Airport to city costs 15-25AZN depending on your destination in the city.
The metro goes many places throughout Baku and it costs only 0.20AZN. It is the least expensive way to get around Baku besides walking. Ask a cashier or attendant. You must obtain a BakÄ± Metropiliten Kart 2AZN refundable deposit and load it like a normal metro pass. Alternatively, you can use a Azerbaycan Sosial KartÄ± like the ones on some Azerbaijani ATM cards. The metro workers will be more than happy to help if spoken to in either Azeri or Russian, and some may understand English.
Be careful when transferring trains at the transfer stations 28 May and Jafar Jabbarli as the signage is not easy to spot.
There have been reports of people being arrested while taking photographs of the metro station.