While Midwest was not a member of any airline alliance, Midwest Miles were redeemable in the Delta Air Lines SkyMiles program, and vice versa. As of 2006airline alliance, Midwest Miles were redeemable in the Delta Air Lines SkyMiles program, and vice versa. As of 2006[update], Northwest route maps showed Midwest as a partner airline and Northwest (now Delta) pulled its non-hub flights out of Milwaukee.
Midwest Miles was unusual in that it had links to the Amtrak program. Midwest Miles members could transfer blocks of 5,000 miles (8,000 km), up to a maximum of 25,000 miles per year to Amtrak's program.[citation needed] Amtrak points could be used for travel on Amtrak and United Airlines (ex Continental Airlines).[citation needed]