Kathmandu to the far west by road: Mahendra Highway buses to Mahendra Nagar

The far west is reached from Kathmandu by road across the Terai, on the Mahendra Highway. This page gives the distance, one operator’s bus listing, the stages of the road and the disruption reported on it before Dashain. For the hill roads that branch off it, see Nepalgunj and the Karnali Highway; everything else is in the getting there hub.

Distance and the main road

Kathmandu to Mahendra Nagar is around 710 km by road¹. Most of the westward run is the Mahendra Highway, which crosses the Terai from east to west for over 1,030 km, between Kakarbhitta and Mahendra Nagar². It is mostly a single-lane road in each direction and spans over 500 bridges². It runs through every province of Nepal except Karnali Province².

The stages that matter for a far-west journey, in order from Hetauda westwards²:

Wikipedia’s entry, seen in October 2026, says the section between Chisapani and Bhim Datta is in poor repair².

Buses and fares

In October 2026 Yatra Nepal listed a daily air-conditioned deluxe bus with wifi from Kathmandu to Mahendra Nagar¹. The timetable it showed:

The same page offers online booking for the run in both directions¹. BusSewa, an online ticketing platform, listed 400+ bus routes linking over 65 districts in October 2026⁵, with Surkhet to Kathmandu among its popular routes⁵. For the Surkhet and Jumla end of the journey see buses and jeeps.

Dashain 2026 disruption

The Kathmandu Post reported on 10 October 2026 that with over one million travellers expected to leave the Kathmandu Valley by road, damage to highways had thrown festival travel into turmoil³. The Prithvi Highway typically handles over 15,000 vehicles a day, and its traffic triples during Dashain³. On the Friday traffic halted when nearly 100 metres of road at Galaundi on the Prithvi Highway cracked and a 20-metre section collapsed³. The Department of Roads director general said the collapse stemmed from erosion by the Trishuli river after the Bhotekoshi floods of 26 August³.

Advance booking counters were temporarily suspended on the Saturday and several long-distance night buses were halted, while small vehicles were rerouted via the Kanti Highway and Tribhuvan Rajpath after 6:00 pm that day and fares were refunded to affected travellers³. The same report records traffic halted across the Lokaha bridge on the Narayangadh-Kawasoti section of the Mahendra Highway after part of the structure sagged on the Saturday evening³.

The monsoon pattern behind them is in monsoon road closures.

How the Mahendra Highway was built

The Department of Roads’ strategic road network statistics for 2017/18 list the Mahendra Rajmarga (H01) at 1,027.67 km⁶. The same table breaks it into sections, each built in its own period⁶.

The hill leg: Naubise to Mugling and Narayanghat

A World Bank environmental and social assessment describes the 2-lane Nagdhunga-Naubise-Mugling road as 94.7 km long, on the north-south trade corridor between Kathmandu and Birgunj⁷. It found no passing lanes on the Prithvi Highway section, no traffic signage even at major intersections such as Naubise, Galchi and Malekhu, and speed limits not applied on most of the section⁷. Mugling has a junction with the Mugling-Narayanghat section, which connects the Prithvi Highway to the Mahendra Highway⁷.

The World Bank project also plans to upgrade the Kamala-Dhalkebar-Pathlaiya section of the Mahendra Highway from 2-lane to 4-lane⁷.

The Narayanghat-Mugling road runs between steep hills on one side and the Trishuli River on the other, and was highly prone to landslides each year⁸. In a February 2025 World Bank feature, over a hundred slopes on it were reported fortified with bioengineering and drainage⁸. Slope hazards on other hill roads are in landslides and road safety.

Safety and checks

A bus from Kathmandu to Dhangadhi on the East-West Highway went out of control and overturned at Daunne’s S bend on Monday 12 October 2026, with five people injured⁴. In the Dashain measures reported on 10 October 2026, long-distance buses were mandated to employ two drivers, and fare lists were to be displayed at departure points³. Joint inspection teams were deployed at departure points including New Bus Park in Gongabu, Kalanki, Koteshwar and Balkhu³.

The calmer months for travel are in best time to visit west Nepal.