Upvote:4
The official foreign office site contains the correct information.
As long as you do not leave an airport’s international transit area, the Ordinance does not apply. No test will therefore be required.
Section 2 Definitions
For the purposes of this Ordinance
- ʻentryʼ
means crossing the border into the Federal Republic of Germany from abroad by land, sea or air; where a carrier is used for entry, the first planned arrival providing the opportunity to disembark in the Federal Republic of Germany; transferring in an airport’s international transit area in order to continue a journey from a third country to another third country is not deemed to constitute entry;...
Note:
In order to change to another flight within the Schengen Area, you must leave the airport’s international transit area.
Airport transit (non-Schengen travels) (as of 2021-05-12)
Changing flights without leaving the international transit area of an airport does not constitute an entry into Germany for the purposes of the relevant regulation (Einreiseverordnung). In these cases the digital entry registration, requirements for mandatory testing or providing proof of vaccination, quarantine regulations and travel bans from countries affected by coronavirus variants do not apply. This only affects travels from a destination outside the Schengen area and with a destination outside Schengen area – for example from Moscow (outside Schengen) via Frankfurt (transit) to Buenos Aires (outside Schengen).
When travelling from or to the Schengen area you will need to leave the international transit area of an airport – for example when travelling from Moscow (outside Schengen) via Frankfurt (transit) to Madrid (Schengen area) or the other way. Therefore these travels do constitute an entry to Germany and the requirements detailed above on entry registration, requirements for mandatory testing or providing proof of vaccination, quarantine regulations and travel bans from countries affected by coronavirus variants must be observed.
Sources: