Flight Check

Best Airline: SEA to MSP

Seattle to Minneapolis — airline reliability comparison

Delta Air Lines is the most reliable airline on the SEA to MSP route with a 90% on-time rate, compared to Alaska Airlines at 81%. Based on 6,308 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

Delta Air Lines90%
Alaska Airlines81%

SEA to MSP Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest90%0.6%68m6,308
Alaska AirlinesASWorst81%1.0%44m3,261

Route Overview

86%
Overall On-Time
56m
Avg Delay
0.7%
Cancel Rate
9,569
Total Flights
SEA to MSP Route DetailsReturn: MSP to SEA
SEA AirportMSP Airport

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