The cheapest round-trip from Barcelona to Istanbul is about 150 EUR, usually in November 2026; May 2027 is priciest, so booking the low month saves around 131 EUR (~47%). Typical fare ~182 EUR, from 330 priced fares. Flightmussy live data, updated 2026-06-05.
Cheap flights from Barcelona (BCN/GRO/REU) to Istanbul (IST/SAW). Free, no signup, no ads, no tracking. Compare every airline across 12 months of fares on one heatmap — including low-cost carriers Google Flights often deprioritises.
Cheapest round-trip seen: 150 EUR, usually around November 2026. Typical fare ~182 EUR. Across the year prices range roughly 150–281 EUR — about 47% cheaper in the low season than the peak (May 2027). Carriers on this route include Air Serbia, Turkish Airlines, Pegasus, Vueling.
Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-05. Prices change constantly — search live for current fares.
Flightmussy is a free flight meta-search built by one person in Oslo. No signup, no ads, no tracking — email is optional, only for route price alerts. Compare fares across airlines and see 12 months of prices at a glance — including low-cost carriers Google Flights often deprioritises (Widerøe, Wizz Air, Norwegian, Ryanair). Pay with a card at the airline, or use the Crypto button on any result to check out in BTC, ETH, USDT, BNB or AVA via Travala.
Flightmussy runs its own 12-month forward fare scans across thousands of routes worldwide and publishes the data openly. Read the cheapest month to fly almost anywhere → — a global study of when fares are lowest — or browse the cheapest destinations from a city: