Which airports does Frontier Airlines fly between San Francisco and Denver?
For flights between San Francisco and Denver, Frontier Airlines operates the following airport routes:
For flights between San Francisco and Denver, Frontier Airlines operates from the following airport routes: San Francisco Intl Airport (SFO) to Denver International (DEN)
What do Frontier Airlines flights from San Francisco to Denver cost?
One of Frontier Airlines cheapest prices for a San Francisco to Denver flight we have right now is $24.
On average though, flights with Frontier Airlines cost $276.22 for the route San Francisco to Denver, but it mostly depends on the season and how far in advance you book your tickets.