Transiting the nation by vehicle currently. Will comment on anything interesting. First thing of note is that CA gas prices are nearly as much as the next two states combined.
| State (Sequential) | Freeway(s) | Cost/Gal (Nov 2025) | 2022/Gal | % Diff |
|---|---|---|---|---|
| 1. California | I-5, I-10, I-80 | $4.70 | $5.08 | -7.5% |
| 2. Oregon | I-5, I-84 | $3.85 | $4.49 | -14.3% |
| 3. Washington | I-5, I-90 | $4.25 | $4.47 | -4.9% |
| 4. Nevada | I-15, I-80 | $3.98 | $4.48 | -11.2% |
| 5. Idaho | I-84, I-86 | $3.33 | $4.04 | -17.6% |
| 6. Utah | I-15, I-80 | $3.45 | $4.02 | -14.2% |
| 7. Arizona | I-10, I-17 | $3.36 | $3.82 | -12.0% |
| 8. New Mexico | I-10, I-25 | $3.05 | $3.61 | -15.5% |
| 9. Colorado | I-70, I-25 | $3.20 | $3.64 | -12.1% |
| 10. Wyoming | I-80, I-25 | $3.15 | $3.70 | -14.9% |
| 11. Montana | I-90, I-15 | $3.28 | $3.92 | -16.3% |
Source: AAA and EIA statewide averages (early Nov 2025). Prices near listed freeways typically within ±$0.10 of state average. % Diff = ((2025 - 2022) / 2022) × 100.
Have a safe trip!