Most of them slept on bare floor overnight at the lounge of Sheraton Hotel.
The airline could only secure accommodation for 150 of the passengers.
According to one of the passengers, their BA flight from London could not land in Lagos because of landing facility problem by 5pm on Wednesday.
The flight was later diverted to Abuja where the passengers were evacuated to Sheraton Hotel.
The passenger, who preferred reference to her first name( Joke), said: “We were 321 but the hotel could accommodate only 150 because we were brought in without notice.
“The majority ended up spending the night on barefloor at the lounge of the hotel.
“We are begging the government to intervene because most of the passengers are Nigerians. We want BA to treat us with courtesy.”