A 3-day Bardia National Park tour from Kathmandu by flight is a wonderful way to explore the rich wildlife and natural beauty of the park. Here's a suggested itinerary for your trip:

Day 1: Kathmandu to Bardia National Park
Take an early morning flight from Kathmandu to Nepalgunj, which is the nearest airport to Bardia National Park. The flight takes around 1 hour.
Upon arrival in Nepalgunj, you will be transferred to Bardia National Park by road. The journey from Nepalgunj to Bardia takes approximately 2-3 hours.
After reaching the park, check-in at your accommodation and freshen up.
In the afternoon, enjoy a jungle walk or a village tour to experience the local culture and traditions.
In the evening, you can relax and enjoy a cultural program or a bonfire at your accommodation.

Day 2: Safari Activities in Bardia National Park
Start your day early with a thrilling jungle safari. You have various options for safari activities, including jeep safari, elephant safari, or walking safari. Choose the one that suits your preference.
During the safari, you'll have the opportunity to spot a diverse range of wildlife, such as tigers, elephants, rhinos, deer, crocodiles, and numerous bird species. Bardia National Park is known for its rich biodiversity.
After the morning safari, return to your accommodation for breakfast.
In the afternoon, you can engage in additional activities like bird watching, nature walks, or a visit to the crocodile breeding center.
Spend the evening at leisure, enjoying the serene ambiance of the park.

Day 3: Bardia National Park to Kathmandu
On the last day, you can opt for an early morning bird watching session to observe the park's avian inhabitants in their natural habitat.
After breakfast, check out from your accommodation.
You will then be transferred back to Nepalgunj by road.
Catch your return flight from Nepalgunj to Kathmandu.
Upon arrival in Kathmandu, your tour concludes.