Starting at $39 one way, snag nonstop fares to Denver for travel into March. This sale from Frontier Airlines offers a savings of 40% on competing fares.
Fly most Mondays-Thursdays and Saturdays through March 13 from the following sample cities (fares are one way, including tax):
These deals, which are part of a larger sale that includes discounted fares from 59 U.S. cities, require a seven-day advance purchase.
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