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Cheap flights from Dublin to London from £36

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 7/1. 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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Cheap return flights

British Airways Logo
13:10 - 14:35DUB-LHR
1h 25mdirect
British Airways Logo
06:30 - 07:55LHR-DUB
1h 25mdirect
£75British Airways
Find Deal
Wed, 7 Jan - Fri, 9 Jan
British Airways Logo
13:10 - 14:35DUB-LHR
1h 25mdirect
British Airways Logo
06:30 - 07:55LHR-DUB
1h 25mdirect
£78British Airways
Find Deal
Thu, 8 Jan - Fri, 9 Jan
British Airways Logo
10:30 - 12:00DUB-LHR
1h 30mdirect
British Airways Logo
06:20 - 07:45LHR-DUB
1h 25mdirect
£79British Airways
Find Deal
Tue, 7 Oct - Thu, 9 Oct
British Airways Logo
16:05 - 17:30DUB-LHR
1h 25mdirect
British Airways Logo
13:25 - 15:00LHR-DUB
1h 35mdirect
£79British Airways
Find Deal
Sat, 29 Nov - Sun, 30 Nov
British Airways Logo
10:25 - 12:00DUB-LHR
1h 35mdirect
British Airways Logo
18:05 - 19:30LHR-DUB
1h 25mdirect
£80British Airways
Find Deal
Tue, 23 Sep - Wed, 24 Sep
British Airways Logo
10:25 - 12:00DUB-LHR
1h 35mdirect
British Airways Logo
16:50 - 18:20LHR-DUB
1h 30mdirect
£81British Airways
Find Deal
Tue, 23 Sep - Tue, 23 Sep
Aer Lingus Logo
19:00 - 20:20DUB-LHR
1h 20mdirect
Aer Lingus Logo
07:40 - 09:00LHR-DUB
1h 20mdirect
£88Aer Lingus
Find Deal
Wed, 27 Aug - Wed, 3 Sep
Logo
19:00 - 20:20DUB-LHR
1h 20mdirect
Logo
06:15 - 07:40LHR-DUB
1h 25mdirect
£97
Find Deal
Wed, 27 Aug - Wed, 3 Sep
Aer Lingus Logo
07:30 - 09:05DUB-LHR
1h 35mdirect
Aer Lingus Logo
08:50 - 10:15LHR-DUB
1h 25mdirect
£108Aer Lingus
Find Deal
Thu, 28 Aug - Sun, 31 Aug
Aer Lingus Logo
07:30 - 09:05DUB-LHR
1h 35mdirect
Aer Lingus Logo
22:00 - 23:10LHR-DUB
1h 10mdirect
£110Aer Lingus
Find Deal
Thu, 28 Aug - Sun, 31 Aug

British Airways flights from Dublin to London Heathrow Airport

Our best British Airways deals on Dublin to London Heathrow Airport flight tickets
British Airways
7 Jan
DUB13:10Dublin
1h 25m
LHR14:35London Heathrow
9 Jan
LHR06:30London Heathrow
1h 25m
DUB07:55Dublin
£75
Find similar
British Airways
8 Jan
DUB13:10Dublin
1h 25m
LHR14:35London Heathrow
9 Jan
LHR06:30London Heathrow
1h 25m
DUB07:55Dublin
£78
Find similar
British Airways
7 Oct
DUB10:30Dublin
1h 30m
LHR12:00London Heathrow
9 Oct
LHR06:20London Heathrow
1h 25m
DUB07:45Dublin
£79
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
27 Aug
DUB19:00Dublin
1h 20m
LHR20:20London Heathrow
3 Sept
LHR07:40London Heathrow
1h 20m
DUB09:00Dublin
£88
Find similar
Aer Lingus
28 Aug
DUB07:30Dublin
1h 35m
LHR09:05London Heathrow
31 Aug
LHR08:50London Heathrow
1h 25m
DUB10:15Dublin
£108
Find similar
Aer Lingus
28 Aug
DUB07:30Dublin
1h 35m
LHR09:05London Heathrow
31 Aug
LHR22:00London Heathrow
1h 10m
DUB23:10Dublin
£110
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 279,928 searches. Data last updated 1 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

