What does a U.S. citizen need to return to the U.S. from Canada?
What does a U.S. citizen need to return to the U.S. from Canada? All U.S. citizens need U.S. passport books if re-entering by air. Land and sea border crossings accept additional travel documents, such as U.S. Passport cards and Trusted Traveler cards. Child travelers have additional options - see the Traveling with Children section.
Are US citizens required to fill out Form I 94 when returning to the US?
A Form I-94 is needed by all visitors except: U.S. Citizens, returning resident aliens, aliens with immigrant visas, and most Canadian citizens visiting or in transit.