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No 4 trips cancelled nowCancellations →

4

Line 4: South Keys ⇄ Airport ~ Aéroport

Every 12 min

Toward South Keysboards at · under each stop: the next bus (live dot = live, grey = sched.)
  1. AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD9 min sched.
  2. UPLANDS O-TRAIN NORTH / NORD2 min sched.
  3. SOUTH KEYS O-TRAIN NORTH / NORD5 min sched.
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Where lateness is made ·

Not measured yet: too few weekdays with bus positions on this stretch.

The line right now · 8:04 a.m.

The line right now · 8:04 a.m.

Train positions are not published; next scheduled 8:06 a.m.

Toward South Keysboards at · under each stop: the next bus (live dot = live, grey = sched.)
  1. AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD9 min sched.
  2. UPLANDS O-TRAIN NORTH / NORD2 min sched.
  3. SOUTH KEYS O-TRAIN NORTH / NORD5 min sched.
Toward Airport ~ Aéroportboards at · under each stop: the next bus (live dot = live, grey = sched.)
  1. SOUTH KEYS O-TRAIN SOUTH / SUD9 min sched.
  2. UPLANDS O-TRAIN SOUTH / SUD2 min sched.
  3. AIRPORT O-TRAIN NORTH / AÉROPORT O-TRAIN NORD5 min sched.

Stops and scheduled times from OC Transpo’s timetable (GTFS, 2026-10-30). Every time under a stop is from the timetable (sched.), not a prediction.

Right now on Route 4

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0 noticesfrom OC Transpo
Planned change · 2026-10-30service change
More on Route 4
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No 4 trips cancelled nowCancellations →

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Planned change · 2026-10-30service change

Would you count on route 4?

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Cancellations on this route

How cancellations are counted

2 partial-capture days not counted.

No counted cancellations on this route in the last four weeks. Notices we could not check would be listed below.

City road work near this route

All road work on Alerts

Road work and event closures the City of Ottawa has published, measured as near this route’s path. Near is not proof that the bus is detoured: check the operator’s alerts for that.

No City road work is listed near this route right now.

Source: City of Ottawa open data. City road work map

More on Route 4

  • Other daysOctober 2026
    Days →
  • Today’s timelineArchived bus positions in Replay
    Replay →
  • Road work on this routeStops moved and time added by road work
    Works →
  • Service change scorecardHow a service change did
    Scorecard →
  • Crowding and service deliverySTO crowding, rail, trips delivered
    Crowding →
  • Where the numbers come fromOC Transpo timetable and live bus positions
    Sources →
  • Page not loading?The timetable still opens
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  • Full report card
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  • Fix this routePropose a change to this route in Design the network
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  • Change this routeDraw a different route or timetable in Design the network
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