Cheap flights from London Heathrow Airport to Dublin from C$ 89
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DUB
18 Nov — 25 Nov1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Dublin are usually found in January or October, booked 87 days in advance, depart on a Monday or Wednesday and return on a Thursday
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 19 October 2026.
Wed 2/128:10 a.m. -
Nonstop1h 30m
Wed 9/123:10 p.m. -
Nonstop1h 25m
Deal found 18/10C$ 159
Tue 1/126:30 a.m. -
Nonstop1h 20m
Fri 4/123:00 p.m. -
Nonstop1h 25m
Deal found 16/10C$ 161
Sat 28/116:25 p.m. -
Nonstop1h 20m
Mon 30/118:40 p.m. -
Nonstop1h 20m
Deal found 19/10C$ 164
Fri 11/126:30 a.m. -
Nonstop1h 20m
Fri 11/123:50 p.m. -
Nonstop1h 25m
Deal found 18/10C$ 168
Sat 7/113:25 p.m. -
Nonstop1h 30m
Sat 14/113:10 p.m. -
Nonstop1h 25m
Deal found 18/10C$ 171
Mon 28/126:30 a.m. -
Nonstop1h 20m
Thu 31/128:40 p.m. -
Nonstop1h 20m
Deal found 18/10C$ 172
Thu 17/126:30 a.m. -
Nonstop1h 20m
Mon 4/18:40 p.m. -
Nonstop1h 20m
Deal found 15/10C$ 173
Tue 24/113:35 p.m. -
Nonstop1h 30m
Sat 28/118:40 p.m. -
Nonstop1h 20m
Deal found 15/10C$ 178
Sat 7/113:25 p.m. -
Nonstop1h 30m
Sat 7/118:40 p.m. -
Nonstop1h 20m
Deal found 19/10C$ 179
Sun 13/128:25 a.m. -
Nonstop1h 30m
Sun 13/127:25 p.m. -
Nonstop1h 20m
Deal found 15/10C$ 181
Best flights from Heathrow to Dublin
Discover carefully curated flight deals from Heathrow to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 19 October 2026.
Fri 9/46:20 a.m. -
Nonstop1h 25m
Fri 23/48:10 p.m. -
Nonstop1h 15m
Deal found 18/10C$ 179
Fri 29/19:00 a.m. -
1 stop8h 45m
Sun 31/110:50 a.m. -
1 stop7h 45m
Deal found 19/10C$ 303
Mon 16/1111:45 a.m. -
1 stop4h 35m
Mon 23/115:45 a.m. -
1 stop5h 00m
Deal found 18/10C$ 312
Sat 14/111:45 p.m. -
Nonstop1h 30m
Tue 17/118:50 a.m. -
Nonstop1h 30m
Deal found 17/10C$ 190
Fri 29/16:30 a.m. -
Nonstop1h 20m
Sun 31/111:00 a.m. -
Nonstop1h 30m
Deal found 16/10C$ 199
Fri 18/126:30 a.m. -
Nonstop1h 20m
Sat 19/128:40 p.m. -
Nonstop1h 20m
Deal found 15/10C$ 228
Fri 13/116:30 a.m. -
Nonstop1h 20m
Wed 18/118:40 p.m. -
Nonstop1h 20m
Deal found 17/10C$ 228
Sat 14/116:30 a.m. -
1 stop6h 10m
Wed 18/118:50 a.m. -
1 stop5h 00m
Deal found 17/10C$ 313
Fri 4/126:30 a.m. -
Nonstop1h 20m
Sun 6/128:40 p.m. -
Nonstop1h 20m
Deal found 16/10C$ 230
Thu 5/118:25 a.m. -
Nonstop1h 30m
Sat 7/113:10 p.m. -
Nonstop1h 25m
Deal found 17/10C$ 265
Thu 24/126:30 a.m. -
Nonstop1h 20m
Mon 28/128:40 p.m. -
Nonstop1h 20m
Deal found 16/10C$ 307
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 19 October 2026.