Wed 7/1

13:10-14:35

Nonstop1h 25m

London Heathrow

Fri 9/1

06:30-07:55

Nonstop1h 25m

£75

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 8/1

13:10-14:35

Nonstop1h 25m

London Heathrow

Fri 9/1

06:30-07:55

Nonstop1h 25m

£78

DublinLondon

DUB - LHR

DUBLHR

Dublin

Tue 7/10

10:30-12:00

Nonstop1h 30m

London Heathrow

Thu 9/10

06:20-07:45

Nonstop1h 25m

£79

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 29/11

16:05-17:30

Nonstop1h 25m

London Heathrow

Sun 30/11

13:25-15:00

Nonstop1h 35m

£79

DublinLondon

DUB - LHR

DUBLHR

Dublin

Tue 23/9

10:25-12:00

Nonstop1h 35m

London Heathrow

Wed 24/9

18:05-19:30

Nonstop1h 25m

£80

DublinLondon

DUB - LHR

DUBLHR

Dublin

Tue 23/9

10:25-12:00

Nonstop1h 35m

London Heathrow

Tue 23/9

16:50-18:20

Nonstop1h 30m

£81

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 27/8

19:00-20:20

Nonstop1h 20m

London Heathrow

Wed 3/9

07:40-09:00

Nonstop1h 20m

£88

DublinLondon

DUB - LHR

DUBLHR

Dublin

Wed 27/8

19:00-20:20

Nonstop1h 20m

London Heathrow

Wed 3/9

06:15-07:40

Nonstop1h 25m

£97

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 28/8

07:30-09:05

Nonstop1h 35m

London Heathrow

Sun 31/8

08:50-10:15

Nonstop1h 25m

£108

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 28/8

07:30-09:05

Nonstop1h 35m

London Heathrow

Sun 31/8

22:00-23:10

Nonstop1h 10m

£110

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

In general, January is the cheapest month to fly from Dublin to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £97. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from Dublin averaging around £102.

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

On average, the least expensive day to fly to London Heathrow Airport from Dublin is on a Friday. momondo users have found tickets for Friday departures for as low as £461. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £560.

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 £207. 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 £738 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 £119 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 £80 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 95% 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

£36

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 £36. The best return flight deal from Dublin to London Heathrow Airport found on momondo in the last 72 hours is £75.
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?

    London Heathrow is 276.5 mi away from Dublin. 1h 20m is a normal flight duration for this route.

  • 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 refresh daily.

  • 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 for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport to London Heathrow Airport.

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

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • 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 £58Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
Aer LingusPriceFrom £95Free CancellationRating
7.1
1,192 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From Dublin to London Heathrow Airport

    Aer Lingus operates around 88 flights from Dublin to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £186, but momondo users have found Aer Lingus deals from Dublin to London Heathrow Airport from as low as £125 round-trip. Aer Lingus has been scored 7.1/10 in 1,192 reviews.

  • British Airways Flights From Dublin to London Heathrow Airport

    £77 is the best British Airways flight deal from Dublin to London Heathrow Airport found on momondo over the last 72 hours. The average British Airways ticket price found was closer to £133, however, with flight time and availability significantly affecting the price. British Airways (6.6/10 from 7,222 user reviews) flies into London Heathrow Airport from Dublin 93 times in an average week so prices can vary.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Slough
Northampton
Southend-on-Sea
Maidstone
Swindon
Canterbury
Gatwick
Stratford-upon-Avon
Ipswich
Ilford
Dartford
Guildford
Colchester
Worthing
Hounslow
Swanage
Salisbury

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 provides multiple filters to help you find the best flight to London from Dublin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Dublin and alert you when they change.

An easier way to manage your London Heathrow Airport trip

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