OREANDA-NEWS. United Airlines announced a month-long special offer giving members of the airline's MileagePlus loyalty program the opportunity to earn unlimited double-award miles on United and United Express flight segments.

Members may earn double miles for certain fare classes when they book between Oct. 21 and Nov. 21, 2013, for travel within the U.S. - excluding Alaska and Hawaii. The offer includes domestic segments within international itineraries. To earn double miles, MileagePlus members must also register for the promotion and complete their travel between Oct. 21 and Nov. 21.

"This member-friendly promotion gives us another opportunity to reward our MileagePlus members for their commitment to flying with us," said Praveen Sharma, United's vice president of loyalty. "It's a great opportunity for MileagePlus members to earn twice the miles during the busy fall travel season."