You're looking at at least 24 hours of flight, and I doubt you'll be able to find a direct flight so you'll need to include layover time.
The flight from Calgary to Austin is 4 hours long.
it takes a long time
8 hours 24 minutes
About 8.5 hrs as 9 from gatwick
This flight takes about 5 hours.
The average flight time is 15 hours, 34 minutes.
The flight time would be 7 hours.
About 5 hours i think
8 TO 9 HOURS CANADA IS -7 HRS GMT
To go from Calgary, Canada (YYC) to Yellowknife, Canada (YZF) takes around 2h 30m to 3h 30m, depending on route and flight.
A typical flight between Dallas, TX and Calgary, Canada would have a flying time of about 3 hours, 4 minutes.
2742 milesaircraft (550 mph) | 5 hours(WolframAlpha)