I'd suggest you research the best flight you can find, and then post your results here to see if somebody has a better suggestion.
Lots of resources for that research. The easiest is probably
www.kayak.com. But there is also Orbitz, Expedia and a slew of others.
Lots of the above sites also have an "alert" feature, which lets you give it details of a particular flight and then you will get an email if the price drops (a sale).
"Matrix ITA" is more challenging to use, but a stronger tool and worth the effort of learning it.
The airline sites themselves sometimes yield results not on the more general ones. The second post in this particular forum is a list of "low cost carriers". Worth a look.
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