If you were captivated by the way Cities In Flight follows humanity's saga across millennia and interstellar distances, you'll be enthralled by Foundation. Asimov's masterpiece traces the rise and fall of galactic empires, with Hari Seldon's psychohistory guiding events on a timeline as epic and sweeping as Blish's flying cities.

If the scientific underpinnings and plausible futuristic technology in Cities In Flight drew you in, Tau Zero will be a treat. Anderson's novel rigorously explores the physics of near-light-speed travel, as the starship Leonora Christine hurtles toward the edge of time and space, grounding its cosmic adventure in real science.

If you enjoyed the imaginative depiction of new societies and cultures among the stars in Cities In Flight, you'll love The Left Hand of Darkness. Le Guin immerses you in the world of Gethen, where gender and society are unlike anything on Earth, and envoy Genly Ai must navigate the complexities of an alien world as profound as any flying city.

If you appreciated the way Cities In Flight grapples with big ideas—like the fate of civilizations and what progress means—The Dispossessed will engage your mind and heart. Follow physicist Shevek as he challenges the boundaries between two very different worlds, raising enduring questions about utopia, society, and the individual's place in history.

If the meticulous worldbuilding and the sense of a living, breathing universe in Cities In Flight thrilled you, Dune is a must-read. Herbert's novel transports you to the planet Arrakis, with its detailed cultures, politics, and ecology, creating a setting as immersive and expansive as Blish’s migratory cities.