Allegiant Air flights from Idaho Falls (IDA) to Las Vegas Harry Reid (LAS).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Fri 21:20 Idaho Falls (IDA) 22:07 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 27 Non-stop Airbus A319 (319) 1:47 Effective 2026-01-09 through 2026-02-09
Mon,Fri 22:52 Idaho Falls (IDA) 23:35 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 27 Non-stop Airbus A319 (319) 1:43 Valid until 2026-01-05
Mon,Fri 18:05 Idaho Falls (IDA) 18:48 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:43 Effective 2026-07-03 through 2026-08-03
Mon,Fri 18:07 Idaho Falls (IDA) 18:50 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:43 Effective 2026-08-07 through 2026-08-17
Mon,Fri 19:39 Idaho Falls (IDA) 20:22 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:43 Effective 2026-06-05 through 2026-06-29
Mon,Fri 19:48 Idaho Falls (IDA) 20:31 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:43 Effective 2026-05-22 through 2026-06-01
Mon,Fri 22:06 Idaho Falls (IDA) 22:47 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:41 Effective 2026-04-03 through 2026-04-06
Mon,Fri 22:13 Idaho Falls (IDA) 22:59 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:46 Effective 2026-03-13 through 2026-03-30
Mon,Fri 22:21 Idaho Falls (IDA) 23:02 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:41 Effective 2026-04-10 through 2026-05-18
Mon,Fri 22:29 Idaho Falls (IDA) 23:17 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:48 Effective 2026-02-27 through 2026-03-02
Mon,Fri 22:30 Idaho Falls (IDA) 23:16 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:46 Effective 2026-03-06 through 2026-03-09
Mon,Fri 22:31 Idaho Falls (IDA) 23:19 Las Vegas Harry Reid (LAS) 1
Allegiant Air G4 50 Non-stop Airbus A319 (319) 1:48 Effective 2026-02-13 through 2026-02-23




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Allegiant Air flights from Idaho Falls (IDA) to Las Vegas Harry Reid (LAS).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Allegiant Air G427
21:20
Idaho Falls (IDA)

22:07
Las Vegas Harry Reid (LAS) 1
Effective 2026-01-09 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:47, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G427
22:52
Idaho Falls (IDA)

23:35
Las Vegas Harry Reid (LAS) 1
Valid until 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:43, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
18:05
Idaho Falls (IDA)

18:48
Las Vegas Harry Reid (LAS) 1
Effective 2026-07-03 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:43, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
18:07
Idaho Falls (IDA)

18:50
Las Vegas Harry Reid (LAS) 1
Effective 2026-08-07 through 2026-08-17
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:43, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
19:39
Idaho Falls (IDA)

20:22
Las Vegas Harry Reid (LAS) 1
Effective 2026-06-05 through 2026-06-29
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:43, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
19:48
Idaho Falls (IDA)

20:31
Las Vegas Harry Reid (LAS) 1
Effective 2026-05-22 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:43, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
22:06
Idaho Falls (IDA)

22:47
Las Vegas Harry Reid (LAS) 1
Effective 2026-04-03 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:41, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
22:13
Idaho Falls (IDA)

22:59
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-13 through 2026-03-30
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:46, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
22:21
Idaho Falls (IDA)

23:02
Las Vegas Harry Reid (LAS) 1
Effective 2026-04-10 through 2026-05-18
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:41, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
22:29
Idaho Falls (IDA)

23:17
Las Vegas Harry Reid (LAS) 1
Effective 2026-02-27 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:48, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
22:30
Idaho Falls (IDA)

23:16
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-06 through 2026-03-09
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:46, non-stop
Airbus A319 (319)
Direct Flights:
Allegiant Air G450
22:31
Idaho Falls (IDA)

23:19
Las Vegas Harry Reid (LAS) 1
Effective 2026-02-13 through 2026-02-23
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:48, non-stop
Airbus A319 (319)
  • A domestic route departing from the Idaho Falls airport (IDA) and arriving at Las Vegas Harry Reid airport (LAS).
  • The flight distance is 539 miles, or 867 km.
  • The timezone of the departure airport is UTC-7 , 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 1:41 and 1:48.
All IDA-LAS flights
All Allegiant Air flights
Return (LAS-IDA) flights
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