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(AC) Air Canada 3974 Flight Tracker
Flight Status
AC 3974
Air Canada
DEN
Denver
TUS
Tucson
Operated by SkyWest Airlines on behalf of United Airlines 4637
Arrived
On time
DEN
Denver, CO, US
Denver International Airport
Flight Departure Times
01-Jan-2026
Scheduled
07:45
MST
Actual
07:49
MST
Terminal
N/A
Gate
B55
TUS
Tucson, AZ, US
Tucson International Airport
Flight Arrival Times
01-Jan-2026
Scheduled
09:59
MST
Actual
09:58
MST
Terminal
N/A
Gate
A8
Baggage
7
VIEW FLIGHT DETAILS
ON-TIME PERFORMANCE
AIRPORT DELAYS
DEN AIRPORT CONDITIONS
TUS AIRPORT CONDITIONS
REFRESH DATA
Flight Tracker
Positional Tracking Has Ended
The flight has landed
ALTITUDE
0 ft
LANDED
Flight Time
Total
2h 9m
Elapsed
2h 9m
Remaining
0m
Flight Distance
Total
0
Flown
0
Remaining
0
Additional Details
This Flight Also Marketed As
Codeshare Airline
United Airlines
Flight Number
(UA) 4637
Aircraft Equipment
Code
CR7
Description
Canadair (Bombardier) Regional Jet 700 and Challenger 870
Past and Upcoming Flights
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01-Jan
29-Dec
30-Dec
31-Dec
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02-Jan
03-Jan
04-Jan
Flights for Monday, 29-Dec-2025
Departure Time
Origin
Destination
Arrival Time
07:45
MST
DEN
Denver
TUS
Tucson
09:59
MST
Flights for Tuesday, 30-Dec-2025
Departure Time
Origin
Destination
Arrival Time
07:45
MST
DEN
Denver
TUS
Tucson
09:59
MST
Flights for Wednesday, 31-Dec-2025
Departure Time
Origin
Destination
Arrival Time
07:45
MST
DEN
Denver
TUS
Tucson
09:59
MST
Flights for Thursday, 01-Jan-2026
Departure Time
Origin
Destination
Arrival Time
07:45
MST
DEN
Denver
TUS
Tucson
09:59
MST
Flights for Friday, 02-Jan-2026
Departure Time
Origin
Destination
Arrival Time
07:45
MST
DEN
Denver
TUS
Tucson
09:59
MST
Flights for Saturday, 03-Jan-2026
Departure Time
Origin
Destination
Arrival Time
07:45
MST
DEN
Denver
TUS
Tucson
09:59
MST
Flights for Sunday, 04-Jan-2026
No Flight Information Available
According to our data, this flight is not scheduled to fly on this date
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