YOW Today

Combined OTP
Flights Today
Major Delays
Dep 30+ min late
Best Window
5am - 9am
100% 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 100%. Evening (6pm - 10pm) drops to 62%. That is a 38-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.

Airline Performance at YOW

Air Transat is the most reliable carrier at YOW with 73% on-time. Porter Airlines runs 70%. That is a 3-point spread. If you have a choice, the airline matters.

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 Evening is a 38-point swing at YOW. The early morning block runs at 100%. If you have any say in your departure time, this is the biggest thing you can control.

5am - 9am
Early Morning
100%
Best window
9am - 12pm
Late Morning
90%
Best window
12pm - 3pm
Midday
88%
Best window
3pm - 6pm
Afternoon
92%
Best window
6pm - 10pm
Evening
62%
Risky
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

This week is 4 points worse on departures (80% vs 84%). Arrivals roughly the same. Wed was the worst day, Sat the best.

Dep OTP
80%
-4%
Last week: 84%
Arr OTP
80%
-3%
Last week: 83%

The Bigger Picture

YOW has been bouncing between 46% and 96%. Best day was Jun 3 at 96%. Worst was Mar 22 at 46%. The norm is 80-86%, which is just how YOW runs.

About YOW Delays

Ottawa Macdonald-Cartier International Airport has averaged 80% on-time departures this week, making it moderately reliable. Performance varies by time of day and weather conditions.

Ottawa Macdonald-Cartier International Airport is one of 179 FAA-monitored airports with real-time delay tracking. Data includes departure and arrival on-time percentages, updated every 15 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 15 minutes.