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Cheap flights from Dublin to London from €37

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to London departing on 15/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Dublin to London (DUB-LHR)

Cheap return flights

Aer Lingus Logo
19:00 - 20:20DUB-LHR
1h 20mdirect
Aer Lingus Logo
14:20 - 15:45LHR-DUB
1h 25mdirect
€80Aer Lingus
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Sat, 11 Oct - Tue, 21 Oct
British Airways Logo
11:00 - 12:30DUB-LHR
1h 30mdirect
British Airways Logo
06:20 - 07:45LHR-DUB
1h 25mdirect
€85British Airways
Find Deal
Thu, 9 Oct - Mon, 13 Oct
British Airways Logo
10:20 - 11:55DUB-LHR
1h 35mdirect
British Airways Logo
12:50 - 14:20LHR-DUB
1h 30mdirect
€87British Airways
Find Deal
Wed, 5 Nov - Sat, 8 Nov
British Airways Logo
17:55 - 19:15DUB-LHR
1h 20mdirect
British Airways Logo
18:10 - 19:35LHR-DUB
1h 25mdirect
€88British Airways
Find Deal
Wed, 1 Oct - Tue, 7 Oct
British Airways Logo
15:00 - 16:25DUB-LHR
1h 25mdirect
British Airways Logo
16:10 - 17:40LHR-DUB
1h 30mdirect
€89British Airways
Find Deal
Fri, 14 Nov - Sun, 16 Nov
British Airways Logo
20:40 - 22:00DUB-LHR
1h 20mdirect
British Airways Logo
18:20 - 19:45LHR-DUB
1h 25mdirect
€90British Airways
Find Deal
Sat, 13 Dec - Sun, 14 Dec
British Airways Logo
20:35 - 21:55DUB-LHR
1h 20mdirect
British Airways Logo
08:25 - 09:50LHR-DUB
1h 25mdirect
€91British Airways
Find Deal
Fri, 28 Nov - Mon, 1 Dec
Aer Lingus Logo
18:00 - 19:25DUB-LHR
1h 25mdirect
Aer Lingus Logo
19:40 - 20:50LHR-DUB
1h 10mdirect
€118Aer Lingus
Find Deal
Sat, 13 Sep - Sat, 20 Sep
Logo
07:30 - 09:05DUB-LHR
1h 35mdirect
Logo
08:10 - 09:35LHR-DUB
1h 25mdirect
€121
Find Deal
Sun, 28 Sep - Sun, 5 Oct
Aer Lingus Logo
12:00 - 13:25DUB-LHR
1h 25mdirect
Aer Lingus Logo
15:50 - 17:15LHR-DUB
1h 25mdirect
€126Aer Lingus
Find Deal
Sun, 12 Oct - Sun, 19 Oct

British Airways flights from Dublin to London Heathrow Airport

Our best British Airways deals on Dublin to London Heathrow Airport flight tickets
British Airways
9 Oct
DUB11:00Dublin
1h 30m
LHR12:30London Heathrow
13 Oct
LHR06:20London Heathrow
1h 25m
DUB07:45Dublin
€85
Find similar
British Airways
5 Nov
DUB10:20Dublin
1h 35m
LHR11:55London Heathrow
8 Nov
LHR12:50London Heathrow
1h 30m
DUB14:20Dublin
€87
Find similar
British Airways
1 Oct
DUB17:55Dublin
1h 20m
LHR19:15London Heathrow
7 Oct
LHR18:10London Heathrow
1h 25m
DUB19:35Dublin
€88
Find similar

Aer Lingus flights from Dublin to London Heathrow Airport

Our best Aer Lingus deals on Dublin to London Heathrow Airport flight tickets
Aer Lingus
11 Oct
DUB19:00Dublin
1h 20m
LHR20:20London Heathrow
21 Oct
LHR14:20London Heathrow
1h 25m
DUB15:45Dublin
€80
Find similar
Aer Lingus
13 Sept
DUB18:00Dublin
1h 25m
LHR19:25London Heathrow
20 Sept
LHR19:40London Heathrow
1h 10m
DUB20:50Dublin
€118
Find similar
Aer Lingus
12 Oct
DUB12:00Dublin
1h 25m
LHR13:25London Heathrow
19 Oct
LHR15:50London Heathrow
1h 25m
DUB17:15Dublin
€126
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Dublin to London Heathrow Airport 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, momondo users made 13,528 searches. Data last updated 29 August 2025.
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

