AirHint found the following cheapest return flights from Trondheim (TRD) to Istanbul (IST) in November 2025 (see full year).
Return flights
| 29 Nov - 30 Nov | KLM | ||
| 17 Nov - 19 Nov | KLM | ||
| 02 Nov - 09 Nov | Norwegian | ||
| 22 Nov - 23 Nov | Scandinavian Airlines |
Also check the deals for one-way flights from Trondheim to Istanbul in November.
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