ITA Airways
flight
AZ 4401:
Washington Dulles - Denver
Washington Dulles - Denver
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FLIGHT SCHEDULE
Direct Codeshare Flights:
ITA Airways AZ4401
Effective 2026-05-01 through 2026-05-19
Mon
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Tue
Wed
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Thu
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Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 599)
Duration: 4:08, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
ITA Airways AZ4401
Effective 2026-05-22 through 2026-05-31
Mon
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Tue
Wed
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Thu
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Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 599)
Duration: 3:46, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
ITA Airways AZ4401
Effective 2026-06-01 through 2026-09-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 599)
Duration: 3:46, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
ITA Airways AZ4401
Effective 2026-10-02 through 2026-10-24
Mon
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Tue
Wed
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Thu
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Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 599)
Duration: 3:46, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
ITA Airways AZ4401
Effective 2026-03-01 through 2026-03-03
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 2693)
Duration: 4:21, non-stop Boeing 757-300 (753)
Direct Codeshare Flights:
ITA Airways AZ4401
Effective 2026-03-05 through 2026-03-26
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 599)
Duration: 4:21, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
ITA Airways AZ4401
Effective 2026-03-29 through 2026-04-28
Mon
-
-
Tue
Wed
-
-
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 599)
Duration: 4:08, non-stop Boeing 757-300 (753)
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Parallax here IAD-DEN
- AZ 4401 is a domestic flight departing from the Washington Dulles airport (IAD) and arriving at Denver airport (DEN).
- The flight distance is 1448 miles, or 2331 km.
- The timezone of the departure airport is UTC-5 , 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 3:46 and 4:21.