The Murtala Muhammed International Airport (MMIA), Lagos and the Port-Harcourt International Airport (PHIA) have been ranked amongst the 20 worst airports in the world.

The 2017 report released by The Guide to Sleeping in Airports shows that Port-Harcourt airport was ranked as the third worst airport in the world while the MMIA, Lagos emerged as the fifth worst airport in the world.

The Guide to Sleeping in Airports is an organization that focuses on conducting airport reviews on a yearly basis to ascertain the best and worst airports in the world. It gathers its findings from passengers and also gives tips for sleeping in the airport or while stuck in the airport during transit, weather or ailing delays.

The overall experience was based on these factors:

Comfort (Gate seating & availability of rest zones)
Services, facilities & things to do
Food options
Immigration/Security
Customer service
Cleanliness
Navigation and ease of transit
Sleepability
The report reads in parts: “Apparently things haven’t changed much at Port Harcourt Airport, as it ranked third worst for overall passenger experience. This year’s survey respondents indicated that aggressive corruption is the biggest problem, with airport officials and staff allegedly demanding bribes for pretty much everything”.

Other complaints included lack of bathroom facilities, lack of air conditioning, horrible baggage handling, and the tent that serves as the arrivals terminal.

In the case of MMIA, the report also said corruption is the number one traveller complaint about Lagos Airport. This is in addition to “filthy bathrooms, limited seating, archaic check-in procedures, sporadic air conditioning, and lousy customer service, and you’re not likely to enjoy your time here”.

Debunking the report, the Federal Airports Authority of Nigeria (FAAN) said that the survey conducted by The Guild to Sleeping in Airports failed to reflect that Port Harcourt Airport terminal is currently under construction.

According to FAAN, the recently implemented executive order issued by the Federal Government has drastically helped in boosting passengers’ experiences at the MMIA, noting that it was not acknowledged by the report.

1. Juba International Airport, South Sudan (JUB)

2. Jeddah King Abdulaziz International Airport, Saudi Arabia (JED)

3. Port Harcourt International Airport, Nigeria (PHC)

4. Crete Heraklion International Airport, Greece (HER)

5. Lagos Murtala Muhammed International Airport, Nigeria (LOS)

6. Santorini Thira National Airport, Greece (JTR)

7. Dar es Salaam Julius Nyerere International Airport, Tanzania (DAR)

8. Rhodes International Airport, Greece (RHO)

9. Paris Beauvais-Tille Airport, France (BVA)

10. Tashkent International Airport, Uzbekistan (TAS)

SOURCE: https://brandspurng.com/lagos-port-harcourt-airports-ranked-amongst-20-worst-airports-in-the-world/

Having frequented both airports and others elsewhere I can confirm this to be true
But atleast ph and eko made the list some airports in Nigeria are so bad the organisers didn't realise they were airports.

...what happened to the tranformation agenda of the past GEJ administration on airports and the plan to build an international airport in every state of the federation....