Zain did not explain why it had done the deal but its chief executive said last year that the Kuwaiti telco wanted to retain majority control of the subsidiary.
Decision reverses an earlier plan to hold a multimillion dollar auction.
The airline received 48.3 million passengers in 2013.
The agreement is dependent on Etisalat’s acquisition of a 53 per cent stake in Maroc Telecom from Vivendi.
Chief executive Osman Sultan was bullish on the company’s prospects despite a slow net profit growth of 4.5 per cent in the first quarter.
The firm made a net profit of Dhs490.3 million ($133.49 million) in the three months to March 31.
The telco made a net profit of 887 million riyals ($243.62 million) in the three months ended March 31, it said in a statement.
Mobily signed a memorandum of understanding in August with four of Atheeb’s founding shareholders to buy a controlling interest in the firm.
A royal decree last May ordered the liquidation of the firm, which never launched services despite making a winning SAR1 billion bid for a fixed telecom licence in 2007.
The former monopoly made a net profit of 14.5 million dinars ($38.46 million) in the three months to March 31.
The firm made a net profit of 8.8 million rials ($22.86 million) in the three months to March 31, a statement said.
This loan is split between a 2.1 billion euro one-year bridge loan and a 1.05 billion three-year portion, Etisalat said.
The fund is most likely to be Mubadala, sources said, given that it already has telecommunications assets and an existing partnership with Etisalat in Africa.
The telco made a net profit of Dhs2 billion ($544.5 million) in the three months to March 31, according to a company statement.
The sources said it was currently unclear if STC was looking to complete a sukuk issue in the local Saudi market.
Wataniya made a net attributable profit of 19.8 million dinars ($70.3 million) in the three months to March 31.
Mobily made a first-quarter net profit of 1.4 billion riyals ($373.3 million), up from 1.34 billion riyals in the prior-year period.
The firm made a net profit of 2.39 billion riyals ($637.3 million) in the three months to March 3.
The firm made a net profit of 55.9 million dinars ($198.5 million) in the three months to March 31.
The company, which filed a lawsuit, claims Zain’s takeover had stopped the firm buying Iraqna, causing it losses of $4.5 billion.
The company made a net loss of $84.8 million in the three months to March 31.
Saudi’s Communications and Information Technology Commission named Dubai-based Axiom Telecom as the provisional winner last year.
Prior to joining Batelco, Alan Whelan has worked in firms such as AT&T, BT and other telecom companies in India and Macao.
Zain will use the money to meet its “operational and expansion financing needs”, it said in a statement.
The S5 will be priced similarly to it’s Sony and HTC rivals, also set to release soon.
Debt holders tendered $136.1 million of bonds and Batelco agreed to buy back $131.4 million of them, a statement said.
Kuwait is the only Gulf Arab country without a telecom regulator.
The telco is continuing to expand its workforce across the Middle East and Asia.
Batelco’s share of retail broadband subscribers has fallen to 20-30 per cent in 2012 from 70-80 per cent in 2008.
The company has offered to buy back up to $200 million in principal amount of its 4.25 per cent, $604.4 million guaranteed notes maturing in 2020.