San Francisco to Denver (SFO → DEN). We are tracking 8 fares on this route.
Cheapest tracked fare $73 · typical price $162 · you save about $89 (55%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Frontier Airlines
2026-10-06
1 stop
$73
Frontier Airlines
2026-10-05
1 stop
$74
Frontier Airlines
2026-09-08
1 stop
$81
—
2026-09-23
Direct
$89
—
2026-10-07
Direct
$89
—
2026-11-04
Direct
$89
—
2027-01-06
Direct
$109
Frontier Airlines
2026-09-04
Direct
$125
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from San Francisco to Denver get?
The cheapest fare we have tracked on this route is $73, compared with a typical $162 for a trip of this distance.
Is it cheaper to fly to Denver from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make San Francisco to Denver cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.