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    Fri, July 29, 2016
    Wed, November 16, 2016
Peter T.
Staff Airfare Analyst
Peter's Notes:
No min. stay. 20% Off Promo Code Fare; Late Summer/Fall travel. Fare can be bought one-way for half the lowest roundtrip price.
Book this fare on FlyFrontier.com using promo code SAVE20 for travel between Aug. 5 - Nov. 16, 2016. Blackout dates apply: Sep. 1-2, 5; Oct. 7 & 10, 2016. Promo code is valid for Mon-Sat travel, however, many routes are not flown on a daily basis.

This is the lowest fare found within the promo code travel period and may not be available throughout the entire travel period or on a daily basis. Some routes are seasonal and may not operate through the entire travel period. Lower fares may be available for Frontier Discount Den members.

Promo code takes 20% off the base fare only and does not apply to taxes/fees. This promo code expires at 11:59 p.m. ET on Jul. 29, 2016. 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 first 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 Phoenix to Denver
15 Traveler Reviews
"appreciate two free suitcases and friendly crew"
Flight from Phoenix to Denver
Airline: Southwest
RT/OW: roundtrip
Date of Flight: April 2011
Seat Class: economy
Check-in Experience
In-flight Service
Seat Comfort
With regard to SW Airlines I had a good flight each way. The crews were friendly and helpful - on return flight they took my box, computer & coat from me right at the entry and put them overhead & got them for me at end of flight. With regard to the airports, Dallas is far superior to Phoenix with regard to service. In Dallas the wheelchair attendants were right there when plane landed and immediately took me to baggage claim area. In Phoenix, and this has happened on several other occasions, there were no attendants when the plane landed and when they did come I was wheeled to the gate area and left sitting there for some time feeling awkward and embarrassed. As on other occasions the attendant had to wheel two people at the same time which caused further embarrassment. In Dallas the attendant asked if I wanted to get water for my water bottle and if I would like to stop at the restroom. In Phoenix such courtesy was not extended and with two people to take care of simultaneously it was no wonder.
Found by other travelers: Phoenix, AZ (PHX) to Denver, CO (DEN)
Flight from Phoenix to Denver (PHX - DEN)
Sun, Jul 27 - Wed, Jul 30
Flight from Phoenix to Denver (PHX - DEN)
Thu, Sep 4 - Tue, Sep 9
Flight from Phoenix to Denver (PHX - DEN)
Sun, Jun 8 - Mon, Jun 9
Flight from Phoenix to Denver (PHX - DEN)
Thu, Jun 26 - Sun, Jun 29
Spirit Airlines
Flight from Phoenix to Denver (PHX - DEN)
Thu, Jun 26 - Sat, Jul 12
Spirit Airlines
Flight from Phoenix to Denver (PHX - DEN)
Sat, Jun 28 - Mon, Jun 30
Spirit Airlines
Flight from Phoenix to Denver (PHX - DEN)
Fri, Aug 15 - Thu, Aug 21
Spirit Airlines
Flight from Phoenix to Denver (PHX - DEN)
Wed, Jul 2 - Mon, Jul 7
Flight from Phoenix to Denver (PHX - DEN)
Wed, Jul 2 - Sun, Jul 6
US Airways
Flight from Phoenix to Denver (PHX - DEN)
Mon, Jun 30 - Sun, Jul 6
Spirit Airlines
There are approximately 155 flights covering the route from Sky Harbor International Airport in Phoenix to Denver International Airport in Denver, provided by as many as 7 airlines.
The following airlines often offer cheap flights from Phoenix to Denver
Great Lakes Aviation
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