Wed 2/128:10 a.m. -
Nonstop1h 30m
Wed 9/123:10 p.m. -
Nonstop1h 25m
Deal found 18/10C$ 159
Tue 1/126:30 a.m. -
Nonstop1h 20m
Fri 4/123:00 p.m. -
Nonstop1h 25m
Deal found 16/10C$ 161
Sat 28/116:25 p.m. -
Nonstop1h 20m
Mon 30/118:40 p.m. -
Nonstop1h 20m
Deal found 19/10C$ 164
Sat 20/36:30 a.m. -
Nonstop1h 20m
Mon 22/34:00 p.m. -
Nonstop1h 25m
Deal found 19/10C$ 165
Thu 7/16:30 a.m. -
Nonstop1h 20m
Thu 7/15:55 p.m. -
Nonstop1h 20m
Deal found 19/10C$ 166
Fri 11/126:30 a.m. -
Nonstop1h 20m
Fri 11/123:50 p.m. -
Nonstop1h 25m
Deal found 18/10C$ 168
Fri 29/16:30 a.m. -
Nonstop1h 20m
Mon 1/28:45 a.m. -
Nonstop1h 30m
Deal found 16/10C$ 171
Mon 28/126:30 a.m. -
Nonstop1h 20m
Thu 31/128:40 p.m. -
Nonstop1h 20m
Deal found 15/10C$ 176
Tue 24/113:35 p.m. -
Nonstop1h 30m
Sat 28/118:40 p.m. -
Nonstop1h 20m
Deal found 15/10C$ 178
Last-minute flights from Heathrow to Dublin
Discover last-minute flight deals from Heathrow to Dublin. Data last updated 19 October 2026 and is based on user searches.
Sat 24/104:50 p.m. -
Nonstop1h 30m
Tue 27/107:45 p.m. -
Nonstop1h 20m
Deal found 19/10C$ 272
Sat 24/107:10 p.m. -
Nonstop1h 25m
Thu 29/106:35 a.m. -
Nonstop1h 30m
Deal found 16/10C$ 353
Sat 24/104:50 p.m. -
Nonstop1h 30m
Fri 30/103:30 p.m. -
Nonstop1h 20m
Deal found 16/10C$ 362
Sun 25/108:50 a.m. -
Nonstop1h 25m
Thu 29/106:35 a.m. -
Nonstop1h 30m
Deal found 16/10C$ 364
Sun 25/108:50 a.m. -
Nonstop1h 25m
Fri 30/103:30 p.m. -
Nonstop1h 20m
Deal found 16/10C$ 374
Mon 26/106:30 a.m. -
Nonstop1h 20m
Fri 13/118:35 p.m. -
Nonstop1h 20m
Deal found 17/10C$ 291
Mon 26/106:30 a.m. -
1 stop6h 10m
Thu 12/119:55 a.m. -
1 stop6h 40m
Deal found 17/10C$ 375
Wed 28/107:50 a.m. -
Nonstop1h 20m
Thu 29/106:35 a.m. -
Nonstop1h 30m
Deal found 16/10C$ 381
Thu 29/106:30 a.m. -
Nonstop1h 20m
Sat 31/108:50 a.m. -
Nonstop1h 30m
Deal found 15/10C$ 276
Thu 29/106:30 a.m. -
Nonstop1h 20m
Sun 1/117:25 p.m. -
Nonstop1h 20m
Deal found 15/10C$ 319
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 19 October 2026.
Tue 9/22:15 p.m. -
Nonstop1h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 18/10C$ 89
Fri 13/115:45 p.m. -
Nonstop1h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 18/10C$ 92
Mon 2/118:45 p.m. -
Nonstop1h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/10C$ 96
Tue 1/127:45 p.m. -
Nonstop1h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 18/10C$ 97
Sun 15/117:50 a.m. -
Nonstop1h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 17/10C$ 99
Fri 6/118:45 p.m. -
Nonstop1h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 17/10C$ 100
Mon 8/28:45 p.m. -
Nonstop1h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 18/10C$ 106
Wed 30/126:30 a.m. -
Nonstop1h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 16/10C$ 107
Mon 8/21:25 p.m. -
Nonstop1h 30m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 16/10C$ 109
Thu 25/28:25 a.m. -
Nonstop1h 30m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 19/10C$ 111
Thu 18/26:30 a.m. -
Nonstop1h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 19/10C$ 113
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 19 October 2026.
