United has launched a bonus offer for members converting their Marriott Rewards points into Mileage Plus miles.
Members must pre-register for the offer at united.com/rewardsplustransfer, and then convert their Marriott Rewards points into United Plus miles by March 31.
They will receive 25 per cent extra miles on conversions made during the promotional period, up to a maximum of 25,000 bonus miles.
Bonus miles will be credited by April 30, 2016.
Mark Caswell
