Currently, the most affordable month to book a Frontier flight from Phoenix Sky Harbor Intl Airport to Denver in December, with an average price of $192. Conversely, traveling with Frontier from Phoenix Sky Harbor Intl Airport to Denver in June will be the most expensive, with an average cost of $277. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
$221
February
$237
March
$269
April
$204
May
$223
June
$277
July
$277
August
$214
September
$210
October
$194
November
$198
December
$192
DEN Temperature | 30.2 - 73.4 °F |
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If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).
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