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 11/10

19:00-20:20

Nonstop1h 20m

London Heathrow

Tue 21/10

14:20-15:45

Nonstop1h 25m

€80

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 9/10

11:00-12:30

Nonstop1h 30m

London Heathrow

Mon 13/10

06:20-07:45

Nonstop1h 25m

€85

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 5/11

10:20-11:55

Nonstop1h 35m

London Heathrow

Sat 8/11

12:50-14:20

Nonstop1h 30m

€87

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 1/10

17:55-19:15

Nonstop1h 20m

London Heathrow

Tue 7/10

18:10-19:35

Nonstop1h 25m

€88

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 14/11

15:00-16:25

Nonstop1h 25m

London Heathrow

Sun 16/11

16:10-17:40

Nonstop1h 30m

€89

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 13/12

20:40-22:00

Nonstop1h 20m

London Heathrow

Sun 14/12

18:20-19:45

Nonstop1h 25m

€90

DublinLondon

DUB - LHR

DUBLHR

Dublin

Fri 28/11

20:35-21:55

Nonstop1h 20m

London Heathrow

Mon 1/12

08:25-09:50

Nonstop1h 25m

€91

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 13/9

18:00-19:25

Nonstop1h 25m

London Heathrow

Sat 20/9

19:40-20:50

Nonstop1h 10m

€118

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sun 28/9

07:30-09:05

Nonstop1h 35m

London Heathrow

Sun 5/10

08:10-09:35

Nonstop1h 25m

€121

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sun 12/10

12:00-13:25

Nonstop1h 25m

London Heathrow

Sun 19/10

15:50-17:15

Nonstop1h 25m

€126

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Dublin to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Heathrow Airport?

The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Dublin averaging around €120.

What is the cheapest day to depart on your flight to London Heathrow Airport?

The cheapest day to depart on your flight to London Heathrow Airport is on a Friday when prices can be found for as low as €495. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €671.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Dublin to London Heathrow Airport in the evening for as low as €171. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €763 on average. Flights to London Heathrow Airport from Dublin in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Dublin to London Heathrow flight route?

Fly from Dublin to London Heathrow for the best Dublin - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around €138 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Dublin for as low as €92 on momondo.

What cabin class options are available on Dublin to London Heathrow flights?

There are 3 cabin classes available to choose from on Dublin to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Dublin to London Heathrow Airport flight prices changed over time?

As of August 2025, prices for Dublin to London Heathrow Airport flights are approximately 109% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Dublin to London Heathrow Airport (DUB to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dublin to London Heathrow Airport

Best price found

€101

Fastest flight time

1h 20m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Dublin in the past 72 hours is €101. The best return flight deal from Dublin to London Heathrow Airport found on momondo in the last 72 hours is €191.
The fastest flight from Dublin to London Heathrow Airport takes 1h 20m
Direct flights go from Dublin to London Heathrow Airport every day.
Search flight deals

  • How far is Dublin to London Heathrow by plane?

    The straight-line distance from Dublin to London Heathrow is 445.0 km. By plane, this route typically takes 1h 20m.

  • When did momondo last update prices for flights from Dublin Airport to London Heathrow Airport?

    Prices for flights from Dublin Airport to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from Dublin Airport to London Heathrow Airport?

  • How old do you have to be to fly from Dublin Airport to London Heathrow Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dublin Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Dublin to London Heathrow Airport?

  • What is the most popular airline from Dublin to London Heathrow Airport?

Best airlines flying from Dublin to London Heathrow Airport

Compare and see reviews for airlines that fly from Dublin to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom €75Free CancellationRating
6.7
7,320 reviews
Search British Airways flights
Aer LingusPriceFrom €105Free CancellationRating
7.2
1,242 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From Dublin to London Heathrow Airport

    Aer Lingus flight deals from Dublin to London Heathrow Airport start from €123 round-trip. Over the 94 Aer Lingus flights for this route in a normal week, average airfare is usually €195 round-trip - but some users have found much cheaper deals with momondo.

  • British Airways Flights From Dublin to London Heathrow Airport

    Across 7,320 British Airways reviews on momondo, the average score is 6.7/10. British Airways flies from Dublin to London Heathrow Airport about 94 times each week, with ticket deals ranging from €88 to €144. Price data is based on momondo searches in the last 72 hours.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Southend-on-Sea
Watford
Gatwick
Surbiton
Northampton
Chichester
Croydon
Abingdon
Bishop's Stortford
Chelmsford
Milton Keynes
St. Albans
Woking
Sudbury
Dorking
Broadway
Dartford
Aylesbury
Maidstone
Eastbourne

Why use momondo?

Why should I use momondo to find a flight deal from Dublin to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Dublin to London. momondo saves you time and could save you money on your trip.

Can I find flights from Dublin to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Dublin with this policy.

How can momondo help me find flights from Dublin to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Dublin to London.

I’m not ready to book a flight from Dublin to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Dublin to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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