Flight Check

Best Airline: BOS to CHS

Boston to Charleston — airline reliability comparison

Republic Airways is the most reliable airline on the BOS to CHS route with a 86% on-time rate, compared to JetBlue Airways at 74%. Based on 194 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 Airways86%
Delta Air Lines80%
Spirit Airlines74%
JetBlue Airways74%

BOS to CHS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Republic AirwaysYXBest86%2.3%43m194
Delta Air LinesDL80%2.2%71m1,378
Spirit AirlinesNK74%2.5%73m196
JetBlue AirwaysB6Worst74%1.8%68m2,364

Route Overview

77%
Overall On-Time
69m
Avg Delay
1.7%
Cancel Rate
4,199
Total Flights
BOS to CHS Route DetailsReturn: CHS to BOS
BOS AirportCHS Airport

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