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Cheap flights from Dublin to London Heathrow Airport from C$ 54

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 24/7. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LHR
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from Dublin to London Heathrow are usually found in January or September, booked 48 days in advance, depart on a Tuesday or Thursday and return on a Saturday

Cheap 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 29 April 2025.

Round-trip from

C$ 136

One-way from

C$ 54

Popular in

November

Cheapest in

January

Average price

C$ 223

Good round-trip deal

C$ 231 or less

Good one-way deal

C$ 101 or less
British Airways
  • British Airways
  • 23/9-27/9
  • Nonstop
  • 3h 00m total
  • Dublin to London
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British Airways
  • British Airways
  • 24/7
  • Nonstop
  • 1h 35m total
  • Dublin to London
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Highest demand for flights based on searches. 6% potential increase in price (C$ 21 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Dublin to London Heathrow.
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Price to beat on a one-way flight from Dublin to London Heathrow.
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Find flight deals from Dublin to Heathrow

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 29 April 2025.

Tue 23/910:25 a.m.DUB - LHR
Nonstop1h 35mBritish Airways
Sat 27/96:15 a.m.LHR - DUB
Nonstop1h 25mBritish Airways
Deal found 27/4C$ 134
Sun 24/87:00 p.m.DUB - LHR
Nonstop1h 20mMultiple Airlines
Sat 30/86:15 a.m.LHR - DUB
Nonstop1h 25mMultiple Airlines
Deal found 27/4C$ 236
Tue 17/611:15 a.m.DUB - LHR
Nonstop1h 25mAer Lingus
Fri 20/68:10 p.m.LHR - DUB
Nonstop1h 20mAer Lingus
Deal found 27/4C$ 243
Fri 6/611:45 a.m.DUB - LHR
1 stop8h 10mScandinavian Airlines
Tue 10/66:40 a.m.LHR - DUB
1 stop11h 35mScandinavian Airlines
Deal found 28/4C$ 273
Thu 5/68:20 a.m.DUB - LHR
1 stop5h 55mVueling
Wed 25/63:05 p.m.LHR - DUB
1 stop16h 30mVueling
Deal found 28/4C$ 281
Wed 11/68:55 a.m.DUB - LHR
1 stop4h 55mKLM
Sat 21/66:30 a.m.LHR - DUB
1 stop3h 55mKLM
Deal found 28/4C$ 301
Thu 1/56:40 p.m.DUB - LHR
1 stop13h 15mSWISS
Mon 30/66:40 p.m.LHR - DUB
1 stop23h 10mSWISS
Deal found 27/4C$ 366

Cheapflights Fare Finder

Customize 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 629,999 searches. Data last updated 29 April 2025.
Use the filters below to find and compare flights from Dublin to London Heathrow Airport that are best for you.

Fly from

Dublin

Fly to

Heathrow

Route

Depart

Return

Price

DublinLondon

DUB - LHR

DUBLHR

Dublin

Tue 23/9

10:25 a.m.-12:00 p.m.

Nonstop1h 35m

London Heathrow

Sat 27/9

6:15 a.m.-7:40 a.m.

Nonstop1h 25m

C$ 136

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 2/6

6:00 p.m.-7:25 p.m.

Nonstop1h 25m

London Heathrow

Mon 9/6

9:10 p.m.-10:30 p.m.

Nonstop1h 20m

C$ 213

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 6/6

11:45 a.m.-7:55 p.m.

1 stop8h 10m

London Heathrow

Wed 11/6

6:40 a.m.-11:50 a.m.

1 stop5h 10m

C$ 273

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 5/6

8:20 a.m.-2:15 p.m.

1 stop5h 55m

London Heathrow

Wed 25/6

3:05 p.m.-7:35 a.m.

1 stop16h 30m

C$ 281

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 11/6

8:55 a.m.-1:50 p.m.

1 stop4h 55m

London Heathrow

Sat 21/6

6:30 a.m.-10:25 a.m.

1 stop3h 55m

C$ 301

DublinLondon

DUB - LHR

DUBLHR

Dublin

Mon 12/5

6:00 a.m.-1:45 p.m.

