Visitors to the United States with a B1/B2 visa have the freedom to visit the country as many times as they wish. There is no set limit on the number of times you can enter the U.S. on your B visa, as long as you meet the requirements set out by U.S. immigration. The B visa is a multiple entry visa and is usually valid for 10 to 15 years.
When you enter the U.S., the immigration officer at the port of entry will do a short interview to determine the purpose of your visit.
The immigration officer will then approve your stay for a specific period, based on the purpose of your visit. If you are in the U.S. for business purposes, you can negotiate a contract with a U.S. based company or attend or participate in a conference that is related to your profession, education, or business.
If you are visiting the U.S. for pleasure, you can take a vacation, take a tour of the U.S., visit your friends or family, attend social events, receive medical treatment, or take part in an event or contest that is related to sport or culture.
It is important to note that if you stay in the U.S. for more than 90 days, you may be questioned in detail by the immigration officer about the purpose of your visit when re-entering the U.S. using ESTA.
Also, if you cannot cover all the costs for your trip, you may provide evidence that another person will cover some or all costs for your trip. Finally, visa applicants must qualify on the basis of their own residence and ties abroad, rather than assurances from U.S. family and friends.
A letter of invitation or Affidavit of Support is not needed to apply for a visitor visa.
In conclusion, visitors to the United States with a B1/B2 visa have the freedom to visit the country as many times as they wish.
There is no set limit on the number of times you can enter the U.S. on your B visa, as long as you meet the requirements set out by U.S. immigration.
However, it is important to note that if you stay in the U.S. for more than 90 days, you may be questioned in detail by the immigration officer about the purpose of your visit when re-entering the U.S. using ESTA.