Flight Check

Best Airline: BOS to CLT

Boston to Charlotte — airline reliability comparison

Republic Airways is the most reliable airline on the BOS to CLT route with a 84% on-time rate, compared to Spirit Airlines at 63%. Based on 4,575 flights tracked.

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

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Republic Airways84%
American Airlines83%
JetBlue Airways81%
Frontier Airlines65%
Spirit Airlines63%

BOS to CLT Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Republic AirwaysYXBest84%2.4%61m4,575
American AirlinesAA83%1.5%94m9,904
JetBlue AirwaysB681%1.7%78m1,258
Frontier AirlinesF965%1.2%89m124
Spirit AirlinesNKWorst63%8.3%66m470

Route Overview

82%
Overall On-Time
83m
Avg Delay
1.9%
Cancel Rate
16,400
Total Flights
BOS to CLT Route DetailsReturn: CLT to BOS
BOS AirportCLT Airport

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