Cheap flights from Dublin to London Heathrow Airport from £30
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LHR
1 Oct — 8 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to London Heathrow are usually found in January or February, booked 63 days in advance, depart on a Friday or Wednesday and return on a Friday
Cheap flight deals from Dublin to Heathrow
Enter your travel dates to find the best prices.
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Best
Direct
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One-way
Cheapest flights from Dublin to Heathrow
Explore the most affordable flight options available from Dublin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 September 2026.
Tue 13/1012:30 -
Nonstop1h 25m
Tue 20/1013:25 -
Nonstop1h 25m
Deal found 28/8£75
Tue 15/1220:40 -
Nonstop1h 20m
Wed 23/1206:30 -
Nonstop1h 20m
Deal found 29/8£77
Mon 12/1020:30 -
Nonstop1h 15m
Mon 19/1006:20 -
Nonstop1h 25m
Deal found 28/8£78
Tue 6/1015:55 -
Nonstop1h 25m
Wed 14/1014:20 -
Nonstop1h 25m
Deal found 28/8£81
Tue 29/913:30 -
Nonstop1h 30m
Wed 30/914:20 -
Nonstop1h 25m
Deal found 30/8£81
Sat 31/1016:30 -
Nonstop1h 20m
Sat 31/1020:45 -
Nonstop1h 20m
Deal found 28/8£82
Wed 11/1120:40 -
Nonstop1h 20m
Sun 15/1108:25 -
Nonstop1h 30m
Deal found 31/8£83
Sat 19/1220:40 -
Nonstop1h 20m
Mon 28/1213:25 -
Nonstop1h 30m
Deal found 29/8£84
Tue 6/1020:25 -
Nonstop1h 15m
Wed 14/1018:05 -
Nonstop1h 25m
Deal found 31/8£84
Tue 27/1020:40 -
Nonstop1h 20m
Thu 29/1006:30 -
Nonstop1h 20m
Deal found 28/8£85
Best flights from Dublin to Heathrow
Discover carefully curated flight deals from Dublin to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 September 2026.
Sat 14/1120:40 -
Nonstop1h 20m
Sun 15/1108:25 -
Nonstop1h 30m
Deal found 27/8£86
Tue 27/1011:30 -
1 stop9h 50m
Wed 28/1006:40 -
1 stop5h 05m
Deal found 29/8£157
Fri 2/1011:10 -
1 stop6h 25m
Mon 5/1017:10 -
1 stop5h 15m
Deal found 27/8£177
Mon 19/1008:30 -
Nonstop1h 35m
Mon 19/1018:10 -
Nonstop1h 25m
Deal found 28/8£100
Sun 27/908:35 -
Nonstop1h 35m
Mon 28/906:20 -
Nonstop1h 25m
Deal found 28/8£101
Tue 6/1011:40 -
1 stop8h 15m
Wed 7/1006:40 -
1 stop11h 40m
Deal found 30/8£160
Thu 1/1005:55 -
1 stop4h 50m
Thu 8/1008:40 -
1 stop4h 00m
Deal found 27/8£177
Fri 2/1011:40 -
1 stop9h 40m
Mon 5/1006:40 -
1 stop12h 25m
Deal found 27/8£171
Thu 24/908:55 -
1 stop4h 55m
Thu 1/1008:40 -
1 stop4h 00m
Deal found 27/8£177
Sat 5/1219:05 -
1 stop14h 15m
Sun 6/1218:05 -
1 stop16h 40m
Deal found 28/8£175
Thu 24/911:10 -
1 stop6h 25m
Mon 28/914:45 -
1 stop7h 40m
Deal found 28/8£177
Tue 27/1011:30 -
1 stop9h 50m
Fri 30/1019:30 -
1 stop13h 55m
Deal found 29/8£177
Direct flights from Dublin to Heathrow
Explore direct flight options from Dublin to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 September 2026.
Tue 13/1012:30 -
Nonstop1h 25m
Tue 20/1013:25 -
Nonstop1h 25m
Deal found 28/8£75
Tue 1/1214:15 -
Nonstop1h 20m
Wed 9/1214:15 -
Nonstop1h 25m
Deal found 1/9£77
Mon 12/1020:30 -
Nonstop1h 15m
Mon 19/1006:20 -
Nonstop1h 25m
Deal found 28/8£78
Wed 7/1011:10 -
Nonstop1h 30m
Tue 20/1008:50 -
Nonstop1h 25m
Deal found 1/9£80
Tue 6/1015:55 -
Nonstop1h 25m
Wed 14/1014:20 -
Nonstop1h 25m
Deal found 28/8£81
Tue 29/913:30 -
Nonstop1h 30m
Wed 30/914:20 -
Nonstop1h 25m
Deal found 30/8£81
Wed 6/110:30 -
Nonstop1h 30m
Sat 9/118:25 -
Nonstop1h 20m
Deal found 28/8£82
Wed 11/1120:40 -
Nonstop1h 20m
Sun 15/1108:25 -
Nonstop1h 30m
Deal found 31/8£83
Sat 19/1220:40 -
Nonstop1h 20m
Mon 28/1213:25 -
Nonstop1h 30m
Deal found 29/8£84
Tue 6/1020:25 -
Nonstop1h 15m
Wed 14/1018:05 -
Nonstop1h 25m
Deal found 31/8£84
Tue 27/1020:40 -
Nonstop1h 20m
Thu 29/1006:30 -
Nonstop1h 20m
Deal found 28/8£85
Last-minute flights from Dublin to Heathrow
Discover last-minute flight deals from Dublin to Heathrow. Data last updated 1 September 2026 and is based on user searches.
