Frontier is having another ultra-low fare sale and this time spring break travel dates in March are included! 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 30 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 on scattered dates through early April.

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, February 20, 2019, or before seats sell out.

Nonstop fares include:

Greenville to Tampa $35 roundtrip

Atlanta to Miami $39 roundtrip

Atlanta to Orlando $39 roundtrip

San Francisco to Las Vegas $39 roundtrip

Norfolk to Tampa $39 roundtrip

Philadelphia to Charleston $39 roundtrip

Raleigh to West Palm Beach $39 roundtrip

Birmingham to Orlando $39 roundtrip

Huntsville to Orlando $39 roundtrip

St. Louis to Jacksonville $39 roundtrip

Wichita to Denver $39 roundtrip

Tulsa to Denver $39 roundtrip

Denver to Palm Springs $39 roundtrip

Denver to Reno $39 roundtrip

Trenton to Nashville $39 roundtrip

Memphis to Orlando $62 roundtrip

Little Rock to Orlando $68 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 Greenville GSP on Friday, March 15, returning from Tampa TPA on Friday, March 22, for $39 roundtrip.

Traveling with kids? Frontier has extended its Kids Fly Free promotion through February 25, 2019. Click here for details.

Featured image via Shutterstock.

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