Unfortunately, it probably will. Security when traveling into or out of the country has always been tight, it's even tighter since 9/11. Security will check your ID, they will have background information and they will almost certainly be aware of the warrant. Your worst case scenario here is that you are detained, ultimately arrested, miss your trip and end up sitting in a jail for several days or even weeks.
I would urge you to retain the services of a criminal law attorney practicing in the area of the offense. The attorney can address the case for you, possibly even getting the warrant recalled. At the worst, you may need to be turned in to the jail, processed and be made eligible for bond. At the best, XXXXX XXXXX can handle ALL of this, including resolving the warrant and even the case in full. The penalties involved with the case are almost certainly going to be less than the hassle of being arrested at the airport and missing your trip.
You only have a couple months to make this happen so please contact an attorney soon.
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