Flight Check

Best Airline: CHS to BOS

Charleston to Boston — airline reliability comparison

Republic Airways is the most reliable airline on the CHS to BOS route with a 87% on-time rate, compared to Spirit Airlines at 70%. Based on 195 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 Airways87%
Delta Air Lines74%
JetBlue Airways72%
Spirit Airlines70%

CHS to BOS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Republic AirwaysYXBest87%1.5%73m195
Delta Air LinesDL74%2.5%123m1,378
JetBlue AirwaysB672%2.0%91m2,365
Spirit AirlinesNKWorst70%2.5%81m196

Route Overview

73%
Overall On-Time
101m
Avg Delay
2%
Cancel Rate
4,201
Total Flights
CHS to BOS Route DetailsReturn: BOS to CHS
CHS AirportBOS Airport

Flying out of CHS? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

Free. No account needed.

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