What happens if I travel or upgrade from Coach fare to Business or First Class?
If you travel business or first class on any or all the segments, you must be able to document what the full coach fares would have been for EACH of the segments at the time of booking. If the trip is a simple round-trip flight, you may go to a website like Travelocity.com or Expedia.com and use information from that source as the documentation. This information is necessary to determine the eligibility for reimbursement of each particular leg of a journey.