Lindsay Lohan Bails On EuroTrip -- Thanks to Oprah

Oprah just spoke about her talk with Lindsay on "Good Morning America." Oprah said she warned Lindsay not to go to Europe because "it's very hard to not go to Capri and not have a Bellini."

Lindsay Lohan will NOT be going to Europe for a 3-week vacation like she planned ... because Oprah convinced Lindsay she'd relapse if she went, TMZ has learned.

TMZ broke the story ... Lindsay booked a one-way ticket to Europe while she was still in treatment, planning to reward her successful rehab stint with a lengthy vacation in the Old World.

Lindsay's flight was scheduled to take off tonight in New York -- with no return date set -- but sources close to Lindsay tell us, the actress just pulled the plug on the trip.

We're told Oprah -- who struck a deal with Lindsay to do a post-rehab docuseries later this month -- told Lindsay she should avoid the vacation so soon after rehab because the temptation to relapse would be too great.

We're told Oprah called Lindsay multiple times over the past 24 hours to convince her to stay put ... and Lindsay bought it, believing she needs to focus on her sobriety right now -- not jetsetting around the world. Impressive.

Also, Oprah was out signing autographs today and talked about her time with LiLo ...