Sun Valley / Ketchum, ID per diem rates
Official FY2026 GSA per diem for Sun Valley / Ketchum (Blaine / Elmore County), Idaho. Lodging is capped at $181.00–$300.00 per night depending on the season, and meals & incidentals are $80.00 per day ($60.00 on your first and last travel day).
Sun Valley / Ketchum rate table
| Months | Lodging (per night) |
|---|---|
| Jan–Mar | $300.00 |
| Apr–May | $181.00 |
| Jun–Sep | $295.00 |
| Oct–Nov | $191.00 |
| Dec–Dec | $300.00 |
| M&IE (per day) | $80.00 · $60.00 first/last day |
Lodging changes by month here — the calculator uses the right rate for each night of your trip.
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About Sun Valley / Ketchum per diem
Sun Valley / Ketchum's FY2026 lodging cap is $190.00 above the $110.00 standard CONUS rate that applies to most of the country, and its $80.00 M&IE rate is $12.00 above the $68.00 standard. GSA sets non-standard rates like this one after surveying actual lodging costs in the area, rather than applying a single nationwide figure — see how the standard rate compares to listed cities for the full mechanics.
Lodging here isn't flat year-round: the cap runs highest at $300.00 a night in January, February, March, December, and falls to $181.00 a night in April, May. A trip that starts in a peak month and ends in a low month is billed at each night's own rate, which is exactly what the calculator above does automatically — see our guide to how lodging rates change by season. On your first and last travel day, M&IE drops to $60.00 under the 75% first/last-day rule — full days in between are paid at the full $80.00.
Frequently asked questions
What is the per diem rate for Sun Valley / Ketchum, ID?
For FY2026, Sun Valley / Ketchum has a GSA lodging rate of $181.00–$300.00 depending on the month per night and a meals & incidentals rate of $80.00 per day ($60.00 on the first and last travel day).
Does the Sun Valley / Ketchum per diem rate change by season?
Yes. The lodging cap peaks at $300.00 a night in January, February, March, December, and drops to $181.00 a night in April, May. Book against the rate for your actual travel month, not the yearly figure.
How does Sun Valley / Ketchum compare to the standard CONUS per diem rate?
The standard rate that applies to most of the US is $110.00 lodging + $68.00 M&IE. Sun Valley / Ketchum's peak lodging cap is $190.00 higher than standard, and its M&IE rate is $12.00 higher than standard — reflecting GSA's local cost-of-travel survey for this destination.
Rates from the GSA FY2026 dataset. PerDiemWise is an independent tool, not affiliated with the GSA.