Flight Check

Best Airline: BOS to LAS

Boston to Las Vegas — airline reliability comparison

Delta Air Lines is the most reliable airline on the BOS to LAS route with a 80% on-time rate, compared to Spirit Airlines at 72%. Based on 2,048 flights tracked.

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

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Delta Air Lines80%
JetBlue Airways75%
Spirit Airlines72%

BOS to LAS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest80%0.9%60m2,048
JetBlue AirwaysB675%1.0%67m3,542
Spirit AirlinesNKWorst72%0.4%75m239

Route Overview

77%
Overall On-Time
65m
Avg Delay
0.9%
Cancel Rate
5,839
Total Flights
BOS to LAS Route DetailsReturn: LAS to BOS
BOS AirportLAS Airport

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