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Cheap flights from Dublin to London from £18

DUB — LON
29 Sep — 6 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to London are usually found in January or August, booked 41 days in advance, depart on a Friday or Wednesday and return on a Saturday

Cheap flight deals from Dublin to London

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to London

Fri 18/922:10 -
Nonstop1h 15m
Wed 18/1107:45 -
Nonstop1h 20m
Deal found 29/8£38
Fri 4/922:00 -
Nonstop1h 20m
Sun 6/906:35 -
Nonstop1h 20m
Deal found 28/8£38
Thu 10/907:50 -
Nonstop1h 30m
Thu 10/921:30 -
Nonstop1h 25m
Deal found 27/8£38
Fri 11/922:10 -
Nonstop1h 15m
Sun 13/909:00 -
Nonstop1h 20m
Deal found 28/8£38
Thu 17/912:40 -
Nonstop1h 30m
Mon 21/921:30 -
Nonstop1h 25m
Deal found 25/8£38
Thu 10/907:45 -
Nonstop1h 15m
Sun 13/909:00 -
Nonstop1h 20m
Deal found 28/8£39
Fri 23/1022:00 -
Nonstop1h 20m
Mon 26/1006:35 -
Nonstop1h 20m
Deal found 26/8£39
Fri 11/906:50 -
Nonstop1h 30m
Sat 12/912:05 -
Nonstop1h 25m
Deal found 28/8£39
Sat 5/923:15 -
Nonstop1h 15m
Sun 6/909:00 -
Nonstop1h 20m
Deal found 28/8£40
Wed 2/922:00 -
Nonstop1h 20m
Wed 9/908:30 -
Nonstop1h 20m
Deal found 28/8£40
Thu 3/907:50 -
Nonstop1h 30m
Mon 7/918:50 -
Nonstop1h 25m
Deal found 25/8£40
Fri 23/1021:05 -
Nonstop1h 20m
Sun 25/1012:25 -
Nonstop1h 20m
Deal found 28/8£41

Find flight deals from Dublin to London

Round-trip from

£38

One-way from

£18

Popular in

June

Cheapest in

January

Average price

£66

Good round-trip deal

£43 or less

Good one-way deal

£21 or less
Ryanair
  • Ryanair
  • 18/9-18/11
  • Nonstop
  • 2h 35m total
  • Dublin to London
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Ryanair
  • Ryanair
  • 13/9
  • Nonstop
  • 1h 15m total
  • Dublin to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£7 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from Dublin to London (LON).
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Price to beat on a one-way flight from Dublin to London (LON).
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Cheapflights Fare Finder

 
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

Cheapest return flight
Fastest return journey

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Fri 23/10

08:15-09:30

Nonstop1h 15m

London Luton

Mon 26/10

06:10-07:30

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Fri 18/9

22:10-23:25

Nonstop1h 15m

London Luton

Thu 19/11

18:05-19:25

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Fri 11/9

22:10-23:25

Nonstop1h 15m

London Luton

Sun 13/9

09:00-10:20

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Sat 26/9

16:10-17:25

Nonstop1h 15m

London Luton

Sun 27/9

09:00-10:20

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Fri 25/9

22:10-23:25

Nonstop1h 15m

London Luton

Sun 27/9

11:00-12:20

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Fri 11/9

22:10-23:25

Nonstop1h 15m

London Luton

Mon 14/9

08:15-09:35

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - STN London Stansted

DUBSTN

Dublin

Thu 10/9

08:30-09:50

Nonstop1h 20m

London Stansted

Thu 10/9

18:00-19:20

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Fri 16/10

22:10-23:25

Nonstop1h 15m

London Luton

Mon 19/10

08:15-09:35

Nonstop1h 20m

£39

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Thu 10/9

07:45-09:00

Nonstop1h 15m

London Luton

Sun 13/9

09:00-10:20

Nonstop1h 20m

£39

DublinLondon

DUB Dublin - LTN London Luton

DUBLTN

Dublin

Sat 3/10

23:15-00:30

Nonstop1h 15m

London Luton

Sun 4/10

09:00-10:20

Nonstop1h 20m

£39

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Dublin to London

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 £80). Flying from Dublin to London in June is currently the most expensive (average of £117). 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?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 55% on flights from Dublin to London by exploring options for tickets in the evening.

