Here's another "buck sale" from Frontier. Base fares of $1 each way add up to $39 roundtrip after taxes and booking fees. Fares can also be bought one-way for just $20. Choose from around 40 routes at this incredibly low price.

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 through mid-November or mid-December, with a 7-day advance purchase required. Avoid blackout dates between November 16-26. Pretty much all 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, on September 12, or before seats sell out.

Nonstop fares include:

Greenville to Orlando $34 roundtrip

Charlotte to Philadelphia $37 roundtrip

San Antonio to Charlotte to $37 roundtrip

Trenton to Charlotte $37 roundtrip

Atlanta to Miami $39 roundtrip

Cincinnati to Orlando $39 roundtrip

Salt Lake City to Las Vegas $39 roundtrip

Atlanta to Cincinnati $39 roundtrip

Atlanta to Orlando $39 roundtrip

Austin to Atlanta $39 roundtrip

Sacramento to Las Vegas $39 roundtrip

Philadelphia to Charleston $39 roundtrip

Austin to Jacksonville $39 roundtrip

Birmingham to Orlando $39 roundtrip

Wichita to Denver $39 roundtrip

Tulsa to Denver $39 roundtrip

Denver to Tucson $39 roundtrip

San Antonio to New Orleans $39 roundtrip

Norfolk to Tampa $57 roundtrip

Des Moines to Denver $57 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 $25 each way. Larger carry-on bag fees start at $30 each way.

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

Header image by Colin A Pierce via Shutterstock.

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