Flight Check

Best Airline: GEG to LAS

Spokane to Las Vegas — airline reliability comparison

Southwest Airlines is the most reliable airline on the GEG to LAS route with a 85% on-time rate, compared to Allegiant Air at 80%. Based on 2,362 flights tracked.

This route involves high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Southwest Airlines85%
Allegiant Air80%

GEG to LAS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Southwest AirlinesWNBest85%0.2%52m2,362
Allegiant AirG4Worst80%0.0%52m20

Route Overview

83%
Overall On-Time
56m
Avg Delay
0.3%
Cancel Rate
2,725
Total Flights
GEG to LAS Route DetailsReturn: LAS to GEG
GEG AirportLAS Airport

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Data last updated October 2026. Source: Bureau of Transportation Statistics.