Alaska diesel prices today
Alaska diesel prices todayDiesel averages $6.60 a gallon in Alaska on 2 October 2026 — the 10th most expensive of 51 states, and down $0.10 on the week.
Alaska against the other states
$0.24 a gallon above the unweighted mean of AAA's 51 state averages ($6.36). The cheapest diesel is in Texas at $5.79, the dearest in California at $8.38.
Regular gas in Alaska is $5.03, so diesel costs $1.57 more per gallon — and more than premium at $5.49.
Tax on a gallon of diesel
$0.24 federal + $0.09 Alaska · 51st highest of 51. The rest — about $6.27 — is the fuel itself, refining, distribution and the retailer’s margin.
Rates as of 1 January 2026. Local taxes, where they apply, are not included.
Diesel prices by city in Alaska
AAA's diesel averages for 3 Alaska metro areas, cheapest first — $0.25 a gallon between the two ends.
Show the data as a table
What a diesel fill-up costs in Alaska
- Diesel car or SUV — 18 gal$118.80
- Heavy-duty pickup — 34 gal$224.40
- Box truck — 60 gal$396.00
- Semi truck, two tanks — 250 gal$1,650.00
More for Alaska
Frequently asked questions
How much is diesel in Alaska today?
$6.60 a gallon, AAA's Alaska average for 2 October 2026 — the 10th most expensive of 51 states. Regular gasoline is $5.03, so diesel costs $1.57 more per gallon.
Are diesel prices going up in Alaska?
Diesel is down $0.10 (1.5%) on a week ago, and up $2.51 on a year ago, when it was $4.09, on AAA's own earlier averages.
Where is diesel cheapest in Alaska?
Of the 3 metro areas AAA reports in Alaska, Juneau has the cheapest diesel at $6.49 a gallon and Fairbanks the dearest at $6.74. Individual stations vary around these averages.
How much is the diesel tax in Alaska?
$0.33 a gallon: $0.24 federal plus $0.09 in Alaska state taxes and fees, the 51st highest of 51. The state average is $0.36. Rates as of 1 January 2026.