MIAMI — Delta announced that it would add service to up to six new cities from Seattle, on Tuesday.

The Atlanta-based carrier will begin offering CRJ-700 service to Spokane, four times daily, on November 3rd. Two daily flights to Calgary, via Embraer E175 aircraft, will also begin the same day.

Late this year, on December 20, the carrier will add daily Maui service via a Boeing 757-200, daily seasonal to Bozeman Montana on an E175, and four times weekly on Airbus A319 aircraft to Los Cabos and Puerto Vallarta. The latter two, both still subject to government approval, will be reduced to once weekly Saturday service in mid-January.


Unsurprisingly, Delta will be pitted against Seattle-based heavy-weight Alaska Airlines on all of the domestic and Canadian routes. In particular, the carrier is moving to disrupt Alaska/Horizon’s monopoly on the Spokane shuttle. Alaska has run unopposed on the route since Southwest exited the route in January 2012. Delta will also face-off against Air Canada on the route to Calgary.

The two Mexican routes will also likely face an Alaska-Delta duel. While neither currently offer service to either city, Alaska announced it filed for government approval for to serve both cities via its Seattle hub only six days ago.

Alaska sent out a release Tuesday afternoon, noting that it will increase its presence in Seattle by eleven percent in the spring of 2015. To hit the number the carrier is adding 27 new roundtrips to cities including Boise, Boston, Chicago, Denver, Fairbanks, Los Angeles, Palm Springs, and Sacramento, California. It announced it would also bulk up its shuttle service to Portland, adding three new flights, and upgauge two of the present 16 daily flights from Seattle to Spokane to 737s. A full list of the changes can be found here.

Both are set to begin a slew of new service over the next few months from the Emerald City. Delta adds both Seoul and Hong Kong in June, along with eleven domestic locations by the end of the summer. Alaska will serve five new cities by mid-September.