Cheapest Gas in Missoula, MT
Updated April 5, 2026 — Prices updated regularly from EIA data
$2.98
Lowest price at Costco in Missoula
Finding Cheap Gas in Missoula
Every cent counts when you're filling up in Missoula. The difference between the cheapest and most expensive stations in town is $$0.25 per gallon today — pure savings just from choosing the right location.
Maximum Savings in Missoula
Choose Costco over Chevron
$0.25 per gallon
$3.75 per 15-gallon fill • $12.00 per year (est.)
Cheapest Brands in Missoula
| Rank | Brand | Est. Price | Savings vs. Most Expensive |
|---|---|---|---|
| #1 | Costco | $2.98 | $0.25 |
| #2 | Speedway | $3.10 | $0.13 |
| #3 | Circle K | $3.11 | $0.12 |
| #4 | Sunoco | $3.14 | $0.09 |
| #5 | Marathon | $3.15 | $0.08 |
| #6 | BP | $3.17 | $0.06 |
| #7 | Mobil | $3.18 | $0.05 |
| #8 | Exxon | $3.19 | $0.04 |
| #9 | Shell | $3.21 | $0.02 |
| #10 | Chevron | $3.23 | $0.00 |
Gas Saving Tips for Missoula Drivers
- Keep your tires properly inflated to the manufacturer's recommended PSI — under-inflated tires reduce fuel economy by up to 3%, costing you money every mile.
- Accelerate and brake gradually. Aggressive driving can reduce fuel economy by 15-40%, directly increasing how often you fill up.
- Track weekly price cycles in your city — most markets follow predictable weekly patterns. Identifying yours and filling on low-price days saves 5-15 cents per gallon consistently.
- Fill up before holiday weekends. Memorial Day, Fourth of July, and Labor Day consistently see 10-25 cent price spikes as demand surges. Topping off Thursday before a holiday weekend beats the rush.
- Download the Upside app for cashback on gas purchases — users report average savings of 20-30 cents per gallon on qualifying transactions.
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