July is the cheapest month to fly this route, with average fares around $114 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $144 | $121 | ||
| June 2026 | $117 | $86 | ||
| July 2026 | $114 | $73 | Best | |
| August 2026 | $157 | $138 | Peak |
Departing on Wednesday offers the lowest average fares at $103. Sunday departures are the most expensive at $139, a difference of $36.
The best time to fly is July. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Barcelona to Lisbon is July, with average round-trip fares around $114. The lowest fare found in July is $73.
Wednesday departures are the cheapest, averaging $103 round trip. The most expensive day is Sunday at $139.
Based on current pricing trends, booking for July travel offers the best value. Avoid August if possible, as fares average $157 compared to $114 in the cheapest month. May is a solid middle-ground option at $144.
Flying in July instead of August can save you approximately $43 per round trip. The cheapest month averages $114 while the most expensive averages $157.
Airlines, flight times, price calendar, and more for Barcelona to Lisbon
View BCN → LIS Details