Weekly flight availability from Dublin to London

The most flights from DUB to LON are scheduled on a Saturday (93 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (55 on average).

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

Airfare is below average for this route at the moment.
Dublin to London flights typically cost between £43 and £128 in September.
The cheapest return price found within the last 5 days was £38 on Ryanair (18 Sept–18 Nov).

How often are flights from Dublin to London delayed?

About 16% of weekly flights between Dublin and London have experienced delays in the past year, with the average delay time being 102 minutes.

What is the most punctual flight time for Dublin to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Dublin to London flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 14% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Dublin to London, you should look to book at least 70 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 day to fly from Dublin to London?

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

Reviews of airlines servicing London

Read reviews from past customers who have flown with Aer Lingus,Ryanair, andBritish Airways 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.
Aer Lingus
7.3
Good
1,732 reviews
Check prices

Overall

7.3

Food

6.7

Boarding

7.5

Comfort

7.2

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2026

DUB - BCN

Would have been nice to have a plane that was equipped with a screen to watch a movie enroute to Barcelona, but all good. Flight and crew was excellent. Much appreciated the updates from captain and Kayak about the flight delay due the weather. It’s nice to be kept informed. Will Aer Lingus for future flights, and definitely through Kayak
Aer Lingus
7.3
Good
1,732 reviews
Aer Lingus
7.3
Good
1,732 reviews
Check prices

Overall

7.3

Food

6.7

Boarding

7.5

Comfort

7.2

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2026

DUB - BCN

Would have been nice to have a plane that was equipped with a screen to watch a movie enroute to Barcelona, but all good. Flight and crew was excellent. Much appreciated the updates from captain and Kayak about the flight delay due the weather. It’s nice to be kept informed. Will Aer Lingus for future flights, and definitely through Kayak
Ryanair
6.9
Okay
5,485 reviews
Aer Lingus
7.3
Good
1,732 reviews
Check prices

Overall

7.3

Food

6.7

Boarding

7.5

Comfort

7.2

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2026

DUB - BCN

Would have been nice to have a plane that was equipped with a screen to watch a movie enroute to Barcelona, but all good. Flight and crew was excellent. Much appreciated the updates from captain and Kayak about the flight delay due the weather. It’s nice to be kept informed. Will Aer Lingus for future flights, and definitely through Kayak
British Airways
6.7
Okay
8,195 reviews
Aer Lingus
7.3
Good
1,732 reviews
Check prices

Overall

7.3

Food

6.7

Boarding

7.5

Comfort

7.2

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2026

DUB - BCN

Would have been nice to have a plane that was equipped with a screen to watch a movie enroute to Barcelona, but all good. Flight and crew was excellent. Much appreciated the updates from captain and Kayak about the flight delay due the weather. It’s nice to be kept informed. Will Aer Lingus for future flights, and definitely through Kayak

Related info for your journey

  • 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 67 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.

  • How long is the flight from Dublin to London?

    Departing from Dublin to London will take you 1h 15m. The distance from Dublin to London is about 269 mi. Most flights are nonstop.

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

    Cheapflights users have booked flights from Dublin to London round-trip from £30. Other airlines that can offer you cheap pricing are British Airways, from £73, and Aer Lingus, from £96. These flights start at 62% 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 (£13), Ryanair (£18), and British Airways (£40).

  • 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 Gatwick or Dublin - London Stansted 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 (79%), Aer Lingus (72%), British Airways( 71%).

  • What are the cheapest flights from Dublin to London?

    Looking at all options, your cheapest flight can be booked for £48. While the most popular route (Dublin - London Heathrow) can be booked for £81 on average, our data indicates £1,464 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 £80). Flying from Dublin to London in June is currently the most expensive (average of £117). 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?

Book flights to London if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Eastbourne
Brentford
Barnet
Southall
Southend-on-Sea
Enfield
Kingston upon Thames
Watford
Dover
Ipswich

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Dublin to London

AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£30Average£75FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£73Average£142FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£96Average£146FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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.

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