Its OK to travel abroad if your DUI is pending and ur bond doesnt say any travel condition on it and visa shld be stamped
I cancelled my flight once since i was afraid but second time i also considered the worst and went but my lawyer said it wont be any problem...so trust your lawyer more.
I am in US now, i had to go thru secondary inspection but was fast.
So be truthfull and all will be fine.
And don't ever commit the DUI mistake again.
I am not a lawyer and its just my exp and view.. consulate your lawyer before any step.