$118 Cheap United flights Phoenix (PHX) to Denver (DEN)

View $118 flight on Tue, Mar 31, 2026Opens in a new window

$118 Cheap United flights Phoenix (PHX) to Denver (DEN)

Prices were available within the past 7 days and start at $118 for one-way flights and $137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Dec 25 - Thu, Jan 1
PHX
Phoenix
DEN
Denver
$137 Roundtrip, found 4 days ago
$137
Roundtrip
found 4 days ago
Select United flight, departing Thu, Dec 25 from Phoenix to Denver, returning Thu, Jan 1, priced at $137 found 4 days ago

Find the cheapest month to fly from Phoenix (PHX) to Denver (DEN)

February is typically the cheapest month to fly

From $48 - $98 per traveler.

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $121
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $121
Flights from Phoenix (PHX) to Denver (DEN)
Origin airport
Sky Harbor Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
961 km
Average flight time
1 hour 45 mins