LATAM Airlines Online Check-In Guide (2026)
LATAM Airlines offers automatic check-in for many domestic flights, while international passengers must fill out trip details 48 hours before departure to activate it. Online check-in closes 2 hours before your first departure flight.
Check-In Timing
| Airline | LATAM Airlines (LA) |
|---|---|
| Check-In Opens | 48 hours before departure |
| Check-In Closes | 2 hours before departure for online check-in (counter closes 60 minutes before domestic, 2 hours before international) |
| Check-In URL | https://www.latamairlines.com/us/en/check-in |
| Mobile App | LATAM Airlines App (iOS, Android) |
| Mobile Boarding Pass | Yes |
| Airport Kiosk | Yes |
Step-by-Step Check-In Guide
1. Enter My trips on the LATAM website or LATAM Airlines App. 2. Fill in your travel documentation. 3. The boarding pass will be available to present the day you fly. 4. If you have a domestic flight in certain regions, check-in is automatic. 5. If flying with Delta, check-in 24 hours before.
Documents Needed
Identity Card (for Mercosur citizens traveling between South American countries) or passport valid for at least 6 months at the date of return. Visa if required. Reservation code and last name.
Seat Selection
Seat selection may be free or have an extra fee depending on the fare. Full fare includes standard seat selection. Basic, Light, and Standard fares allow seat selection at an extra cost. If you do not select a seat, one will be randomly assigned 48 hours before your flight. LATAM+ seats are available for more space.
International Check-In Rules
For international flights, you must fill out your trip details starting 48 hours before the flight to activate automatic check-in. You must arrive at the airport 3 hours before departure. A valid passport (at least 6 months validity) and visa (if applicable) are required.
Group Check-In
When traveling with a minor, LATAM will randomly assign two seats together without an associated charge (one for the minor and one for an adult from the same reservation) 48 hours prior to flight departure.
Troubleshooting
1. 'Can't check in online' - If your flight had a time change or was cancelled, review the new flight option first. 2. 'Flight operated by Delta' - Check-in is not automatic; you must do it manually 24 hours before. 3. 'Traveling with another airline' - You must check in on the corresponding company's website.