Lambert-St. Louis International Airport is located approximately 10 miles (16 km) northwest of Washington University in St. Louis. The region’s light rail system, MetroLink, offers service from both airport terminals to the university’s Knight Conference Center.

Directions to the Knight Conference Center

Visa information

Visa requirements

Attendees from outside the United States may need to acquire a visa or visa waiver prior to entry. Please consult the U.S. Visa Wizard to determine eligibility and requirements.

You may request a participant letter for visa purposes via email to

Please include the following information:

  • Title
  • First name
  • Last name
  • Affiliation (university, employer)
  • Country of citizenship
  • E-mail address
  • Full mailing address

Conference participants are urged to request a visa early as there often are delays in this process.

Visa waiver countries

Citizens of countries who participate in the Visa Waiver Program do not need to apply for a visa to attend the conference. They may enter the United States using their passports and their conference registration receipt.

However, all Visa Waiver travelers will be required to obtain an authorization from the U.S. Department of Homeland Security via the Electronic System for Travel Authorization (ESTA) before traveling to the United States.

At the port of entry into the United States, conference participants should request they be granted “Visa Waiver for Business” (WB) status. This will allow participants to stay in the U.S. for the length of the conference.

Non-visa waiver countries

Citizens of countries who do not participate in the Visa Waiver Program will need to request a Business Visa (B-1) at their nearest U.S. Consulate. They must present their conference registration receipt and their valid passport at the U.S. Consulate.


In most cases, Canadian business travelers may apply for temporary admission at a U.S. port of entry without first obtaining a nonimmigrant visa. At the port of entry, Canadian citizens attending the conference should request a B-1 Temporary Business Visitor and provide evidence of identity and Canadian nationality (i.e., Canadian passport), evidence of a residence in Canada and intent to depart the U.S. (roundtrip airline ticket), and documentation describing their business purpose (conference registration confirmation).

The information provided above is not authoritative.

Please consult the nearest U.S. Embassy or Consulate in your country for assistance.