United Airlines flight UA 4427: Washington Dulles - Saint Louis

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 08:20 Washington Dulles (IAD) 09:48 Saint Louis (STL) 1
UA 4427 Non-stop Canadair CRJ 550 (CR5) 2:28 Effective from 2026-05-21
Daily 08:35 Washington Dulles (IAD) 10:08 Saint Louis (STL) 1
UA 4427 Non-stop Canadair CRJ 550 (CR5) 2:33 Valid until 2026-01-05
Daily 08:40 Washington Dulles (IAD) 10:13 Saint Louis (STL) 1
UA 4427 Non-stop Canadair CRJ 550 (CR5) 2:33 Effective 2026-01-06 through 2026-02-03
Daily 08:40 Washington Dulles (IAD) 10:13 Saint Louis (STL) 1
UA 4427 Non-stop Canadair CRJ 550 (CR5) 2:33 Effective 2026-02-05 through 2026-03-04
Daily 08:55 Washington Dulles (IAD) 10:27 Saint Louis (STL) 1
UA 4427 Non-stop Canadair CRJ 550 (CR5) 2:32 Effective 2026-03-05 through 2026-03-28
Daily 08:55 Washington Dulles (IAD) 10:23 Saint Louis (STL) 1
UA 4427 Non-stop Canadair CRJ 550 (CR5) 2:28 Effective 2026-03-29 through 2026-04-29
Daily 09:00 Washington Dulles (IAD) 10:28 Saint Louis (STL) 1
UA 4427 Non-stop Canadair CRJ 550 (CR5) 2:28 Effective 2026-04-30 through 2026-05-20
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United Airlines flight UA 4427:
Washington Dulles - Saint Louis
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4427
08:20
Washington Dulles (IAD)

09:48
Saint Louis (STL) 1
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:28, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4427
08:35
Washington Dulles (IAD)

10:08
Saint Louis (STL) 1
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:33, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4427
08:40
Washington Dulles (IAD)

10:13
Saint Louis (STL) 1
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:33, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4427
08:40
Washington Dulles (IAD)

10:13
Saint Louis (STL) 1
Effective 2026-02-05 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:33, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4427
08:55
Washington Dulles (IAD)

10:27
Saint Louis (STL) 1
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:32, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4427
08:55
Washington Dulles (IAD)

10:23
Saint Louis (STL) 1
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:28, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4427
09:00
Washington Dulles (IAD)

10:28
Saint Louis (STL) 1
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:28, non-stop
Canadair CRJ 550 (CR5)
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  • UA 4427 is a domestic flight departing from the Washington Dulles airport (IAD) and arriving at Saint Louis airport (STL).
  • The flight distance is 694 miles, or 1117 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-6 . 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 2:28 and 2:33.
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