You should call the airline to see what they will accept. However, to my knowledge, you must have a valid picture ID to board the aircraft. If you have a valid passport, I'm thinking that should suffice. Call the airline.
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Is this an immigration question?
(213) 394-4554 x0 Mr. Shusterman is a former INS Trial Attorney (1976-82) with over 35 years of immigration experience. His response to your question is general in nature, as not all the facts are known to him. You should retain an attorney experienced in immigration law to review all the facts in your case in order to receive advice specific to your case. Mr. Shusterman's statement above does not create an attorney/client relationship.
An unexpired passport may be good enough. For more information on what is required as identification for travel, go to www.tsa.gov. Good luck.
This is general information, not legal advice, and does not create an attorney client relationship.