Southwest Airlines is about to give Hilo travelers a true mainland nonstop to Las Vegas. Service between Hilo International Airport (ITO) and Harry Reid International Airport (LAS) begins Thursday, August 6, 2026, on Mondays, Thursdays, and Fridays.
Aloha State Daily reported the airline’s schedule from the official Southwest announcement. Live fares already appear on Southwest’s Las Vegas to Hilo booking page, so the practical decision is whether to book the new nonstop instead of connecting through Honolulu.
- Start date: Thrice-weekly nonstops begin August 6, 2026.
- Days: Flights operate Mondays, Thursdays, and Fridays at launch.
- Westbound: Las Vegas departs 9:30 am and arrives Hilo at 12:35 pm.
- Eastbound: Hilo departs 8:45 pm and arrives Las Vegas at 5:10 am next day.
- Why it matters: Hilo gains a mainland nonstop without a Honolulu connection.
What Southwest is launching
Southwest frames the route as a direct answer to Hilo demand for Las Vegas, long nicknamed the “Ninth Island” among Hawaii travelers. Adam Decaire, Southwest’s senior vice president for network planning and network operations control, said the airline heard that Las Vegas matters to Hilo and that Hilo matters to Southwest.
In the announcement quoted by Aloha State Daily, Decaire said the nonstop gets travelers faster to family and fun in Nevada and into Southwest’s large Las Vegas connecting bank. Las Vegas is one of Southwest’s densest hubs, with many nonstop destinations beyond the desert.
The airline already operates at Hilo. Southwest began Hilo service on January 19, 2020, after entering the Hawaiian Islands in 2019, and it runs a large interisland schedule plus many mainland flights that touch Hawaii through Honolulu and other gateways.
Until now, many Hilo passengers who wanted a Southwest mainland itinerary still had to hop to Honolulu first. The new Las Vegas nonstop removes that extra island leg for thrice-weekly departures.
Southwest also noted sustained loyalty from Hilo-side customers who used interisland flights to connect at Honolulu. The new route is presented as an investment in that relationship and in the Hilo market’s growth potential.
Published times and how the days line up
At launch, the published westbound pattern is a morning Las Vegas departure. Aircraft leave LAS at 9:30 am and arrive ITO at 12:35 pm, which puts Big Island travelers on the ground with a full afternoon still available.
Eastbound is an evening red-eye style hop. Flights leave Hilo at 8:45 pm and reach Las Vegas at 5:10 am the next calendar day, which is useful for early mainland connections and for travelers who want a full Hilo day before flying.
Those times were the initial published schedule in Southwest’s announcement. Always recheck the live booking path for your exact date because seasonal retimes and aircraft swaps can move a bank by a few minutes.
The thrice-weekly cadence means you cannot treat this like a daily shuttle. If your trip needs a Tuesday or Saturday nonstop, you still need another gateway, another carrier, or a Honolulu connection.
For many Hilo households and for visitors based on the windward side of Hawaii Island, Monday, Thursday, and Friday nonstops still beat an obligatory Honolulu connection on those days.
Why a Hilo mainland nonstop changes trip design
Hilo and Kona are not interchangeable bases. Travelers comparing sides of the island can use Deep Arrival’s guide to Kona versus Hilo as a Big Island base when the flight decision and the hotel decision pull in different directions.
Hilo sits closer to Hawaii Volcanoes National Park, waterfalls, and the rainy windward side. Kona is closer to many resort beaches and the main west-side hotel strip.
A nonstop into Hilo favors itineraries built around volcano day trips, Hilo town, and east-side lodging. Guests who sleep in Kona may still prefer a Kona arrival even if the new Southwest nonstop looks cheaper on paper.
Visitors who want a broad day-by-day menu of volcanoes, beaches, snorkels, and coffee farms can start with Deep Arrival’s things to do on the Big Island guide before locking a single airport.
From Las Vegas, the new nonstop also cuts one connection for Nevada-based Hawaii Island travelers and for visitors who already use Las Vegas as a Southwest transfer point from the mainland interior.
