United Continental (UAL) - Get United Airlines Holdings, Inc. Report is expected to announce on Monday that it is unveiling a larger summer schedule by adding new routes from five hubs to 13 mid-sized cities, the Wall Street Journal reports. The move is designed to bring in more customers.

The company is also expected to increase the number of flights on 15 of its existing routes, while also offering year-round service daily flights to four locations that had previously been seasonal.

The changes are said to be going into effect in June, the Journal added.

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