if its any help i've had a snake flown in from Brisbane to SA, The breeder rang me when it was handed in to AAE in Brissie, gave me the flight number and the expected time of arrival here in Adelaide, I got a phone call from Adelaide AAE just as i was parking the car out the front of their pickup area. so only as long as it takes a plane to get from point A to point B.
4 weeks ? if that was the case they'd go out of business real quick....