These two frequent flyer programs are scheduled to be integrated by the end of 2009. As a Midwest Miles member, not only will you soon be able to earn Midwest Miles when you fly Delta Air Lines...

You can now earn and redeem your Midwest Miles for flights on Frontier Airlines to nearly 60 cities throughout the U.S., Costa Rica and Mexico.

Midwest Miles has one of the most generous expiration policies in the industry. As long as you have some positive activity in your account within 36 months, your miles will never expire.

Introducing the New Midwest Airlines Professional MasterCard credit card. The Professional Card gives the business traveler more mileage earning power for expenses related to travel, meals and lodging.