The cheapest flight to Dortmund you can get by boooking 6 days before departure.
The most popular airlines on the route Iasi - Dortmund: Lufthansa (LH), Tarom (RO).
The cheapest flights you can book on the route Jassy Airport (IAS) - Dortmund Airport (DTM).
There is no direct flight on the route from Iasi to Dortmund
The shortest flights with change last about 6h 35min.