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Cheap flights from Dublin to London Heathrow Airport from C$ 67

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 22/11. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LHR
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Dublin to London Heathrow are usually found in January or February, booked 73 days in advance, depart on a Wednesday or Friday and return on a Thursday

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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 28 October 2025.

Wed 10/128:50 a.m.DUB - LHR
Nonstop1h 35mBritish Airways
Thu 11/126:30 a.m.LHR - DUB
Nonstop1h 25mBritish Airways
Deal found 27/10C$ 152
Tue 2/128:50 a.m.DUB - LHR
Nonstop1h 35mBritish Airways
Thu 4/126:30 a.m.LHR - DUB
Nonstop1h 25mBritish Airways
Deal found 26/10C$ 154
Wed 3/121:10 p.m.DUB - LHR
Nonstop1h 25mBritish Airways
Thu 4/126:30 a.m.LHR - DUB
Nonstop1h 25mBritish Airways
Deal found 27/10C$ 155
Fri 5/128:35 p.m.DUB - LHR
Nonstop1h 20mBritish Airways
Mon 8/121:35 p.m.LHR - DUB
Nonstop1h 30mBritish Airways
Deal found 26/10C$ 159
Fri 28/118:35 p.m.DUB - LHR
Nonstop1h 20mBritish Airways
Sat 29/111:35 p.m.LHR - DUB
Nonstop1h 30mBritish Airways
Deal found 26/10C$ 164
Wed 12/1110:20 a.m.DUB - LHR
Nonstop1h 35mBritish Airways
Sat 15/111:35 p.m.LHR - DUB
Nonstop1h 30mBritish Airways
Deal found 26/10C$ 166
Tue 25/1110:55 a.m.DUB - LHR
Nonstop1h 35mBritish Airways
Tue 2/123:35 p.m.LHR - DUB
Nonstop1h 30mBritish Airways
Deal found 28/10C$ 168
Sat 22/115:55 p.m.DUB - LHR
Nonstop1h 20mBritish Airways
Sun 23/118:25 a.m.LHR - DUB
Nonstop1h 25mBritish Airways
Deal found 27/10C$ 169
Sat 22/115:55 p.m.DUB - LHR
Nonstop1h 20mBritish Airways
Mon 24/113:20 p.m.LHR - DUB
Nonstop1h 30mBritish Airways
Deal found 27/10C$ 172
Mon 17/1110:45 a.m.DUB - LHR
Nonstop1h 35mBritish Airways
Mon 17/113:20 p.m.LHR - DUB
Nonstop1h 30mBritish Airways
Deal found 27/10C$ 175
Thu 20/1110:30 a.m.DUB - LHR
Nonstop1h 35mBritish Airways
Sat 22/116:25 p.m.LHR - DUB
Nonstop1h 25mBritish Airways
Deal found 26/10C$ 176

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 28 October 2025.

Round-trip from

C$ 144

One-way from

C$ 67

Popular in

August

Cheapest in

January

Average price

C$ 234

Good round-trip deal

C$ 290 or less

Good one-way deal

C$ 1,013 or less
British Airways
  • British Airways
  • 17/1-19/1
  • Nonstop
  • 2h 45m total
  • Dublin to London
Search Deals
British Airways
  • British Airways
  • 22/11
  • Nonstop
  • 1h 20m total
  • Dublin to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Dublin to London Heathrow.
Search Deals
Price to beat on a one-way flight from Dublin to London Heathrow.
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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 28 October 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

Sat 28/2

1:10 p.m.-2:35 p.m.

Nonstop1h 25m

London Heathrow

Wed 4/3

12:50 p.m.-2:20 p.m.

Nonstop1h 30m

C$ 148

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 10/1

8:40 p.m.-10:00 p.m.

Nonstop1h 20m

London Heathrow

Tue 13/1

11:05 a.m.-12:35 p.m.

Nonstop1h 30m

C$ 154

DublinLondon

DUB - LHR

DUBLHR

Dublin

Tue 17/3

8:50 a.m.-10:25 a.m.

Nonstop1h 35m

London Heathrow

Thu 19/3

6:30 a.m.-7:55 a.m.

Nonstop1h 25m

C$ 154

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 3/12

1:10 p.m.-2:35 p.m.

Nonstop1h 25m

London Heathrow

Thu 4/12

6:30 a.m.-7:55 a.m.

Nonstop1h 25m

C$ 155

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 20/3

8:35 p.m.-9:55 p.m.

Nonstop1h 20m

London Heathrow

Tue 24/3

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

Nonstop1h 25m

C$ 155

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 6/12

3:10 p.m.-4:35 p.m.

Nonstop1h 25m

London Heathrow

Mon 8/12

10:45 a.m.-12:15 p.m.

Nonstop1h 30m

C$ 159

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 8/1

4:05 p.m.-5:30 p.m.

Nonstop1h 25m

London Heathrow

Fri 16/1

6:30 a.m.-7:55 a.m.

Nonstop1h 25m

C$ 165

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 9/1

3:00 p.m.-4:25 p.m.

Nonstop1h 25m

London Heathrow

Mon 19/1

6:30 a.m.-7:55 a.m.

Nonstop1h 25m

C$ 165

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 26/11

8:40 p.m.-10:00 p.m.

Nonstop1h 20m

London Heathrow

Wed 3/12

3:30 p.m.-5:00 p.m.

Nonstop1h 30m

C$ 166

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 21/11

8:35 p.m.-9:55 p.m.

Nonstop1h 20m

London Heathrow

Tue 25/11

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

Nonstop1h 25m

C$ 166

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Showing 1-10 of 20 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 24 October 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 66 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, February is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of C$ 110). Flying from Dublin to London Heathrow Airport in June is currently the most expensive (average of C$ 155). 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 28 October 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 69% 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 26 October 2025.

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

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 28 October 2025.
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.
Aer Lingus
7.2
Good
1,360 reviews
Check prices

Boarding

7.4

Crew

8.0

Overall

7.2

Comfort

7.1

Entertainment

6.9

Food

6.6

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
Aer Lingus
7.2
Good
1,360 reviews
Aer Lingus
7.2
Good
1,360 reviews
Check prices

Boarding

7.4

Crew

8.0

Overall

7.2

Comfort

7.1

Entertainment

6.9

Food

6.6

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
British Airways
6.7
Okay
7,481 reviews
Aer Lingus
7.2
Good
1,360 reviews
Check prices

Boarding

7.4

Crew

8.0

Overall

7.2

Comfort

7.1

Entertainment

6.9

Food

6.6

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.

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 44 outbound flights to London Heathrow per day from 2 airlines. Dublin is conveniently located just 9.2 km from Dublin’s city centre.

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

    Departing from Dublin to London Heathrow Airport will take you 1h 25m. The distance from Dublin to London Heathrow Airport is about 449 km. Most flights are nonstop.

  • 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$ 138 on this airline. An additional option worth looking into is Aer Lingus, starting at C$ 268. These flights start at 40% lower than the current average price 3 months from now.

  • 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: Air Canada (75%), British Airways (68%), Aer Lingus( 68%).

  • 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$ 1,212, our data indicates the cheapest price to be C$ 129. The most popular route (Dublin - London Heathrow), is priced around C$ 585.

  • 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, February is the cheapest month in which you can book a flight from Dublin to London Heathrow Airport (average of C$ 110). Flying from Dublin to London Heathrow Airport in June is currently the most expensive (average of C$ 155). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bedford
Luton
Stratford-upon-Avon
Southall
Gatwick

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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 138AverageC$ 180FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapestC$ 268AverageC$ 291FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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