United Mileage Plus is offering Diners Club card members a 30-percent bonus for all Club Rewards points converted into Mileage Plus miles before Jan. 15. You’ll earn 1,300 Mileage Plus miles for every 2,000 Club Rewards points you transfer. With a transfer of 40,000 Club Rewards points, you will receive 26,000 miles — enough for a roundtrip domestic Saver Award ticket on United.

To redeem your points, call (800) 234-4034. A minimum of 2,000 Club Rewards points applies.