Southwest Airlines sale: Flights from $39 one way!

Southwest Airlines is putting spring flights on sale! Some of the deals are just $39 one-way and under $100 round-trip with Southwest’s lowest type of airfare — Wanna Get Away.

This low fare still includes these benefits:

• Two bags fly free
• Two carry-ons
• No change fees
• Inflight entertainment
• A choice of seats

Some details:

• A 21-day advance purchase is required.
• Travel within the continental U.S. between April 23 to June 5 and between August 6 and November 20.
• Hawaii travel, international travel, and San Juan, Puerto Rico travel are valid between August 20 and November 20.

A 21-day advance purchase notice is required. Most travel is blacked out on September 3. Orange County, California travel through John Wayne Airport is also not valid.

Remember that your first and second checked bags fly free. A golf bag in a container can be substituted for one checked bag. If you need to change or cancel, you will only pay the difference in fare (if one applies). If you need to cancel your entire flight ticket, you will receive all of your money back in the form of a credit that can be used for future travel.

You have the option to upgrade your travel experience for as little as $10 more each way with Southwest’s Wanna Get Away Plus fares. You will receive all of the usual Southwest perks plus:

• Transferable Flight Credit: You can transfer your flight credit to someone else to use for any flight (as long as you both have Rapid Rewards accounts).
• Same-day change: If there’s an open seat on a different flight between the same cities on the same calendar day, you can get it free of charge.
• You’ll earn 8x reward points per dollar spent.

Use the handy Low Fare Calendar to view airfare prices for every day of the week and month. Book tickets through April 11.

See Clark’s Travel Planning and Booking Guide for the best tips on stress-free travel, and check out InsureMyTrip.com for travel insurance.