United Airlines flight UA 1223: Saint Maarten - Washington Dulles

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 15:50 Saint Maarten (SXM) 20:17 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:27 Effective 2026-03-29 through 2026-04-05
Wed,Sat 15:50 Saint Maarten (SXM) 20:17 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:27 Effective 2026-04-08 through 2026-05-02
Sat 15:50 Saint Maarten (SXM) 20:17 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:27 Effective 2026-05-09 through 2026-05-16
Mon,Tue,Thu,Fri 15:50 Saint Maarten (SXM) 20:17 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:27 Effective 2026-05-21 through 2026-08-10
Mon-Fri 15:55 Saint Maarten (SXM) 20:30 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2026-03-09 through 2026-03-27
Wed,Sat,Sun 15:55 Saint Maarten (SXM) 20:20 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:25 Effective 2026-05-23 through 2026-08-09
Sat,Sun 16:00 Saint Maarten (SXM) 20:35 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2026-03-08 through 2026-03-28
Mon-Fri 16:55 Saint Maarten (SXM) 20:30 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Valid until 2026-01-05
Sun 16:55 Saint Maarten (SXM) 20:30 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2026-01-11 through 2026-03-01
Thu,Fri 16:55 Saint Maarten (SXM) 20:30 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2026-03-05 through 2026-03-06
Sat,Sun 17:00 Saint Maarten (SXM) 20:35 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Valid until 2026-01-10
Sat 17:00 Saint Maarten (SXM) 20:35 Washington Dulles (IAD)
UA 1223 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2026-01-17 through 2026-03-07


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United Airlines flight UA 1223:
Saint Maarten - Washington Dulles
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1223
15:50
Saint Maarten (SXM)

20:17
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-04-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:27, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
15:50
Saint Maarten (SXM)

20:17
Washington Dulles (IAD)
Effective 2026-04-08 through 2026-05-02
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:27, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
15:50
Saint Maarten (SXM)

20:17
Washington Dulles (IAD)
Effective 2026-05-09 through 2026-05-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:27, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
15:50
Saint Maarten (SXM)

20:17
Washington Dulles (IAD)
Effective 2026-05-21 through 2026-08-10
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:27, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
15:55
Saint Maarten (SXM)

20:30
Washington Dulles (IAD)
Effective 2026-03-09 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
15:55
Saint Maarten (SXM)

20:20
Washington Dulles (IAD)
Effective 2026-05-23 through 2026-08-09
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Duration: 4:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
16:00
Saint Maarten (SXM)

20:35
Washington Dulles (IAD)
Effective 2026-03-08 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
16:55
Saint Maarten (SXM)

20:30
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
16:55
Saint Maarten (SXM)

20:30
Washington Dulles (IAD)
Effective 2026-01-11 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
16:55
Saint Maarten (SXM)

20:30
Washington Dulles (IAD)
Effective 2026-03-05 through 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
17:00
Saint Maarten (SXM)

20:35
Washington Dulles (IAD)
Valid until 2026-01-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA1223
17:00
Saint Maarten (SXM)

20:35
Washington Dulles (IAD)
Effective 2026-01-17 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)
  • UA 1223 is an international flight departing from Saint Maarten airport, Sint Maarten (SXM) and arriving at Washington Dulles airport, United States (IAD).
  • The flight distance is 1681 miles, or 2705 km.
  • The timezone of the departure airport is UTC-4 , 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 4:25 and 4:35.
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