Find cheap flights from London to Dublin

Top tips for finding a cheap flight

• Looking for a cheap flight? 25% of our users found flights on this route for $153 or less one-way and $203 or less round-trip.
• The cheapest flight from London to Dublin was found, on average, 73 days before departure.
• Book at least 3 weeks before departure in order to get a below-average price.
• High season is considered to be November, December and January. The cheapest month to fly is August.
• 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.