How long is the AC3959 flight?

The timetable allows 2 h 47 min. Chicago to Denver is 1,426 km (886 mi).

Which terminal does AC3959 use?

It usually leaves from Terminal 1 at Chicago O'Hare International Airport (ORD). Check the flight card above for today's terminal and gate.

What other flight numbers does AC3959 have?

Also listed as ACA3959 (Air Canada's ICAO code) and AC 3959.

AC3959 Flight Status Air Canada: Chicago to Denver (ACA3959)

Air Canada AC 3959

Landed On Time

ORD Chicago

Scheduled: 13:30
Actual: 13:47

Terminal: 1 | Gate: C19

Departure: Sun, Nov 8, 2026 · local time CST

Chicago O'Hare International Airport (ORD)

All ORD Departures >

DEN Denver

Scheduled: 15:17
Actual: 14:45
Delay

Gate: A20

Arrival: Sun, Nov 8, 2026 · local time MST

Denver International Airport (DEN)

All DEN Arrivals >

Landed 14h 02m ago 100%

ORD 13:47 DEN 14:45

1,426 km (886 mi) flown

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

Add to calendar

Distance: 1426 km / 886 miles · Scheduled Duration: 02:47 · Actual Duration: 01:58

AC 3959 Flight Status & Schedule Air Canada Chicago to Denver

Date	From	To	Departure	Arrival	Status	Details
Nov 08	ORD	DEN	13:47	14:45	Landed	Track >
Nov 06	ORD	DEN	13:46	14:48	Landed	Track >
Nov 04	ORD	DEN	13:44	14:56	Landed	Track >
Nov 02	ORD	DEN	13:57	15:00	Landed	Track >
Oct 30	ORD	DEN	13:17	14:30	Landed	Track >
Oct 28	ORD	DEN	13:53	15:01	Landed	Track >

Air Canada's Chicago–Denver flight covers 1,426 km (886 mi) and runs three times a week: Wednesday, Friday and Sunday. With 2 h 47 min in the timetable and a usual flight time of about 2 h 5 min, it often makes up time. Yesterday it left 17 minutes late and still landed at 14:45, 32 minutes early.

< All Chicago ORD Departures All Denver DEN Arrivals >

About AC 3959

Route: Chicago O'Hare International Airport ORD to Denver International Airport DEN
Distance: 1,426 km (886 mi)
Typical flight time: 2 h 5 min
Flies: Wed, Fri, Sun
On time: 6 of the last 6
Usually departs from: Terminal 1

AC 3959 FAQ

How long is the AC3959 flight?: The timetable allows 2 h 47 min. Chicago to Denver is 1,426 km (886 mi).
How often is AC3959 late?: None of the last 6 flights arrived 15 or more minutes late.
Which days does AC3959 fly?: Three times a week: Wednesday, Friday and Sunday, based on the schedule of the last 7 days.
Which terminal does AC3959 use?: It usually leaves from Terminal 1 at Chicago O'Hare International Airport (ORD). Check the flight card above for today's terminal and gate.
What other flight numbers does AC3959 have?: Also listed as ACA3959 (Air Canada's ICAO code) and AC 3959.

AC3959 and Chicago ORD to Denver DEN Flights

Flight AC3959 is a code-share Air Canada flight of the United Airlines operated UA646.

Other flights departing from Chicago ORD: UA2620, MQ3544, OO5789, OO5855

Other flights arriving at Denver DEN: UA646, WN2638, OO5192

All flights connecting Chicago ORD to Denver DEN.