The agreement calls for deliveries to start in 2022.
The purchase would help modernize Iran Aseman's fleet after the carrier in December was banned by the European Union for "unaddressed deficiencies". The airline reached an earlier pact to lease seven Airbus planes.
Boeing described the deal as a "memorandum of agreement", meaning it is only outline for the time being and subject to government approvals.
Iran signed a $16.6 billion deal for 80 Boeing passenger jets on December 11, 2016. This has made Iranian airliners notoriously risky and cost companies like Boeing billions of dollars.
Financing the multibillion-dollar purchases also will be a challenge given the restrictions still in place on lenders doing business with Iranian companies, Aboulafia said. The sale needs approval from the Department of the Treasury. The agreement relaxed many economic sanctions against Iran in return for the country's verifiable pledges that its nuclear work would be peaceful in nature.
At current prices, the 30 jets are worth $3.4 billion. From 1995 to 2014, the USA sacrificed between $203.1 and $271.8 billion in potential export revenues to Iran.
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Boeing's announced agreement to sell another 60 airplanes to Iran has exposed an Obama-era policy that's now under extreme vetting by President Donald Trump's administration, The Washington Free Beacon reported.
Officials of United States and Iran meet in connection with nuclear negotiations that eased sanctions on Iran. Trump's White House has been looking to crack down on Iran.
Boeing seemed to be addressing Trump in its statement on the sale.
Boeing yesterday said it had signed a $3-billion deal with Iran's Aseman Airlines for 30 new jetliners. The first is expected to be delivered to Norwegian Air Shuttle in May. For example, the average age of major Iranian carrier planes now exceeds 20 years and Tehran and been looking to Airbus, Boeing and other airplane manufacturers to modernize its fleet.
"This is not a market that means a great deal anymore", he said.