40–50 minutes from MAD to Alcalá without going through central Madrid
Interurban Bus 824 runs straight from Adolfo Suárez Madrid–Barajas (T1–T2–T3 and T4) to Alcalá de Henares in about 40–50 minutes, traffic depending. It skips the usual airport–city transfer mess at Avenida de América, so you roll your bags off the plane and go almost point to point. If you’re heading to the university area or staying in Alcalá instead of Madrid, this cuts out a full leg of Metro or Cercanías.
Basic facts: stops, fares, and tickets
Line 824 is a regional interurban route with a one‑way fare to Alcalá in the €3–4 range, based on CRTM’s fare bands for that zone. The bus stops at both the T1–T2–T3 side and T4 side of the airport; look for green CRTM interurban signs rather than the yellow airport express branding. Because it’s interurban, standard single Metro tickets don’t work here, so plan for a multi‑zone card or pay the driver.
Frequency and timing
Daytime peak frequency sits at roughly every 30 minutes, with longer gaps off‑peak and on weekends. Reddit users report that if you miss one at T4, you can easily end up waiting 30+ minutes on the curb. Flights landing after 22:00 or before 06:00 can be risky for 824, so double‑check the CRTM timetable for your exact date, not just a generic weekday chart.
Step-by-step: catching 824 from the airport
- 1. After landing at MAD, follow exits to arrivals in T1–T2–T3 or T4, depending on your flight.
- 2. Head outside and look specifically for green “Interurbanos” signs; ignore the bright yellow Airport Express bus stops.
- 3. Find the stop listing “824 Alcalá de Henares” on the posted timetable; the line number should be in large digits.
- 4. Have €4 in coins or a topped‑up multi‑zone transport card ready before the bus pulls in.
- 5. When the bus arrives, ask the driver “¿Va a Alcalá?” and listen for a quick “sí”; regulars do this because some runs may short‑turn.
- 6. Pay or validate as you board, then keep your ticket until you get off in Alcalá de Henares.
- 7. Get off at your closest stop in Alcalá (station, university campus, or town center) and check Google Maps live to avoid overshooting.
What regulars do, and what to watch out for
Students who commute from Alcalá often line up their flights with the 824 timetable on the CRTM site, then keep a plan B: the Madrid Airport Express to Avenida de América plus ALSA bus or Cercanías train. Watch for two things: poorly marked stops in English and the interurban fare rule, which means some Madrid passes don’t cover 824. Practical tip: screenshot the timetable and the stop name in Spanish, then ask the driver or a local, instead of trying to rely on the sometimes patchy airport signage.