Hi, I may be posting this in the wrong forum, but I'll give it a shot.

I have some WP miles and I signed up for a visa card which is supposed to give me 15k more miles along with some Amex pts I can redeem. I'd like to fly Midwest airline from MSP to BOS this summer using WP miles. But depeding on the date and flight, the redemption is 50k or 25k. I talked to someone at midwest and they told me that "S" fare is used for award travel.

But when I check on seatcounter, the flights say S2 and still charge me 50k for the ticket. Does S2 mean there are 2 tickets available in that fare class? If so, why are some flights 25k and other 50k? Does it make a difference because I am trying to reserve through NWA using WP miles?

Thank you in advance.