$263 Cheap Southwest Airlines flights Greenville (GSP) to Honolulu (HNL)

Finding cheap one-way Southwest Airlines flights from GSP to HNL from $263 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $582 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Begin your search one to three months ahead of your travel date to find cheap fares on Southwest Airlines flights from Greenville-Spartanburg Intl. Airport (GSP) to Daniel K. Inouye Intl. Airport (HNL). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic journeys.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

To find the earliest departures from GSP to HNL with Southwest Airlines, filter your search by "Early Morning" and "Morning." Choosing an early flight generally means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.