United Airlines

United Airlines provides flights from Oklahoma to Denver with the minimum price per 1 adult round-trip ticket of $148, Chicago with the minimum price per 1 adult round-trip ticket of $541, Houston with the minimum price per 1 adult round-trip ticket of $402, Newark with the minimum price per 1 adult round-trip ticket of $416, San Francisco with the minimum price per 1 adult round-trip ticket of $493, Washington with the minimum price per 1 adult round-trip ticket of $696. The prices for tickets were taken from the official website and are indicated for October-December 2018.

Phone numberUnited Airlines: +1-800-864-8331

Website: https://www.united.com/en/us/