Flights to Bhutan from Singapore:
Flights to Bhutan from Singapore are on Thursday & Sunday. The Druk Air flies to and from Singapore via Gauhati (India). Singapore to Bhutan flight time is at 6:30 am and arrive Paro, Bhutan at 10:30 am.
Bhutan to Singapore Flights is on Wednesday & Saturday: Druk Air Flight No. KB 540 departs from Paro at 7:30 am and arrive Singapore at 3:35 pm.
The flight duration is 5 ½ hours including 45 minutes stopover in Gauhati (India). All timings in local.
Flights to Bhutan from Bangkok (Thailand):
There is flight from Bangkok to Bhutan on daily basis. The Direct flights from Bangkok to Paro (Bhutan) are on Monday, Wednesday, Thursday, Friday & Sunday. The flight duration is 2 hrs. 47 minutes.
The Flights from Bangkok to Bhutan on Tuesday and Saturday are via Bagdogra (West Bengal, India) with a stop over for 40 minutes. The duration of flight is 3 hrs. 27 minutes including 40 minutes stop over in Bagdogra, India.
Flights from Paro (Bhutan) to Bangkok (Return flights):
There is flight from Paro to Bangkok on daily basis. The direct flights from Paro to Bangkok are on Tuesday, Wednesday, Thursday, Saturdays and Sunday (Flight duration: 2 hours 47 minutes).
The flights to Bangkok via Bagdogra are on Monday and Friday. The duration of Flight from Bangkok to Paro is 3 hours 27 minutes.
Flights to Bhutan from the USA (US):
There are no direct flights to Bhutan from USA. If you plan to travel from East coast, then you have to fly to Delhi. If you plan to travel from West coast, then you have to fly to Bangkok or Singapore and make connection to fly into Bhutan.