Flight Check

Best Airline: SMF to ORD

Sacramento to Chicago — airline reliability comparison

United Airlines is the most reliable airline on the SMF to ORD route with a 85% on-time rate, compared to American Airlines at 79%. Based on 3,355 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

United Airlines85%
American Airlines79%

SMF to ORD Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest85%0.9%75m3,355
American AirlinesAAWorst79%1.9%139m953

Route Overview

83%
Overall On-Time
89m
Avg Delay
1.2%
Cancel Rate
4,334
Total Flights
SMF to ORD Route DetailsReturn: ORD to SMF
SMF AirportORD Airport

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