Some people asked me about the fare, but I didn't get the ticket from the U.S. So can't say about the fare. Sorry! *********** IMPORTANT *************** About London transit visa, if you have a valid US visa stamped on your passport, you don't need transit visa. If you just hold H1B, or F1, but no multiple entry visa stamped on your passport, then you need that visa. Thank you all for your response.