Mon 7/915:15 -
Nonstop1h 30m
Fri 11/906:20 -
Nonstop1h 25m
Deal found 1/9£108
Mon 7/910:30 -
Nonstop1h 30m
Fri 2/1016:30 -
Nonstop1h 25m
Deal found 28/8£111
Tue 8/910:30 -
Nonstop1h 30m
Fri 11/906:20 -
Nonstop1h 25m
Deal found 1/9£98
Tue 8/908:35 -
Nonstop1h 35m
Fri 2/1016:30 -
Nonstop1h 25m
Deal found 28/8£103
Tue 8/908:35 -
Nonstop1h 35m
Sat 12/906:15 -
Nonstop1h 25m
Deal found 27/8£110
Wed 9/910:30 -
Nonstop1h 30m
Fri 18/916:30 -
Nonstop1h 25m
Deal found 29/8£114
Wed 9/910:30 -
Nonstop1h 30m
Thu 17/910:35 -
Nonstop1h 30m
Deal found 29/8£115
Fri 11/908:35 -
Nonstop1h 35m
Sat 12/906:15 -
Nonstop1h 25m
Deal found 28/8£109
Fri 11/920:10 -
Nonstop1h 15m
Thu 8/1011:30 -
Nonstop1h 25m
Deal found 1/9£117
One-way flights from Dublin to Heathrow
Search for one-way flight options from Dublin to Heathrow. Find affordable one-way fares based on user searches. Data last updated 1 September 2026.
Sat 14/1110:00 -
Nonstop1h 25m
Deal found 1/9£30
Sat 9/115:10 -
Nonstop1h 25m
Deal found 28/8£33
Thu 5/1119:45 -
Nonstop1h 20m
Deal found 28/8£34
Sun 27/1219:45 -
Nonstop1h 20m
Deal found 30/8£35
Mon 4/120:40 -
Nonstop1h 20m
Deal found 1/9£36
Tue 26/111:00 -
Nonstop1h 30m
Deal found 29/8£37
Mon 28/908:40 -
Nonstop1h 40m
Deal found 29/8£38
Tue 27/1019:45 -
Nonstop1h 20m
Deal found 28/8£38
Sat 3/1019:00 -
Nonstop1h 20m
Deal found 28/8£39
Tue 10/1120:40 -
Nonstop1h 20m
Deal found 28/8£40
Find flight deals from Dublin to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Heathrow (LHR). 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 1 September 2026.
Customise your flight search to find flights from Dublin to Heathrow 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 1 September 2026.
Use the filters below to find and compare flights from Dublin to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
Fastest return journey
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Sat 14/11
20:40-22:00
Nonstop1h 20m
London Heathrow
Sun 15/11
08:25-09:55
Nonstop1h 30m
£86
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Mon 19/10
08:30-10:05
Nonstop1h 35m
London Heathrow
Mon 19/10
18:10-19:35
Nonstop1h 25m
£100
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Sun 27/9
08:35-10:10
Nonstop1h 35m
London Heathrow
Mon 28/9
06:20-07:45
Nonstop1h 25m
£101
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Tue 27/10
11:30-21:20
1 stop9h 50m
London Heathrow
Wed 28/10
06:40-11:45
1 stop5h 05m
£157
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Tue 6/10
11:40-19:55
1 stop8h 15m
London Heathrow
Wed 7/10
06:40-18:20
1 stop11h 40m
£160
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Fri 2/10
11:40-21:20
1 stop9h 40m
London Heathrow
Mon 5/10
06:40-19:05
1 stop12h 25m
£171
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Sat 5/12
19:05-09:20
1 stop14h 15m
London Heathrow
Sun 6/12
18:05-10:45
1 stop16h 40m
£175
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Fri 2/10
11:10-17:35
1 stop6h 25m
London Heathrow
Mon 5/10
17:10-22:25
1 stop5h 15m
£177
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Thu 1/10
05:55-10:45
1 stop4h 50m
London Heathrow
Thu 8/10
08:40-12:40
1 stop4h 00m
£177
DublinLondon
DUB Dublin - LHR London Heathrow
DUBLHR
Dublin
Thu 24/9
08:55-13:50
1 stop4h 55m
London Heathrow
Thu 1/10
08:40-12:40
1 stop4h 00m
£177
Flights are sorted by cheapest return flights first.
