Charleston, Hartford, Bermuda, St. John's: United Fills In Its Summer 2027 Map

October filled in the edges of United's summer 2027 map. None of these routes will make headlines on its own, but together they show where United is looking for the next round of connecting traffic.

Canada came first. On October 16, United and Air Canada announced six new transborder routes for summer 2027 and said they had agreed to renew and expand their joint business agreement, subject to regulatory approval. United's three are Denver–Ottawa, Denver–Québec City and a seasonal Newark–St. John's, Newfoundland, which Airways notes is returning after more than a decade; the other three are Air Canada's. United's filed schedule, as tracked by AeroRoutes, has Denver–Ottawa starting April 29 with a daily SkyWest Embraer E175, Denver–Québec City from May 29 once a week on a 737-800, and Newark–St. John's from June 24 with a daily Republic Airways E175. United's chief network planner, Patrick Quayle, said the new routes "further underscore our commitment to investing in Canada."

San Francisco got the domestic attention. The Points Guy reported on October 26 that United is adding three new or returning SFO routes, and AeroRoutes' summary of the filing lists all three from March 28, 2027: Charleston, South Carolina, four times weekly on a 737 MAX 8; Hartford daily on a 737 MAX 9, a route United last served until September 2018; and Oklahoma City daily on a SkyWest E175, last served until April 2020.

Then there's Bermuda. Starting April 3, 2027, United will fly Chicago O'Hare to Bermuda on Saturdays only with Boeing 737s, its second nonstop to the island; today it serves Bermuda from Newark. Our read on the batch: the Canada routes lean on the Air Canada partnership to feed Denver and Newark, the SFO additions are classic hub-filling, and Bermuda gives Chicago a Saturday island option. These are plans, and filed schedules can still change before spring 2027.