Transportation in Monument is entirely reliant on personal vehicles, as there is no public transit system.
- **Roads & Highways**: The city is bisected by Oregon Route 402 (the Monument Highway), which connects the town to U.S. Route 395 to the east and to Oregon Route 19 to the west. - **Airports**: The city owns and operates the Monument Municipal Airport, a small, unattended public-use airport with a single dirt/gravel runway used primarily for light general aviation, agricultural spraying, and emergency medical flights. The nearest major commercial airport is in Boise, Idaho, or Portland, Oregon. - **Active Transit**: Given the tiny footprint of the town, walking and cycling are common for local trips within the city limits, though dedicated bicycle infrastructure does not exist.