Phoenix Sky Harbor International Airport
Phoenix, United StatesPHX / KPHX
International hub · 145 direct destinations · 3 runways · longest runway 11,490 ft
78 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Phoenix → Denver
PHX
PhoenixPhoenix Sky Harbor International Airport
PhoenixPhoenix Sky Harbor International AirportDENDenverDenver International Airport
DenverDenver International Airport- Distance
- 601 mi
- Estimated flight time
- ~1h 45m
Denver is currently 1 hour ahead of Phoenix.
Observed nonstop
How often does this route fly?
Frequency
Throughout the day
On average around 23.5 flights a day, observed from October 2025 to September 2026.
- 23.5
- flights per day
- 29
- busiest month · Mar
- 21
- quietest month · Jul
- 1 hr 21 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 23Jan2026
- 25Feb
- 29Mar
- 25Apr
- 24May
- 22Jun
- 21Jul
- 21Aug
- 22Sep
- 26Oct2025
- 24Nov
- 22Dec
Airlines
Who flies it
Southwest Airlinesall year
United Airlinesall year
Frontier Airlinesall year
American Airlinesall year
Envoy Airwinter
SkyWest Airlinesautumn
Contour Airlinessummer
Delta Air Linesnow and then
Key Lime Airnow and then
Through the day
Departure times
Local time in Phoenix. Most departures between 06:00 and 09:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 25.8Mon
- 23.6Tue
- 21.3Wed
- 22.9Thu
- 25.7Fri
- 22.9Sat
- 22.5Sun
Fleet
Aircraft observed
- Boeing 737 MAX 8B38M21%
- Boeing 737-800B73820%
- Boeing 737-700B73712%
- Airbus A321neoA21N9%
- Airbus A320neoA20N8%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 23 | 693 |
|
| February 2026 | 25 | 705 |
|
| March 2026 | 29 | 861 |
|
| April 2026 | 25 | 781 |
|
| May 2026 | 24 | 687 |
|
| June 2026 | 22 | 633 |
|
| July 2026 | 21 | 656 |
|
| August 2026 | 21 | 622 |
|
| September 2026 | 22 | 671 |
|
| October 2025 | 26 | 787 |
|
| November 2025 | 24 | 729 |
|
| December 2025 | 22 | 671 |
|
Airlines observed on this route
From observed callsign routes on PHX-DEN - not a booking guarantee.
American Airlines
AA · AALHub: DFW Dallas-Fort Worth
Contour Airlines
LF · VTEHub: CLT Charlotte
Delta Air Lines
DL · DALHub: ATL Atlanta
Envoy Air
MQ · ENYHub: DFW Dallas-Fort Worth
Frontier Airlines
F9 · FFTHub: DEN Denver
Key Lime Air
KG · LYMHub: DEN Denver
SkyWest Airlines
OO · SKWHub: ORD Chicago
Southwest Airlines
WN · SWAHub: DEN Denver
United Airlines
UA · UALHub: ORD Chicago
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Phoenix: 145.
- Direct destinations observed from Denver: 203.
The airports on this route
Denver International Airport
Denver, United StatesDEN / KDEN
International hub · 203 direct destinations · 6 runways · longest runway 16,001 ft
32 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Phoenix to Denver
The observed direct connection between Phoenix Sky Harbor International Airport (PHX) and Denver International Airport (DEN) covers approximately 601 mi. The estimated flight time is around 1h 45m. American Airlines, Contour Airlines, Delta Air Lines, Envoy Air, Frontier Airlines, Key Lime Air, SkyWest Airlines, Southwest Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Phoenix from Denver by air?
- The great-circle distance between Phoenix Sky Harbor International Airport and Denver International Airport is approximately 601 mi.
- How long is the flight from Phoenix to Denver?
- Based on the distance, the estimated flight time is about 1h 45m. This is an estimate, not a schedule.
- Is there a direct connection from Phoenix to Denver?
- Yes, a direct connection between PHX and DEN has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: American Airlines, Contour Airlines, Delta Air Lines, Envoy Air, Frontier Airlines, Key Lime Air, SkyWest Airlines, Southwest Airlines and United Airlines.
- How often is there a flight from Phoenix to Denver?
- On average around 23.5 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 8,496 observed flights. Mainly Southwest Airlines, United Airlines, Frontier Airlines. That is an observation, not a timetable.
- What is the current time difference between Phoenix and Denver?
- Denver is currently 1 hour ahead of Phoenix.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.