August is the cheapest month to fly this route, with average fares around $99 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $157 | $77 | Peak | |
| June 2026 | $103 | $65 | ||
| July 2026 | $103 | $74 | ||
| August 2026 | $99 | $95 | Best |
Departing on Sunday offers the lowest average fares at $99. Friday departures are the most expensive at $128, a difference of $29.
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 London to Paris is August, with average round-trip fares around $99. The lowest fare found in August is $95.
Sunday departures are the cheapest, averaging $99 round trip. The most expensive day is Friday at $128.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $157 compared to $99 in the cheapest month. July is a solid middle-ground option at $103.
Flying in August instead of May can save you approximately $58 per round trip. The cheapest month averages $99 while the most expensive averages $157.
Airlines, flight times, price calendar, and more for London to Paris
View LHR → CDG Details