Here is a sample itinerary for a 30-day trip to Serbia on a limited budget:
Day 1: Arrival in Belgrade
- Cost: $200-300 for a one-way flight from your location to Belgrade
- Transportation: Take the bus from the airport to your hotel
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 2-3: Belgrade
- Cost: $20-30 per day for meals and sightseeing
- Transportation: Walk or take the bus to visit the Kalemegdan Fortress, St. Sava Temple, and other historical sites in the city
Day 4: Belgrade to Novi Sad
- Cost: $10-15 for a one-way bus or train ticket
- Transportation: Take the bus or train from Belgrade to Novi Sad
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 5-6: Novi Sad
- Cost: $20-30 per day for meals and sightseeing
- Transportation: Walk or take the bus to visit the Old Town, the Petrovaradin Fortress, and other historical sites in the city
Day 7: Novi Sad to Vrnjacka Banja
- Cost: $10-15 for a one-way bus ticket
- Transportation: Take the bus from Novi Sad to Vrnjacka Banja
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 8-9: Vrnjacka Banja
- Cost: $20-30 per day for meals and sightseeing
- Transportation: Walk or take the bus to visit the hot springs, the spa centers, and other historical sites in the city
Day 10: Vrnjacka Banja to Kopaonik
- Cost: $20-30 for a one-way bus ticket
- Transportation: Take the bus from Vrnjacka Banja to Kopaonik
- Accommodation: $20-40 per night for a budget hotel on the mountain
Day 11-12: Kopaonik
- Cost: $20-30 per day for meals and sightseeing
- Transportation: Walk or take the bus to visit the national park, the ski resorts and other tourist attractions on the mountain
Day 13: Kopaonik to Nis
- Cost: $20-30 for a one-way bus ticket
- Transportation: Take the bus from Kopaonik to Nis
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 14-15: Nis
- Cost: $20-30 per day for meals and sight seeing
- Transportation: Walk or take the bus to visit the Nis Fortress, the Skull Tower, and other historical sites in the city
Day 16: Nis to Soko Banja
- Cost: $10-15 for a one-way bus ticket
- Transportation: Take the bus from Nis to Soko Banja
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 17-18: Soko Banja
- Cost: $20-30 per day for meals and sightseeing
- Transportation: Walk or take the bus to visit the hot springs, the spa centers, and other historical sites in the city
Day 19: Soko Banja to Zlatibor
- Cost: $20-30 for a one-way bus ticket
- Transportation: Take the bus from Soko Banja to Zlatibor
- Accommodation: $20-40 per night for a budget hotel on the mountain
Day 20-21: Zlatibor
- Cost: $20-30 per day for meals and sightseeing
- Transportation: Walk or take the bus to visit the national park, the ski resorts and other tourist attractions on the mountain
Day 22: Zlatibor to Novi Pazar
- Cost: $20-30 for a one-way bus ticket
- Transportation: Take the bus from Zlatibor to Novi Pazar
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 23-24: Novi Pazar
- Cost: $20-30 per day for meals and sightseeing
- Transportation: Walk or take the bus to visit the Old Town, the Stara Carsija, and other historical sites in the city
Day 25: Novi Pazar to Sarajevo
- Cost: $20-30 for a one-way bus ticket
- Transportation: Take the bus from Novi Pazar to Sarajevo
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 26-27: Sarajevo
- Cost: $20-30 per day for meals and sightseeing
- Transportation: Walk or take the bus to visit the Old Town, the Baščaršija, the Sarajevo Tunnel, and other historical sites in the city
Day 28: Sarajevo to Novi Sad
- Cost: $20-30 for a one-way bus ticket
- Transportation: Take the bus from Sarajevo to Novi Sad
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 29: Novi Sad to Belgrade
- Cost: $10-15 for a one-way bus or train ticket
- Transportation: Take the bus or train from Novi Sad to Belgrade
- Accommodation: $20-40 per night for a budget hotel in the city center
Day 30: Departure from Belgrade
- Cost: $200-300 for a one-way flight from Belgrade to your destination
Total cost: Approximately $1000-1500 (including flights, transportation, accommodation, and meals)
Please note that this is a rough estimate and prices may vary depending on season, location, and personal preferences.
Also, this itinerary includes a lot of travelling, you might want to consider to stay longer in some of the places to have more time to enjoy the location, and also to have a better rate for your accommodation.
Additionally, Serbia is a country with a rich culture and history, and there are many more places that you can visit, like: Subotica, Vojvodina, Subotica, Krusevac, etc.