TAP Express (Transportes Aéreos Portugueses or TAP for short) is a Portuguese regional airline brand name for TAP Portugal which operate short- and medium-haul routes. TAP Portugal's lone wholly owned regional airline, Portugália Airlines, resides under the TAP Express banner. White Airways, an airline owned by Omni Aviation, also operates regular flights for TAP Express using 8 ATR 72 regional jets.

Its head office is on the grounds of Lisbon Portela Airport in Lisbon. Mainline carriers often use regional airlines to operate services in order to increase frequency, serve routes that would not sustain larger aircraft, or for other competitive reasons.

On 14 January 2016, TAP Portugal announced that Portugália, its regional subsidiary, would be rebranded as TAP Express as of 27 March 2016, as part of the restructuring measures within the group, even though the company still operates as a wholly owned company of TAP Portugal.

On the same day, TAP Portugal also announced that the entire Portugália fleet consisting of Fokker 100 and Embraer ERJ-145 would be replaced by July 2016 with new Embraer 190 and ATR 72-600 aircraft (the latter operated by White Airways) which will receive a livery similar to that of TAP Portugal.

As of January 2017, the TAP Express fleet includes the following aircraft:

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