Where to find cheap flights

[Needanewname]

Evening all

Just received an invite to a wedding in chicago, can anyone recommend somewhere to find cheap flights.

Many thanks.

Check kayak.com and go from there

I'm from the States and fly back often and have found that to be the easiest way to track down the cheapest options.

thanks Halbanoo, will have a look, getting very excited now, the wedding os of a gorl I used to look after when I was an au paid out there!