Both United and Alaska Airlines via Skyscanner have round trip airfares travelling to and from San Francisco (SFO) and Maui Hawaii (OGG) for $ 358, nonstop! These are basic economy fares, a restricted-type fare.

Travel Availability:

Departs SFO: Mon-Thurs from Sept 4 thru Nov 13; Dec 3-5, 9-11; then Mon-Thur from Jan 7 thru Feb 5, 2020
Departs OGG: Mon-Thurs from Sept 4 thru Nov 13; Dec 4-5, 9; then Mon-Thur from Jan 8 thru Feb 5, 2020