August is the cheapest month to fly this route, with average fares around $748 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $849 | $768 | Peak | |
| June 2026 | $842 | $770 | ||
| July 2026 | $790 | $708 | ||
| August 2026 | $748 | $708 | Best |
Departing on Monday offers the lowest average fares at $805. Friday departures are the most expensive at $832, a difference of $27.
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 Boston to Paris is August, with average round-trip fares around $748. The lowest fare found in August is $708.
Monday departures are the cheapest, averaging $805 round trip. The most expensive day is Friday at $832.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $849 compared to $748 in the cheapest month. June is a solid middle-ground option at $842.
Flying in August instead of May can save you approximately $101 per round trip. The cheapest month averages $748 while the most expensive averages $849.
Airlines, flight times, price calendar, and more for Boston to Paris
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