The deal is worth more than USD 8 billion deal at list prices, Boeing said in a statement. Airlines typically receive discounts on orders.
"We look forward to making history with China Eastern as they are poised to make the largest purchase for single-aisle airplanes by a Chinese airline," said Ihssane Mounir, vice president of Sales and Marketing for Northeast Asia.
Boeing did not provide details on the number of planes ordered by model or delivery dates.
China Eastern, headquartered in Shanghai, operates a fleet of Boeing and Airbus aircraft.