Deals found on 29/8
Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Dublin to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Dublin with our price prediction graph.
DUB-LHR
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 Dublin to London Heathrow Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Dublin to London Heathrow Airport?
Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dublin to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Dublin to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of £100). Flying from Dublin to London Heathrow Airport in April is currently the most expensive (average of £139). 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 DUB to LHR?
Find hourly flight availability from Dublin to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 September 2026.
One of the essential ways to save on airfare from Dublin to London Heathrow Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 43% on airfare.
What is the cheapest day to fly from Dublin to London Heathrow Airport?
Use this chart to determine the cheapest time to fly return from Dublin to Heathrow. Price data was last updated on 29 August 2026.
Travellers seeking maximum savings on their Dublin to London Heathrow Airport flight should consider departing on Friday evenings 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 Dublin to London Heathrow Airport?
Airfare is below average for this route at the moment.
Dublin to London Heathrow Airport flights typically cost between £106 and £164 in October.The cheapest return price found within the last 5 days was £75 on Aer Lingus (13 Oct–20 Oct).
Weekly flight availability from Dublin to London Heathrow Airport
Explore weekly flight availability from Dublin to Heathrow. 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 1 September 2026.
The most flights from DUB to LHR are scheduled on a Monday (81 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (40 on average).
How often are flights from Dublin to London delayed?
About 15% of weekly flights between Dublin and London have experienced delays in the past year, with the average delay time being 97 minutes.
What is the most punctual flight time for Dublin to London flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night 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 Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Dublin to London flights?
Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 14% of flights being delayed.
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 1 September 2026.
Get a feel of what it's like to fly with Aer Lingus and British Airways from Dublin to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Would have been nice to have a plane that was equipped with a screen to watch a movie enroute to Barcelona, but all good. Flight and crew was excellent. Much appreciated the updates from captain and Kayak about the flight delay due the weather. It’s nice to be kept informed. Will Aer Lingus for future flights, and definitely through Kayak
Would have been nice to have a plane that was equipped with a screen to watch a movie enroute to Barcelona, but all good. Flight and crew was excellent. Much appreciated the updates from captain and Kayak about the flight delay due the weather. It’s nice to be kept informed. Will Aer Lingus for future flights, and definitely through Kayak
Would have been nice to have a plane that was equipped with a screen to watch a movie enroute to Barcelona, but all good. Flight and crew was excellent. Much appreciated the updates from captain and Kayak about the flight delay due the weather. It’s nice to be kept informed. Will Aer Lingus for future flights, and definitely through Kayak
Related info for your journey
Find useful and relevant information for your journey from Dublin to Heathrow. 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 from for flights from Dublin to London Heathrow?
Located just 5.7 mi from the city center, Dublin is the airport most travelers will use when flying to London Heathrow from Dublin. Booking flights from Dublin (DUB) to London Heathrow should be relatively easy as there are 55 daily outbound flights to London Heathrow from 2 different airlines.
How long is the flight from Dublin to London Heathrow Airport?
Airlines like British Airways and Scandinavian Airlines fly from Dublin to London Heathrow Airport in about 1h 20m. The time it takes to get you to your destination can typically vary by up to 8h 30m. Airlines will cover a distance of 279 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Dublin to London Heathrow Airport round-trip?
Flying on British Airways is currently your cheapest option to London Heathrow Airport, with prices starting at £73. Another option worth looking into is Aer Lingus, starting at £100 return. Users have found that British Airways is 41% cheaper than the other options available to this destination.
What are the most reliable airlines from Dublin to London Heathrow Airport?
The top 3 most reliable airlines when flying from Dublin to London Heathrow Airport are Air Canada (79%), Aer Lingus (72%) and British Airways (71%).
What are the cheapest flights from Dublin to London Heathrow Airport?
While on average a flight from Dublin to London Heathrow Airport is generally £1,238, our data shows the cheapest flight currently is £48. When looking at the most popular route, (Dublin - London Heathrow), you can expect to pay £81 for that flight.
Can I find deals for business class flights from Dublin to Heathrow?
Yes. Cheapflights offers flight deals from Dublin to Heathrow 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 Dublin to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of £100). Flying from Dublin to London Heathrow Airport in April is currently the most expensive (average of £139). 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 Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 1 September 2026.
Discover the top 2 airlines that operate flights from Dublin to Heathrow. 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 1 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 Dublin to Heathrow?
Cheapflights makes it easy to find Dublin to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Dublin to Heathrow?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Dublin.
Can Cheapflights find flights from Dublin to Heathrow with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Heathrow flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Dublin to Heathrow become cheaper?
Yes! Start tracking prices for Dublin to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.
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