Idaho Falls (IDA) to Las Vegas (LAS) flights
Allegiant Air flies nonstop from Idaho Falls Regional Airport to Harry Reid International Airport, with about 2 flights a week in July 2026. The 539-mile flight takes about 1h 39m gate to gate.
- Distance
- 539 mi · 867 km
- Flight time
- 1h 39m
- Airlines
- 1
- Seats filled
- 73%
Airlines flying IDA to LAS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Allegiant Air | 2 | Airbus A319, Airbus A320-100/200 | 13,157 | 1h 39m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IDA to LAS flight schedule
2 flight numbers flew this route in August 2026. The first usually leaves at 5:33pm and the last at 10:54pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| G4 71Allegiant Air | 5:33pm | 6:16pm | 4 | n/a |
| G4 50Allegiant Air | 10:54pm | 11:37pm | 5 | 57% |
Is IDA to LAS on time?
From September 2025 to August 2026, 66% of 114 flights arrived within 15 minutes of schedule and 0.9% were cancelled. Flights leaving around 9pm were the most punctual (83%), those around 10pm the least (57%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (51%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Allegiant Air | 114 | 66% | 67 min | 0.9% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 9 | 1,050 | |
| September 2025 | 9 | 1,002 | |
| October 2025 | 9 | 1,061 | |
| November 2025 | 10 | 1,115 | |
| December 2025 | 15 | 1,631 | |
| January 2026 | 9 | 994 | |
| February 2026 | 8 | 940 | |
| March 2026 | 9 | 1,071 | |
| April 2026 | 8 | 920 | |
| May 2026 | 9 | 1,063 | |
| June 2026 | 9 | 1,046 | |
| July 2026 | 9 | 1,264 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.