Atlantic Star Airlines (London Luton) says the collapse with talks with Titan Airways (ZT, London Stansted) have forced it to defer the sale of tickets for its London Stansted-St. Helena charter flights due to launch in March 2016.

In a statement, the start-up said following the conclusion of negotiations, it had reached a draft agreement with Titan Airways to use its B757-200s to operate the route.

"However we received notification this week that Titan have unilaterally declared all agreements void and are no longer willing to operate the services," Atlantic Star management said in a blog post. "It goes without saying that we feel extremely let down."

Atlantic Star states it has been forced to delay ticket sales while a new charter provider is sought.

"We know how disappointed many people reading this release will be and we are hard at work engaging a replacement airline for the charter programme. This will take time, and we will keep our future customers and trade partners informed as and when it is appropriate to do so."

Titan Airways declined to comment.

St Helena's much anticipated airport is due to open due in February 2016 with British Airways (BA, London Heathrow) franchise holder, Comair (South Africa) (CAW, Johannesburg O.R. Tambo), to operate weekly scheduled flights to Johannesburg O.R. Tambo using a B737-800.