R$ 4,30 gets you from GIG to Madureira on line 42
Bus 42 – Madureira x Galeão (Parador) is the rock-bottom R$ 4,30 option between Rio de Janeiro–Galeão International Airport and Madureira in the North Zone. This is a standard city bus, not an airport coach, so think basic seats, mixed crowd, and frequent stops rather than luggage racks and AC dialed down for tourists.
The line serves both Terminal 1 and Terminal 2 at GIG, using the regular public bus stops outside the terminal buildings. You pay the R$ 4,30 fare on board in cash (reais) or with Rio’s usual transport cards, just like any other urban line. Build the buffer; this route mixes into city traffic and does not have special express lanes.
From the airport side, line 42 runs out toward Madureira, a hub area in Rio’s North Zone with bus links onward to bairros like Cascadura, Oswaldo Cruz, and surrounding neighborhoods. Expect a slower ride compared with taxis or app cars; depending on traffic across Avenida Brasil and local streets, the trip can stretch well past 45–60 minutes at peak times. You trade time for that R$ 4,30 fare.
This bus usually runs throughout the day, aligned with standard city operating hours, though late-night gaps are common on Rio urban lines after roughly 23:00. If you land on a red-eye into Terminal 2 and your clock says after 22:00, have a backup plan ready in case the headways stretch or the service thins out. Daytime and early evening are safest for catching this line without a long wait.
Comfort level sits at basic city standard: no guaranteed luggage space, locals hopping on and off, and air conditioning that varies by vehicle. Carry small bills for the R$ 4,30 fare and keep your bags compact enough to hold in your lap or at your feet. One practical tip: if you’re on a tight schedule to Madureira or beyond, check app-car prices from GIG first and only pick the 42 if you can afford an extra half-hour (or more) on the road.