In its press release, Red Lion claims to be offering “the richest and most flexible airline miles earning promotion in the history of the hotel industry.” It’s a bold statement and we have to admit the current Red Lion promo is a rich offer. Through Jan. 31, 2010, Red Lion R&R Club members can earn 25,000 miles with Alaska Mileage Plan, American AAdvantage, Delta SkyMiles or HawaiianMiles after staying a total of six nights at any Red Lion hotel.

The offer is only valid when you book the Super Mega Miles rate on redlion.com and enter your frequent flyer number of the program you want miles in. Members will earn 2,000 miles per night for the first five nights and on the sixth night, you’ll earn 15,000 miles for a total of 25,000 miles–enough miles for a roundtrip domestic flight award. Members can only earn the Super Mega Miles bonus once. Visit http://www.redlion.com/megamiles for more information.

Registration is not required but your R&R Club membership number must be included with your reservation. Visit http://www.redlion.com/megamiles for full information.

Bottom line: Even if you don’t stay the full six nights, you can still earn 2,000 miles per night, which is four times more than the standard 500 miles per stay. And you earn the bonus miles per night, not per stay. There are only 45 Red Lion hotels, most of which are located along the West Coast. To earn the bonus miles, you will need to book the Mega Miles rate, which is far from the cheapest rate. We found a $74 per night rate at the Red Lion Hotel Denver Central that jumped to $139 per night at the Super Mega Miles rate. It would cost you $834 (not including taxes and fees) to stay six nights and earn the 25,000-mile bonus. If you already have plans to stay at a hotel, this promotion is definitely one to consider, but we don’t suggest you book a stay just to earn the miles because of the extra cost you’ll incur with the Super Mega Miles rate.