Flights Karlsruhe — Porto is a popular route. The straight-line distance is 1 591 km. Flight time 2h 22m. Time difference -1h.
The minimum price for the next 3 months — from $25 (17.11.2026). The cheapest dates are highlighted in the calendar above.
The average ticket price — $44, ranging from $25 to $83. Book 1–3 months in advance to get the best deals.