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Cheap flights from Ireland to London from £13

DUB — LON
22 Sep — 29 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to London

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to London

Fri 11/906:05 -
Nonstop1h 25m
Fri 11/918:30 -
Nonstop1h 25m
Deal found 18/8£37
Sat 5/923:15 -
Nonstop1h 15m
Sat 12/914:25 -
Nonstop1h 20m
Deal found 21/8£38
Fri 4/922:00 -
Nonstop1h 20m
Sun 6/906:35 -
Nonstop1h 20m
Deal found 19/8£38
Fri 11/906:50 -
Nonstop1h 30m
Sun 13/908:55 -
Nonstop1h 25m
Deal found 21/8£38
Fri 2/1020:20 -
Nonstop1h 25m
Fri 9/1018:30 -
Nonstop1h 25m
Deal found 18/8£39
Fri 11/922:10 -
Nonstop1h 15m
Sun 13/909:00 -
Nonstop1h 20m
Deal found 18/8£39
Fri 18/922:00 -
Nonstop1h 20m
Sat 19/913:15 -
Nonstop1h 20m
Deal found 19/8£39
Fri 4/920:20 -
Nonstop1h 25m
Sun 6/907:20 -
Nonstop1h 25m
Deal found 23/8£40
Sat 19/908:00 -
Nonstop1h 30m
Sat 26/910:15 -
Nonstop1h 30m
Deal found 22/8£40
Sat 5/923:15 -
Nonstop1h 15m
Sun 6/909:00 -
Nonstop1h 20m
Deal found 18/8£40
Sat 5/922:00 -
Nonstop1h 20m
Sun 6/906:35 -
Nonstop1h 20m
Deal found 18/8£40
Fri 30/1023:05 -
Nonstop1h 25m
Sun 1/1106:00 -
Nonstop1h 25m
Deal found 21/8£40

Find flight deals from Ireland to London

Round-trip from

£37

One-way from

£13

Popular in

June

Cheapest in

January

Average price

£65

Good round-trip deal

£41 or less

Good one-way deal

£21 or less
Ryanair
  • Ryanair
  • 30/10-1/11
  • Nonstop
  • 2h 50m total
  • Ireland to London
Search Deals
Ryanair
  • Ryanair
  • 23/9
  • Nonstop
  • 1h 25m total
  • Ireland to London
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£6 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 August 2026
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Price to beat on a round-trip flight from Ireland to London (LON).
Search Deals
Price to beat on a one-way flight from Ireland to London (LON).
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Ireland to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CorkLondon

ORK Cork - STN London Stansted

ORKSTN

Cork

Fri 30/10

23:05-00:30

Nonstop1h 25m

London Stansted

Sun 1/11

06:00-07:25

Nonstop1h 25m

£37

CorkLondon

ORK Cork - STN London Stansted

ORKSTN

Cork

Fri 11/9

06:05-07:30

Nonstop1h 25m

London Stansted

Fri 11/9

18:30-19:55

Nonstop1h 25m

£37

DublinLondon

DUB Dublin - STN London Stansted

DUBSTN

Dublin

Sun 6/9

06:30-07:50

Nonstop1h 20m

London Stansted

Mon 7/9

22:45-00:05

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - STN London Stansted

DUBSTN

Dublin

Sun 6/9

06:30-07:50

Nonstop1h 20m

London Stansted

Wed 9/9

22:45-00:05

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - STN London Stansted

DUBSTN

Dublin

Sat 3/10

11:30-12:50

Nonstop1h 20m

London Stansted

Sun 4/10

06:35-07:55

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - STN London Stansted

DUBSTN

Dublin

Tue 8/9

06:30-07:50

Nonstop1h 20m

London Stansted

Thu 10/9

22:00-23:20

Nonstop1h 20m

£38

DublinLondon

DUB Dublin - LGW London Gatwick

DUBLGW

Dublin

Mon 14/9

06:25-07:55

Nonstop1h 30m

London Gatwick

Mon 14/9

21:30-22:55

Nonstop1h 25m

£38

DublinLondon

DUB Dublin - LGW London Gatwick

DUBLGW

Dublin

Tue 13/10

06:25-07:55

Nonstop1h 30m

London Gatwick

Fri 16/10

22:00-23:25

Nonstop1h 25m

£38

CorkLondon

ORK Cork - STN London Stansted

ORKSTN

Cork

Fri 2/10

20:20-21:45

Nonstop1h 25m

London Stansted

Fri 9/10

18:30-19:55

Nonstop1h 25m

£39

DublinLondon

DUB Dublin - STN London Stansted

DUBSTN

Dublin

Fri 18/9

22:00-23:20

Nonstop1h 20m

London Stansted

Sat 19/9

13:15-14:35

Nonstop1h 20m

£39

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ireland to London

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

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Ireland to London (average of £83). Flying from Ireland to London in June is currently the most expensive (average of £118). 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 IE to LON?

One of the essential ways to save on airfare from Ireland to London is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 40% on airfare.

Weekly flight availability from Ireland to London

The most flights from IE0 to LON are scheduled on a Friday (103 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (43 on average).

How often are flights from Ireland to London delayed?

About 15% of weekly flights between Ireland 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 Ireland 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 Ireland 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 Ireland to London?

The best time to book flights from Ireland to London is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Travellers seeking maximum savings on their Ireland to London flight should consider departing on Saturday 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 through reviews of airlines operating flights from Ireland to London, such as Aer Lingus,Ryanair, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,715 reviews
Check prices

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Overall

7.3

Food

6.7

Crew

8.1

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
1,715 reviews
Aer Lingus
7.3
Good
1,715 reviews
Check prices

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Overall

7.3

Food

6.7

Crew

8.1

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
5,474 reviews
Aer Lingus
7.3
Good
1,715 reviews
Check prices

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Overall

7.3

Food

6.7

Crew

8.1

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
8,184 reviews
Aer Lingus
7.3
Good
1,715 reviews
Check prices

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Overall

7.3

Food

6.7

Crew

8.1

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

  • How long is the flight from Ireland to London?

    For as low as £84, Ryanair can have you in London from Ireland in 1h 20m. Ireland and London are separated by a distance of 279 mi. All flights are typically direct.

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

    £13 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Ryanair and Aer Lingus, with prices starting from £18 and £39, respectively.

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

    The most popular flight routes from Ireland to London are Dublin - London Heathrow, Dublin - London Gatwick and Dublin - London Luton.

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

    Consider Air Canada (79%), Aer Lingus (72%) or British Airways (71%) when booking your flight. These represent the most reliable airlines when flying from Ireland to London.

  • What are the cheapest flights from Ireland to London?

    The cheapest flight price from Ireland to London is £47. On average you can expect to pay £1,452. The most popular route, (Dublin - London Heathrow), can usually be booked for £80.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ireland 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 Ireland to London?

    Currently, January is the cheapest month in which you can book a flight from Ireland to London (average of £83). Flying from Ireland to London in June is currently the most expensive (average of £118). 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

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Alternative routes for Ireland to London

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Top 3 airlines flying from Ireland to London

AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£27Average£79FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£72Average£154FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£81Average£136FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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

Cheapflights helps you find that perfect flight to London from Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ireland to London, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Ireland to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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