Here's another "buck sale" from Frontier. Base fares of $1 each way add up to $39 (or lower) roundtrip after taxes and booking fees. Fares can also be bought one-way for just $20. Choose from around 50 routes at this incredibly low price. Many more routes are available for under $100 roundtrip.

If you're unfamiliar with Frontier Airlines and how this ultra-low-cost carrier differs from other airlines, read up on Everything You Need to Know Before You Fly Frontier.

Availability is limited so you must be somewhat flexible to find the lowest price. Travel days will vary by route, but generally, fares are available from January through mid-March. A few routes may have some availability in December as well. Avoid blackout dates December 20, 2018 - January 6, 2019, March 1-4, and 7-11, 2019.

Most of these routes are only flown a few times each week so be sure to check out the specifics in the fare details on your route.

Tickets must be booked by 11:59 pm ET, December 5, or before seats sell out.

Nonstop fares include:

Greenville to Tampa $34 roundtrip

Louisville to Orlando $37 roundtrip

Atlanta to Miami $38 roundtrip

Denver to Las Vegas $39 roundtrip

San Francisco to Las Vegas $39 roundtrip

Grand Rapids to Tampa $39 roundtrip

Orlando to Raleigh $39 roundtrip

Cincinnati to Denver $39 roundtrip

Nashville to Ft. Myers $39 roundtrip

Cleveland to West Palm Beach $39 roundtrip

Columbus to West Palm Beach $39 roundtrip

Norfolk to Tampa $39 roundtrip

Birmingham to Orlando $39 roundtrip

Orlando to Lafayette $39 roundtrip

Raleigh to New Orleans $39 roundtrip

Little Rock to Orlando $39 roundtrip

Omaha to Orlando $39 roundtrip

Harlingen to Denver $39 roundtrip

Lafayette to Denver $39 roundtrip

Denver to Little Rock $39 roundtrip

Denver to Oklahoma City $39 roundtrip

Denver to Tulsa $39 roundtrip

Denver to El Paso $39 roundtrip

These fares all work in reverse as well. You'll have to decline all extras to get the lowest price.

Keep in mind that Frontier charges extra for any bags larger than a small personal item (small backpack, purse, etc.). Pack super light to get the lowest price. Checked bag fees start at $30 each way. Larger carry-on bag fees start at $35 each way.

For a complete look at baggage fees on all airlines, check out our Bag Fee Chart.

As an example booking, I found seats departing Atlanta ATL on Saturday, January 26 returning from Miami MIA on Tuesday, January 29, for $38 roundtrip.

Header image via Shutterstock.

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