Delta Air Lines will make its move into LAX Terminals 2 and 3 in the middle of May, across what's sure to be a frantic five-day period from May 12 to May 17 – but Virgin Australia has decided to stay put at the adjacent Tom Bradley International Terminal.

Delta's relocation from Terminals 5 and 6 is part of an extensive seven-year US$1.9 billion (A$2.46bn) works program at LAX which will also see two new Delta Sky Club lounges, one in each terminal.

Building the all-new lounges will take some time, however, with Delta first taking over existing lounge spaces in each of the two terminals – but when renovations are complete, the spaces will be the best in Delta's domestic lounge network and include an expansive outdoor area.

Also on the cards is a private Delta One business class check-in lounge...

... which covers you from check-in through to, well, lounging around before your flight.

Further down the track Delta will open a new connector linking T2 and T3 to the adjacent Tom Bradley International Terminal...

... and link all three terminals in a single precinct to be known as the Delta Sky Way.

Similar to the connector between Terminal 4 and TBIT, it will sit behind security and make for faster connections between flights at LAX, especially with Delta's international SkyTeam partners including Air France-KLM, Alitalia, China Eastern, China Southern and Korean Air.

Virgin Australia to remain at TBIT

However, despite previous indications, Virgin Australia won't be relocating to Delta's new digs.

The airline has opted to stay at the Tom Bradley International Terminal for now – a wise move, considering the amount of work to be done at T2/T3 given the ambitious project's multi-year scope.

While Delta was known to be keen for its Aussie partner to shift to T2/T3, improvements to TBIT over recent years – including the Westfield-managed retail experience and a slew of modern lounges – make the international terminal a better option for Virgin and its passengers.

A spokesperson for Virgin Australia confirmed the decision to Australian Business Traveller, saying "flights to and from Los Angeles will continue to operate from TBIT... once alliance partner Delta Air Lines relocates from Terminals 5 and 6 to Terminals 2 and 3 in May 2017."

Virgin will shift its LAX check-in point for flights to Australia by May 17, moving from its current T3 desks to what's officially T2 in the combined terminal – this will be located at western-most part of T2.

Virgin this week announced that Velocity Gold frequent flyers will once again enjoy lounge access at LAX, plonking their feet alongside those of Virgin's business class travellers at the upmarket Etihad Airlines lounge, while Velocity Platinum card-holders make their way to the Emirates LAX lounge.

“We are confident this will be the best experience for our guests as LAX undergoes a period of significant development and growth" added Virgin Australia Airlines Group Executive, John Thomas.