Air Canada flight AC 3974: Denver - Tucson

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 07:45 Denver (DEN) 09:59 Tucson (TUS)
AC 3974 Non-stop Canadair CRJ 700 (CR7) 2:14 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 4637)
Mon-Fri 07:45 Denver (DEN) 10:00 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:15 Effective 2026-01-07 through 2026-01-16
Codeshare flight, operated by United Airlines.(UA 5716)
Sat,Sun 07:45 Denver (DEN) 10:00 Tucson (TUS)
AC 3974 Non-stop Canadair CRJ 700 (CR7) 2:15 Effective 2026-01-10 through 2026-01-17
Codeshare flight, operated by United Airlines.(UA 5716)
Tue-Fri,Sun 07:45 Denver (DEN) 10:00 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:15 Effective 2026-01-18 through 2026-01-23
Codeshare flight, operated by United Airlines.(UA 5716)
Mon,Sat,Sun 07:45 Denver (DEN) 10:00 Tucson (TUS)
AC 3974 Non-stop Canadair CRJ 700 (CR7) 2:15 Effective 2026-01-19 through 2026-01-25
Codeshare flight, operated by United Airlines.(UA 5716)
Mon-Fri 07:45 Denver (DEN) 10:00 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:15 Effective 2026-01-26 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 5716)
Sat,Sun 07:45 Denver (DEN) 10:00 Tucson (TUS)
AC 3974 Non-stop Canadair CRJ 700 (CR7) 2:15 Effective 2026-01-31 through 2026-02-08
Codeshare flight, operated by United Airlines.(UA 5716)
Mon-Fri 07:45 Denver (DEN) 10:00 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:15 Effective 2026-02-05 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 5716)
Daily 07:45 Denver (DEN) 10:04 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:19 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 5686)
Thu-Sat 07:45 Denver (DEN) 10:01 Tucson (TUS)
AC 3974 Non-stop Canadair CRJ 700 (CR7) 2:16 Effective 2026-03-05 through 2026-03-07
Codeshare flight, operated by United Airlines.(UA 5686)
Daily 07:45 Denver (DEN) 09:01 Tucson (TUS)
AC 3974 Non-stop Canadair CRJ 700 (CR7) 2:16 Effective 2026-03-08 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 5686)
Daily 07:45 Denver (DEN) 08:59 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:14 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 5686)
Daily 07:45 Denver (DEN) 09:02 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:17 Effective from 2026-10-25
Codeshare flight, operated by United Airlines.(UA 5686)
Tue 07:48 Denver (DEN) 10:00 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:12 Operates only on 2026-01-06
Codeshare flight, operated by United Airlines.(UA 5716)
Daily 07:50 Denver (DEN) 09:01 Tucson (TUS)
AC 3974 Non-stop Embraer EMB 175 (E7W) 2:11 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 5686)
Daily 16:00 Chicago O'Hare (ORD) 2 18:20 Cincinnati (CVG)
AC 3974 Non-stop Embraer EMB 175 (E7W) 1:20 Effective 2026-05-21 through 2026-10-24
Codeshare flight, operated by United Airlines.(UA 3597)
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Air Canada flight AC 3974:
Denver - Tucson
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

09:59
Tucson (TUS)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4637)
Duration: 2:14, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:00
Tucson (TUS)
Effective 2026-01-07 through 2026-01-16
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5716)
Duration: 2:15, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:00
Tucson (TUS)
Effective 2026-01-10 through 2026-01-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5716)
Duration: 2:15, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:00
Tucson (TUS)
Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 5716)
Duration: 2:15, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:00
Tucson (TUS)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5716)
Duration: 2:15, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:00
Tucson (TUS)
Effective 2026-01-26 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5716)
Duration: 2:15, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:00
Tucson (TUS)
Effective 2026-01-31 through 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5716)
Duration: 2:15, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:00
Tucson (TUS)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5716)
Duration: 2:15, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:04
Tucson (TUS)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5686)
Duration: 2:19, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

10:01
Tucson (TUS)
Effective 2026-03-05 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 5686)
Duration: 2:16, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

09:01
Tucson (TUS)
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5686)
Duration: 2:16, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

08:59
Tucson (TUS)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5686)
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
07:45
Denver (DEN)

09:02
Tucson (TUS)
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5686)
Duration: 2:17, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
07:48
Denver (DEN)

10:00
Tucson (TUS)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 5716)
Duration: 2:12, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
07:50
Denver (DEN)

09:01
Tucson (TUS)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5686)
Duration: 2:11, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC3974
16:00
Chicago O'Hare (ORD) 2

18:20
Cincinnati (CVG)
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 3597)
Duration: 1:20, non-stop
Embraer EMB 175 (E7W)
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Parallax here DEN-TUS
  • AC 3974 is a domestic flight departing from the Denver airport (DEN) and arriving at Tucson airport (TUS).
  • The flight distance is 639 miles, or 1028 km.
  • The timezone of both the departure and the arrival airports is UTC-7 . Current time at both airports is (loading...).
  • For direct flights, the flight time varies between 1:20 and 2:19.
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