You should check before you book that you are able to get the required visas, passports and vaccinations in time for your flight. IATA offers a really easy to use online resource called Travel Centre which tells you all of the entry and health requirements for your destination. Please be aware that to travel to the United States of America, you may well have to apply for an Electronic System Travel Authorisation (ESTA).
Check-in for LEVEL flights is available both online and at the airport. Online check-in is the process by which you can get your boarding pass and confirm your seat number through the website or on your mobile phone. Online check-in is available 24 hours before departure, and check-in at the airport opens 3 hours before departure at most airports.
Important: From 24th April 2018, following new security guidelines received from the US government, check-in at the airport for flights travelling to the United States of America will open 4 hours prior to departure. To enable all of the security processes to be completed, we ask that you arrive at the airport to check in 4 hours before departure, and we also request that you be at the boarding gate 90 minutes prior to departure.
Advanced Passenger Information
We recommend checking in online for all flights, even if you plan to check in baggage at the airport. In order to check in online, you must also fill out the Advanced Passenger Information (API) form. This information is required by governments before starting a journey, and is collected by the airline. Even if you are checking in at the airport, we recommend that you fill in the API form online beforehand.
The API form requests some or all of the following data:
If you're travelling on a flight to or from the U.S.A, you also need to provide: