Cheapest Gas in Montana
Every Montana metro AAA tracks, ranked from the lowest regular price up, updated 7/21/26. The cheapest gas in Montana right now is $4.14/gal in Missoula.
Cheapest metroMissoula$4.14/gal regular
| # | Metro | Regular | Diesel |
|---|---|---|---|
| 1 | Missoula | $4.14 | $4.73 |
| 2 | Great Falls | $4.14 | $4.76 |
| 3 | Billings | $4.16 | $4.73 |