Southwest sale: 40% off flights to Hawaii

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It's that time of year again: Southwest Airlines is offering 40% off flights to Hawaii for travel through much of 2025.

Use the code "HAWAII40" through Thursday to book travel through May 2025.

Deal basics

Airline: Southwest Airlines

Routes: Valid for select flights between the continental U.S. and Hawaii, excluding John Wayne Airport (SNA) in Santa Ana, California

How to book: Directly with Southwest Airlines using the promo code "HAWAII40"

Travel dates: Dec. 3, 2024, to May 22, 2025

Book by: Thursday at 11:59 p.m. PST

Blackout dates (depending on the route):

• Feb. 13-16, 2025
• Feb. 21-23, 2025
• March 14 through April 27, 2025
• March 17 through April 19, 2025

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Sale fares are limited based on availability, and they apply to nonstop travel (when available) or a single connecting service. The discount does not cover the taxes and fees that will be charged each way.

Sample flights

Because Southwest does not generally specify its sale routes, you can either search for your desired route or check the Low Fare Calendar to see which routes are available.

If you use the carrier's search engine, you'll know the promo code was applied when you see a green banner at the top indicating such, along with the green price tag.

if you use the Low Fare Calendar, sale fares will appear under the crossed-out original price.

Based on a test search conducted for this story, you could book a round-trip ticket from Chicago's Midway International Airport (MDW) to Kahului Airport (OGG) in early May for $425.

This sale includes Wanna Get Away and Wanna Get Away Plus fares, which allow travelers two free checked bags, one free carry-on and one personal item. These tiers also include free inflight entertainment and messaging.

You can change or cancel flights up to 10 minutes before departure. However, if you cancel a Wanna Get Away trip, you will receive a flight credit in lieu of a refund.

Maximize your purchase

If you book this deal, use a credit card that earns bonus points on airfare purchases, such as:

• Southwest Rapid Rewards® Plus Credit Card: 2 points per dollar spent on Southwest purchases
• Southwest Rapid Rewards® Priority Credit Card: 3 points per dollar spent on Southwest purchases
• American Express® Gold Card: 3 points per dollar spent on airfare when booked directly with the airline or through amextravel.com
• The Platinum Card® from American Express: 5 points per dollar spent on airfare when booked directly with the airline or through Amex Travel (on up to $500,000 of these purchases per calendar year, then 1 point per dollar)
• Chase Sapphire Reserve®: 3 points per dollar spent on airfare
• Chase Sapphire Preferred® Card: 2 points per dollar spent on travel

Bottom line

This sale applies to both cash and points bookings on Southwest flights, and it's valid for travel to Hawaii through May 22. Book through Thursday to save.

Related reading:

• How to redeem your points with the Southwest Rapid Rewards program
• How to snag the best seats on Southwest Airlines
• How to earn and use the Southwest Companion Pass
• The best time to visit Hawaii for good weather, smaller crowds, deals and more
• Save money: How you can book flights to Hawaii using points and miles
• Best hotels and resorts in Hawaii