June is the cheapest month to fly this route, with average fares around $90 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $167 | $60 | Peak | |
| June 2026 | $90 | $51 | Best | |
| July 2026 | $124 | $74 | ||
| August 2026 | $142 | $124 |
Departing on Wednesday offers the lowest average fares at $97. Friday departures are the most expensive at $140, a difference of $43.
The best time to fly is June. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from London to Prague is June, with average round-trip fares around $90. The lowest fare found in June is $51.
Wednesday departures are the cheapest, averaging $97 round trip. The most expensive day is Friday at $140.
Based on current pricing trends, booking for June travel offers the best value. Avoid May if possible, as fares average $167 compared to $90 in the cheapest month. August is a solid middle-ground option at $142.
Flying in June instead of May can save you approximately $77 per round trip. The cheapest month averages $90 while the most expensive averages $167.
Airlines, flight times, price calendar, and more for London to Prague
View LHR → PRG Details