
737-700: A shorter version with lower capacity, still used by airlines like Southwest.
737-800: The most widely flown 737 variant globally— its reliable, efficient, and familiar.
737-900: Stretched version with more seating, though less popular than the -800. This is the last of the older generation of aircraft still in circulation
737 MAX 7: Smallest of the newer MAX model with long range and but niche usage.
737 MAX 8: Most common MAX variant, replacing the -800 in many fleets.
737 MAX 9: Offers higher capacity than the MAX 8.
747-400 – Retired from most passenger fleets, still used in cargo. A few asian carriers still utilize this variant for needed "backup".
747-8i – More commonly used passenger version still flown by Lufthansa, Korean Air, and Air China of their flagship routes (e.g New York to Frankfurt).
757-200 – Most common version, popular for US carriers.
757-300 – Longer version, fewer in service (mainly Delta and United).
767-300ER: The most common version flying today, offering extended range. Flown by Delta, United, LATAM, ANA, and more.
767-400ER: A longer variant with updated avionics and winglets. Operated only by Delta and United.
777-200: The original mid-90s model, now rarely seen in active service.
777-200ER / 200LR: Extended-range variants. The 200ER is still in regular use; the ultra-long-range 200LR is less common.
777-300: Stretched version with limited usage today.
777-300ER: The most successful variant, heavily used for long-haul international routes by ANA, Singapore Airlines, Cathay Pacific, and Air France.
787-8: Shorter variant with long range and fewer seats.
787-9: The most common version, balancing range and seating capacity.
787-10: Largest model, fitting more passengers but with slightly less range.