Austrian flight OS 721: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 09:20 Vienna (VIE) 3 10:25 Belgrade (BEG) 2
OS 721 Non-stop Embraer EMB 195 (E95) 1:05 Effective 2025-10-26 through 2026-01-05
Daily 09:20 Vienna (VIE) 3 10:25 Belgrade (BEG) 2
OS 721 Non-stop Embraer EMB 195 (E95) 1:05 Effective 2026-01-07 through 2026-01-14
Mon,Wed-Sun 09:20 Vienna (VIE) 3 10:25 Belgrade (BEG) 2
OS 721 Non-stop Embraer EMB 195 (E95) 1:05 Effective 2026-01-16 through 2026-02-02
Daily 09:20 Vienna (VIE) 3 10:25 Belgrade (BEG) 2
OS 721 Non-stop Embraer EMB 195 (E95) 1:05 Effective from 2026-02-03
Daily 13:45 Vienna (VIE) 3 14:30 Budapest (BUD) 2A
OS 721 Non-stop Embraer EMB 195 (E95) 0:45 Valid until 2025-08-03
Mon 13:45 Vienna (VIE) 3 14:30 Budapest (BUD) 2A
OS 721 Non-stop Airbus A320 (320) 0:45 Operates only on 2025-08-04
Daily 13:45 Vienna (VIE) 3 14:30 Budapest (BUD) 2A
OS 721 Non-stop Embraer EMB 195 (E95) 0:45 Effective 2025-08-05 through 2025-10-25
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This flight number is listed as serving the following routes:


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Austrian flight OS 721: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Austrian OS721
09:20
Vienna (VIE) 3

10:25
Belgrade (BEG) 2
Effective 2025-10-26 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:05, non-stop
Embraer EMB 195 (E95)
Austrian OS721
09:20
Vienna (VIE) 3

10:25
Belgrade (BEG) 2
Effective 2026-01-07 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:05, non-stop
Embraer EMB 195 (E95)
Austrian OS721
09:20
Vienna (VIE) 3

10:25
Belgrade (BEG) 2
Effective 2026-01-16 through 2026-02-02
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 1:05, non-stop
Embraer EMB 195 (E95)
Austrian OS721
09:20
Vienna (VIE) 3

10:25
Belgrade (BEG) 2
Effective from 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:05, non-stop
Embraer EMB 195 (E95)
Austrian OS721
13:45
Vienna (VIE) 3

14:30
Budapest (BUD) 2A
Valid until 2025-08-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:45, non-stop
Embraer EMB 195 (E95)
Austrian OS721
13:45
Vienna (VIE) 3

14:30
Budapest (BUD) 2A
Operates only on 2025-08-04
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 0:45, non-stop
Airbus A320 (320)
Austrian OS721
13:45
Vienna (VIE) 3

14:30
Budapest (BUD) 2A
Effective 2025-08-05 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:45, non-stop
Embraer EMB 195 (E95)
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This flight number is listed as serving the following routes:
  • Vienna (VIE) - Belgrade (BEG)
  • Vienna (VIE) - Budapest (BUD)
All Austrian flights
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