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O-Train line · Airport Link

Line 4

South Keys ⇄ Airport ~ Aéroport — 3 stations. Trains run weekdays 6:07 AM – 12:15 AM (after midnight), about every 12 min. The pill below is OC Transpo's own posted alert state for this line, refreshed hourly; the system-wide verdict combines all lines.

Line 4: no disruptions posted (as of last build)

Line 4 schedule

DayFirst tripLast tripFrequencyTrips
Weekdays6:07 AM12:15 AM (after midnight)about every 12 min184
Saturdays6:42 AM12:12 AM (after midnight)about every 24 min89
Sundays7:36 AM11:47 PMabout every 24 min81

Destinations shown on the bus: South Keys · Airport ~ Aéroport

From OC Transpo's published GTFS schedule (S1000524), counted on 2026-10-27 / 2026-10-24 / 2026-10-25. Frequency is the typical daytime gap between departures in the busier direction. Planned times, not live — holidays and detours differ.

Stations on Line 4

Station 3069

Uplands

2 connecting bus routes

Station 3038

South Keys

21 connecting bus routes

Station 3039

Airport ~ Aéroport

1 connecting bus route

All O-Train stations · Current alerts · Daily status archive