Do international travelers need Sri Lanka entry approval before flying, or can it be arranged at the airport?

Apply for entry approval before your flight, as an airline may refuse boarding without it. One reported experience was about 20 minutes for processing and 5–7 minutes for the approval email, though delays of several days are possible.

Travelers report a dedicated fast-track counter at the airport for arranging the permit. Staff were reportedly present there during a nighttime arrival, suggesting it may also be available late at night.

Do not rely entirely on arranging it at the airport: near-round-the-clock availability was mentioned, but no confirmed schedule was provided. Having electronic approval before departure is the safer option.