International Travel Grants

The AAS International Travel Grant Program is currently on hold due to the coronavirus pandemic. As international travel returns to normal, we will restart the program and announce that fact via the AAS website and AAS Digest.

The AAS administers a National Science Foundation (NSF) grant that provides funding for airline travel to international science meetings by individuals at US institutions. In years with an International Astronomical Union (IAU) General Assembly (GA), the grant additionally funds travel for US astronomers to the GA and contemporaneous symposia.

Disclaimer: This program is contingent on the AAS receiving continued funding from the NSF. Our latest grant application is under consideration, and no awards will be made until the Society has received an award letter from the NSF for this program. If we receive funding, we will proceed with selections from the grant applications we have received by the deadline. If we do not receive funding, we will notify all applicants of this fact as soon as possible after the decision is known to us.

Eligibility Requirements

You do not have to be a member of the AAS to apply for an International Travel Grant, but you do have to be currently employed in the US or with a US institution. Note that there are restrictions on how the funds are used, which will be communicated to fund recipients along with their awards. Chief among the restrictions is that you must use US flag carriers except in certain circumstances, you must use the funds only for direct travel between the US and the meeting location, and you must use the funds for airfare only (not, e.g., for baggage fees or in-flight meals).

AAS International Travel Grant funds are targeted for (in priority order) early-career scientists, scientists from smaller institutions or from underserved populations, and scientists whose participation at the meeting is important for US visibility.

Funds may not be requested for any AAS or AAS Division meeting, even if the meeting is held outside the US.

Please note that the NSF considers Puerto Rico a qualifying location for this program.

When completing the application, be sure to supply an accurate price quote for your airline travel on a US flag carrier. Cheaper fares on non-US-flag carriers do not improve your funding chances, as you must fly on a US flag carrier whenever and wherever possible.

Information for International Travelers

All travelers are also encouraged to read "Americans Traveling Abroad" and "Alerts and Warnings" prior to undertaking any international travel. Both resources are from the US Dept. of State's Bureau of Consular Affairs.

Final Reports

Grant recipients should send in their final report and appropriate receipts or copies as outlined in their award letter. This includes grants for travel to the IAU General Assembly as well as travel to other international meetings. Unless specifically requested, we will not send confirmation of receipt of your final report.

The final report should briefly describe the following:

  • the subject content of the meeting
  • the grant recipient's participation in the meeting
  • the benefit of the meeting to the grant recipient
  • attendance figures and demographics (if available)

Timely submission of final reports helps us complete our paperwork on time so that the grant may be continued without interruption in the future.

Final reports can be sent electronically to or printed and mailed to the following address:

American Astronomical Society
Attn: International Travel Grants
1667 K Street NW, Suite 800
Washington, DC 20006 USA

Policy on Interim Proposals

The AAS International Travel Grant Program receives proposals for review only two times per year: once in the spring and once in the fall. Occasionally an individual may discover a meeting opportunity or be invited to a meeting that would demand submission and review of a travel-grant proposal between formal review periods. Although the International Travel Grant Program does not encourage the submission of such proposals, if by circumstance such a proposal is received and the opportunity is significant for the applicant, the AAS Executive Officer will review the proposal and decide if funding should be provided.