Seoul Incheon International Airport in South Korea is an international aviation hub that offers connecting flights for numerous international flights, including flights to the United States. If your study destination is Harvard University, located in Cambridge, Massachusetts, you may choose to make a connecting flight through Incheon Airport to reach your final destination in the United States.

When transferring at Incheon Airport, you need to be aware of the following:

1. Visa Requirements: According to Korea's visa-free transit policy, if you are transferring within 24 hours of Incheon Airport and are not entering Korea, you do not need a Korean visa. You can wait for your next flight at the international transfer area at Incheon Airport.

2. Direct baggage check-in: If your ticket is a connecting ticket, i.e. one ticket issued by the same airline or a partner airline, then your baggage can usually be checked in directly to your final destination. In rare cases, if it is a non-interline ticket from a different airline, you may need to re-check your baggage at Incheon Airport.

3. Transfer time: To ensure a smooth transfer, it is recommended to allow enough time for your connecting flight. Considering the size of Incheon Airport and possible security wait times, it is recommended to allow at least 2 hours for your connecting flight. If your connecting time is longer, Incheon Airport provides facilities such as lounges and free internet areas.

4. Airport Facilities: Incheon Airport offers a wide range of facilities and services including lounge areas, dining, shopping, showers, and more to meet your various needs during your connecting flight. In addition, the airport has free Wi-Fi for you to stay connected at all times.

5. Accommodation: If your connecting flight is longer than 24 hours, or if you want to have a short layover in Seoul, there is a connecting hotel at Incheon Airport that offers facilities such as showers and a business center. It is recommended to book in advance on the official website as reservations may be high during the epidemic.

6. Security check: You may need to go through security check again during your connecting flight. Please make sure that your carry-on complies with aviation security regulations, especially the requirements for carrying liquid items.

7. Credit card use: Credit cards are relatively easy to use in Korea, and most restaurants, stores, etc. accept credit card payments. However, it is advisable to carry some cash as a backup, especially in some small stores or markets.

When planning your trip, it is recommended to check the flight information in advance to confirm the connecting time and related policies to ensure a smooth journey.

Have a great trip studying abroad!