August is the cheapest month to fly this route, with average fares around $1150 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $1220 | $1050 | Peak | |
| June 2026 | $1186 | $969 | ||
| July 2026 | $1216 | $1141 | ||
| August 2026 | $1150 | $1117 | Best |
Departing on Monday offers the lowest average fares at $1146. Saturday departures are the most expensive at $1277, a difference of $131.
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 Paris is August, with average round-trip fares around $1150. The lowest fare found in August is $1117.
Monday departures are the cheapest, averaging $1146 round trip. The most expensive day is Saturday at $1277.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $1220 compared to $1150 in the cheapest month. July is a solid middle-ground option at $1216.
Flying in August instead of May can save you approximately $70 per round trip. The cheapest month averages $1150 while the most expensive averages $1220.
Airlines, flight times, price calendar, and more for Philadelphia to Paris
View PHL → CDG Details