Customize 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 19 October 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 round-trip
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Mon 8/2
1:25 p.m.-2:55 p.m.
Nonstop1h 30m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 110
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Thu 25/2
8:25 a.m.-9:55 a.m.
Nonstop1h 30m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 111
Quickest round-trip
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Thu 3/12
6:30 a.m.-7:50 a.m.
Nonstop1h 20m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 113
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Thu 18/2
6:30 a.m.-7:50 a.m.
Nonstop1h 20m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 113
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Fri 2/4
6:20 a.m.-7:45 a.m.
Nonstop1h 25m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 118
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Mon 23/11
8:25 a.m.-9:55 a.m.
Nonstop1h 30m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 123
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Thu 19/11
6:30 a.m.-7:50 a.m.
Nonstop1h 20m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 128
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Thu 12/11
6:30 a.m.-7:50 a.m.
Nonstop1h 20m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 142
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Sun 6/12
4:15 p.m.-5:45 p.m.
Nonstop1h 30m
Dublin
Wed 31/12
12:00 a.m.-12:00 a.m.
Nonstop0h 00m
C$ 173
LondonDublin
LHR London Heathrow - DUB Dublin
LHRDUB
London Heathrow
Fri 9/4
6:20 a.m.-7:45 a.m.
Nonstop1h 25m
Dublin
Fri 23/4
8:10 p.m.-9:25 p.m.
Nonstop1h 15m
C$ 179
Flights are sorted by cheapest round-trip flights first.
Deals found on 15/10
Showing 1-10 of 20 resultsSorted by cheapest first
1
2
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 round-trip 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?
The price you pay for your flight from London Heathrow Airport to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 C$ 206). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of C$ 286). 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 19 October 2026.
When flying from London Heathrow Airport to Dublin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 77% versus a flight in the evening.
How much does it cost to fly round-trip 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 C$ 189 and C$ 293 in December.The cheapest round-trip price found within the last 5 days was C$ 159 on British Airways (2 Dec-9 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 19 October 2026.
The most flights from LHR to DUB are scheduled on a Friday (72 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (51 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 106 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 has had the lowest number of delays on this route, with just 14% 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 19 October 2026.
Check out reviews from past customers who have flown with Aer Lingus and British 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?
For a flight from London Heathrow to Dublin, you will be flying into Dublin. Dublin (DUB) is just 9.2 km from the centre of the city. Dublin is the only Dublin airport and it handles 59 inbound flights from London Heathrow per day. 2 airlines have flights to Dublin from London Heathrow on a regular basis.
How long is the flight from London Heathrow Airport to Dublin?
For as low as C$ 179, British Airways can have you in Dublin from London Heathrow Airport in 1h 25m. The distance between London Heathrow Airport and Dublin is about 449 km. All flights are typically direct.
What are the cheapest airlines flying from London Heathrow Airport to Dublin round-trip?
Flying on British Airways is currently your cheapest option to Dublin, with prices starting at C$ 149. Another option worth looking into is Aer Lingus, starting at C$ 233 round trip. British Airways is priced at 40% lower than the current average price of a flight leaving 3 months from now.
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 (86%), Qatar Airways (79%), Aer Lingus( 78%).
What are the cheapest flights from London Heathrow Airport to Dublin?
Looking at all options, your cheapest flight can be booked for C$ 84. While the most popular route (London Heathrow - Dublin) can be booked for C$ 535 on average, our data indicates C$ 432 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 C$ 206). Flying from London Heathrow Airport to Dublin in December is currently the most expensive (average of C$ 286). 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.
Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 19 October 2026.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 19 October 2026.
Discover the top 2 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 19 October 2026.
Find the best flight deals on Cheapflights, where travelers 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 goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Dublin. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Dublin?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Dublin.
Can Cheapflights find flights from Heathrow to Dublin with no change fees?
Yes, we can. To see specific flights from Heathrow to Dublin with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Heathrow to Dublin become cheaper?
Yes, Cheapflights offers price alerts on Heathrow to Dublin flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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