Gas prices in Great Falls
Gas prices in Great FallsDaily metro average from AAA (2026-09-11), per gallon including taxes, for the Great Falls area of Montana.
Regular
$4.41
per gallon · €1.00/L
Midgrade
$4.74
per gallon · €1.08/L
Premium
$5.01
per gallon · €1.14/L
Diesel
$6.00
per gallon · €1.36/L
up vs last week 0.1% vs last week ($4.40) up vs a year ago 35.4% vs a year ago ($3.25)
Nearest Montana metros on price
The metros immediately either side of Great Falls in Montana, so you can see whether paying $4.41 here is normal or not.
All Montana gas prices →
State average, trend, station map and calculators.
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Your own area's price and a live map of the stations around you.
Frequently asked questions
How much is gas in Great Falls right now?
Regular gasoline averages $4.41 per gallon across Great Falls today (AAA metro average, 2026-09-11). Midgrade is $4.74, premium $5.01 and diesel $6.00.
Is gas cheaper in Great Falls than the rest of Montana?
A Montana state comparison is unavailable today.
Where does Great Falls rank in Montana?
Great Falls is the 2nd cheapest of 3 Montana metros AAA tracks.
Are gas prices in Great Falls higher than a year ago?
Yes — regular is 35.4% higher than this time last year ($3.25/gal then, $4.41 now).