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Cheap flights from Dublin to London from £21

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 7/9. 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

Ryanair Logo
08:20 - 09:30DUB-LTN
1h 10mdirect
Ryanair Logo
21:55 - 23:10LTN-DUB
1h 15mdirect
£43Ryanair
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Sun, 7 Sep - Mon, 15 Sep
Ryanair Logo
14:45 - 16:05DUB-STN
1h 20mdirect
Ryanair Logo
17:30 - 18:50STN-DUB
1h 20mdirect
£43Ryanair
Find Deal
Tue, 23 Sep - Sat, 27 Sep
Ryanair Logo
17:05 - 18:35DUB-LGW
1h 30mdirect
Ryanair Logo
21:35 - 23:00LGW-DUB
1h 25mdirect
£43Ryanair
Find Deal
Tue, 16 Sep - Tue, 23 Sep
Ryanair Logo
21:00 - 22:10DUB-LTN
1h 10mdirect
Ryanair Logo
13:00 - 14:15LTN-DUB
1h 15mdirect
£44Ryanair
Find Deal
Wed, 17 Sep - Wed, 24 Sep
British Airways Logo
13:10 - 14:35DUB-LHR
1h 25mdirect
British Airways Logo
17:10 - 18:40LHR-DUB
1h 30mdirect
£70British Airways
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Thu, 22 Jan - Sun, 25 Jan
British Airways Logo
13:10 - 14:35DUB-LHR
1h 25mdirect
British Airways Logo
10:45 - 12:15LHR-DUB
1h 30mdirect
£74British Airways
Find Deal
Sat, 17 Jan - Mon, 19 Jan
Logo
19:00 - 07:45DUB-LTN
12h 45m1 stop
Logo
09:55 - 11:10LTN-DUB
1h 15mdirect
£78
Find Deal
Fri, 3 Oct - Sun, 5 Oct
Logo
06:30 - 07:50DUB-STN
1h 20mdirect
Logo
20:00 - 21:20STN-DUB
1h 20mdirect
£78
Find Deal
Tue, 23 Dec - Sat, 27 Dec
Aer Lingus Logo
13:30 - 14:55DUB-LHR
1h 25mdirect
Aer Lingus Logo
20:10 - 21:30LHR-DUB
1h 20mdirect
£106Aer Lingus
Find Deal
Thu, 11 Sep - Mon, 15 Sep
Aer Lingus Logo
17:00 - 18:20DUB-LHR
1h 20mdirect
Aer Lingus Logo
20:10 - 21:30LHR-DUB
1h 20mdirect
£109Aer Lingus
Find Deal
Sat, 13 Sep - Mon, 15 Sep

British Airways flights from Dublin to London

Our best British Airways deals on Dublin to London flight tickets
British Airways
22 Jan
DUB13:10Dublin
1h 25m
LHR14:35London Heathrow
25 Jan
LHR17:10London Heathrow
1h 30m
DUB18:40Dublin
£70
Find similar
British Airways
17 Jan
DUB13:10Dublin
1h 25m
LHR14:35London Heathrow
19 Jan
LHR10:45London Heathrow
1h 30m
DUB12:15Dublin
£74
Find similar
British Airways
24 Jan
DUB10:55Dublin
1h 35m
LHR12:30London Heathrow
24 Jan
LHR15:30London Heathrow
1h 30m
DUB17:00Dublin
£75
Find similar

Aer Lingus flights from Dublin to London

Our best Aer Lingus deals on Dublin to London flight tickets
Aer Lingus
11 Sept
DUB13:30Dublin
1h 25m
LHR14:55London Heathrow
15 Sept
LHR20:10London Heathrow
1h 20m
DUB21:30Dublin
£106
Find similar
Aer Lingus
13 Sept
DUB17:00Dublin
1h 20m
LHR18:20London Heathrow
15 Sept
LHR20:10London Heathrow
1h 20m
DUB21:30Dublin
£109
Find similar
Aer Lingus
11 Sept
DUB12:00Dublin
1h 25m
LHR13:25London Heathrow
15 Sept
LHR21:10London Heathrow
1h 20m
DUB22:30Dublin
£110
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Dublin to London 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 19 August 2025.
Use the filters below to find and compare flights from Dublin to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinLondon

