Montana Per Diem Rates (FY2026)
Montana has 4 GSA non-standard per diem areas for FY2026. Everywhere else uses the standard $178/day rate ($110 lodging + $68 M&IE). The most expensive is Big Sky / West Yellowstone/Gardiner — up to $310/night lodging in June plus $80/day M&IE.
| Area | M&IE / day | Lodging / night | Peak month |
|---|---|---|---|
| Big Sky / West Yellowstone/GardinerGallatin/Park | $80 | $176–$310 | Jun |
| HelenaLewis and Clark | $74 | $132 | flat |
| Kalispell/WhitefishFlathead | $80 | $124–$232 | Jul |
| MissoulaMissoula | $74 | $130–$195 | Jun |
| All other Montana locationsstandard rate | $68 | $110 | flat |
Estimated trip cost
A 4-night business trip to Big Sky / West Yellowstone/Gardiner — Montana's most expensive per diem area — in June totals $1,600: $1,240 lodging (4 nights) + $360 M&IE (5 days, first & last day at 75%). Big Sky / West Yellowstone/Gardiner month-by-month rates →
Book within the Montana lodging cap
Otto finds hotels at or under the GSA lodging cap for your Montana destination — $110/night at the standard rate, higher in the 4 listed areas — and books them for you.
Montana per diem FAQ
- What is the per diem rate in Montana?
- Montana has 4 GSA non-standard per diem areas with their own rates for FY2026. Everywhere else in Montana uses the standard CONUS rate of $178 per day: $110 for lodging plus $68 for meals & incidental expenses (M&IE).
- What is the meal reimbursement (M&IE) rate in Montana?
- Meal reimbursement in Montana ranges from $68 to $80 per day for FY2026, depending on the area. The first and last day of travel reimburse at 75% of the daily M&IE rate.