Air Canada
flight
AC 3668:
Chicago O'Hare - Denver
Chicago O'Hare - Denver
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-02-18 through 2026-02-19
Mon
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Tue
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Wed
Thu
Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 1883)
Duration: 2:55, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-02-26 through 2026-02-27
Mon
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Tue
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Wed
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Thu
Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 1883)
Duration: 2:55, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-03-12 through 2026-03-15
Mon
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Tue
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Wed
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Thu
Fri
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Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 270)
Duration: 2:55, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-03-20 through 2026-03-23
Mon
Tue
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Wed
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Thu
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Fri
Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 270)
Duration: 2:55, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Operates only on 2026-05-08
Mon
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Tue
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Wed
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Thu
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Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 742)
Duration: 2:37, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC3668
Operates only on 2026-05-16
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by United Airlines.
(UA 742)
Duration: 2:37, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC3668
Operates only on 2026-04-21
Mon
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Tue
Wed
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Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-05-01 through 2026-05-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-05-09 through 2026-05-15
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-05-17 through 2026-05-21
Mon
Tue
Wed
Thu
Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Operates only on 2026-06-07
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-06-23 through 2026-06-25
Mon
-
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Tue
Wed
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Thu
Fri
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Sat
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Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-07-02 through 2026-07-04
Mon
-
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Tue
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Wed
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Thu
Fri
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Sat
Sun
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-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-07-10 through 2026-07-12
Mon
-
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Tue
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Wed
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Thu
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Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-07-19 through 2026-07-22
Mon
Tue
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-
Wed
Thu
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Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-07-27 through 2026-08-02
Mon
Tue
-
-
Wed
Thu
Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-08-04 through 2026-08-10
Mon
Tue
Wed
-
-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-08-12 through 2026-08-19
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-08-20 through 2026-08-29
Mon
-
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Tue
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Wed
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Thu
Fri
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-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-08-30 through 2026-09-02
Mon
-
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Tue
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Wed
Thu
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Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-09-07 through 2026-09-10
Mon
Tue
-
-
Wed
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-09-15 through 2026-09-19
Mon
-
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Tue
Wed
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Thu
Fri
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-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-09-25 through 2026-10-01
Mon
-
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Tue
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Wed
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Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-10-03 through 2026-10-05
Mon
Tue
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Wed
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Thu
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Fri
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-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-10-11 through 2026-10-18
Mon
-
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Tue
Wed
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Thu
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Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-10-21 through 2026-10-28
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective from 2026-10-29
Mon
-
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Tue
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Wed
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Thu
Fri
Sat
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Sun
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-
Codeshare flight, operated by United Airlines.
(UA 609)
Duration: 2:38, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-01-02 through 2026-01-04
Mon
-
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Tue
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Wed
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Thu
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Fri
Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 1485)
Duration: 2:58, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-01-06 through 2026-01-09
Mon
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Tue
Wed
Thu
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Fri
Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:58, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-01-14 through 2026-01-19
Mon
Tue
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Wed
Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:58, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-01-22 through 2026-01-25
Mon
-
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Tue
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Wed
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Thu
Fri
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Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:58, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-01-30 through 2026-02-06
Mon
-
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Tue
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Wed
Thu
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Fri
Sat
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Sun
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-
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:58, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-02-08 through 2026-02-09
Mon
Tue
-
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Wed
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Thu
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Fri
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Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:58, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-02-14 through 2026-02-17
Mon
Tue
Wed
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Thu
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Fri
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-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:56, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-02-22 through 2026-02-24
Mon
-
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Tue
Wed
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Thu
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Fri
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Sat
-
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Sun
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:56, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-03-06 through 2026-03-11
Mon
Tue
-
-
Wed
Thu
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Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:56, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-03-16 through 2026-03-18
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:56, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-03-24 through 2026-03-28
Mon
-
-
Tue
Wed
Thu
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:56, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-04-04 through 2026-04-05
Mon
-
-
Tue
-
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Wed
-
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Thu
-
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Fri
-
-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:37, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-04-12 through 2026-04-15
Mon
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:37, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Operates only on 2026-04-23
Mon
-
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Tue
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Wed
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Thu
Fri
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-
Sat
-
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Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 2347)
Duration: 2:37, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-05-23 through 2026-05-31
Mon
Tue
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Wed
-
-
Thu
Fri
-
-
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1430)
Duration: 2:53, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-06-03 through 2026-06-09
Mon
-
-
Tue
Wed
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1430)
Duration: 2:53, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-06-11 through 2026-06-17
Mon
Tue
-
-
Wed
Thu
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 1430)
Duration: 2:53, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3668
Effective 2026-06-21 through 2026-06-24
Mon
-
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Tue
-
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Wed
Thu
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Fri
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Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 1430)
Duration: 2:53, non-stop Airbus A321neo (32Q)
- AC 3668 is a domestic flight departing from the Chicago O'Hare airport (ORD) and arriving at Denver airport (DEN).
- The flight distance is 885 miles, or 1425 km.
- The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-7 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 2:37 and 2:58.