Air Travel

Air Travel

1. Under the Fly America Act, only U.S. air carriers shall be used for travel reimbursed from federal grants and contracts. However, there are exceptions to using U.S. air carrier services under the Fly America Act and we encourage you to email if you are considering flying with a foreign carrier. The travel coordinator will determine if a foreign carrier can be used for your trip and if the cost is allowable and can be charged to the grant. Please note that the availability of a flight at less cost is not an adequate justification to use a foreign carrier service.

2. Only coach class is reimbursable.

Booking your Flight through Connexxus

Even though it is not required at this time, you are highly encouraged to book your flight via Connexxus, which is UCI’s preferred method for making travel arrangements and has UC negotiated discounts on airlines, hotels, and car rentals. To register as a Connexxus user, please send an e-mail to and request Connexxus access. In the body of the e-mail list your name, UCI affiliation and office phone number. You will receive an email confirmation when access is established.

How to Pay for Airfare

You are encouraged to book and pay for your own airfare via Connexxus.

1. To be reimbursed for airfare and additional travel expenses, fill out the Travel Reimbursement Request Form and attach the flight confirmation as well as the receipts for additional expenses incurred on University business.

2. If the cost of the flight is a financial hardship and you cannot wait to be reimbursed after the trip is over, please complete a Travel Reimbursement Request Form, attach the flight confirmation, and give it to the travel coordinator.

The Department of Earth System Science acknowledges our presence on the ancestral and unceded territory of the Acjachemen and Tongva peoples, who still hold strong cultural, spiritual and physical ties to this region.