United Airlines will add four new and returning routes in 2027, with three of them departing San Francisco and a fourth linking Chicago to the Atlantic island of Bermuda, according to Aviation A2Z.
This latest announcement caps a period of considerable network expansion for the carrier. Ten new international cities, together with three further routes across Europe and Asia for 2027, had already been revealed by United in August 2026, and on 16 October 2026 United and Air Canada jointly confirmed additional Canada–US transborder routes, among them a seasonal Newark to St. John's, Newfoundland service and new Denver connections to both Ottawa and Québec City.
Three San Francisco Routes, One Start Date
All three San Francisco routes are scheduled to begin on the same day: 28 March 2027. The pairing of simultaneous launches suggests a coordinated schedule build rather than opportunistic slot-filling, and it gives West Coast travellers three new nonstop options in a single timetable change.
Two of the three are returning services rather than brand-new ones, which points to United rebuilding connectivity that was either cut during the pandemic or quietly dropped in the years before it.
Hartford Returns After Nearly a Decade Away
United last flew nonstop between San Francisco and Bradley International Airport, which serves Hartford, Connecticut, in September 2018. The route will resume on 28 March 2027 as a daily service, operated with a Boeing 737 MAX 9.
For travellers in Connecticut and western Massachusetts, a nonstop to San Francisco removes the need to connect through Newark or Boston, which is no small convenience on a transcontinental journey.
Oklahoma City Reconnects with the West Coast
The San Francisco to Will Rogers World Airport service in Oklahoma City is another revival. United ended that route in April 2020 as the pandemic collapsed demand, and it has not operated since. From 28 March 2027, daily service will resume as a United Express operation, with SkyWest Airlines flying the route on an Embraer 175. Readers interested in the E175 and other regional types can explore specifications and operators using our Aircraft Search.
The use of a 76-seat regional jet rather than a mainline narrowbody reflects the size of the Oklahoma City market relative to the longer-range routes. SkyWest is already one of United's primary regional partners across the western United States.
Charleston Gets Its First San Francisco Nonstop
Unlike the other two California departures, the San Francisco to Charleston International Airport route is an entirely new service for United. Flights begin on 28 March 2027, operating four round-trips per week during the summer season before the service ends on 29 November 2027. The aircraft assigned is a Boeing 737 MAX 8.
Charleston has grown considerably as a leisure destination, and a direct Pacific coast connection fits a pattern of airlines targeting secondary cities with strong summer appeal rather than competing head-to-head on saturated trunk routes.
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Chicago to Bermuda: A Saturday Summer Service
The fourth route links Chicago O'Hare with Bermuda's L.F. Wade International Airport, with the first departure scheduled for 3 April 2027. United plans to run the service on Saturdays throughout the summer season, deploying a Boeing 737 on the sector. Government approval remains a condition of the route proceeding, as confirmed by the Bermuda Tourism Authority.
Situated approximately 650 miles from the North Carolina coastline, Bermuda is already served by United via nonstop flights from Newark Liberty International Airport. Chicago O'Hare would therefore become a second gateway to the island, sparing Midwest travellers the need to route through the East Coast in order to reach the destination.
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A Saturday-only frequency is typical for leisure-oriented island routes, where the weekend travel pattern dominates and filling a daily service outside peak summer would be difficult. The provisional nature of the approval is worth noting: the route will only operate if the relevant authorities sign off.
What This Means for United Airlines' 2027 Network
Taken together, the four routes continue a clear trajectory. United has been methodically filling gaps in its domestic and short-haul international network while simultaneously pushing into new long-haul markets, as the August 2026 international expansion demonstrated.
San Francisco appears to be a particular focus. Restoring two dropped routes and launching one entirely new one from the same hub on the same date suggests a deliberate effort to make the airport a stronger connecting and originating point, not simply a legacy stronghold.
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The Chicago to Bermuda addition, pending approval, diversifies access to one of the Atlantic's most popular leisure destinations. For passengers in the Midwest, it removes a connection that would otherwise add both time and cost to the journey.
For those planning travel on any of these new services, our Airline Search is a useful starting point for comparing United's wider network.
The Bottom Line
United's four 2027 route additions are a mix of long-overdue restorations and carefully targeted new services. The San Francisco trio arrives on a single date in late March, with aircraft ranging from a regional Embraer 175 to a mainline Boeing 737 MAX 9 depending on the market. The Chicago to Bermuda service adds a leisure option for the Midwest, though it still requires regulatory sign-off before it can be confirmed. All four sit within a broader 2027 expansion that began taking shape several months ago and shows little sign of slowing.
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