Ending today, Frontier Airlines offers 1-way fares on over 76 routes nationwide with prices starting at $29 as part of its Summer Sale. (Click on "Frontier Airlines" in the top line to see this sale.) That's the lowest price we could find by $29. This price is valid on flights departing from Denver, CO (DEN) with arrival in Las Vegas NV (LAS) on August 26. Book this travel deal today for travel from August 25 through October 22. Other notable fares:

Atlanta (ATL) to New Orleans (MSY) from $29

San Francisco (SFO) to Phoenix (PHX) from $29

Miami (MIA) to Atlanta (ATL) from $39

click here to see all Frontier Airlines fares

All prices, dates, and booking details were valid at the time of publication.