National air transport system:
number of registered air carriers: 10
inventory of registered aircraft operated by air carriers: 76
annual passenger traffic on registered air carriers: 582,011
annual freight traffic on registered air carriers: 0 mt-km (2015)

Civil aircraft registration country code prefix:
OY (2016)

Airports:
80 (2013)
country comparison to the world: 68
[see also: Airports country ranks ]

Airports - with paved runways:
total: 28
[see also: Airports - with paved runways - total country ranks ]
over 3,047 m: 2
[see also: Airports - with paved runways - over 3,047 m country ranks ]
2,438 to 3,047 m: 7
[see also: Airports - with paved runways - 2,438 to 3,047 m country ranks ]
1,524 to 2,437 m: 5
[see also: Airports - with paved runways - 1,524 to 2,437 m country ranks ]
914 to 1,523 m: 12
[see also: Airports - with paved runways - 914 to 1,523 m country ranks ]
under 914 m: 2 (2017)
[see also: Airports - with paved runways - under 914 m country ranks ]

Airports - with unpaved runways:
total: 52
[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: 47 (2013)
[see also: Airports - with unpaved runways - under 914 m country ranks ]

Pipelines:
gas 1,536 km; oil 330 km (2015)

Railways:
total: 3,476 km
[see also: Railways - total country ranks ]
standard gauge: 3,476 km 1.435-m gauge (1,756 km electrified) (2017)
country comparison to the world: 55

Roadways:
total: 74,558 km
[see also: Roadways - total country ranks ]
paved: 74,558 km (includes 1,205 km of expressways) (2017)
[see also: Roadways - paved country ranks ]
country comparison to the world: 64

Waterways:
400 km (2010)
country comparison to the world: 87
[see also: Waterways country ranks ]

Merchant marine:
total: 654
[see also: Merchant marine - total country ranks ]
by type: bulk carrier 7, container ship 114, general cargo 77, oil tanker 75, other 381 (2017)
country comparison to the world: 31

Ports and terminals:
major seaport(s): Baltic Sea - Aarhus, Copenhagen, Fredericia, Kalundborg; North Sea - Esbjerg,
river port(s): Aalborg (Langerak)
dry bulk cargo port(s): Ensted (coal)
cruise port(s): Copenhagen