Usually, when you travel locally, you need your valid identification card. An example would be your drivers license. You might also need your passport if you travel by air.
You do not need any special documents to travel by train in Switzerland. You do need a ticket of course!
For a citizen of the US, no passport is required, because Puerto Rico is a Commonwealth of the US.
I have vacationed in the Dominican Republic, and the only document I had to have was my passport.
Travel documents are passports, identity documents, and VISAS (if necessary).
No documents are required other than passport and boarding card for stop-over airports.
No. Passports are not required for domestic travel within the UK.
If one is already an Australian citizen there are no special documents required for internal travel. The only time documentation would be required is if one is not an Australian citizen and is entering Australia from elsewhere. In these circumstances a visa can be easily obtained for UK residents by submitting a valid passport.
He will need a US Passport and a notarized permit allowing him to travel if one parent is not going with him.
Domestic airlines are local airlines and generally they only fly in local airspace (as opposed to international and intercontinental)
International flights do cost more than domestic flights. This is because of the distance required in travel and local fees required to be paid.
How old does a child have to be to travel solo on a domestic flight?
Domestic travel just means traveling to a destination, and not leaving the country that you started in. Examples of domestic travel would be Chicago to Los Angeles, or New York to Houston.