1 stop7h 45m

London Heathrow

Mon 19/5

6:30 a.m.-10:25 a.m.

1 stop3h 55m

C$ 326

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 12/6

6:40 p.m.-7:55 a.m.

1 stop13h 15m

London Heathrow

Thu 19/6

8:05 p.m.-5:50 p.m.

1 stop21h 45m

C$ 364

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 9/7

12:45 p.m.-6:50 p.m.

1 stop6h 05m

London Heathrow

Thu 10/7

8:05 a.m.-2:15 p.m.

1 stop6h 10m

C$ 410

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 11/9

6:05 a.m.-9:40 p.m.

2 stops15h 35m

London Heathrow

Mon 15/9

6:00 a.m.-10:15 p.m.

2 stops16h 15m

C$ 455

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 24/7

10:55 a.m.-12:30 p.m.

Nonstop1h 35m

C$ 58

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 21 results
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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.
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 Dublin to London Heathrow Airport

How far ahead should I book a flight from Dublin to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Dublin to Heathrow. Price data was last updated on 25 April 2025.

The price you pay for your flight from Dublin to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 48 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 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 C$ 560). Flying from Dublin to London Heathrow Airport in July is currently the most expensive (average of C$ 870). 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 29 April 2025.

A simple way to save on the total cost of your ticket is to fly from Dublin to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 81% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Dublin to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Dublin to Heathrow. Price data was last updated on 30 March 2025.

Travelers seeking maximum savings on their Dublin to London Heathrow Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 29 April 2025.

The most flights from DUB to LHR are scheduled on a Monday (79 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (61 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 29 April 2025.
To help decide which airline to fly from Dublin to London, see what other customers have to say about Aegean Airlines, KLM and LOT. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Comfort

7.8

Food

7.3

Overall

8.1

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very good
739 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Comfort

7.8

Food

7.3

Overall

8.1

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,333 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Comfort

7.8

Food

7.3

Overall

8.1

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,069 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Comfort

7.8

Food

7.3

Overall

8.1

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Austrian Airlines
7.6
Good
780 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Comfort

7.8

Food

7.3

Overall

8.1

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
SWISS
7.5
Good
1,587 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Comfort

7.8

Food

7.3

Overall

8.1

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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?

    Most people fly from Dublin (DUB) if they book a flight from Dublin to London Heathrow. On average, Dublin has 68 outbound flights to London Heathrow per day from 2 airlines. Dublin is conveniently located just 9.2 km from Dublin’s city centre.

  • What are the cheapest airlines flying from Dublin to London Heathrow Airport round-trip?

    Our cheapest airline available from Dublin to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as C$ 136 on this airline. Additional options worth looking into are Aer Lingus and Scandinavian Airlines, starting at C$ 213 and C$ 273 round-trip. These flights start at 35% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Dublin to London Heathrow Airport one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as C$ 54. Users have also found prices from C$ 98 and C$ 115 on Aer Lingus and Scandinavian Airlines, respectively.

  • What are the most reliable airlines from Dublin to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Dublin, check out the most reliable airlines to get you to your destination on time: Aer Lingus (82%), Air Canada (82%), British Airways( 82%).

  • What are the cheapest flights from Dublin to London Heathrow Airport?

    Looking for the cheapest flight from Dublin to London Heathrow Airport? While on average our users pay C$ 918, our data indicates the cheapest price to be C$ 86. The most popular route (Dublin - London Heathrow), is priced around C$ 579.

  • Can I find deals for flights from Dublin to Heathrow that include hotel bookings?

    Yes. In addition to deals on Dublin to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Heathrow.

  • 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 C$ 560). Flying from Dublin to London Heathrow Airport in July is currently the most expensive (average of C$ 870). 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.

See more FAQs

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Brentford
Hounslow
Sutton
Slough
Milton Keynes
Romford
Watford
Luton
Bromley
Bedford
Southall

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dublin to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Gatwick flights

Top 2 airlines flying from Dublin to Heathrow

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 629,999 searches. Data last updated 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 106AverageC$ 212FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapestC$ 165AverageC$ 233FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Dublin to Heathrow?

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Why should you use Cheapflights to find cheap flight tickets from Dublin to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Dublin to Heathrow 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 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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