Idaho Falls (IDA) to Las Vegas (LAS) flights
One airline flies nonstop from Idaho Falls (IDA) to Las Vegas (LAS): Allegiant Air. The two airports are 539 miles (867 km) apart. There are also 7 ways to fly it with one stop, through Salt Lake City, Phoenix and Santa Ana and more.
Airlines flying nonstop from IDA to LAS
- Allegiant AirNot in an alliance
IDA to LAS with one stop
7 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Salt Lake City (SLC)Delta Air Lines the whole way
- Via Phoenix (PHX)American Airlines the whole way
- Via Santa Ana (SNA)Allegiant Air, then Delta Air Lines, Southwest Airlines and 3 more+2
- Via Mesa (AZA)Allegiant Air the whole way
- Via Denver (DEN)United Airlines the whole way
- Via Portland (PDX)Alaska Airlines the whole way
- Via Seattle (SEA)Alaska Airlines the whole way+2
IDA to LAS: common questions
Which airlines fly nonstop from IDA to LAS?
Allegiant Air flies nonstop from Idaho Falls (IDA) to Las Vegas (LAS).
How far is Idaho Falls from Las Vegas by plane?
Idaho Falls (IDA) and Las Vegas (LAS) are 539 miles (867 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does IDA to LAS cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IDA to LAS with taxes and fees.
Where can I connect between Idaho Falls and Las Vegas?
The most direct connections are through Salt Lake City (SLC), Phoenix (PHX), Santa Ana (SNA), Mesa (AZA) and Denver (DEN). On 6 of them the same airline flies both flights, for example Delta Air Lines through Salt Lake City.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.