August is the cheapest month to fly this route, with average fares around $1055 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $1134 | $866 | Peak | |
| June 2026 | $1100 | $842 | ||
| July 2026 | $1083 | $1006 | ||
| August 2026 | $1055 | $967 | Best |
Departing on Tuesday offers the lowest average fares at $1015. Saturday departures are the most expensive at $1295, a difference of $280.
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 Frankfurt is August, with average round-trip fares around $1055. The lowest fare found in August is $967.
Tuesday departures are the cheapest, averaging $1015 round trip. The most expensive day is Saturday at $1295.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $1134 compared to $1055 in the cheapest month. June is a solid middle-ground option at $1100.
Flying in August instead of May can save you approximately $79 per round trip. The cheapest month averages $1055 while the most expensive averages $1134.
Airlines, flight times, price calendar, and more for Philadelphia to Frankfurt
View PHL → FRA Details