Illinois per-diem rates (FY2026)
GSA lodging & M&IE rates for Illinois cities. Areas not listed use the standard $110 lodging + $68 M&IE rate.
| City / area | Lodging | M&IE | Daily max |
|---|---|---|---|
| Bolingbrook / Romeoville / Lemont | $114 | $74 | $188 |
| Chicago (seasonal) | $142–$234 | $92 | $326 |
| East St. Louis / O'Fallon / Fairview Heights | $150 | $86 | $236 |
| Oak Brook Terrace | $115 | $80 | $195 |