Airlines love to give respect to their heritage by painting their aircraft in former liveries, marking how the airline used to look.
Sometimes they will paint aircraft in the livery of an airline which was merged into the current carrier, or the former name of the current carrier.
These are commonly known as “retro liveries”.
Some have sadly been lost as the standard livery is repainted back on the aircraft, or when the aircraft is scrapped or sold. And each year there seem to be new ones which appear.
Recently British Airways celebrated its 100th anniversary by painting four aircraft in former liveries.
Here is the complete list of airliner retro liveries in 2020:
Aer Lingus, EI-DVM, Airbus A320-214
Aeroflot, VP-BNT, Airbus A320-214
Air Canada, C-FZUH, Airbus A319-114 “TransCanada Air Lines”
Air Malta, 9H-AEI, Airbus A320-214 – Removed from fleet April 2020
Alaska Airlines (Horizon Air), N421QX, Bombardier DHC-8-402 Q400
American Airlines, N742PS, Airbus A319-112, “PSA Pacific Southwest Airlines”
American Airlines, N838AW, Airbus A319-132, “America West”
American Airlines, N578UW, Airbus A321-231, “US Airways”
American Airlines, N905NN, Boeing 737-823, “AstroJet”
American Airlines, N915NN, Boeing 737-823, “TWA Trans World Airlines”
American Airlines, N917NN, Boeing 737-823, “AirCal”
Austrian Airlines, OE-LBO, Airbus A320-214
British Airways, G-BNLY, Boeing 747-436, “Landor” livery
British Airways, G-BYGC, Boeing 747-436, “BOAC”
Garuda Indonesia, PK-GFN, Boeing 737-8U3, “1969-1985”
Gulf Air, A9C-FG, Boeing 787-9
Lufthansa, D-AIDV, Airbus A321-231
Lufthansa, D-ABYT, Boeing 747-830
MEA Middle East Airlines, OD-MRT, Airbus A320-232
SAS, OY-KBO, Airbus A319-131
Southwest Airlines, N711HK, Boeing 737-7H4
Remember, you can download a list of all the retro liveries to tick off your own sightings here.