Only a week ago they were living it up in Ibiza following a romantic break in Majorca.
But it appears that Millie Mackintosh and Professor Green couldn't bear to spend more than a few days back on British soil before jetting off again.
The pair touched down in New York yesterday, where they will celebrate Mille's 23rd birthday together.
Jet setting: Millie Mackintosh and Professor Green touched down in New York yesterday
She wore sunglasses, and appeared not to have bothered with much make-up.
Prof. Green was casual as usual in jeans, a black T-shirt with a picture of a shark on it, and a denim jacket.
Kept things casual: Make-up artist Millie appeared natural and bare-faced
Travelling light? Fashion-conscious Millie was carrying unusually little luggage for the trip
She certainly appears to have had a good birthday so far, and tweeted yesterday: 'I am the happiest girl in the world right now! Best bday ever'
'Good bye london hello NYC,' she added today.
Caught the sun: The last few months have hardly been short on getaways for Millie
Can't get enough of each other: Just a week ago Millie and Professor Green returned from trips to Majorca and Ibiza
Jealous anyone? Millie tweeted yesterday that she'd had the best birthday ever
As the friends pose for the camera, fresh-faced Caggie - dressed in a casual checked shirt - appears to be blowing cigarette smoke out of her mouth.
Meanwhile, Millie is sporting a distinctly dodgy blonde dye job on her hair and is wearing a pink spaghetti strap top and bikini, suggesting the girls could be on holiday when the snap was taken.
Embracing the summer: As ever Millie had her airport look down patPosting the cute photograph, Caggie wrote: 'memory lane! me and mac at 18.'
Millie recently admitted she was initially reluctant to join the cast of the E4 reality show, and had to persuade her pal Caggie to take part.
She told the Mail: 'I knew Rosie [Fortescue] and she was also friends with my two housemates. I came home from work one evening – I was a make-up artist/beauty adviser for Space NK – and the producers were there.
Keep up! Perhaps Millie's heels made coping with the luggage a little harder
'I mentioned Caggie Dunlop and although she was a bit reluctant they interviewed us together and we were like, “I’ll do it if you do it.”’
Excited about the trip: Professor Green looked in cheerful spirits as he got into their cab