June is the cheapest month to fly this route, with average fares around $67 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $126 | $50 | Peak | |
| June 2026 | $67 | $48 | Best | |
| July 2026 | $82 | $55 | ||
| August 2026 | $91 | $80 |
Departing on Tuesday offers the lowest average fares at $69. Saturday departures are the most expensive at $93, a difference of $24.
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 Barcelona is June, with average round-trip fares around $67. The lowest fare found in June is $48.
Tuesday departures are the cheapest, averaging $69 round trip. The most expensive day is Saturday at $93.
Based on current pricing trends, booking for June travel offers the best value. Avoid May if possible, as fares average $126 compared to $67 in the cheapest month. August is a solid middle-ground option at $91.
Flying in June instead of May can save you approximately $59 per round trip. The cheapest month averages $67 while the most expensive averages $126.
Airlines, flight times, price calendar, and more for London to Barcelona
View LHR → BCN Details