National air transport system:
number of registered air carriers: 5
inventory of registered aircraft operated by air carriers: 51
annual passenger traffic on registered air carriers: 3,636,642
annual freight traffic on registered air carriers: 4,691,280 mt-km (2015)

Civil aircraft registration country code prefix:
YR (2016)

Airports:
45 (2013)
country comparison to the world: 96
[see also: Airports country ranks ]

Airports - with paved runways:
total: 26
[see also: Airports - with paved runways - total country ranks ]
over 3,047 m: 4
[see also: Airports - with paved runways - over 3,047 m country ranks ]
2,438 to 3,047 m: 10
[see also: Airports - with paved runways - 2,438 to 3,047 m country ranks ]
1,524 to 2,437 m: 11
[see also: Airports - with paved runways - 1,524 to 2,437 m country ranks ]
under 914 m: 1 (2017)
[see also: Airports - with paved runways - under 914 m country ranks ]

Airports - with unpaved runways:
total: 19
[see also: Airports - with unpaved runways - total country ranks ]
914 to 1,523 m: 5
[see also: Airports - with unpaved runways - 914 to 1,523 m country ranks ]
under 914 m: 14 (2013)
[see also: Airports - with unpaved runways - under 914 m country ranks ]

Heliports:
2 (2013)
[see also: Heliports country ranks ]

Pipelines:
gas 3,726 km; oil 2,451 km (2013)

Railways:
total: 11,268 km
[see also: Railways - total country ranks ]
broad gauge: 60 km 1.524-m gauge
standard gauge: 10,781 km 1.435-m gauge (3,292 km electrified)
narrow gauge: 427 km 0.760-m gauge (2014)
country comparison to the world: 23

Roadways:
total: 84,185 km
[see also: Roadways - total country ranks ]
paved: 49,873 km (includes 337 km of expressways)
[see also: Roadways - paved country ranks ]
unpaved: 34,312 km (2012)
[see also: Roadways - unpaved country ranks ]
country comparison to the world: 57

Waterways:
1,731 km (includes 1,075 km on the Danube River, 524 km on secondary branches, and 132 km on canals) (2010)
country comparison to the world: 45
[see also: Waterways country ranks ]

Merchant marine:
total: 114
[see also: Merchant marine - total country ranks ]
by type: general cargo 13, oil tanker 7, other 94 (2017)
country comparison to the world: 78

Ports and terminals:
major seaport(s): Constanta, Midia
river port(s): Braila, Galati (Galatz), Mancanului (Giurgiu), Tulcea (Danube River)