Can I earn miles on codeshare flights?

Northwest Airlines WorldPerks allows members to earn miles on codeshare flights, but it is important to note specific conditions that may apply. Generally, if a codeshare flight is operated by an airline that is a partner of Northwest Airlines, members should be able to earn miles for their travel on those flights. It is essential for members to provide their WorldPerks number when booking to ensure that the miles are credited appropriately. However, mileage earning may depend on the fare class of the ticket purchased and the specific airline's policies operating the codeshare flight. Different airlines may have varying rules about mileage accumulation, and some fare classes may earn fewer miles or none at all. For the most accurate and current information regarding earning miles on codeshare flights, members are encouraged to visit the Northwest Airlines WorldPerks web page or consult the specific airline's policies. This will ensure that all details regarding earning opportunities are clearly understood.