Philadelphia to Denver (PHL-DEN): nonstop upgrade & award space

United Airlines, American Airlines, and Frontier Airlines fly nonstop between Philadelphia (PHL) and Denver (DEN), roughly 67 times a week. With United Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. 2LNR tracks confirmed upgrade and award space on American Airlines, on every PHL to DEN departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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67
Nonstop flights a week
1,555 mi
Nonstop distance
Free
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Philadelphia to Denver flight schedule

Scheduled nonstop departures for PHL to DEN, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Philadelphia (PHL) to Denver (DEN)
Date Flight Airline Departs PHL Arrives DEN Duration Aircraft
UA 1423United Airlines08:0010:054h 5m738
UA 2307United Airlines08:0010:014h 1m7M8
UA 2817United Airlines08:0010:054h 5m738
AA 1313American Airlines09:2311:334h 10m7M8
UA 1537United Airlines10:0512:104h 5m738
AA 2082American Airlines13:0515:134h 8m738
UA 2644United Airlines15:4817:554h 7m7M9
AA 2878American Airlines17:5020:014h 11m738
F9 3339Frontier Airlines20:4423:044h 20m32Q
UA 1423United Airlines08:0010:054h 5m738
UA 2307United Airlines08:0010:014h 1m7M8
UA 2817United Airlines08:0010:054h 5m738
AA 1313American Airlines09:2311:334h 10m7M8
UA 1537United Airlines10:0512:104h 5m738
UA 2644United Airlines15:4817:554h 7m7M9
AA 3158American Airlines17:3519:464h 11m738
AA 2878American Airlines20:1022:244h 14m738
F9 3339Frontier Airlines20:4423:044h 20m32Q
UA 1423United Airlines08:0010:054h 5m738
UA 2307United Airlines08:0010:014h 1m7M8
UA 2817United Airlines08:0010:054h 5m738
AA 1313American Airlines09:2311:334h 10m7M8
UA 1537United Airlines10:0512:104h 5m738
UA 2644United Airlines15:4817:554h 7m7M9
AA 3158American Airlines17:3519:464h 11m738
AA 2878American Airlines20:1022:244h 14m738
F9 3339Frontier Airlines20:4423:044h 20m32Q
UA 1423United Airlines08:0010:054h 5m738
UA 2307United Airlines08:0010:014h 1m7M8
UA 2817United Airlines08:0010:054h 5m738
AA 1313American Airlines09:2311:334h 10m7M8
UA 1537United Airlines10:0512:104h 5m738
AA 2082American Airlines13:0515:134h 8m738
UA 2644United Airlines15:4817:554h 7m7M9
AA 2878American Airlines20:1022:244h 14m738
F9 3339Frontier Airlines20:4423:044h 20m32Q
UA 1423United Airlines08:0010:054h 5m738
UA 2307United Airlines08:0010:014h 1m7M8
UA 2817United Airlines08:0010:054h 5m738
AA 1313American Airlines09:2311:334h 10m7M8

Showing the first 40 of 65 scheduled PHL to DEN departures across the next 7 days with service. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every PHL to DEN date on the interactive map

Confirmed upgrade & award space on PHL to DEN departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Philadelphia to Denver to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each PHL to DEN departure, checked against live inventory so you know what is open before you book.

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Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See PHL to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Philadelphia to Denver nonstop

Carriers operating PHL to DEN nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

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Frequently asked questions about PHL to DEN

How far is Denver from Philadelphia?
PHL to DEN covers about 1,555 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from PHL to DEN?
United Airlines, American Airlines, and Frontier Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How many flights a week are there from PHL to DEN?
About 67 nonstop flights a week run between Philadelphia and Denver in the current schedule, operated by United Airlines, American Airlines, and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from PHL to DEN depart?
Scheduled PHL to DEN nonstops in the next 7 days with service leave between 08:00 and 20:44, local time at Philadelphia. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on PHL to DEN?
Open the PHL to DEN route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss PHL to DEN upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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