East St. Louis / O'Fallon / Fairview Heights, IL per diem rates
Official FY2026 GSA per diem for East St. Louis / O'Fallon / Fairview Heights (St. Clair County), Illinois. Lodging is capped at $150.00 per night, and meals & incidentals are $86.00 per day ($64.50 on your first and last travel day).
East St. Louis / O'Fallon / Fairview Heights rate table
| Months | Lodging (per night) |
|---|---|
| All year | $150.00 |
| M&IE (per day) | $86.00 · $64.50 first/last day |
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About East St. Louis / O'Fallon / Fairview Heights per diem
East St. Louis / O'Fallon / Fairview Heights's FY2026 lodging cap is $40.00 above the $110.00 standard CONUS rate that applies to most of the country, and its $86.00 M&IE rate is $18.00 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 holds flat at $150.00 a night in every month of FY2026, so there's no seasonal adjustment to plan around. On your first and last travel day, M&IE drops to $64.50 under the 75% first/last-day rule — full days in between are paid at the full $86.00.
Frequently asked questions
What is the per diem rate for East St. Louis / O'Fallon / Fairview Heights, IL?
For FY2026, East St. Louis / O'Fallon / Fairview Heights has a GSA lodging rate of $150.00 per night and a meals & incidentals rate of $86.00 per day ($64.50 on the first and last travel day).
Does the East St. Louis / O'Fallon / Fairview Heights per diem rate change by season?
No — East St. Louis / O'Fallon / Fairview Heights has a flat lodging cap of $150.00 a night all year, so there is no seasonal adjustment to account for.
How does East St. Louis / O'Fallon / Fairview Heights 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. East St. Louis / O'Fallon / Fairview Heights's peak lodging cap is $40.00 higher than standard, and its M&IE rate is $18.00 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.