Allegiant Air
flight
G4 638:
Multiple routes
FLIGHT SCHEDULE
Direct Flights:
Allegiant Air G4638
Effective 2026-06-05 through 2026-06-29
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Duration: 2:20, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Effective 2026-07-03 through 2026-08-17
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
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-
Duration: 2:20, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Effective 2026-01-07 through 2026-02-04
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
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-
Duration: 2:33, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Operates only on 2026-03-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
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-
Duration: 3:40, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Effective 2026-01-09 through 2026-02-09
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Duration: 2:33, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Valid until 2026-01-01
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:25, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Effective 2026-04-03 through 2026-05-18
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Duration: 2:45, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Valid until 2026-01-03
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:01, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Operates only on 2026-03-08
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 2:55, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Operates only on 2026-06-20
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 2:20, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Valid until 2026-01-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 2:25, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Effective 2026-06-03 through 2026-06-10
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:20, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Effective 2026-05-20 through 2026-05-27
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:19, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Effective 2026-07-15 through 2026-07-29
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:20, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Effective 2026-08-05 through 2026-08-12
Mon
-
-
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:20, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Operates only on 2026-03-21
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:40, non-stop
Airbus A320 (320)
Airbus A320 (320)
Direct Flights:
Allegiant Air G4638
Operates only on 2026-03-28
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:40, non-stop
Airbus A320 (320)
Airbus A320 (320)
This flight number is listed as serving the following routes:
- Billings (BIL) - Phoenix-Mesa Gateway (AZA)
- Bozeman (BZN) - Phoenix-Mesa Gateway (AZA)
- Chicago Rockford (RFD) - Phoenix-Mesa Gateway (AZA)
- Kalispell (FCA) - Phoenix-Mesa Gateway (AZA)
- Phoenix-Mesa Gateway (AZA) - Moline (MLI)
- Phoenix-Mesa Gateway (AZA) - Portland (PDX)