June is the cheapest month to fly this route, with average fares around $49 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $64 | $44 | ||
| June 2026 | $49 | $46 | Best | |
| July 2026 | $66 | $46 | ||
| August 2026 | $74 | $58 | Peak |
Departing on Wednesday offers the lowest average fares at $50. Saturday departures are the most expensive at $69, a difference of $19.
The best time to fly is June. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from London to Dublin is June, with average round-trip fares around $49. The lowest fare found in June is $46.
Wednesday departures are the cheapest, averaging $50 round trip. The most expensive day is Saturday at $69.
Based on current pricing trends, booking for June travel offers the best value. Avoid August if possible, as fares average $74 compared to $49 in the cheapest month. July is a solid middle-ground option at $66.
Flying in June instead of August can save you approximately $25 per round trip. The cheapest month averages $49 while the most expensive averages $74.
Airlines, flight times, price calendar, and more for London to Dublin
View LHR → DUB Details