019:30 -
Nonstop1h 15m
Deal found 19/9£81
Wed 7/1015:50 -
Nonstop1h 25m
Mon 12/1008:30 -
Nonstop1h 35m
Deal found 21/9£79
Thu 8/1015:50 -
Nonstop1h 25m
Sat 10/1018:45 -
Nonstop1h 15m
Deal found 21/9£78
Sat 10/1007:40 -
Nonstop1h 20m
Tue 13/1019:30 -
Nonstop1h 15m
Deal found 19/9£84
Thu 15/1021:10 -
Nonstop1h 20m
Thu 29/1019:45 -
Nonstop1h 20m
Deal found 17/9£83
Thu 15/1015:50 -
Nonstop1h 25m
Thu 22/1012:30 -
Nonstop1h 25m
Deal found 17/9£84
Fri 16/1006:20 -
Nonstop1h 25m
Sat 31/1020:40 -
Nonstop1h 20m
Deal found 21/9£75
Tue 20/1013:25 -
Nonstop1h 25m
Tue 3/1120:40 -
Nonstop1h 20m
Deal found 20/9£78
Wed 28/1007:50 -
Nonstop1h 20m
Thu 29/1007:35 -
Nonstop1h 30m
Deal found 18/9£82
One-way flights from Heathrow to Dublin
Search for one-way flight options from Heathrow to Dublin. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.
Sat 3/1019:10 -
Nonstop1h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 20/9£38
Thu 15/1013:25 -
Nonstop1h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 18/9£40
Sat 14/1116:20 -
Nonstop1h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 21/9£40
Tue 13/1016:50 -
Nonstop1h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/9£42
Thu 8/1015:10 -
Nonstop1h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 18/9£43
Sat 17/1016:50 -
Nonstop1h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 18/9£44
Mon 19/1019:35 -
Nonstop1h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/9£46
Tue 20/1007:40 -
Nonstop1h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 20/9£47
Find flight deals from Heathrow to Dublin
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Dublin (DUB). 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 21 September 2026.
Customise your flight search to find flights from Heathrow to Dublin 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 7,457,451 searches. Data last updated 21 September 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Dublin that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
Fastest return journey
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Mon 26/10
06:30-07:50
Nonstop1h 20m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£62
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Sat 10/10
16:20-17:50
Nonstop1h 30m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£63
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Sun 25/10
18:45-20:05
Nonstop1h 20m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£64
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Fri 13/11
06:30-07:50
Nonstop1h 20m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£64
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Tue 13/10
17:10-18:40
Nonstop1h 30m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£65
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Thu 25/2
08:25-09:55
Nonstop1h 30m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£65
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Tue 5/1
18:25-19:45
Nonstop1h 20m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£65
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Sun 11/10
08:15-09:40
Nonstop1h 25m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£70
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Mon 21/12
06:30-07:50
Nonstop1h 20m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£75
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Tue 22/12
06:30-07:50
Nonstop1h 20m
Dublin
Wed 31/12
00:00-00:00
Nonstop0h 00m
£75
Flights are sorted by cheapest return flights first.
Deals found on 21/9
Showing 1-10 of 21 resultsSorted by cheapest first
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2
3
Best time to book a flight from Heathrow to Dublin
Have a flexible travel schedule? Discover the best time to fly to Dublin from Heathrow with our price prediction graph.
LHR-DUB
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.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Dublin
Prices
Airlines
Delays
How far ahead should I book a flight from London Heathrow Airport to Dublin?
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Dublin, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from London Heathrow Airport to Dublin?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of £109). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of £149). 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 LHR to DUB?
Find hourly flight availability from Heathrow to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 September 2026.
It’s optimal to fly from London Heathrow Airport to Dublin in the afternoon. By choosing this option you can save up to 70% on the cost of your flight, compared to a flight in the morning.
What is the cheapest day to fly from London Heathrow Airport to Dublin?
Use this chart to determine the cheapest time to fly return from Heathrow to Dublin. Price data was last updated on 19 September 2026.
Travellers seeking maximum savings on their London Heathrow Airport to Dublin flight should consider departing on Saturday afternoons 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.
How much does it cost for a return flight from London Heathrow Airport to Dublin?
Airfare is below average for this route at the moment.
London Heathrow Airport to Dublin flights typically cost between £102 and £157 in December.The cheapest return price found within the last 5 days was £61 on British Airways (11 Dec–14 Dec).
Weekly flight availability from London Heathrow Airport to Dublin
Explore weekly flight availability from Heathrow to Dublin. 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 21 September 2026.
The most flights from LHR to DUB are scheduled on a Friday (70 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (35 on average).
How often are flights from London to Dublin delayed?
About 14% of weekly flights between London and Dublin have experienced delays in the past year, with the average delay time being 105 minutes.
What is the most punctual flight time for London to Dublin flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Dublin flights?
Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 13% of flights being delayed.
Reviews of airlines servicing Dublin
Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated 21 September 2026.
Check out reviews from past customers who have flown with Aer Lingus,Ryanair, andBritish Airways from London Heathrow Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Flight crew were very nice and friendly and very professional. I enjoyed my flights.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Dublin from London Heathrow?
If you book a flight to Dublin from London Heathrow, you will be flying to Dublin, which is the city’s only airport. Dublin (DUB) is located 5.7 mi from the center of Dublin. There are 54 flights from London Heathrow to Dublin per day from 3 different airlines.
How long is the flight from London Heathrow Airport to Dublin?
Departing from London Heathrow Airport to Dublin will take you 1h 20m. Airlines will cover a distance of 279 mi. Generally, flights for this route are direct.
What are the cheapest airlines flying from London Heathrow Airport to Dublin round-trip?
Our cheapest airline available from London Heathrow Airport to Dublin is Ryanair. Our recent data shows that you can find tickets from as low as £38 on this airline. Additional options worth looking into are British Airways and Aer Lingus, starting at £74 and £104 round-trip. Ryanair is currently priced 71% below the average price you’ll pay for this route.
What are the most reliable airlines from London Heathrow Airport to Dublin?
Before booking your flight to Dublin from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (89%), Aer Lingus (81%), Qatar Airways( 80%).
What are the cheapest flights from London Heathrow Airport to Dublin?
Looking at all options, your cheapest flight can be booked for £71. While the most popular route (London Heathrow - Dublin) can be booked for £61 on average, our data indicates £748 when flying from London Heathrow Airport to Dublin.
Can I find deals for business class flights from Heathrow to Dublin?
Yes. Cheapflights offers flight deals from Heathrow to Dublin 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 Heathrow Airport to Dublin?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Dublin (average of £109). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of £149). 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.
Book flights to Dublin if you plan to visit one of these locations
Arklow
Cavan
Swords
Portmarnock
Athlone
Dundalk
Bray
Wicklow
Malahide
Maynooth
Drogheda
Kildare
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Fly from Heathrow to Dublin on these airlines
Choose from the following airlines for your flight from Heathrow to Dublin. Flights are based on user searches made on Cheapflights and were last updated on 21 September 2026.
Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 21 September 2026.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 21 September 2026.
Discover the top 3 airlines that operate flights from Heathrow to Dublin. 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 7,457,451 searches. Data last updated 21 September 2026.
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 Heathrow to Dublin?
Cheapflights helps you search for flights from Heathrow to Dublin via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Dublin?
Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Dublin for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Heathrow to Dublin with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Dublin, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Heathrow to Dublin become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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