Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (17% more expensive on average)
(avg. price over the last 2 weeks)
When to book flights from London to Dublin
Estimated return price
Average price per month
Flight prices as travel date approaches
Top tips for finding a cheap flight out of London
Looking for a cheap flight? 25% of our users found flights on this route for $123 or less one-way.
The cheapest flight from London to Dublin was found, on average, 88 days before departure.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is November.
Download the Heathrow App to take advantage of the food and drink pre-ordering service with participating outlets at London Heathrow Airport (LHR). You can either consume in the terminal areas or take your purchases with you on-board your flight.
The Park & Ride service at Heathrow Airport is the most economical for long-term stays with prices starting around £8 (€9) per day. A free shuttle bus will transfer you to your required terminal, taking around 5-15min, depending on the distance between your terminal and the car park you are using.
London Heathrow is the UK’s busiest airport, operating four terminals. Make sure to check with your airline which terminal you need to depart from. Terminals are connected to each other by underpasses, buses 482 and 490, the Heathrow Express Rail Link, and the London Underground Piccadilly Line.
FAQs for booking London to Dublin flights
Yes, you can take the Dublin Bus, which runs between Dublin Airport and the city centre. They depart from the Bus Park of Zone 15 approx. every 15-30min. The fastest option is the 747 Airlink Express costing around €7. Tickets can be purchased either on the bus or online and leave around every 10min. Journey times can take up to 1h.
Remember to request specialist assistance from your airline at least 48h before departure. When you arrive at your terminal, you can pick up a sunflower lanyard from the assistance desk. This will ensure discretion, and staff will be more easily able to identify you if you need extra support at any time.
The fastest option would be the Heathrow Express train service, which travels non-stop direct between Paddington station and all terminals, taking around 15min. A standard ticket bought on the day will cost you around £25 (€30). Advance fares can work out a lot cheaper starting around £5.50 (€6.50). Another option would be to take the London Underground Piccadilly Line, which connects to all terminals. This is a cheaper option with fares ranging from £3-6 (€3.50-7) but takes longer, usually around 1h. There is also the TfL Rail link from west or central London stations, taking around 30min and costing around £11 (€13).
There are usually 108 direct flights each day leaving London in the direction of Dublin, for a total of 757 flights weekly.
In normal times, British Airways flies from London to Dublin up to 26 times per day, American Airlines up to 23 times per day, and Aer Lingus up to 22 times per day.
The earliest flight leaves London at 06:40 and lands in Dublin at 08:00.
The last flight leaves London at 22:25 and lands in Dublin at 23:45.
All the following airlines operate direct flights between London and Dublin: American Airlines, Air Canada, British Airways, Aer Lingus, Japan Airlines, Kenya Airways, Qatar Airways, and United Airlines.
The Airbus A320-100/200 is the aircraft model that flies most regularly on the London to Dublin flight route.
oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between London and Dublin, with oneworld being the most commonly used for this route.
There are direct flights from London to Dublin on a daily basis.
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Dublin.
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from London is likely to change within 7 days, so travellers know whether to wait or book now.
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Dublin with an airline and back to London with another airline.
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dublin from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.