Southwest Airlines Sale: Up to 40% Off Flights from Hawai‘i to the Mainland - Ends Oct 23.
Southwest just launched one of its biggest sales of the year and flights from Hawai‘i are included! For a limited time, you can save up to 40% off base fares when you book with promo code 40SALE.
🔹 Quick Details
Promo Code:
40SALE
Book by: Wednesday, October 23, 2025
Travel Dates: December 3, 2025 – March 4, 2026
Included: Flights between Hawai‘i and the U.S. Mainland (and international, PR routes)
Excluded: Interisland flights within Hawai‘i
Routes on sale from Honolulu (HNL):
HNL → Las Vegas (LAS)
HNL → Phoenix (PHX)
HNL → San Jose (SJC)
HNL → Houston (HOU)
HNL → Eugene (EUG)
👉 Book your flight on Southwest.com
Discount applies to base fare only before taxes and fees. Seats and dates are limited.
⚠️ Blackout Dates
To Hawai‘i: Dec 18–Jan 6, Feb 12–15
From Hawai‘i: Dec 18–Jan 6, Feb 20–22
Continental U.S. only: Dec 19–20, Dec 26–29, Jan 2–4, Feb 16
Flights between Hawai‘i and the Mainland are valid on select weekdays only (Sun–Wed going to Hawai‘i, Tue–Fri coming back).
Flights as low as 11,000 points to Las Vegas from HNL.
Flights as low as 9,000 points to San Jose
💡 Why It’s a Good Deal
Up to 40% off base fares is one of Southwest’s largest discounts in recent months.
Two free checked bags - perfect for families or extended trips.
No change fees - book now, adjust later if plans shift.
You can even book with Rapid Rewards® points, and the 40% off still applies to the fare portion.
👉 Book your flight on Southwest.com
🌺 Scottie’s Take
For Hawai‘i travelers, this sale is worth checking out, especially if you’re planning winter or early spring trips to the Mainland. I’ve noticed Southwest’s best deals often fall on midweek departures, perfect for flexible travelers or those heading to visit family.
While interisland flights aren’t part of the promo, the Mainland savings can stack up, especially when you factor in the free bags and flexible changes that most other airlines charge extra for.
If you’re sitting on Chase Ultimate Rewards® points, you can book these discounted Southwest fares directly through the Chase Travel Portal or use your points for a statement credit.
Lock it in before October 23, these sales usually sell out fast!