All booths in hall A are open, with employees working at full tilt to deal with requests.
The airport has been receiving record-breaking numbers of passengers in recent days, reaching around 104,000 people in a single day, a 40 percent increase from the same period in 2019, before Covid-19 hit.
The sheer flow of people has exceeded the designed capacity for the airport's T1 domestic terminal at 100,000 passengers a day.
Some people only realized they were missing certain documents when they arrived at the airport, calling on family members for help.
The security gates at hall E are packed, with each passenger taking around five to 10 minutes to pass security clearance.
People line up as they wait to check in. Among them are several students enjoying a summer vacation with their families.
Some people take a nap at the airport.
Nguyen Thi Kim Ngan, deputy director of Noi Bai airport, said it is usually most crowded during certain hours and on the weekends. Now that Covid-19 has been put under control and holidays are coming up, crowds are present throughout the week.
It is expected that starting July, when more international airlines resume operation, there will be even more passengers than before, reaching 110,000 people a day.
The parking lot, which spans 17,800 square meters and has around 555 spots, is constantly full.
The airport has deployed extra security measures to regulate the flow of traffic coming in and out. In future, an electronic toll collection system would be in place to smoothen traffic and prevent congestion.
