Travolta admitted that he was constantly thinking about his actress partner, who is due to give birth on 26 November (10) - and revealed he was ready to end his 10-day tour to be in the delivery room to welcome his son, who they will name Benjamin.
He said, "When I left, she was having what they call Braxton Hicks, the fake labour, and we were both a little worried... I'm ready to go at any minute, if she started having labour now we would leave and take 22 hours to get home, but I'll get there."
And Travolta has kept true to his word - he jetted back to the U.S. from Down Under earlier this weekend (13-14Nov10) after Preston went into labour.
An airline spokesperson tells the AFP, "He's on the way back to the States because his wife's gone into labour. His priority was always obviously his wife's pregnancy and we completely respect that."
The couple has a daughter named Ella Bleu, 10. The Travoltas lost their 16-year-old son Jett after he suffered a fatal seizure at their holiday home in the Bahamas in January, 2009.