Frontier Airlines, an ultra low-cost air carrier, have round trip airfares travelling to and from Denver (DEN) and San Diego (SAN) for $106, nonstop. Frontier charges for anything beyond a small personal item onboard. However, even if you purchased extras, it will most likely still be cheaper than a regular economy airfare with another airline. This is nonstop as well.
Departs SAN: Dec 1-10, 12, 14; Jan 6, 8-31; Feb 1-10, 24, 27
Departs DEN: Dec 2-10; Jan 5-31; Feb 1-10, 24, 27
Use dates and book on Priceline [priceline.com]
or Expedia [expedia.com]
and consider bundling hotel & car rental with your airfare to save more money.
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