Do not use Orbitz, they blatantly lied to me about my refund. I tried canceling a trip, but on several occasions making sure with the agent, "it was refundable, correct?" They assured me it was, then days later when I realized my money wasn't back into my account, they used their shady fine print.
I had used them for years, but after the rudeness, lack of transparency, and communication, I will never use them again.