In the 1940s

Aerial view approx. 1943-1945 - Viewing direction west. (Source: US DoD)

Approach chart July 1945 (Source: US DoD)

Aerodrome chart July 1945 - There are three runways with concrete surface - 001/181: length 1199 m, width 49 m (3935 feet x 162 feet), 046/226: length 1396 m, width 49 m (4580 feet x 162 feet), 136/316: length 1199 m, width 49 m (3935 feet x 162 feet). (Source: US DoD)
In the 1950s

ILS approach runway 23 (February 1952) - The map also shows Amadora Airfield, which is closed today, and three water aerodromes (anchor symbol): Lisbon-Cabo Ruivo (Aeroporto Marítimo de Cabo Ruivo) east of Lisbon Airport near the Beirolas radio beacon, Montijo southeast of the airport and Belém in the southwest. (Source: US DoD)

ILS final approach (February 1952)

ILS approach runway 23 (February 1954) (Source: US DoD)

ILS final approach (February 1954) (Source: US DoD)

NDB approach (April 1954) (Source: US DoD)

Airport map (April 1954) - There are four runways: 05/23 with 2080 m x 50 m (6824 feet x 164 feet), 09/27 with 1020 m x 50 m (3347 feet x 164 feet), 14/32 with 1300 m x 50 m (4265 feet x 164 feet), 18/36 with 2000 m x 50 m (6562 feet x 164 feet). There is a Eureka radio beacon, ILS and SBA (Standard Beam Approach) are listed as approach aids. On the west side there is a writing "LISBOA - PORTELA". (Source: US DoD)
In the 1960s

Range approach runway 23 (October 1960) (Source: US DoD)

ILS approach runway 23 (October 1960) (Source: US DoD)

ILS approach runway 21 (May 1966) - There are two runways: 03/21 with 3805 m x 45 m (12483 feet x 147 feet), 18/36 with 2400 m x 45 m (7874 feet x 148 feet). (Source: US DoD)
In the 1970s

Satellite image 12 May 1979 (Source: U.S. Geological Survey)
In the 1990s

Lisbon Portela Airport on a map of the US Department of Defense from 1991 (Source: TPC G-1A (1991), Perry-Castañeda Library Map Collection, University of Texas at Austin)
Index to the objects shown on the maps
Aerodromes / Aeródromos:
- Alcochete, Alverca, Amadora
- Belém
- Cascais
- Lissabon Cabo Ruivo, Lissabon Portela
- Monte da Saude, Montijo
- Porto Alto
- Sintra
Airspace / Espaço aéreo:
- PO-R 7, PO-R 9A, PO-R 9B
- PO-D 10
Radio beacons / Radiofarol:
- Alverca NDB "AR"
- Barcarena NDB "LS"
- Beirolas NDB "LB"
- Caparica NDB "CP"
- Coruche NDB "CR"
- Lisboa Range "PL", NDB "LAR", Locator "OL", Locator "L", Locator "LM", Locator "LO". ILS "LB", Outer Marker, Middle Marker, Inner Marker
Air traffic control / Controlo do Tráfego Aéreo
- Lisbon Approach, Lisbon Tower
Source for all maps, if not marked otherwise: US Department of Defense (US DoD)
Titelbild: Lisbon Airport. Source: ETH-Bibliothek Zürich, Bildarchiv / Fotograf: Unbekannt / Hs_1002-0009-273, License CC BY-SA 4.0