Is it necessary to carry a copy of ESTA application to the airport?

In accordance with US regulations, it’s not necessary to bring an original copy of the USA ESTA permit for travel within Visa-free programs. But, you should have an original copy of the permit to record your travel. Certain airlines might require you to carry an original on hand, in which the case, you might require an image. If you’ve lost the ESTA applicant number, it is possible to find it by entering the name of the applicant, the date of birth as well as the passport number, along with the country of issue for their passport. This can be done through the ESTA VISA website.