Into the Wild (highly recommended)

Million Yuan and Bitter Worm Girl (starring Japanese Yuu Aoi)

Motorcycle Diary (not for two? It's about Che Guevara's travels when he was young)

Survival in the wilderness (this is also a modern version of Robinson Crusoe starring Tom Hanks)

Food, Prayer and Love (starring Julia Roberts in the novel adaptation)

Mr. Bean's golden holiday (it was originally funny that Bean came alone with a woman and a little boy)

Dear Galileo (Thailand's trip to Europe)

Lost in Tokyo (two people met in Tokyo)

Etude (Taiwan Province)

Love holiday (this is also a house exchange). Before dawn (this is good, and the sequel loves after sunset)

127 hours (this is not called traveling, it's like taking a personal adventure)

The art of traveling (it's a one-person trip)

Julie and Danny (also known as a trip for two people in a German movie in July)

A paradise for wrist cutters (this is also quite interesting)

Crossing Darjeeling. Xin)

vicky cristina barcelona (two good friends go to Barcelona)

Kijiro's summer (Japanese uncle helps shota find his mother, which feels very similar to Grand Central Station)

Grand Central Station (Brazil)

Some of them are not for one person, but they are all very good movies. I hope you like them.