Later that year Russell and Hitchcock, along with Chrissie Hammond formed Air Supply as a five-man group. The band's first single was "Love and Other Bruises."  Their follow up to that single was a self titled debut album, which reached Gold status in Australia.  They followed that with the album "The Whole Thing's Started".  "Empty Pages" and "Do What You Do" were two of the singles during this period.  The group opened for Rod Stewart throughout his Australian tour.  So impressed by their performance, Stewart extended an invitation for them to open on his American tour. .

After Stewarts American tour, Air Supply released the album "Love and Other Bruises", which included re-recordings of many of their earliest hits.  Despite their success, they found themselves checking the backs of hotel sofas for change, in order to have money to eat.

In 1978, Hitchcock and Russell made a  fresh start with 5 new members.  Those members went on to record almost all of the bands hit records.  The new members included Frank Esler-Smith (arranger/keyboardist), David Moyse and Rex Goh (guitars) and the rhythm section of Ralph Cooper on drums and David Green on bass.

Life Support, a concept album,. was released in 1979.  It included a picture disc on the first of its printing. Produced by Charles Fisher, it was recorded in the very small Trafalgar Studios in Sydney.  It was on this album that American audiences were first introduced to a five-and-a-half minute version of Lost in Love.  Written by Graham Russell in fifteen minutes, Lost in Love caught the Clive Davis, music mogul.  It was then that Davis's record label Arista remixed the song, then releasing it as a single in the United States.

American audiences were first introduced to Air Supply's music in 1980, with the release of their album Lost In Love.  That album produced three US Top Five singles, including the title track, "Every Woman In The World", and "All Out of Love" (sample).  Three more hit albums quickly followed, The One That You Love, Now and Forever, and Greatest Hits.

In 1983 they had a #2 hit in the U.S. with "Making Love Out of Nothing at All", written by Jim Steinman.  They also released their first live video that year, "Air Supply Live in Hawaii", a video that can be found occasionally from collector's shops or on eBay. During the mid-1980s they also hit Billboard charts with "Just as I Am", "The Power of Love", "Lonely Is The Night", and "One More Chance". Hitchcock and Russell recorded a Christmas album in 1987 before taking a break with studio recordings, opting instead to tour live. During this time, Russell Hitchcock released a self-titled debut album.

In 1991 the duo again entered the studio, recording The Earth Is, which included their hit single "Without You", along with singles for "Stronger Than the Night" (with a music video that announced Air Supply wase back) and "Stop the Tears".  "The Earth Is World Tour" video was released by the official fan club.  This video is a rare collector's item containing live footage from throughout the bands world tour.

The album was followed up with The Vanishing Race in 1993, supported by the hit single "Goodbye" which, was not popular in the United States, but gained a large following outside the country and lead to another world tour.  The album's title was in honor of the plight of the American Indians and their struggles as the "vanishing race". 

News from Nowhere, their third album of the decade, was released in 1995.  New from Nowhere contained the Asian hit singles "Someone" and "Always".  This album also included a cover of "Unchained Melody", previously made famous by Bobby Hatfield of The Righteous Brothers fame.

During this period they gained popularity in south-eastern Asian countries, culminating in the release of Now and Forever: Greatest Hits Live, a CD and DVD recording of a live concert in Taipei, Taiwan, also in 1995.  This CD/DVD stayed at the top of the Chinese album charts for 16 weeks.

They continued to tour and record into the new millennium, which included the release of the more adult contemporary titled The Book of Love (1997), Yours Truly (2001), and Across the Concrete Sky (2003). They released another live CD/DVD recording in 1995, It Was Thirty Years Ago Today, recorded at the Casino Rama in Canada.

In July 2005 they were invited and performed in Havana, Cuba, being one of the first foreign bands invited to perform in that country.  Booked to perform two concerts, they played the first show on July 7th, the day before Hurricane Dennis hit the island. Even in high winds, their first concert had an audience of 175,000. Due to Hurricane Dennis they could not play the second show. Fans staying at the same hotel as Air Supply were treated to an acoustic performance by Graham, made necessary due to the power outage.

Air Supply released an acoustic album in 2006, "The Singer and the Song", and are preparing for the release of their first studio album in three years, "Zed". In support of the acoustic album they visited India, for the first time, in May, 2006.