The ETA for Sri Lanka is valid for 180 days from the date of issue. Americans can use it to visit Sri Lanka for tourism, business, or transiting through any international airport or seaport.
US nationals with the Tourist ETA can enter Sri Lanka twice, whereas Americans traveling on business are allowed multiple entries. Both permits allow for a maximum stay of a month (30 days) for each visit.
American passengers transiting through Sri Lanka on their way to a third country can request the Transit ETA. The conditions for this travel permit are very straightforward. US travelers must confirm their stay does not exceed 48 hours. If their stay is for longer than 2 days, they should apply for an alternative ETA.
US passport holders interested in staying in Sri Lanka for longer than a month or planning to relocate for job-seeking purposes or higher education should organize an in-person visit to the Sri Lankan embassy in Washington DC for further information. They can also contact a consular office in New York, New Orleans, Honolulu, or Bakersfield based on their location.