The Boeing 737-800 and Boeing 737-700 are both part of the Boeing 737 Next Generation (NG) family, but they differ in terms of seating capacity and overall dimensions.

Seating Capacity:

• Boeing 737-700: Typically seats around 126 to 149 passengers in a two-class configuration, with a maximum capacity of about 149 passengers in a single-class layout.
• Boeing 737-800: Generally accommodates 162 to 189 passengers in a two-class configuration, with a maximum capacity of about 189 passengers in a single-class layout.

Summary:

• The 737-800 has a higher seating capacity compared to the 737-700, making it a more suitable option for airlines looking to maximize passenger numbers on routes with higher demand.

This difference in capacity is primarily due to the 737-800 being longer than the 737-700, allowing for more seats in the cabin.