Can I fly directly to Ushuaia from outside Argentina?

No. All international flights arrive in Buenos Aires. You must clear customs and immigration there before catching your domestic flight.

Should I book my domestic flight on the same ticket as my international flight?

Generally, no. Most systems treat them as separate legs. Booking them separately allows you more control if the domestic flight is delayed.

Booking Flights to Ushuaia for Your Antarctica Cruise

Fly into Buenos Aires (EZE) first, then book a separate domestic flight from Aeroparque (AEP) to Ushuaia (USH). Do not attempt to connect via EZE to USH on the same day if your flight arrives after 9:00 AM, as you will need to transit across the city.

Secure your international arrival in Buenos Aires. Book your international flight to land at Ezeiza International Airport (EZE) at least 24 hours before your domestic flight to Ushuaia. This provides a buffer for luggage delays or strike-related cancellations.
Use Aeroparque (AEP) for domestic flights. When searching for flights to Ushuaia, filter specifically for departures from Aeroparque (AEP). It is much closer to the city center and significantly easier to navigate than transferring from EZE to AEP.
Use a flexible search tool. Use Google Flights to track prices, but always book directly through the airline's website (Aerolíneas Argentinas is the primary carrier). Third-party booking sites often complicate changes if the airline makes a schedule adjustment.
Account for luggage weight limits. Domestic flights in Argentina often have stricter carry-on weight limits (usually 8kg) than international flights. If you are hauling heavy camera gear or polar parkas, factor in the cost of checking a bag.

Can I fly directly to Ushuaia from outside Argentina?: No. All international flights arrive in Buenos Aires. You must clear customs and immigration there before catching your domestic flight.
Should I book my domestic flight on the same ticket as my international flight?: Generally, no. Most systems treat them as separate legs. Booking them separately allows you more control if the domestic flight is delayed.