You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Richmond,_Virginia

Context:
The Greater Richmond area is served by the Richmond International Airport (IATA: RIC, ICAO: KRIC), located in nearby Sandston, seven miles (11 km) southeast of Richmond and within an hour drive of historic Williamsburg, Virginia. Richmond International is now served by nine airlines with over 200 daily flights providing non-stop service to major destination markets and connecting flights to destinations worldwide. A record 3.3 million passengers used Richmond International Airport in 2006, a 13% increase over 2005.

Question:
How many kilometers away from Richmond is Richmond International Airport?

11