Lorie - Southwest flies into Midway and Detroit. That affects the cost of the other airlines into and out of Grand Rapids, etc.

I searched Southwest and Expedia - cheapest seems to be Midway on Expedia about $306 RT flying in on the 5th, home on the 9th.

For others - don't forget that June 5 is just one month away - better rates if you buy 30 days in advance. Buy now or pay more.

Check other sites such as www.cheaptickets.com. Got any airmiles you can redeem?