United Airlines (UA, Chicago O'Hare) has outlined the options it is considering for the replacement of its ageing B757 and B767 fleets.

The ch-aviation fleets module shows United currently operates fifty-six B757-200s (average age 21.9 years), twenty-one B757-300s (average age 15.6 years), thirty-five B767-300(ER)s (average age 22.7 years), and sixteen B767-400(ER)s (average age 16.5 years).

Senior Vice-President (Finance, Procurement and Treasurer), Gerry Laderman, said in a presentation during the JP Morgan Global High Yield & Leveraged Finance Conference that insofar as the B757s and B767s are concerned, it is looking at the B737-10, the A321neo, Boeing's New Mid-market Airplane (NMA), the B787-8, and even the A330-800 (for which there are only six known firm orders at present).

Their replacement has been deemed a near-term target suggesting studies are well advanced ahead of a possible tender.

Looking to the to the mid-long term, United has also listed its proposed A319/A320ceo and B737-700/800 renewal prospects.

There, United is considering used A319/A320ceo, A319/320neo, used B737-700/800s, B737-7/8s, E190/195-E2s, and the A220-100/300.

United operates sixty-seven A319ceo (average age 19.9 years), ninety-nine A320ceo (average age 19.7 years), forty B737-700s (average age 19 years), and 141 B737-800s (average age 14.1 years).