The pair was seen waiting for a taxi outside Heathrow Airport after flying into London, England. Delevingne, 26, sported a tan jacket and braided hairstyle, while 28-year-old Benson wore a jean jacket and white T-shirt. The former Pretty Little Liars star also donned black sunglasses and a necklace with the letter "C" on it. Benson and Delevingne opted to use a red Supreme x RIMOWA suitcase to hold their items.
Delevingne's arm was wrapped around her rumored girlfriend, who was leaning into the model's shoulder, before Benson leaned up to steal a smooch.
Last week, an eyewitness spotted the pair celebrating Delevingne's birthday at Sofitel LA Riviera 31’s Salsa Nights in Los Angeles, California
"Cara and Ashley were enjoying each other’s company, sitting closely together at a front row table by the dance floor. When the two weren’t sitting, they were intimately dancing with each other and laughing throughout the night," the source tells ET. "Cake and ice cream with candles were brought out for Cara as everyone in the lounge sang her 'Happy Birthday.'"
Cara Delevingne attends the 'Remember Me' film premiere at the Odeon Leicester Square on March 17, 2010 in London, England. (Photo by Jon Furniss/WireImage)
LONDON, UNITED KINGDOM - NOVEMBER 25: Cara Delevingne attends the first anniversary of Alice By Temperley at Paradise by Way of Kensal Green on November 25, 2010 in London, England. (Photo by Nick Harvey/WireImage)
LONDON, ENGLAND - NOVEMBER 29: Models Poppy Delevingne (R) and sister Cara Delevingne attend the 'Sex And The City 2' DVD Launch Party at the Swarovski Crystallized Lounge on November 29, 2010 in London, England. (Photo by Jon Furniss/WireImage)
LONDON, ENGLAND - JUNE 28: Cara Delevingne attends the summer party at The Serpentine Gallery on June 28, 2011 in London, England. (Photo by Mike Marsland/WireImage)
LONDON, ENGLAND - NOVEMBER 21: Cara Delevingne attends Tiffany & Co. Presents Skate at Somerset House on November 21, 2011 in London, England. (Photo by Nick Harvey/WireImage)
NEW YORK, NY - NOVEMBER 07: VS model Cara Delevingne walks the runway during the 2012 Victoria's Secret Fashion Show at the Lexington Avenue Armory on November 7, 2012 in New York City. (Photo by Randy Brooke/WireImage)
LONDON, ENGLAND - FEBRUARY 16: Cara Delevingne walks the runway at the Issa London show during London Fashion Week Fall/Winter 2013/14 at Somerset House on February 16, 2013 in London, England. (Photo by Mike Marsland/WireImage)
Cara Delevingne arriving for the Burberry Prorsum womenswear catwalk show at Kensington Gardens, as part of London Fashion Week.
Cara Delevingne arriving at the 2015 MTV Movie Awards, Nokia Live, Los Angeles.
Cara Delevingne arrives for the presentation of the Burberry collection during London Fashion Week Spring/Summer 2017 in London, Britain, September 19, 2016. REUTERS/Luke MacGregor
Cara Delevingne poses for photographers at the Chanel "Mademoiselle Prive" exhibition, in London, Britain, October 12, 2015. REUTERS/Peter Nicholls
NEW YORK, NY - AUGUST 01: Actress Cara Delevingne attends the world premiere of 'Suicide Squad' at The Beacon Theatre on August 1, 2016 in New York City. (Photo by Noam Galai/Getty Images)