Right Now

YOW Today

Combined OTP
Flights Today
Major Delays
Dep 30+ min late
Best Window
6pm - 10pm
81% OTP
When to Fly

Pick Your Window

5am - 9am
Early Morning
?
No data
9am - 12pm
Late Morning
56%
Risky
12pm - 3pm
Midday
28%
Avoid
3pm - 6pm
Afternoon
45%
Avoid
6pm - 10pm
Evening
81%
Best window
Full hourly breakdown
77
81
55
50
100
51
17
11
17
55
45
49
40
83
79
91
70
70
76
12a 1 2 3 4 5 6 7 8 9 10 11 12p 1 2 3 4 5 6 7 8 9 10 11
Today

Through the Day

This Week

vs Last Week

Tracking about the same as last week. Departures at 59%, last week 58%. Arrivals roughly the same. Sat was the worst day, Mon the best.

Dep OTP
59%
+1%
Last week: 58%
Arr OTP
73%
-1%
Last week: 74%
Past 30 Days

The Bigger Picture

YOW has been bouncing between 36% and 90%. Best day was Mar 10 at 90%. Worst was Mar 14 at 36%. The norm is 62-68%, which is just how YOW runs.

FAQ

About YOW Delays

Ottawa Macdonald-Cartier International Airport has averaged 59% on-time departures this week, making it frequently delayed. Performance varies by time of day and weather conditions.

Ottawa Macdonald-Cartier International Airport is one of 179 FAA-monitored US airports with real-time delay tracking. Data includes departure and arrival on-time percentages, updated every 5 minutes, with historical trends available for the past 90 days.

Nearby alternatives include YUL (Montreal / Pierre Elliott Trudeau International Airport). When YOW is experiencing delays, these airports may offer better on-time performance.

Early morning departures from Ottawa Macdonald-Cartier International Airport typically have the highest on-time rates. Delays tend to accumulate throughout the day as cascading effects from earlier disruptions compound. Check the 24-hour trend chart above for today's pattern.

YOW Live Flights → YOW Routes → Delay Dashboard →
Source: FAA. Updated every 5 minutes.