Rival airlines are making a run at Delta's dominance of MSP Airport
Delta Air Lines Inc.'s undeniable market-leading position at Minneapolis-St. Paul International Airport has declined in recent years as low-cost carriers like Southwest Airlines Co. and Sun Country Airlines take a greater share, according to a Business Journal analysis of passenger data from Metropolitan Airports Commission.
Overall business at the airport is booming, helped by a strong Twin Cities economy and an influx of leisure travelers, so all airlines are carrying more people. However, Delta's...