The opening song is sung by Don McLean.
In an age of medieval fantasy populated by fantastic creatures, the Green Wizard Carolinus, who presides over nature, notices that magic is fading from the world as humanity embraces logic and science instead. Summoning his three magical brothers, he proposes combining their powers to create a "last realm of magic" hidden from the rest of the world. The Blue Wizard Solarius, who commands the heavens and seas, and the Yellow Wizard Lo Tae Zhao, whose realm is light and air, agree to the proposal. However, the Red Wizard Ommadon, master of black magic and the forces of evil, resolves instead to infect mankind with fear and greed, causing humans to use their science to destroy themselves.
Since the wizards are forbidden to fight among themselves, Carolinus proposes sending a group of heroes on a quest to steal Ommadon's crown, which is the source of his power. The party includes the knight Sir Orrin Neville-Smythe and Carolinus' young dragon companion Gorbash. Solarius gives them an enchanted shield which can deflect dark magic, and Lo Tae Zhao contributes a magic flute which lulls dragons to sleep. Requiring a leader, Carolinus consults the magical force of Antiquity, which directs him to look 1,000 years into the future to find a man of science descended from a legendary hero. In late 20th century Boston Carolinus locates Peter Dickinson, a former scientist turned board game designer who is obsessed with dragons. Carolinus brings Peter back through time and enlists him in the quest, and Peter becomes enamored of Carolinus' ward, Princess Milisande. Ommadon sends his dragon Bryagh to capture Peter, and an accident with one of Carolinus' spells while rescuing him causes Peter to merge with Gorbash, Peter's mind taking over the dragon's body.
Knowing nothing about being a dragon, Peter is mentored by Carolinus' elder dragon companion, Smrgol. The dichotomy of magic and science is explored when Smrgol teaches Peter how dragons fly and breathe fire, abilities which Peter is able to explain with scientific principles. As the quest progresses, the heroes survive an attack by the ugly Sand Murks and are joined by the talking wolf Aragh, the archer Danielle, and the elf Giles. As the party nears Ommadon's realm, Danielle and Sir Orrin are captured by an ogre. Peter is nearly killed attempting to rescue them but is saved by Smrgol, who defeats the ogre at the cost of his own life. In the Red Wizard's realm the party faces the Worm of Sligoff, which Peter destroys by igniting the sulfuric acid it excretes. Ommadon casts a spell to induce hopelessness in the group, which Peter repels using Solarius' shield. Ommadon next sends numerous dragons to kill the heroes, but Giles plays Lo Tae Zhao's enchanted flute, lulling them and Peter to sleep. Bryagh remains awake and kills Giles, Aragh, and Danielle. Sir Orrin slays Bryagh, but dies from his wounds.
When Ommadon appears on the battlefield, Peter manages to separate himself from Gorbash by recalling the principle of impenetrability. He is able to defeat Ommadon by countering the wizard's declarations of magic with explanations of science and logic, and denying the existence of magic. This destroys Ommadon, restores the other heroes to life, and allows the magical realm to take shape. Peter, having denied all magic, is separated forever from this realm, but not before awakening Milisande with a kiss and leaving her Ommadon's crown. Having fallen in love with Peter, Milisande begs Carolinus to allow her to join him. Back in 20th century Boston, Peter is selling the magic flute and shield to a pawnbroker when Milisande enters the shop carrying the crown, and the two embrace.Victor Buono as Aragh the wolf
James Gregory as the dragons Smrgol and Bryagh
James Earl Jones as Ommadon, the Red Wizard
Harry Morgan as Carolinus, the Green Wizard
John Ritter as Peter Dickinson
Larry Storch as the pawnbroker
Don Messick as Lo Tae Zhao, the Golden Wizard and Giles, the elf
Bob McFadden as the dragon Gorbash and as the knight Sir Orrin Neville-Smythe
Alexandra Stoddart as the Princess Milisande
Nellie Bellflower as Danielle the archer
Paul Frees in uncredited roles as Solarius, the Blue Wizard and as the voice of Antiquity
Additional character voices were provided by Ed Peck and Jack Lester.
Filmsy.com said of the film, "Animated fantasy films geared for family viewing just aren’t made like this anymore... The voice acting in this movie is excellent, to say the least... Though the animation might seem a bit 'dated', it remains beautiful by 1982 standards". "The dialogue is surprisingly intelligent and may confuse some children but it is nice to see an animated film that will stimulate adult minds a little... The voice cast are all great and I can’t find a single fault with any of them", said blogcritic.org. The Unknown Movies said "There may not be a strong constant thread in The Flight of Dragons, but all its moments of warmth, imagination, and interest combine to make magic."
Other reviews were less positive: "I'm sure fans of The Flight of Dragons, sick of looking at crappy downloads or worn VHS copies, will be satisfied with what's here, but if you didn't grow up with this one, it's best left alone."
Various VHS editions of the film have been released since its debut in 1982. There was also a LaserDisc release from which some VHS copies were produced. The LaserDisc release was made by PolyGram Video, there was also a Betamax release. A DVD was released (available only in the U.S.) under the Warner Archive brand on November 17, 2009.
The original score was composed by Maury Laws. The film's theme song, also entitled "The Flight of Dragons", was written and composed by Jules Bass and Maury Laws, and performed by Don McLean. An official soundtrack was never released. However, multi Emmy Award-winning film and television composer Carl Johnson did recreate several tracks from the animation for the live-action adaptation. Though the film was put on hiatus, 3 of the completed tracks were released online.
In September 2012, an official live action film was announced. Now canceled, a production team was set to work on the project for a 2015 release date, including contributions from Maury Laws, Chris Achilleos, and Wayne Anderson. The film was loosely based on The Dragon Knight by Gordon R. Dickson. Presently, all efforts have been diverted to a new film project, The Dragon Prince, directed by Jesse Stipek and written by The Last Unicorn producer Michael Chase Walker.