Chicago - United Airlines has announced that it expects to begin commercial operations with 737 MAX 9 during the second quarter of 2018.

After the US Federal Aviation Administration's (FAA) approval for type certificate earlier this week, United Airlines said it expected to begin scheduled flights with 737 MAX 9 on June 7.

The aircraft will be deployed on routes with flights from its Houston hub to Anchorage Ted Stevens, Austin Bergstrom, Fort Lauderdale, Orlando, and San Diego.

These routes will be followed later by flights from Houston to Los Angeles, Tampa, and Sacramento as well as from Los Angeles to Honolulu on June 29.

The United's MAX 9s will accommodate 179 passengers including 20 United First Seats in a 2-2 configuration, 48 in Economy Plus in a 3-3 configuration, and 111 United Economy seats in a 3-3 configuration.

By the end of this year, United will add ten B737 MAX 9s to its fleet. The Chicago-based carrier has 135 B737 MAX in Boeing's backlog, of which 100 are B737 MAX 10s to be delivered from 2020 onwards.

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