Bombardier Challenger 3500 vs Bombardier Challenger 650 vs Gulfstream G400 vs Gulfstream G500 vs Gulfstream G600

In category, the Bombardier Challenger 3500 is a super-midsize jet, while the Challenger 650 sits in the large-cabin segment. Gulfstream’s G400 is a large-cabin jet positioned below the longer-range Gulfstream family members, whereas the G500 and G600 are long-range, large-cabin aircraft, with the G600 generally regarded as the larger, higher-end step in capability and cabin volume. For range, the Challenger 3500 is optimized for transcontinental missions (roughly mid‑3,000‑nautical‑mile class), the Challenger 650 reaches farther in the roughly 4,000‑nautical‑mile class, and the Gulfstream G400 targets the mid‑4,000‑nautical‑mile class. The Gulfstream G500 and G600 extend into true long-range missions, commonly cited around the 5,000–6,000‑nautical‑mile class, with the G600 typically offering the longest reach of the group. Passenger capacity broadly scales with cabin size: the Challenger 3500 typically seats about 8–10, the Challenger 650 about 10–12, the G400 about 10–12, and the G500/G600 commonly 12–15 depending on layout.