| Directions | miles |
| 1. | Start out going West on DULLES AIRPORT ACCESS RD towards DULLES AIRPORT PARKING. | 0.3 |
| 2. | Turn SLIGHT LEFT at the intersection of SERVICE RD to stay on DULLES AIRPORT ACCESS RD. | 0.1 |
| 3. | Turn SLIGHT LEFT onto ARRIVAL LN. | 0.5 |
| 4. | Turn SLIGHT LEFT onto DULLES AIRPORT ACCESS RD. | 3.2 |
| 5. | Take the VA-267 EAST ramp towards RESTON PKWY/WIEHLE AVE/HUNTER MILL RD. | 0.1 |
| 6. | Merge onto SR-267 TOLL E. | 9.8 |
| 7. | Take the I-495 exit | 0.1 |
| 8. | Keep LEFT at the fork in the ramp. | 0.6 |
| 9. | Merge onto CAPITAL BELTWAY. | 6.8 |
| 10. | Take the I-270 exit | 2.0 |
| 11. | Merge onto I-270 N. | 0.9 |
| 12. | Take the I-270 LOCAL exit towards MONTROSE RD. | 3.7 |
| 13. | Take the I-270 NORTH exit on left towards FREDERICK. | 0.2 |
| 14. | Merge onto I-270 N. | 0.8 |
| 15. | Take the exit | 0.2 |
| 16. | Merge onto DWIGHT D EISENHOWER HWY. | 2.9 |
| 17. | Take the MD-124 EAST/MONTGOMERY VILLAGE AVE exit | 0.3 |
| 18. | Turn SHARP LEFT onto SR-124. | 0.7 |
| 19. | Turn LEFT onto unnamed road. | 0.0 |
| 20. | Stay straight to go onto W DIAMOND AVE. | 0.6 |
| 21. | Turn LEFT onto PERRY PKWY. | 0.1 |