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Cheap flights from San Francisco to Denver

Recently found return fares from $147, with October the cheapest month we know of. Compare dates, then book with the partner you choose.

Cheapest months to fly

Lowest recently found return fare in each month. Tap a month to see that month's calendar.

$147 Oct2026 $205 Apr2027

San Francisco → Denver

November 2026

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LowerHigherLowest this month

Lowest fares for the best day

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Airport in Denver

  • DENDenver International

Airport in San Francisco

  • SFOSan Francisco International

Watch this route

SFO
DEN

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More trips from San Francisco

All flights from San Francisco Denver to San Francisco flights
Las Vegasfrom $63 ONTfrom $67 Los Angelesfrom $68 San Diegofrom $68 PDXfrom $112 Vancouverfrom $213 Atlantafrom $251 Chicagofrom $254

FAQ

Questions about this route

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Help center Contact us
01What is the cheapest month to fly from San Francisco to Denver?

Based on recently found fares, October 2026 has the lowest price we know of, from $147. Prices change often, so check the calendar for current fares.

02Are the prices on this page final?

No. They are recently found fares. When you open a deal, the partner shows the live price, including taxes and fees, before you pay.

03How can I get an alert when flights to Denver get cheaper?

Use the price alert on this page. Choose your dates or a whole month and we will email you when the fare drops.