Without knowing your income and your typical expenditures we have no way of telling you if you can afford something.
Without knowing what airport you're flying out of, or what airport you're flying into, how long you want to be there, and what class of service you're looking to fly, if you want to be on a certain alliance, etc this question requires a lot of mind reading to even attempt to answer.
I'm putting on my mind reading cap and assuming you're flying out of OME and into CMN, want to fly economy, and want to stay between 5-7 days.
If that is the case then $1,100 seems steep. A quick 5 second search showed me this pricing for leaving on these dates - prices seem to average around $857 round trip:
But if you're feeling fancy and were looking for a business class fare, then grab that $1,100 fare asap, since I couldn't find business for less than $2,694 round trip