A319 and 737‑700 show differing weights, fuel capacity and burn on short hops

The Airbus A319 and Boeing 737‑700 are narrow‑body jets designed in the late 1990s for 120‑150 seat routes and have been operated for decades by Southwest Airlines, United Airlines and easyJet.

The A319’s operating empty weight is about 89,426 lb (40,563 kg) versus 84,100 lb (38,147 kg) for the 737‑700; its standard fuel capacity is 42,699 lb (19,367 kg) compared with the 737‑700’s 46,063 lb (20,894 kg). The maximum take‑off weight is 166,400 lb (75,478 kg) for the A319 and 154,500 lb (70,080 kg) for the 737‑700. On a 500‑nautical‑mile flight the 737‑700 burns 4,200–4,500 lb (1,905–2,041 kg) of fuel while the A319 uses 4,500–4,800 lb (2,041–2,177 kg).