Consider maybe getting a call blocking device or phone.. You can google them and many are around $60.00 or so.

Report the calls here:
By State DNC lists:
http://www.donotcallprotection.com/do_not_call_chart.shtml

Federal:
https://www.ftccomplaintassistant.gov/#&panel1-1
https://esupport.fcc.gov/ccmsforms/form1088.action
https://complaints.donotcall.gov/complaint/complaintcheck.aspx?panel=2

On Saturday, staff from cheapoair called 4 times, on Sun called 2 times. This has been a harassment and I detest this guy and the company he represents.

I meant to type in that  the caller was 1 646 738 4943 - I typed in 648 in error above.

Same happened to me March 20th 2014  I went through all the process of booking the flight, and then it said the flight was more than $100 more, and that my credit card hadn't been charged and that someone else "nabbed" the last seat before I did.
The call came immediately - 2 back-to-back calls at 3:53 a.m.  Here I was working quietly on my computer, and then the phone starts ringing waking others up in the household.  They hung up when the call went to voicemail, and proceeded to call back again immediately.   I had to go and unplug 2 phones so the rest of the household could get back to sleep.  How

do not want unsolicited calls

I am getting back to back call from this no, and i am already done with my journey before a month , i do not understand why they call me everyday . When ever they call me i missed that call as i am on work every time . even when i booked ticket they said no booking fees and they charge me 100 $ for my booking , all bad next time i prefer to go direct airline or agent where i dont need to give my details to that kind of unknown site .

They have called me 3 times in the last 20 minutes and never leave a message...

chepoair fraud

YES YOU ARE RIGHT

I used  cheapoair website  to try booking flights but after entering details it came up that the flights had increased in price. I declined the new flights and booked elsewhere. Have been getting phone calls from the same number but nobody speaks. I phoned my CC company and cancelled my card just incase. I wouldn't feel comfortable knowing they had my details stored, even though nothing had been taken from my account. The price comparison websites should remove this website from their lists.

Don't like when someone calls and asks me my CC info... Not cool

Same story here. I was trying to book a flight through bookingbuddy-->Tripadvisor tab, which opend a popup to OneTravel . After collecting all my personal info (Name, BoB, CC #, address), the site came back and said the tickets were sold out. After about 5 mins , i got a call from these guys CheapOair (646-738-4943) asking me what was the price i was willing to pay and quoting me another price. Looks like they are low balling and collecting personal information from unsuspecting customers.  I have just called my CC company anyways.

i tried to book flight on line by some company and they show sold out then in the same moment receiving call from different company showing that number up there.they knew already I coudnt make it then they tried to help me .and they said we are the same travel agency but not.

You were incredibly lucky!  I have used that group of vipers three times and have NEVER even been called back for any reason, and when I recently had a need to reschedule, they basically told me to screw myself!  So...I am disputing their charges with my credit card company and will NEVER, repeat NEVER use them or any other online bulk ticket seller (I emailed Kayak.com for info on their cancel/change policies and got a rambling and stupid response from some bimbo who 1. did NOT answer my question and 2. made up an imaginary scenario she arrogantly assumed I was inquiring about.  AND I got a better price dealing with the airline directly than ANY online bulk ticket seller was offering--apparently their massive discounts are all imaginary.

Im pissed becuz i keep getting charged roaming and long distances fee whenever the call

they keep calling and not saying anything...keep getting back to back calls.

cheapoair.com called me after my ticket was "sold out" and then asked me if I wanted "help".  But they:

Got my name wrong.

Said I was booking from Los Angeles to Vancouver for six people when I was booking a totally different flight for 2 people.

Since they had my CC number and my address, phone and birthday I called my CC company and flagged Cheapoair in case they decided to charge me for six tickets to Vancouver.

Cheap-o-air called me to thank me for using them to book my tickets. Sent me a discount by email. They were very nice!

cheapoair.com. they called me after I didn't complete a fare online due to a price increase