Cheap Flights from London to Dublin

The route from London to Dublin covers about 450 km (280 miles). A nonstop flight, when scheduled, usually takes around 1h 10m gate to gate, although total trip time still depends on airport queues, transfer costs, and how early you need to arrive. On shorter European city pairs like this one, time savings can matter as much as the fare itself. If you only see one-stop options on your travel dates, connections through Amsterdam or Barcelona can widen the fare mix, but total journey time often stretches to 4 to 6 hours.

For many travelers, the cheapest time to fly from London to Dublin is outside St Patrick's period, summer, and December weekends. January, February, and mid-November usually give you a better chance of seeing lower fares, especially if you can depart on Tuesday or Wednesday and avoid the busiest Friday-to-Sunday patterns. Shoulder-season trips are often the sweet spot on this classic city-break route: you still get a strong travel experience in Dublin, but airlines are not dealing with the same pressure they see during bank holidays, school breaks, or sold-out weekend peaks.

For this route, compare a mix of budget and full-service carriers rather than assuming one airline always wins on value.

• easyJet: often competitive on short-haul European routes with solid schedule choice.
• Ryanair: often one of the lowest headline fares if you can travel light.
• British Airways: best for higher-frequency business-heavy timings from the UK.
• Lufthansa: a strong choice when schedule flexibility matters more than the lowest base fare.
• Aer Lingus: useful for Ireland-linked schedules and city-break timing.

Dublin skyline and city-break atmosphere for this route.

Headline round-trip fares on this route often start around EUR 47 to EUR 92 in quieter periods. A more typical booking window lands closer to EUR 137 to EUR 202, while peak travel dates can push pricing toward EUR 236 to EUR 346 or higher. Fare swings usually come from holiday demand, limited low-cost inventory, and whether you want the most convenient departure bank. On short-haul Europe trips, baggage, seat selection, and airport-transfer costs can change the real total more than many travelers expect, so always compare like-for-like fares.

On this route, airport choice can save money only if the ground transfer still makes sense for your trip. Start with Heathrow Airport on the London side and Dublin Airport on the Dublin side, then widen the search if the fare difference is meaningful.

Dublin is compact, lively, and easy to combine with a broader Ireland trip, whether you are after pub culture, coastal walks, or a quick weekend escape. If you are still planning the rest of the trip, see our Dublin destination guide for more ideas before you book.

Airplane and route-planning visual for London to Dublin.