DUB - LTN

DUBLTN

Dublin

Sun 7/9

08:20-09:30

Nonstop1h 10m

London Luton

Mon 15/9

21:55-23:10

Nonstop1h 15m

£43

DublinLondon

DUB - STN

DUBSTN

Dublin

Tue 23/9

14:45-16:05

Nonstop1h 20m

London Stansted

Sat 27/9

17:30-18:50

Nonstop1h 20m

£43

DublinLondon

DUB - LGW

DUBLGW

Dublin

Tue 16/9

17:05-18:35

Nonstop1h 30m

London Gatwick

Tue 23/9

21:35-23:00

Nonstop1h 25m

£43

DublinLondon

DUB - LTN

DUBLTN

Dublin

Wed 17/9

21:00-22:10

Nonstop1h 10m

London Luton

Wed 24/9

13:00-14:15

Nonstop1h 15m

£44

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 22/1

13:10-14:35

Nonstop1h 25m

London Heathrow

Sun 25/1

17:10-18:40

Nonstop1h 30m

£70

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 17/1

13:10-14:35

Nonstop1h 25m

London Heathrow

Mon 19/1

10:45-12:15

Nonstop1h 30m

£74

DublinLondon

DUB - LTN

DUBLTN

Dublin

Fri 3/10

19:00-07:45

1 stop12h 45m

London Luton

Sun 5/10

09:55-11:10

Nonstop1h 15m

£78

DublinLondon

DUB - STN

DUBSTN

Dublin

Tue 23/12

06:30-07:50

Nonstop1h 20m

London Stansted

Sat 27/12

20:00-21:20

Nonstop1h 20m

£78

DublinLondon

DUB - LHR

DUBLHR

Dublin

Thu 11/9

13:30-14:55

Nonstop1h 25m

London Heathrow

Mon 15/9

20:10-21:30

Nonstop1h 20m

£106

DublinLondon

DUB - LHR

DUBLHR

Dublin

Sat 13/9

17:00-18:20

Nonstop1h 20m

London Heathrow

Mon 15/9

20:10-21:30

Nonstop1h 20m

£109

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London from

How to get the cheapest flight ticket from Dublin to London

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 typical price of a round-trip flight between Dublin and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Dublin is in January. Flight prices, which tend to average around £53, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Dublin averaging around £63.

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

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £170. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Dublin to London for around £442.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £114. Flights in the afternoon are often more expensive, with an average ticket price of £528.

What is the cheapest Dublin to London flight route?

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

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

You are more likely to see cheaper flights to London from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to London 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 from Dublin for as low as £79 on momondo.

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

There are 3 cabin classes available to choose from on Dublin to London 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 flight prices changed over time?

As of August 2025, prices for Dublin to London flights are approximately 17% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to London

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

Cheap Dublin to London (DUB to LON) flight deals and tips

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

Best price found

£21

Fastest flight time

1h 10m

Direct flights

Every day

Airports in London

3 airports
The best one-way flight to London from Dublin in the past 72 hours is £21. The best return flight deal from Dublin to London found on momondo in the last 72 hours is £43.
The fastest flight from Dublin to London takes 1h 10m
Direct flights go from Dublin to London every day.
There are 3 airports near London: London Luton (LTN), London Stansted (STN), London Gatwick (LGW)
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  • How far is Dublin to London by plane?

    London is 287.9 mi away from Dublin. 1h 10m is a normal flight duration for this route.

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

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

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

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

    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.

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

    The travel and health documents required for your trip to London 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 license, and a passport valid for six-months after you plan to arrive at London. 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?

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

Best airlines flying from Dublin to London

Compare and see reviews for airlines that fly from Dublin to London with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £28Free CancellationRating
6.8
5,153 reviews
Search Ryanair flights
British AirwaysPriceFrom £58Free CancellationRating
6.7
7,283 reviews
Search British Airways flights
Aer LingusPriceFrom £96Free CancellationRating
7.2
1,221 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From Dublin to London

    The lowest priced Aer Lingus flight from Dublin to London from the last 72 hours was £131. Generally, Aer Lingus has 107 flights on this route every week with an average price of £188. Aer Lingus is rated 7.2/10 by our users.

  • Ryanair Flights From Dublin to London

    Ryanair is also a popular choice for this route. Ryanair flight deals for Dublin to London start from as low as £38 round-trip, depending on your selected dates, with average Ryanair deals seen on momondo around £92. Ryanair operates 47 flights to London from Dublin in an average week. Users have rated it 6.8/10 across 5,153 reviews.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Maidstone
Slough
Gatwick
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Worthing
Dartford
Hounslow
Dover
Chelmsford
Hayes
Folkestone
Bedford

Why use momondo?

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

Finding the right flight to London from Dublin is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

All flight searches from Dublin to London on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Dublin to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Dublin to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport