Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Dublin to London from £21

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 26/7. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — LON
13 lug — 20 lug1
1 adult

Cheapflights Tip: The best prices from Dublin to London are usually found in January or November, booked 56 days in advance, depart on a Friday or Saturday and return on a Saturday

Cheap flight deals from Dublin to London

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to London (LON). 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 8 luglio 2025.

Round-trip from

£39

One-way from

£21

Popular in

June

Cheapest in

January

Average price

£91

Good round-trip deal

£29 or less

Good one-way deal

£32 or less
Ryanair
  • Ryanair
  • 12/9-14/9
  • Nonstop
  • 2h 25m total
  • Dublin to London
Search Deals
Ryanair
  • Ryanair
  • 26/7
  • Nonstop
  • 1h 10m total
  • Dublin to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£10 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Dublin to London (LON).
Search Deals
Price to beat on a one-way flight from Dublin to London (LON).
Search Deals

Find flight deals from Dublin to London

Cheapest flights from Dublin to London
Explore the most affordable flight options available from Dublin to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 luglio 2025.

ven 12/919:30DUB - LTN
Nonstop1h 10mRyanair
dom 14/909:55LTN - DUB
Nonstop1h 15mRyanair
Deal found 6/7£39
ven 24/1006:30DUB - STN
Nonstop1h 20mRyanair
dom 26/1006:30STN - DUB
Nonstop1h 20mRyanair
Deal found 7/7£39
mar 23/915:25DUB - LGW
Nonstop1h 30mRyanair
mar 23/921:35LGW - DUB
Nonstop1h 25mRyanair
Deal found 7/7£39
gio 7/819:35DUB - STN
Nonstop1h 20mMultiple Airlines
lun 11/822:00STN - DUB
Nonstop1h 20mMultiple Airlines
Deal found 7/7£43
gio 14/807:00DUB - LTN
Nonstop1h 10mMultiple Airlines
mer 20/809:05LTN - DUB
1 stop9h 00mMultiple Airlines
Deal found 7/7£70
gio 31/719:35DUB - STN
Nonstop1h 20mRyanair
gio 7/817:50STN - DUB
Nonstop1h 20mRyanair
Deal found 6/7£73
mer 13/810:50DUB - LHR
Nonstop1h 40mBritish Airways
mer 13/816:30LHR - DUB
Nonstop1h 25mBritish Airways
Deal found 7/7£75
sab 26/719:00DUB - LHR
Nonstop1h 20mMultiple Airlines
lun 11/806:20LHR - DUB
Nonstop1h 25mMultiple Airlines
Deal found 7/7£106
mer 10/1220:05DUB - LCY
Nonstop1h 25mBritish Airways
mar 16/1219:25LCY - DUB
Nonstop1h 20mBritish Airways
Deal found 6/7£112
gio 14/806:50DUB - SEN
1 stop9h 50mMultiple Airlines
mer 20/816:50SEN - DUB
1 stop5h 15mMultiple Airlines
Deal found 7/7£197

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 8 luglio 2025.
Use the filters below to find and compare flights from Dublin to London that are best for you.

Fly from

Dublin

Fly to

London

Route

Depart

Return

Price

DublinLondon

DUB - LTN

DUBLTN

Dublin

ven 12/9

19:30-20:40

Nonstop1h 10m

London Luton

dom 14/9

09:55-11:10

Nonstop1h 15m

£39

DublinLondon

DUB - STN

DUBSTN

Dublin

ven 24/10

06:30-07:50

Nonstop1h 20m

London Stansted

dom 26/10

06:30-07:50

Nonstop1h 20m

£39

DublinLondon

DUB - LGW

DUBLGW

Dublin

mar 23/9

15:25-16:55

Nonstop1h 30m

London Gatwick

mar 23/9

21:35-23:00

Nonstop1h 25m

£39

DublinLondon

DUB - STN

DUBSTN

Dublin

gio 7/8

19:35-20:55

Nonstop1h 20m

London Stansted

lun 11/8

22:00-23:20

Nonstop1h 20m

£43

DublinLondon

DUB - LTN

DUBLTN

Dublin

gio 14/8

07:00-08:10

Nonstop1h 10m

London Luton

mer 20/8

09:05-18:05

1 stop9h 00m

£70

DublinLondon

DUB - STN

DUBSTN

Dublin

gio 31/7

19:35-20:55

Nonstop1h 20m

London Stansted

gio 7/8

17:50-19:10

Nonstop1h 20m

£73

DublinLondon

DUB - LHR

DUBLHR

Dublin

mer 13/8

10:50-12:30

Nonstop1h 40m

London Heathrow

mer 13/8

16:30-17:55

Nonstop1h 25m

£75

DublinLondon

DUB - LHR

DUBLHR

Dublin

sab 26/7

19:00-20:20

Nonstop1h 20m

London Heathrow

lun 11/8

06:20-07:45

Nonstop1h 25m

£106

DublinLondon

DUB - LCY

DUBLCY

Dublin

mer 10/12

20:05-21:30

Nonstop1h 25m

London City

mar 16/12

19:25-20:45

Nonstop1h 20m

£112

DublinLondon

DUB - SEN

DUBSEN

Dublin

gio 14/8

06:50-16:40

1 stop9h 50m

London Southend

mer 20/8

16:50-22:05

1 stop5h 15m

£197

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 27 results
1
2
3

Best time to book a flight from Dublin to London

Have a flexible travel schedule? Discover the best time to fly to London from Dublin with our price prediction graph.
Estimated return 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

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

Use this chart to determine the optimal time to book a return flight from Dublin to London. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from Dublin to London, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Dublin to London?

