Here's another "buck sale" from Frontier. Base fares of $1 each way add up to $39 roundtrip after taxes and booking fees. Choose from around 50 routes at this incredibly low price.

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 between August 14 and October 3. 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 July 25, or before seats sell out.

Nonstop fares include:

Pittsburgh to Orlando $39 roundtrip

Salt Lake City to Las Vegas $39 roundtrip

San Jose to Las Vegas $39 roundtrip

Atlanta to Cincinnati $39 roundtrip

Atlanta to Orlando $39 roundtrip

Indianapolis to Philadelphia $39 roundtrip

Orlando to Raleigh $39 roundtrip

Sacramento to Las Vegas $39 roundtrip

Charleston to Philadelphia $39 roundtrip

Cincinnati to Jacksonville $39 roundtrip

Harrisburg to Raleigh $39 roundtrip

Chicago to Charleston $39 roundtrip

Jacksonville to Kansas City $39 roundtrip

Birmingham to Orlando $39 roundtrip

Orlando to New Orleans $39 roundtrip

Austin to New Orleans $39 roundtrip

Austin to Albuquerque $39 roundtrip

Wichita to Denver $39 roundtrip

Denver to Albuquerque $39 roundtrip

Jacksonville to San Antonio $39 roundtrip

San Antonio to New Orleans $39 roundtrip

Tulsa to San Antonio $39 roundtrip

San Antonio to Albuquerque $39 roundtrip

Trenton to Charleston $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 $25 each way. Larger carry-on bag fees start at $30 each way.

Header image by Colin A Pierce via Shutterstock.