AirHint found the following cheapest one-way flights from Islamabad (ISB) to Bucharest (BBU) in December 2025 (see full year).
One-Way flights
| 16 Dec | Fly Jinnah | ||
| 15 Dec | PIA | ||
| 25 Dec | PIA | ||
| 18 Dec | flydubai | ||
| 20 Dec | PIA |
Also check the deals for return flights from Islamabad to Bucharest in December.
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