National air transport system:
number of registered air carriers: 8
inventory of registered aircraft operated by air carriers: 13
annual passenger traffic on registered air carriers: 476,352
annual freight traffic on registered air carriers: 85,839 mt-km (2015)

Civil aircraft registration country code prefix:
9Q (2016)

Airports:
198 (2013)
country comparison to the world: 27
[see also: Airports country ranks ]

Airports - with paved runways:
total: 26
[see also: Airports - with paved runways - total country ranks ]
over 3,047 m: 3
[see also: Airports - with paved runways - over 3,047 m country ranks ]
2,438 to 3,047 m: 3
[see also: Airports - with paved runways - 2,438 to 3,047 m country ranks ]
1,524 to 2,437 m: 17
[see also: Airports - with paved runways - 1,524 to 2,437 m country ranks ]
914 to 1,523 m: 2
[see also: Airports - with paved runways - 914 to 1,523 m country ranks ]
under 914 m: 1 (2017)
[see also: Airports - with paved runways - under 914 m country ranks ]

Airports - with unpaved runways:
total: 172
[see also: Airports - with unpaved runways - total country ranks ]
1,524 to 2,437 m: 20
[see also: Airports - with unpaved runways - 1,524 to 2,437 m country ranks ]
914 to 1,523 m: 87
[see also: Airports - with unpaved runways - 914 to 1,523 m country ranks ]
under 914 m: 65 (2013)
[see also: Airports - with unpaved runways - under 914 m country ranks ]

Heliports:
1 (2013)
[see also: Heliports country ranks ]

Pipelines:
gas 62 km; oil 77 km; refined products 756 km (2013)

Railways:
total: 4,007 km
[see also: Railways - total country ranks ]
narrow gauge: 3,882 km 1.067-m gauge (858 km electrified); 125 km 1.000-m gauge (2014)
country comparison to the world: 46

Roadways:
total: 153,497 km
[see also: Roadways - total country ranks ]
paved: 2,794 km
[see also: Roadways - paved country ranks ]
unpaved: 150,703 km (2004)
[see also: Roadways - unpaved country ranks ]
country comparison to the world: 34

Waterways:
15,000 km (including the Congo River, its tributaries, and unconnected lakes) (2011)
country comparison to the world: 8
[see also: Waterways country ranks ]

Merchant marine:
total: 33
[see also: Merchant marine - total country ranks ]
by type: general cargo 18, oil tanker 1, other 14 (2017)
country comparison to the world: 119

Ports and terminals:
major seaport(s): Banana
river or lake port(s): Boma, Bumba, Kinshasa, Kisangani, Matadi, Mbandaka (Congo); Kindu (Lualaba); Bukavu, Goma (Lake Kivu); Kalemie (Lake Tanganyika)