Look up per diem reimbursement rates and mileage deductions for business travel worldwide.

Complete
United States → Illinois, United States
Item Name Destination Amount Conditions
Lodging Chicago, IL 223 USD per night Seasonal from October 1, 2025 – November 30, 2025; GSA non-standard area defined as: Cook / Lake.
Lodging Chicago, IL 142 USD per night Seasonal from December 1, 2025 – March 31, 2026; GSA non-standard area defined as: Cook / Lake.
Lodging Chicago, IL 234 USD per night Seasonal from April 1, 2026 – June 30, 2026; GSA non-standard area defined as: Cook / Lake.
Lodging Chicago, IL 202 USD per night Seasonal from July 1, 2026 – August 31, 2026; GSA non-standard area defined as: Cook / Lake.
Lodging Chicago, IL 223 USD per night Seasonal from September 1, 2026 – September 30, 2026; GSA non-standard area defined as: Cook / Lake.
Meals and incidentals Chicago, IL 92 USD per day GSA non-standard area defined as: Cook / Lake.; On the first and last day of travel, federal travelers receive 75% of the daily M&IE rate.
Lodging Oak Brook Terrace, IL 115 USD per night GSA non-standard area defined as: DuPage.
Meals and incidentals Oak Brook Terrace, IL 80 USD per day GSA non-standard area defined as: DuPage.; On the first and last day of travel, federal travelers receive 75% of the daily M&IE rate.
Lodging Bolingbrook / Romeoville / Lemont, IL 114 USD per night GSA non-standard area defined as: Will.
Meals and incidentals Bolingbrook / Romeoville / Lemont, IL 74 USD per day GSA non-standard area defined as: Will.; On the first and last day of travel, federal travelers receive 75% of the daily M&IE rate.
Lodging East St. Louis / O'Fallon / Fairview Heights, IL 150 USD per night GSA non-standard area defined as: St. Clair.
Meals and incidentals East St. Louis / O'Fallon / Fairview Heights, IL 86 USD per day GSA non-standard area defined as: St. Clair.; On the first and last day of travel, federal travelers receive 75% of the daily M&IE rate.
Lodging Camp Blaz, Guam 179 USD per night No specific conditions
Meals Camp Blaz, Guam 99 USD per day Full local meal rate.
Meals Camp Blaz, Guam 59 USD per day Proportional meal rate: applies to U.S. Government travelers when one or two government meals (e.g. in a government dining facility) are available and directed; the full local meal rate applies otherwise.
Incidentals Camp Blaz, Guam 25 USD per day No specific conditions

Source URLs:
https://api.gsa.gov/travel/perdiem/v2/rates/conus/lodging/2026
This source provides information on travel rates in the United States.
https://www.defensetravel.dod.mil/neorates/report/index.php?report=oconus
This source provides official travel rate information from defensetravel.dod.mil.