Delta on Monday revealed plans for an expansion in Boston over the coming 10 months as it takes on Logan Airport’s biggest carrier, JetBlue.

By June of next year, Delta will commence routes from Boston to San Francisco and Nashville, and will operate more flights from Boston to Milwaukee, Orlando and Seattle. JetBlue already serves all of those routes, with the exception of Boston-Milwaukee.

“We’re seeing growing demand for business travel between Boston and key markets like San Francisco, Nashville, Seattle and Milwaukee,” said Joe Esposito, Delta’s vice president of network planning. “We’re meeting that demand with our industry-leading operational performance as well as innovative products and service. “

Delta will begin daily flights from Boston to Nashville on Nov. 6. Twice-daily flights between Boston and San Francisco will begin June 8. On that same day, the carrier will increase service from Boston to Milwaukee and Seattle from once per day to twice per day. And in mid-December, Delta will add a third daily flight between Orlando and Boston.

Delta also announced Monday that this winter it will add weekly service from Boston to Montego Bay, Punta Cana and St. Thomas. JetBlue flies each of those routes, as well.

JetBlue carried more than 29% of passengers out of Boston Logan from June 2015 through this May, according to the Bureau of Transportation Statistics. Delta was the airport’s fourth-largest carrier, taking 12% of its passengers.

With its new destinations, Delta will fly to 29 routes from Boston.

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