Lindsay Lohan's Sister -- Modeling Agent Ships Ali Lohan Off to KOREA

Let's hope Lindsay Lohan's little sister likes to chow down on things like kimchi and bibimbap ... because her modeling agency just sent her 6,000 miles away to go find work in ... KOREA!

According to our sources ... 18-year-old Ali Lohan will spend the next 30 days or so living in Korea (South, not North) with a group of 3-4 other Americans in a "model house" as they all try to book gigs in the Asian market.

Sources close to Lohan tell TMZ ... Ali had no issues with peacing out of the U.S. for a few weeks -- she'll now be an entire ocean away from Dina -- and told friends she'll keep in touch via Skype.

Her family said goodbye last week with a sendoff dinner in NYC (below) ... but LiLo couldn't make it because she's too busy shooting "The Canyons" with that porn star guy.