ITA Airways
flight
AZ 4389:
Denver - Washington Dulles
Denver - Washington Dulles
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FLIGHT SCHEDULE
Direct Codeshare Flights:
ITA Airways AZ4389
Effective 2026-03-01 through 2026-03-05
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Codeshare flight, operated by United Airlines.
(UA 351)
Duration: 3:20, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
ITA Airways AZ4389
Effective 2026-03-10 through 2026-03-26
Mon
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Wed
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Codeshare flight, operated by United Airlines.
(UA 351)
Duration: 3:20, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
ITA Airways AZ4389
Effective 2026-03-15 through 2026-03-22
Mon
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Sun
Codeshare flight, operated by United Airlines.
(UA 1101)
Duration: 3:22, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
ITA Airways AZ4389
Effective 2026-03-29 through 2026-04-28
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 1101)
Duration: 3:29, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
ITA Airways AZ4389
Operates only on 2026-03-08
Mon
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Wed
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Fri
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Sat
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Sun
Codeshare flight, operated by United Airlines.
(UA 1101)
Duration: 3:22, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
ITA Airways AZ4389
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 1101)
Duration: 3:17, non-stop Airbus A321neo (32Q)
Direct Codeshare Flights:
ITA Airways AZ4389
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 1101)
Duration: 3:17, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
ITA Airways AZ4389
Effective 2026-06-01 through 2026-09-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 1101)
Duration: 3:17, non-stop Boeing 737-900 (739)
Direct Codeshare Flights:
ITA Airways AZ4389
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 1101)
Duration: 3:17, non-stop Boeing 737-900 (739)
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Parallax here DEN-IAD
- AZ 4389 is a domestic flight departing from the Denver airport (DEN) and arriving at Washington Dulles airport (IAD).
- The flight distance is 1448 miles, or 2331 km.
- The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-5 . 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 3:17 and 3:29.