Direct (nonstop) flights from Las Vegas to Idaho Falls
1 airline flys nonstop from Harry Reid International Airport (LAS) to Idaho Falls Rgnl (IDA). It's 538 miles (866 km), about 1h 48m in the air. Operated by Allegiant Air.
Allegiant Air
Route data last updated: May 29, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Las Vegas to Idaho Falls with one stop · direct emits 100 kg CO₂ per passenger
Looking for the return flight?
IDA → LAS: Flights from Idaho Falls to Las VegasOther direct flights from Las Vegas
Direct flights from Idaho Falls (IDA)
Frequently Asked Questions
How long is the direct flight from Las Vegas to Idaho Falls?
A nonstop flight from Las Vegas (LAS) to Idaho Falls (IDA) takes approximately 1 hours and 48 minutes. The distance is 538 miles (866 km).
Which airlines fly nonstop from Las Vegas to Idaho Falls?
Just Allegiant Air.
Is there a nonstop flight from Las Vegas to Idaho Falls?
Yes. 1 airline: Allegiant Air.
How far is Las Vegas from Idaho Falls?
The flight distance from Las Vegas to Idaho Falls is 538 miles (866 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Las Vegas to Idaho Falls?
At 1h 48m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Las Vegas to Idaho Falls?
Roughly 100 kg CO2 per passenger one-way. That's about the same as driving 500 km.
Is the return flight from Idaho Falls to Las Vegas also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Las Vegas to Idaho Falls?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Harry Reid International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.