Austrian flight OS 7703: Chicago O'Hare - Seattle-Tacoma

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Tue,Thu-Sun 16:10 Chicago O'Hare (ORD) 1 18:52 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A320 (320) 4:42 Valid until 2025-05-20
Codeshare flight, operated by United Airlines.(UA 2278)
Mon,Tue,Thu-Sun 16:10 Chicago O'Hare (ORD) 1 18:53 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A321neo (32Q) 4:43 Effective 2025-05-22 through 2025-06-24
Codeshare flight, operated by United Airlines.(UA 2278)
Mon,Tue,Thu-Sun 16:10 Chicago O'Hare (ORD) 1 18:49 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A321neo (32Q) 4:39 Effective 2025-08-19 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 2278)
Mon,Tue,Thu-Sun 16:15 Chicago O'Hare (ORD) 1 18:58 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A321neo (32Q) 4:43 Effective 2025-06-26 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 2278)
Mon,Wed,Fri 16:15 Chicago O'Hare (ORD) 1 18:59 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A320 (320) 4:44 Effective 2025-11-03 through 2025-12-01
Codeshare flight, operated by United Airlines.(UA 2278)
Mon,Wed,Fri-Sun 16:15 Chicago O'Hare (ORD) 1 18:59 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A320 (320) 4:44 Effective 2025-12-19 through 2026-01-02
Codeshare flight, operated by United Airlines.(UA 2278)
Mon 16:15 Chicago O'Hare (ORD) 1 18:59 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A320 (320) 4:44 Operates only on 2026-01-05
Codeshare flight, operated by United Airlines.(UA 2278)
Mon,Wed,Fri 16:15 Chicago O'Hare (ORD) 1 18:59 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A320 (320) 4:44 Effective 2026-02-13 through 2026-02-20
Codeshare flight, operated by United Airlines.(UA 2278)
Mon,Wed,Fri,Sun 16:15 Chicago O'Hare (ORD) 1 18:59 Seattle-Tacoma (SEA)
OS 7703 Non-stop Airbus A320 (320) 4:44 Effective from 2026-02-22
Codeshare flight, operated by United Airlines.(UA 2278)
Mon,Wed,Fri 19:55 Chicago O'Hare (ORD) 1 22:29 Seattle-Tacoma (SEA)
OS 7703 Non-stop Boeing 737 MAX 8 (7M8) 4:34 Effective 2025-10-27 through 2025-10-31
Codeshare flight, operated by United Airlines.(UA 2211)
Mon,Wed,Fri-Sun 19:55 Chicago O'Hare (ORD) 1 22:29 Seattle-Tacoma (SEA)
OS 7703 Non-stop Boeing 737 MAX 8 (7M8) 4:34 Effective 2025-12-03 through 2025-12-17
Codeshare flight, operated by United Airlines.(UA 2211)
Mon,Wed,Fri,Sun 19:55 Chicago O'Hare (ORD) 1 22:29 Seattle-Tacoma (SEA)
OS 7703 Non-stop Boeing 737 MAX 8 (7M8) 4:34 Effective 2026-01-07 through 2026-01-16
Codeshare flight, operated by United Airlines.(UA 2211)
Mon,Wed,Fri,Sun 19:55 Chicago O'Hare (ORD) 1 22:29 Seattle-Tacoma (SEA)
OS 7703 Non-stop Boeing 737 MAX 8 (7M8) 4:34 Effective 2026-01-19 through 2026-01-30
Codeshare flight, operated by United Airlines.(UA 2211)
Mon,Wed,Fri,Sun 19:55 Chicago O'Hare (ORD) 1 22:29 Seattle-Tacoma (SEA)
OS 7703 Non-stop Boeing 737 MAX 8 (7M8) 4:34 Effective 2026-02-02 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 2211)
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Austrian flight OS 7703:
Chicago O'Hare - Seattle-Tacoma
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Austrian OS7703
Valid until 2025-05-20
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:42, non-stop
Airbus A320 (320)

Austrian OS7703
Effective 2025-05-22 through 2025-06-24
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:43, non-stop
Airbus A321neo (32Q)

Austrian OS7703
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:39, non-stop
Airbus A321neo (32Q)

Austrian OS7703
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:43, non-stop
Airbus A321neo (32Q)

Austrian OS7703
Effective 2025-11-03 through 2025-12-01
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:44, non-stop
Airbus A320 (320)

Austrian OS7703
Effective 2025-12-19 through 2026-01-02
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:44, non-stop
Airbus A320 (320)

Austrian OS7703
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:44, non-stop
Airbus A320 (320)

Austrian OS7703
Effective 2026-02-13 through 2026-02-20
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:44, non-stop
Airbus A320 (320)

Austrian OS7703
Effective from 2026-02-22
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2278)
Duration: 4:44, non-stop
Airbus A320 (320)

Austrian OS7703
Effective 2025-10-27 through 2025-10-31
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2211)
Duration: 4:34, non-stop
Boeing 737 MAX 8 (7M8)

Austrian OS7703
Effective 2025-12-03 through 2025-12-17
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2211)
Duration: 4:34, non-stop
Boeing 737 MAX 8 (7M8)

Austrian OS7703
Effective 2026-01-07 through 2026-01-16
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2211)
Duration: 4:34, non-stop
Boeing 737 MAX 8 (7M8)

Austrian OS7703
Effective 2026-01-19 through 2026-01-30
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2211)
Duration: 4:34, non-stop
Boeing 737 MAX 8 (7M8)

Austrian OS7703
Effective 2026-02-02 through 2026-02-11
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2211)
Duration: 4:34, non-stop
Boeing 737 MAX 8 (7M8)
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  • OS 7703 is a domestic flight departing from the Chicago O'Hare airport (ORD) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 1715 miles, or 2760 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . 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 4:34 and 4:44.