YOW Today

Combined OTP
Flights Today
Major Delays
Dep 30+ min late
Best Window
5am - 9am
99% OTP

What This Means for You

Delay data is currently unavailable for YOW.

If you can choose your departure time: early morning flights (5am - 9am) run at 99%. Afternoon (3pm - 6pm) drops to 67%. That is a 32-point difference from the same airport on the same day.

Montreal / Pierre Elliott Trudeau International Airport (YUL) is 94 miles away and running 100% today. If your route is available from both airports, YUL is the better bet right now.

YOW Flight Board

Live departures and arrivals at Ottawa Macdonald-Cartier International Airport.

Status Airline Flight Destination Sched Updated Gate
No flights match your search.
No flight data available.

Pick Your Window

Early Morning vs Afternoon is a 32-point swing at YOW. The early morning block runs at 99%. If you have any say in your departure time, this is the biggest thing you can control.

5am - 9am
Early Morning
99%
Best window
9am - 12pm
Late Morning
96%
Best window
12pm - 3pm
Midday
99%
Best window
3pm - 6pm
Afternoon
67%
Decent
6pm - 10pm
Evening
75%
Decent
100
75
100
100
95
100
96
93
100
100
100
96
81
73
46
72
79
79
71
84
71
12a 1 2 3 4 5 6 7 8 9 10 11 12p 1 2 3 4 5 6 7 8 9 10 11

Through the Day

vs Last Week

Tracking about the same as last week. Departures at 88%, last week 87%. Arrivals roughly the same. Fri was the worst day, Wed the best.

Dep OTP
88%
+1%
Last week: 87%
Arr OTP
87%
+2%
Last week: 85%

The Bigger Picture

YOW has been bouncing between 36% and 95%. Best day was Apr 29 at 95%. Worst was Mar 14 at 36%. The norm is 72-78%, which is just how YOW runs.

About YOW Delays

Ottawa Macdonald-Cartier International Airport has averaged 88% on-time departures this week, making it highly reliable. 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.

Source: FAA. Updated every 5 minutes.