8 routes in the US airlines are severing in 2020, leaving no air link between the 2 cities

JetBlue will also be ending its seasonal service between Boston and Oakland, California on April 29 with the airline opting to connect Beantown and the Bay Area via airports in San Francisco and San Jose instead.

Oakland was one of JetBlue's first West Coast destinations that it opened from Boston, launching the route four years into its operation in 2004, Oakland Airport records show.

Alaska Airlines will be closing a route between Sacramento, California and Kona, Hawaii in mid-March, Routes Online reported, which it had been operating since 2018.

Alaska will also be canceling service between Sacramento and Kahului, Hawaii leaving only Hawaiian Airlines and Southwest Airlines on the route, and San Francisco and Kona, after which United Airlines will take over as the sole carrier on the route.

The route cancellations come as low-cost carriers Southwest Airlines and Sun Country Air continue to offer low fare connections between the mainland and the 50th state. At the time of Alaska's departure from the route, Southwest Airlines will be offering connections from Sacramento to Honolulu and Kahului.

Frontier Airlines will end its route between Denver and Mobile, Alabama, according to the Mobile Aviation Authority, with the airport stating that Frontier sought to apply its aircraft toward larger markets.

The route will cease to operate on April 22, with Mobile Downtown Airport losing its only commercial airline.

Frontier Airlines will also be ceasing service between Denver and Tyler, Texas, KLTV News reported, leaving the east Texas airport with only one commercial air link.

Frontier began flying to the city in 2019, ending the route just under a year since it started.

United Airlines is dropping its nonstop link between Houston, Texas, and Dayton, Ohio on March 27, The Points Guy reported.

The two cities are currently connected with daily service operated by United's regional brand, United Express, on 50-seat Embraer E145 aircraft.

United Airlines will also be ending a regional route between Newark, New Jersey, and Akron, Ohio, according to Cleveland.com, at the end of March.

The route is currently operated using the 50-seat Embraer E145 aircraft on a daily basis, with the next nearest airport for passengers to access from Newark being Cleveland, Ohio.

American Airlines will be closing one of the shortest routes in its network between the Pennsylvania cities of Philadelphia and Williamsport, according to Routes Online. The 112-nautical mile route will be replaced by a new link to Charlotte, which will also be operated by American Airlines.