Ligne 20

Staff use it: Ligne 20 is the early/late option

Ligne 20 runs between Brest Bretagne Airport (BES, T1) and town in about 30 minutes, and locals plus airport staff lean on it when other buses thin out at the edges of the day. A single ticket costs 1,70€ on the regular Bibus fare system, so it undercuts taxis by a long way if your timing lines up with its variable schedule.

The bus stop sits right outside T1 arrivals, signed for Bibus services, so you’re on the pavement with your bag in under 5 minutes once you exit customs. Ligne 20 uses standard city buses, no luggage racks, so plan to keep one suitcase by your knees if the bus fills with commuters heading to work in the suburbs around Brest.

Tickets run on the Bibus network’s normal pricing: 1,70€ for a single ride, with options to buy a ticket from the driver using cash in euros or load passes in advance at Bibus machines in central Brest. One ticket covers about 1 hour of travel, so you can usually connect from Ligne 20 to another bus without paying again if you’re quick.

Frequency is officially "variable" and thins out outside the 07:00–20:00 core of the day, so check the day’s exact timetable on Bibus before banking on it for an early flight out of T1. Expect longer gaps on Sundays and public holidays, and assume that missing one bus could mean a wait of more than 30 minutes when traffic is light.

Step-by-step: using Ligne 20 at Brest Bretagne

• 1. Exit T1 arrivals: Walk straight ahead for about 50 meters to the main bus stands signed "Bus / Bibus."
• 2. Find the Ligne 20 stand: Look for the stop labeled with the number 20 on the pole or shelter; the line number shows on the front of the bus too.
• 3. Buy your ticket: Have at least 2€ in coins or small notes ready if paying the driver the 1,70€ fare; they may refuse large bills like 50€.
• 4. Validate on board: Once you board, stamp or tap your ticket in the orange or yellow validator within the first 30 seconds to avoid any fine during checks.
• 5. Ride for about 30 minutes: Expect a roughly 30-minute run into town, with several suburban stops before you hit denser parts of Brest.
• 6. Connect to other buses or tram: Use the included 1-hour validity to switch to another Bibus line or the tram in central Brest without buying a new ticket.

One tip: Screenshot the day’s Ligne 20 timetable before you land at BES, so a weak 4G signal outside T1 doesn’t leave you guessing when the next bus shows up.