Currently, January is the cheapest month in which you can book a flight from Dublin to London (average of £112). Flying from Dublin to London in August is currently the most expensive (average of £164). 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 LON?

Find hourly flight availability from Dublin to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 luglio 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 78% on flights from Dublin to London by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly return from Dublin to London. Price data was last updated on 6 July 2025.

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

Weekly flight availability from Dublin to London

Explore weekly flight availability from Dublin to London. 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 8 luglio 2025.

The most flights from DUB to LON are scheduled on a Monday (100 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 on average).

How much does it cost for a return flight from Dublin to London?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 8 luglio 2025.
Read reviews from past customers who have flown with KLM, Norwegian, andScandinavian Airlines from Dublin to London. 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.
KLM
7.8
Good
1,370 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,370 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Norwegian
7.8
Good
229 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Scandinavian Airlines
7.3
Good
1,413 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Vueling
7.1
Good
1,170 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Aer Lingus
7.1
Good
1,150 reviews
KLM
7.8
Good
1,370 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Dublin to London. 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?

    Dublin (DUB) is the airport you will fly out of if you book a flight from Dublin to London. You should not have trouble finding flights to London from Dublin; the airport handles an average of 68 outbound flights to London per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Dublin airport to London. It is only a 5.7 mi journey to Dublin (DUB) from Dublin’s city center.

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

    Cheapflights users have booked flights from Dublin to London round-trip from £39. Other airlines that can offer you cheap pricing are Ryanair, from £73, and British Airways, from £75. These flights start at 51% lower than the current average price 3 months from now.

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

    The cheapet airlines for a one-way flight from Dublin to London are Ryanair (£21), Ryanair (£40), and British Airways (£42).

  • What are the most popular routes from Dublin to London?

    When deciding which route to take from Dublin to London consider Dublin - London Heathrow, Dublin - London Southend or Dublin - London City as they are the most popular.

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

    Before booking your flight to London from Dublin, check out the most reliable airlines to get you to your destination on time: Air Canada (81%), British Airways (79%), Aer Lingus( 78%).

  • What are the cheapest flights from Dublin to London?

    Looking at all options, your cheapest flight can be booked for £52. While the most popular route (Dublin - London Heathrow) can be booked for £73 on average our data indicates £1,293 when flying from Dublin to London.

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

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

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

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

  • Can I find deals for business class flights from Dublin to London?

    Yes. Cheapflights offers flight deals from Dublin to London 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?

    Currently, January is the cheapest month in which you can book a flight from Dublin to London (average of £112). Flying from Dublin to London in August is currently the most expensive (average of £164). 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
Hounslow
Croydon
Milton Keynes
Deal
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Maidstone
Guildford
Chichester

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dublin to London

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Heathrow flights
Dublin to Southend flights
Dublin to Liverpool flights
Dublin to London City flights
Dublin to Birmingham flights
Dublin to Manchester flights
Dublin to Edinburgh flights
Dublin to Gatwick flights
Shannon to Heathrow flights
Dublin to Stansted flights
Dublin to Luton flights
Dublin to Leeds flights
Cork to London City flights
Cork to Heathrow flights
Cork to Gatwick flights
Cork to Luton flights
Cork to Edinburgh flights
Dublin to Newcastle upon Tyne flights
Shannon to Manchester flights
Dublin to Bristol flights
Cork to Liverpool flights
Cork to Bristol flights
Dublin to Southampton flights
Shannon to Luton flights
Knock to Birmingham flights
Dublin to Exeter flights
Cork to Birmingham flights
Knock to Heathrow flights
Cork to Manchester flights
Dublin to Norwich flights
Knock to Manchester flights
Cork to Stansted flights
Dublin to Newquay flights
Knock to Luton flights
Knock to Stansted flights
Shannon to Stansted flights
Shannon to Gatwick flights
Shannon to London City flights
Knock to Edinburgh flights
Shannon to Edinburgh flights
Knock to Gatwick flights
Cork to Southampton flights
Shannon to Birmingham flights
Shannon to Bristol flights
Milltown (Kerry) to Gatwick flights
Dublin to East Midlands flights
Dublin to Grimsby flights
Milltown (Kerry) to Stansted flights

Top 3 airlines flying from Dublin to London

Discover the top 3 airlines that operate flights from Dublin to London. 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 858,174 searches. Data last updated 8 luglio 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£28Average£65FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£57Average£123FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£86Average£135FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Dublin to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dublin to London.

Can Cheapflights find flights from Dublin to London with no change fees?

Need flexible booking options for your flight to London from Dublin? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dublin to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Dublin today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights