yes. There is no law saying you need identification to board a plane. granted it will take you a few minutes longer to get through security..
Passport is a requisit.
No you do not need a passport to travel from the us to puerto rico. you do need a visa.
If that travel document is a passport then yes you can. Without passport it wont be possible
I suggest you go to the US embassy wherever you are with your original passport and talk to them. This time of year here in the US it can take 6-8 weeks to get a passport.
No if she has a passport she could travel anywhere without a USA passport
Yes any passport will do.
No. but to travel out or into the country they do.
Green card holder can travel within US states.As a U. S permanent resident you do not need a visa to visit Mexico. At the border or on the airplane you can get a tourist card good for up to 180 days. If you are going to FLY to Mexico you DO need a passport. You must use your passport from your home country since you cannot get an American passport until you become an American citizen.
The right to travel with a US passport is one benefit of being a citizen of the US. US citizens need a passport to travel to other countries.
Practically, it is safe to travel with a legitimate, valid passport of your country. If you are a dual passport holder then you use the particular passport for that country and the other passport for the other country. like if you are travelling to US then use US passport if you are travelling Canada use your Canadian passport.
If you are a US citizen, you will need both a valid US passport and an Australian ETA visa to travel to Australia.
No.