I am having the same problem. Getting marrired in December in Punta Cana and I booked in January and got first class tickets for under 600 from Newark, NJ. Now the prices are over 600 for regular flights and alot of my guests still haven't booked. I was able to get a 5% discount from American Airlines, but I had no luck with any other airlines. Any one else have suggestions. I found that the group rate deal with continental didn't actually lock in the rate, so I would just be careful when you sign a contract with them. They said it is just the average price that all your guests will pay that they guarantee you, so they block the seats but the price is not discounted. I was shocked when I found this out...so be careful that you speak to an agent when you do the contract and ask all those questions, I didn't want to lock in an amount only to find out that all of my guests may pay 900...