August is the cheapest month to fly this route, with average fares around $789 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $895 | $865 | ||
| June 2026 | $1014 | $756 | Peak | |
| July 2026 | $891 | $781 | ||
| August 2026 | $789 | $781 | Best |
Departing on Monday offers the lowest average fares at $864. Friday departures are the most expensive at $1033, a difference of $169.
The best time to fly is August. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Philadelphia to Dublin is August, with average round-trip fares around $789. The lowest fare found in August is $781.
Monday departures are the cheapest, averaging $864 round trip. The most expensive day is Friday at $1033.
Based on current pricing trends, booking for August travel offers the best value. Avoid June if possible, as fares average $1014 compared to $789 in the cheapest month. May is a solid middle-ground option at $895.
Flying in August instead of June can save you approximately $225 per round trip. The cheapest month averages $789 while the most expensive averages $1014.
Airlines, flight times, price calendar, and more for Philadelphia to Dublin
View PHL → DUB Details