It’s not too late to grab an airfare deal and head out of town for the long Labor Day weekend.

A few airlines have kicked off Labor Day airfare sales and special last-minute deals. However, even if an airline isn’t advertising a Labor Day sale, it doesn’t mean you can’t find some discounting.

Use our flexible calendar search to find the latest airfares from your city to your chosen destination, and to find the cheapest days to fly for the Labor Day holiday.

Here are some of the latest Labor Day airfare sales:

Southwest Airlines Last-Minute Labor Day Sale

Southwest Airlines has kicked off a last-minute Labor Day airfare sale for all of the procrastinators out there. If you haven’t booked your travel yet, Southwest can help you find airfare deals to destinations across the country.

Purchase your airline ticket by September 2 for travel through September 6, 2010. Visit Southwest Airlines for complete details.

American Airlines Labor Day Airfare Sale

American Airlines launched their Labor Day airfare sale a while ago, and the carrier is quick to point out that seats are limited and deals might not be available on your chosen flight. That said, you can still find deals to/from multiple U.S. destinations. Airfare starts as low as $49+ each-way on some routes.

Labor Day sale fares are good for travel on September 4, 5, and 8, 2010. Visit American Airlines for all of the details.

Frontier Airlines Labor Day Airfare Sale

Frontier Airlines is also leaving the door open for those who like to wait. You have until September 3 to grab a Labor Day deal for travel September 4, 5 and 8, 2010.

Find sale fares on flights to/from a range of U.S. cities including Denver, Las Vegas, New Orleans, Minneapolis/St. Paul, and San Diego. Airfare starts as low as $44+ each-way on some routes.

Visit Frontier Airlines for a complete list of deals of details.