You will need to be in area 2 to use this cheat.
1. rob a banshee
2. listen to lips 106 in the car
3. drive to the bridge leading to area 3 with your car in good condition
4. enter the code L1, up, left, R1, triangle, circle, down, x
5. press down on your pad this will send your car in the air
6. now drine as fast as you can to the end of the bridge
7. before you drive off the bridge press down to send your car flying
8. if done correctly you will be on the other side of the bridge
9. no you cannot rob planes from francis international airport
10. if you die or get busted you will be back in area 2