Airports in Bihar
At present, Bihar has three functional airports -
Patna airport: Set to receive massive infra upgrade by March 2025 + Bihta Airport is likely to get state cabinet approval for runway extension as well.
Gaya airport: Requires extension of runway and infra upgrade.
Darbhanga airport: Already a success story of Udaan scheme + undergoing massive infra upgrade
The other cities which deserve a fully functional airport are -
Raxaul - Caters to Bettaih, Motihari, and Birganj (Nepal),
Purnea - Terminal construction under process (longest runway in Bihar till date) + potential to become one of the business airports in Eastern India + will cater to almost all Seemanchal districts
Bhagalpur - The proposed airport in Sultanpur can cater to 3-4 districts with ease.
Gopalganj - Sabeya airport is very well located with 600+ acre land already available. It can serve both Siwan and Gopalganj due to its unique location and half of the Saran district. Even though I am from Chhapra, I hope Gopalganj is chosen as one of the four greenfield airports, not Saran. Half of Saran is close to Patna and the other half will be close to Sabeya Airport.
Nalanda - I am not sure about the utility of this airport or the demand for it. But, it will get built anyway due to Nitish Kumar's influence. If it is built, I hope it is well placed to cater to multiple districts and away from Gaya airport.
Muzzafarpur - A well-located airport can serve 3-4 districts with ease.
For Rohtas and Kaimur, Varanasi Airport is quite close.
If this much is done in the next ten years, there will be an airport in every 100-150 km radius of Bihar.