For the bet to be resolve as "yes," the following criteria could be established:

1. Scheduled Flights: Commercial flights must resume regular, scheduled operations from at least one Ukrainian airport by January 1, 2026.

2. International Routes: The resumption should include flights on international routes, not limited to domestic services.

3. Operational Stability: The resumed commercial flights should demonstrate a level of operational stability, indicating a sustainable return to normalcy in the aviation sector.

4. Official Recognition: Recognized aviation authorities or international organizations should acknowledge the reopening of commercial flights from Ukrainian airports.

5. No Significant Restrictions: The resumption should occur without significant travel restrictions or disruptions that would impede regular commercial air travel.