Home >> Fares From A City >> San Francisco, CA >> San Francisco, CA (SFO) To Denver, CO (DEN)
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    Thu, November 26, 2015
    Wed, December 02, 2015
    Thu, December 17, 2015
Peter T.
Staff Airfare Analyst
Peter's Notes:
No min. stay. 50% Off Promo Code Fare; Travel through mid-December. Fare can be bought one-way for half the lowest roundtrip price.

Book this fare on FlyFrontier.com using promo code THANKYOU for travel between Dec. 2 - 17, 2015.

This is the lowest non-member fare found within the promo code travel period and may not be available throughout the entire travel period or on a daily basis. Lower fares may be available for Frontier Discount Den members.

Promo code takes 50% off the base fare and expires at 11:59 pm ET on Nov. 26, 2015. However, the lowest available fare can change at any time.

Frontier charges a $30-$35 fee each way for carry-on bags larger than 18x14x8 inches and a $25-$30 fee each way for 1st checked bag no larger than 62 linear inches (length + width + depth) and no heavier than 50 pounds. These bag fees apply to online purchases before check-in. Higher fees apply at the airport.

During booking on FlyFrontier.com, you can purchase "The Works", which includes one checked bag, one carry-on bag, stretch seating, no change fees, and refundability, for much less than purchasing these items separately.

Seats are not available on all flights or all dates of travel. You may need to have flexible travel dates to find this fare. Fares for travel on holidays may be higher.

All mandatory taxes/fees are included in the price. Tax-inclusive fare may be a few dollars higher or lower depending on the airport you connect through, if any. Baggage fees, if applicable, and other optional fees are not included. Our Dealhounds found this airfare using flexible date search. This means we searched a range of dates to find you the best price.

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Reviews for San Francisco to Denver
6 Traveler Reviews
"The fees will rip you off FAST"
Flight from San Francisco to Denver
Airline: Frontier
RT/OW: roundtrip
Date of Flight: January 2014
Seat Class: economy
Check-in Experience
In-flight Service
Seat Comfort
I STRONGLY recommend that you only use Frontier Air as a last resort for your travel. They have recently changed the way they do business and their new business plan is to hit you for a fee at every chance. Honestly I felt as though I had gone into a bad neighborhood and was getting held-up at every corner., They charge you for EVERY bag you take on the plane, you cannot get a seat assignment before the gate unless you pay an extra $8 fee, they even charge you $2 for water on the flight. One of the most humiliating things is that just before boarding the plane they demand that every purse, bag, briefcase and carry-on must fit into one of two different measurement devices and if it does not, they charge you $100 to check the bag!!! It took an extra 45-minutes for everyone to line up and go through this humiliation. Mothers with children were trying to manage, an older woman got confused. Really, just for a few more dollars. The flight attendants HATE the new rules because it makes the passengers MAD and they blame the flight attendants. Not the attendants fault of course, but I can understand the frustration. So, be smart and use your dollars to vote for a better, less greedy approach. I say this even if you pay a few dollars more up front, because in the end you will probably NOT save anything on Frontier.
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Flight from San Francisco to Denver (SFO - DEN)
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There are approximately 688 flights covering the route from SFO International Airport in San Francisco to Denver International Airport in Denver, provided by as many as 8 airlines.
The following airlines often offer cheap flights from San Francisco to Denver
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