Airlines and Flights Guide to Bhutan

Air travel is the primary mode of international access to Bhutan, a landlocked Himalayan kingdom with only one international airport at Paro and a limited road network. Two airlines serve the country: Druk Air (Royal Bhutan Airlines), the state-owned national carrier founded in 1981, and Bhutan Airlines, the first private airline, which began operations as Tashi Air in 2011. Together, they connect Bhutan to destinations across South and South-East Asia, while a small domestic network links Paro to Bumthang and Gelephu. Planning flights to Bhutan requires understanding the peculiarities of Paro airport — one of the most challenging in the world — as well as seasonal scheduling, booking procedures, and the interactions between air travel and Bhutan's Sustainable Development Fee (SDF) framework.^[1]

Paro International Airport (IATA: PBH) sits at 2,235 metres elevation in a deep valley surrounded by peaks rising to 5,500 metres. The single runway is only 2,265 metres (7,431 feet) long, and the approach requires pilots to navigate a winding valley with visibility of the runway only in the final moments before landing. There is no radar guidance — only a single VOR (Very High Frequency Omni-directional Range) beacon — and landings are restricted to visual meteorological conditions during daylight hours only. Fewer than 50 pilots worldwide are certified to land at Paro, each requiring a minimum of 1,500 total flight hours and an Airline Transport Pilot (ATP) certificate before beginning the airport-specific qualification programme.^[2]

Druk Air — Royal Bhutan Airlines

Druk Air, established in 1981 and operating its first commercial flight in 1983, is Bhutan's flag carrier and the larger of the two airlines. The airline operates a fleet of Airbus A319 and A320 aircraft and connects Paro to ten international destinations across five countries. Druk Air is a member of no major airline alliance but maintains codeshare and interline agreements with several carriers.

Bhutan Airlines

Bhutan Airlines (originally Tashi Air) is Bhutan's first and only private airline, launched on 4 December 2011 by Tashi Air Pvt. Ltd, a subsidiary of the Tashi Group, one of Bhutan's largest conglomerates. After initial operational difficulties, the airline resumed services on 10 October 2013 following the wet lease of an Airbus A320. Bhutan Airlines currently operates to four international destinations: Kolkata and Delhi (India), Bangkok (Thailand), and Kathmandu (Nepal). The airline operates flights from Bangkok to Paro via Kolkata seven days a week and serves Kathmandu six days a week (except Friday). Bhutan Airlines has announced plans to expand to Dhaka, Singapore, and Yangon, though timelines for these routes have not been confirmed.^[3]

Domestic Flights

Druk Air operates a small domestic network using its fleet or smaller chartered aircraft. The primary domestic routes connect Paro to Bumthang (Bathpalathang Airport) and Paro to Gelephu (Gelephu Airport). The Paro-Bumthang route operates five times weekly and provides a vital air link to central Bhutan, reducing a journey that takes 10 to 12 hours by road to a 25-minute flight. The Paro-Gelephu route operates weekly, serving the southern border town that is being developed as a "Mindfulness City" under a major national project. Yonphula Domestic Airport near Trashigang in eastern Bhutan exists but has seen limited scheduled service due to challenging approach conditions. Gelephu's airport is expected to see increased traffic as the Mindfulness City project advances.^[4]

The Paro Airport Approach

Paro International Airport is consistently rated among the most challenging airports in the world. The approach requires pilots to descend into a narrow valley surrounded by peaks up to 5,500 metres, execute multiple turns while maintaining visual contact with terrain, and align with a short runway that becomes visible only moments before touchdown. There is no instrument landing system (ILS) and no radar guidance; pilots rely on a single VOR beacon and visual references. Operations are restricted to daylight hours under visual flight rules (VFR), and flights are frequently delayed or cancelled due to fog, cloud cover, or crosswinds.

To qualify for the Paro approach, pilots must hold an Airline Transport Pilot (ATP) certificate with a minimum of 1,500 total flight hours and complete a dedicated training programme that includes simulator sessions and supervised approaches. Fewer than 50 pilots worldwide hold the Paro qualification. This exclusivity contributes to the limited flight frequencies and explains why sudden pilot shortages or retirements can directly affect Bhutan's air connectivity. Passengers on the Paro approach are treated to one of the world's most dramatic scenic flights, with Himalayan peaks, terraced rice paddies, and dzong fortresses visible from the cabin windows during the final descent.^[5]

Booking Process and Fares

Flights on both Druk Air and Bhutan Airlines can be booked directly through their respective websites (drukair.com.bt and bhutanairlines.bt), through licensed Bhutanese tour operators, or through international travel agencies. Many visitors book flights as part of a package arranged by their tour operator, which is the traditional approach given Bhutan's former requirement that all tourists travel through licensed operators. Since the liberalisation of tourism policy (tourists can now travel independently with only the SDF payment), direct bookings have become more common.

Typical return fares from major cities (approximate, subject to season and booking class): Delhi to Paro from USD 400 to 700; Bangkok to Paro from USD 500 to 900; Kathmandu to Paro from USD 300 to 500; Kolkata to Paro from USD 300 to 550; Singapore to Paro from USD 600 to 1,000. Fares are generally higher during the peak tourist seasons (March-May and September-November) and lower during the monsoon months (June-August). Baggage allowance on both airlines is typically 20 kg for economy class and 30 kg for business class, with additional charges for excess baggage. Effective 1 January 2026, a 5 per cent Goods and Services Tax (GST) applies to all Druk Air services.^[6]

Practical Tips for Air Travellers

Several practical considerations should guide air travel planning to Bhutan. First, flights are frequently subject to weather delays and cancellations, particularly during the monsoon season and in winter when valley fog is common; travellers should avoid booking tight onward connections on the day of arrival or departure. Second, seats on Paro flights are limited (the aircraft are narrow-body A319/A320s with approximately 120-140 seats), and peak-season flights sell out months in advance; early booking is strongly advised. Third, the left side of the aircraft offers the best views of the Himalayas on the approach to Paro from most directions, though crew will typically inform passengers of the scenic side. Finally, travellers should confirm that their Bhutan visa and SDF payment are complete before travelling, as airlines may deny boarding to passengers without valid documentation.^[7]

For domestic flights, the Paro-Bumthang route is particularly popular with tourists who wish to explore central Bhutan without the long overland drive. The flight offers extraordinary views of the Black Mountains and the Bumthang valley. Seats are limited on the smaller aircraft used for domestic routes, and bookings should be made well in advance. Domestic fares are relatively modest, typically between USD 100 and 200 one way.^[8]