id

[Miss Pink]

If you are flying from San Francisco to germany is a passport all you need or do you need to show another form of id?

[dzug]

That's all you need apart from a ticket.

Depending on your nationality you may need a visa in your passport.

The only other thing I can think of is if you pick your tickets up at the airport you may need to produce the credit card that was used to pay for them.