How this fits Southwest’s wider Hawaii push
This Hilo route sits beside other recent Southwest Hawaii additions. Deep Arrival already covered the carrier’s Burbank to Honolulu nonstops launching August 8, a different island and a different mainland city.
Do not treat those as the same stream. Burbank-Honolulu serves Oahu demand from Southern California, while Hilo-Las Vegas serves Big Island demand from Nevada and the Las Vegas connecting map.
Southwest has also published other Las Vegas to Honolulu patterns in prior coverage, including overnight and reverse red-eye options. Those Oahu products do not own the Hilo decision.
For travelers who still connect over Honolulu, the interisland network remains part of the system. The new nonstop is valuable precisely when you want to skip that island hop on the published thrice-weekly days.
If your dates fall outside Monday, Thursday, or Friday, map a backup. Options include Honolulu connections on Southwest, another carrier into Hilo or Kona, or shifting the trip by one day to match the nonstop.
Bags, seating, and booking checks
Southwest’s mainland and Hawaii fee rules still differ on some interisland products. Before you pack for a mainland-Hawaii nonstop, read the current Southwest baggage fees guide and confirm the live policy for your exact ticket type.
Do not assume a free first bag just because you are flying Southwest. Fare families and Hawaii product rules can change the bag line item, and overweight or oversize charges still apply.
Southwest has also been rolling assigned seating across the network. Older open-seating habits do not automatically apply to every future departure, so check your confirmation for seat assignment status before you board.
Book on Southwest.com or through a trusted agent, then save the confirmation and the live manage-trip link. If you need Las Vegas connections beyond the nonstop, build the full itinerary in one reservation when possible so protection rules stay clean.
Aloha State Daily also noted special Hilo and Las Vegas flights around the Merrie Monarch Festival in April 2026, separate from the regular thrice-weekly pattern. Festival travelers should treat those as one-off schedule rows, not as proof of daily summer service.
| If you… | What to do |
|---|---|
| Need a Monday, Thursday, or Friday Hilo nonstop | Book LAS to ITO on Southwest and recheck times before you buy nonrefundable hotels. |
| Travel on other days of the week | Plan a Honolulu connection, another carrier, or shift dates to match the thrice-weekly bank. |
| Sleep on the Kona side | Compare drive time from Hilo versus a Kona arrival before you choose the cheaper nonstop. |
| Connect beyond Las Vegas | Build the full Southwest itinerary in one booking when you can so misconnect protection stays simple. |
- Book window: August 6 launch inventory is already on sale; secure seats if your dates match Mon, Thu, or Fri.
- Airport choice: Pick Hilo only when your lodging and day trips sit on the east side or volcano corridor.
- Connection plan: Use Las Vegas as a Southwest hub only when the thrice-weekly bank lines up with your mainland city.
- Backup plan: Keep a Honolulu connect path ready for weekends and midweek when the nonstop does not operate.
Travelers who mainly want volcano access and Hilo town energy gain the cleanest win from this nonstop. Resort guests locked to the Kona coast should still run the drive-time math before they force every arrival through ITO.
When do Southwest Hilo to Las Vegas nonstops start?
Regular thrice-weekly service begins August 6, 2026, on Mondays, Thursdays, and Fridays, according to Southwest’s announcement as reported by Aloha State Daily.
What are the published flight times?
Westbound leaves Las Vegas at 9:30 am and arrives Hilo at 12:35 pm. Eastbound leaves Hilo at 8:45 pm and arrives Las Vegas at 5:10 am the next day, subject to live retimes.
Does this replace a Honolulu connection for every trip?
No. The nonstop only covers three weekly days at launch, so other days still need a Honolulu hop, another airport, or a different airline.
Should Kona resort guests book Hilo automatically?
Not automatically. Compare total door-to-door time and bag logistics against a Kona arrival, especially if you will not visit the volcano or Hilo town.
