Railways: 0 km

Highways:
total: 19,600 km
paved: 686 km
unpaved: 18,914 km (1996 est.)

Waterways: 10,940 km

Ports and harbors: Kieta, Lae, Madang, Port Moresby, Rabaul

Merchant marine:
total: 20 ships (1,000 GRT or over) totaling 35,400 GRT/50,869 DWT
ships by type: bulk 2, cargo 6, chemical tanker 1, combination ore/oil 5, container 1, oil tanker 2, roll-on/roll-off 3 (1998 est.)

Airports: 492 (1998 est.)

Airports—with paved runways:
total: 19
2,438 to 3,047 m: 1
1,524 to 2,437 m: 14
914 to 1,523 m: 3
under 914 m: 1 (1998 est.)

Airports—with unpaved runways:
total: 473
1,524 to 2,437 m: 13
914 to 1,523 m: 60
under 914 m: 400 (1998 est.)

Heliports: 2 (1998 est.)