National air transport system:
number of registered air carriers: 15
inventory of registered aircraft operated by air carriers: 228
annual passenger traffic on registered air carriers: 15,003,958
annual freight traffic on registered air carriers: 107,184,869 mt-km (2015)

Civil aircraft registration country code prefix:
EP (2016)

Airports:
319 (2013)
country comparison to the world: 22
[see also: Airports country ranks ]

Airports - with paved runways:
total: 140
[see also: Airports - with paved runways - total country ranks ]
over 3,047 m: 42
[see also: Airports - with paved runways - over 3,047 m country ranks ]
2,438 to 3,047 m: 29
[see also: Airports - with paved runways - 2,438 to 3,047 m country ranks ]
1,524 to 2,437 m: 26
[see also: Airports - with paved runways - 1,524 to 2,437 m country ranks ]
914 to 1,523 m: 36
[see also: Airports - with paved runways - 914 to 1,523 m country ranks ]
under 914 m: 7 (2017)
[see also: Airports - with paved runways - under 914 m country ranks ]

Airports - with unpaved runways:
total: 179
[see also: Airports - with unpaved runways - total country ranks ]
over 3,047 m: 1
[see also: Airports - with unpaved runways - over 3,047 m country ranks ]
2,438 to 3,047 m: 2
[see also: Airports - with unpaved runways - 2,438 to 3,047 m country ranks ]
1,524 to 2,437 m: 9
[see also: Airports - with unpaved runways - 1,524 to 2,437 m country ranks ]
914 to 1,523 m: 135
[see also: Airports - with unpaved runways - 914 to 1,523 m country ranks ]
under 914 m: 32 (2013)
[see also: Airports - with unpaved runways - under 914 m country ranks ]

Heliports:
26 (2013)
[see also: Heliports country ranks ]

Pipelines:
condensate 7 km; condensate/gas 973 km; gas 20,794 km; liquid petroleum gas 570 km; oil 8,625 km; refined products 7,937 km (2013)

Railways:
total: 8,483.5 km
[see also: Railways - total country ranks ]
broad gauge: 94 km 1.676-m gauge
standard gauge: 8,389.5 km 1.435-m gauge (189.5 km electrified) (2014)
country comparison to the world: 25

Roadways:
total: 198,866 km
[see also: Roadways - total country ranks ]
paved: 160,366 km (includes 1,948 km of expressways)
[see also: Roadways - paved country ranks ]
unpaved: 38,500 km (2010)
[see also: Roadways - unpaved country ranks ]
country comparison to the world: 27

Waterways:
850 km (on Karun River; some navigation on Lake Urmia) (2012)
country comparison to the world: 69
[see also: Waterways country ranks ]

Merchant marine:
total: 739
[see also: Merchant marine - total country ranks ]
by type: bulk carrier 32, container ship 28, general cargo 340, oil tanker 26, other 313 (2017)
country comparison to the world: 30

Ports and terminals:
major seaport(s): Bandar-e Asaluyeh, Bandar Abbas, Bandar Emam
container port(s) (TEUs): Bandar Abbas (2,752,460)