Domestic route
Cheap flights from Phoenix to Denver
Phoenix Sky Harbor International Airport (PHX) to Denver International Airport (DEN). 601 miles, 1h 40m nonstop.
PHX to DEN at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 601 milesgreat-circle
- Typical flight time
- 1h 40mnonstop, gate to gate
- Nonstop airlines
- AAUAWNF94 airlinesAmerican, United, Southwest
- Nonstop flights per day
- 34all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday17% less than Friday
- Time difference
- 1h aheadDenver vs Phoenix
Phoenix to Denver
Round trips from $69
Per traveler, taxes and fees included. Lowest fare we found departs Sat, Jan 9.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppPhoenix to Denver fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Phoenix to Denver
4 airlines fly nonstop with 34 departures a day combined, plus 2 more with one stop.
- F9Frontier AirlinesLow-costNonstop · 11 flights a day · first checked bag from $55
- WNSouthwest AirlinesLow-costNonstop · 11 flights a day · first checked bag from $35
- UAUnited AirlinesStar AllianceNonstop · 7 flights a day · first checked bag from $40
- AAAmerican AirlinesoneworldNonstop · 5 flights a day · first checked bag from $40
- DLDelta Air LinesSkyTeamConnecting via SLC · first checked bag from $35
- NKSpirit AirlinesLow-costConnecting via LAS · first checked bag from $55
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Salt Lake City (SLC)DL1 airline
- Las Vegas (LAS)NK1 airline
Tips for this route
- American, United, Southwest and Frontier all fly PHX to DEN nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $69; September 2026 is the most expensive at $90 and up, a difference of $21 per traveler.
- Departing on a Tuesday averages 17% less than a Friday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
Destination guide
Denver: Mile-high base camp for the Rockies
Denver International is the third-busiest airport in the country and a hub for United, Southwest and Frontier, which keeps fares low from every direction. The city itself is a lively base for the Rockies, with ski resorts 90 minutes away.
Best time to visit: June–September for hiking and Red Rocks concerts; December–March for skiing. Spring can swing from snow to 70°F in a week; September is dependably dry and golden.
Flying the other way? Denver to PhoenixFares, airlines and tips for DEN to PHX.Ready to compare live fares?
See every airline on PHX–DEN side by side with bags and seat rules spelled out.
Search Phoenix to DenverPhoenix to Denver: common questions
How long is the flight from Phoenix to Denver?
A nonstop flight from Phoenix (PHX) to Denver (DEN) takes about 1h 40m gate to gate, covering 601 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from PHX to DEN?
American Airlines, United Airlines, Southwest Airlines and Frontier Airlines operate nonstop flights from Phoenix (PHX) to Denver (DEN), with 34 nonstop departures a day between them. One-stop options connect through SLC and LAS.
What is the cheapest month to fly from Phoenix to Denver?
Over the next six months, January 2027 has the lowest round-trip fares from Phoenix (PHX) to Denver (DEN), starting at $69 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Phoenix to Denver flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Phoenix and Denver?
Denver is 1 hour ahead of Phoenix. PHX is on America/Phoenix time and DEN on America/Denver time. Departure and arrival times in search results are always shown in local time at each airport.
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