I'll be flying from Sweden to Germany, and back, so within the Schengen area. Only problem is that the only form of ID I have is an expired national identity card from Sweden. I am a Swedish citizen.
Will this be a problem? Will I not be allowed to pass through security or board the plane? Would getting a temporary passport help?
Airlines use the Timatic database to assess what documents a passenger must produce in order to board. There are several public portals to Timatic; this answer used this one.
Germany > Sweden:
Here's Timatic's report for this flight:
Thus, you must show either a passport, Swedish national ID card, or a Swedish termporary passport...and that doc must be valid on arrival. With only an expired Swedish ID card, the airline is likely to refuse to board you.
Sweden > Germany:
For a Swedish citizen, this is almost same. Here's the screenshot:
The difference is that for this flight, no "temporary passport" method is listed.
