Horizon Air has announced it’s eliminating one of its two daily round-trip flights between Lewiston and Boise.

The company says the flight will be eliminated in August, and that the remaining flight will begin and end in Pullman.

Horizon is cutting some other flights in the Pacific Northwest, including stopping all service to Butte and dropping some Seattle-to-Portland flights, as it struggles with high fuel costs. The changes in service come as airlines nationwide battle soaring fuel prices by reducing flights and packing planes fuller.

The airline also will reduce daily flights between many other cities, though in some cases it will also be switching to larger planes. Horizon said earlier this year it is phasing out its less efficient, 37-seat Q200 planes and eventually will fly only the bigger and more fuel-efficient Q400s turboprops, which seat 76 passengers.