United Launches Four Uncontested Routes From San Francisco and Chicago in 2027

United Airlines will open four routes next spring on which it faces no nonstop competition from any carrier, including a new weekly Chicago O'Hare–Bermuda service starting 3 April 2027.

Three domestic routes launch from San Francisco International on 28 March 2027: Charleston (CHS), Hartford (BDL) and Oklahoma City (OKC). None of those city pairs currently has a nonstop link from San Francisco, which hands United an uncontested position on each route from day one.

Hartford and Oklahoma City will operate daily. Charleston gets four weekly frequencies, on Mondays, Thursdays, Fridays and Sundays.

United will deploy mainline narrowbody aircraft on Charleston and Hartford. Oklahoma City shifts to United Express, the carrier's regional arm.

What does Hartford gain?

Bradley International currently has no nonstop flights to San Francisco — or to California at all. United already connects the Connecticut airport to Chicago O'Hare, Denver, Houston and Washington Dulles.

Mark Weithofer, United's managing director of domestic network planning, said in a news release: "We're excited to grow our network from Hartford with new daily service to San Francisco, providing Connecticut travelers with convenient service to the West Coast." He added that the route "strengthens our commitment to the region, offering customers greater choice and seamless connections across our global network from San Francisco."

Why Charleston matters most

Charleston may carry the most strategic weight of the three domestic additions. The San Francisco flight brings United's network from Charleston International to six destinations, joining Chicago, Denver, Houston, Newark and Washington Dulles.

United holds a 12.8% share of all flights at the airport, carrying roughly 820,000 passengers between August 2025 and July 2026. American leads with 25.9%, followed by Delta at 23.7% and Breeze at 14.1%.

The only existing transcontinental services from Charleston are Breeze Airways' seasonal Los Angeles flights and Alaska Airlines' year-round Seattle route — neither touches the Bay Area.

Elliott Summey, president and CEO of Charleston International Airport, told Counton2: "Nonstop service to San Francisco is an exciting addition for Charleston International Airport and the entire Lowcountry. As our region continues to grow, so does the demand for convenient access to major markets across the country and around the world."

There is an industrial angle, too. Charleston International sits beside the Boeing facility that assembles the 787 Dreamliner, giving the local aerospace business community a direct link to the West Coast.

How does Chicago–Bermuda work?

From 3 April 2027, United will fly once weekly from O'Hare to L.F. Wade International, Bermuda's only airport. No other carrier operates the route nonstop, so United takes a monopoly position at launch.

The airline already serves Bermuda year-round from Newark Liberty. American, Delta, JetBlue and local carrier BermudAir also operate into L. Wade International.

One operational advantage sits on the ground in Bermuda: L.F. Wade hosts a US Customs and Border Protection preclearance facility. Passengers clear US immigration before departure and arrive on the mainland as domestic travelers, tightening onward connection times at O'Hare.

What does this say about United's network strategy?

The four additions follow a consistent pattern: use the major hubs to open city pairs no other carrier serves nonstop, and convert connecting traffic into direct flying before a competitor moves in.

Each route gives United immediate pricing power. Hartford and Oklahoma City travelers heading to the West Coast currently must connect; Charleston's corporate and leisure traffic faces the same constraint; and Chicago–Bermuda taps a leisure market with no rival from O'Hare.

Spring 2027 remains some months out, and schedules can change before then. But every one of these four routes launches into empty competitive space — and United has shown it will fill that space first.

By Nathan Brooks