By Amelia Proud and Eleanor Gower
They have endured months of scandal and speculation about their relationship following Kristen Stewart's fling with married director Rupert Sanders.
But it seems the 22-year-old actress has put the final seal on her reconciliation with Robert Pattinson.
According to reports, the couple spent Thanksgiving in London together with the British actor's family and the pair were spotted jetting into New York's JFK airport on Friday.
Stewart sported black rimmed glasses and wore her brown hair pulled into a high ponytail as she carried a shoulder bag through the terminal.
Like her boyfriend, she wore jeans and trainers and completed her casual look with a grey wool cardigan under a black blazer.
Perhaps wanting to stay incognito, Pattinson kept his sunglasses firmly on, even after the couple stepped out in the dark evening to their waiting vehicle.
One excited fan tweeted: 'Look who’s on my plane!!! Robert Pattinson and Kristen Stewart!! We just arrived at the same time they were behind me in the line!”
Another fan claimed her mother had been working as an air hostess, looking after the pair on the flight.
'She's just told me apparently R Patz so lovely chatted whole flight. Kristen slept most of it,' the fan tweeted.
The trip to London came after it was revealed 26-year-old Robert’s older sisters Lizzy and Victoria have finally forgiven Kristen for cheating on their brother with Sanders, who directed the actress in the film Snow White & The Huntsman, which was released back in May this year.
A source said: 'It was really important for Kristen to win back the love and trust of Rob's family, and she has done just that.
'They are all back on really good terms - even better than before. Kristen reached out to Rob's sisters and expressed how sorry she was.
'They are proud of how far she has come and they know she has been treating their brother like gold.'
The pair have been busy promoting the last Twilight film Breaking Dawn Part 2, and were pictured enjoying a trip ten pin bowling together after attending the Berlin premiere of the film last week.
The Twilight trio kicked off a week-long of premieres last Monday, starting off in Los Angeles.
Stewart, Pattinson and co-star Taylor Lautner then headed across the Atlantic for Wednesday's London opening, before taking to the red carpet in Madrid on Thursday.
It has been an exhausting schedule, punctuated by TV appearances, and more public scrutiny on the couple's relationship status following her cheating scandal.